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Revision 305 by tony, Fri Jul 17 22:51:19 2020 UTC vs.
Revision 407 by tony, Tue Dec 6 23:18:32 2022 UTC

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1	<	FBINTF Change Log  version          (1.1-5 Build 12044) Fri, 17 Apr 2020 12:30:01 +0100
1	>	IBX Change Log  version (2.5-1 Build nnn) Tue, 6 Dec 2022 23:13:00 +0000
2
3	<	1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
4	<	case sensitive
3	>	1. IBCustomDataset: avoid problem with additions to TFieldType by using a subset instead.
4
5	<	2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
5	>	2. TIBDynamicGrid: change DrawCellText declaration to comply with laz 2.3.0
6
7	<	3. New API Calls:
9	<	IColumnMetaData.GetStatement
10	<	IColumnMetaData.GetTransaction
11	<	ISQLData.GetStrLength
12	<	IResults.GetStatement
13	<	IAttachment.OpenBlob (using Blob metadata)
14	<	IAttachment.OpenArray (using array metadata)
7	>	IBX Change Log  version (2.5-0 Build 13868) Fri, 29 Jul 2022 09:52:01 +0100
8
9	<	4. FBMessages: removal of unused messages
9	>	1. TIBTransaction: new properties
10	>	property TransactionID: integer read GetTransactionID;
11	>	property IsReadOnly: boolean read GetIsReadOnly;
12	>	{published}
13	>	property TransactionName: string read FTransactionName write SetTransactionName;
14
15	<	5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
15	>	2. IBCustomDataset: per row blob and array buffer cached clear before processing
16	>	Insert or Update...Returning. This allows blobs and arrays to be returned
17	>	by the statement.
18
19	<	6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
19	>	3. TSQLXMLReader moved from IBXScript to package fbintf unit IBUtils.
20
21	<	FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
21	>	4. TransactionName initialised to a newly generated GUID if empty.
22
23	<	1. Fix a problem with the SQL parameter parser that failed to recognise parameters
24	<	where the second character of the parameter name is a numeric.
23	>	5. New unit: IBJournal. This provides the TIBJournal component which is a wrapper
24	>	for the fbintf package's journaling capability. TIBJournal is used to set the
25	>	file path and filename for the journal file and to Enabled (start journaling) and
26	>	disable (stop journaling). See fbintf/doc/README.ClientSideJournaling.pdf for
27	>	more information, and comments in IBJournal.pas.
28
29	<	2. New method for IAttachment: procedure getFBVersion(version: TStrings);
28	<	This returns the isc_version connection information as one or more lines.
29	<	This is the same information as returned by isql with the -z option.
29	>	6. TIBDatabase.InternalTransaction is now a read only transaction.
30
31	<	3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
32	<	is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
33	<	compiler option then the Firebird 3 API is no longer compiled in.
31	>	7. Bug fix: blob id no longer set to null on update when blob has not been
32	>	retrieved.
33
34	<	4. IColumnMetaData: new method.
34	>	8. Row auto refreshed on update/insert if blob or array field updated and field
35	>	not in a returning clause.
36
37	<	TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
38	<	dfDateTime,   {SQL DATETIME}
39	<	dfTime);
37	>	9. ColumnCount moved from record buffer header to a single per dataset count. Reduces
38	>	buffer overhead and avoids problem when refresh query has a different column
39	>	count to select query i.e. incorrectly changing number of columns.
40
41	<	function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
41	>	10. IBExtract: support added for UDR Functions, Procedure and Trigger declarations.
42
43	<	This returns the max. number of characters returned by the "AsString" method
44	<	when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
43	>	11. TIBDatabaseInfo. New property FirebirdVersion. This returns the current Firebird version
44	>	string. Note that the Version property returns an InterBase compatible version string.
45
46	<	5. Additional argument for IAttachment.PrepareWithNamedParameters -
47	<	CaseSensitiveParams: boolean = false
46	>	12. IBExtract: ensure sql identifiers returned as a LIST are always quoted.
47
48	<	If this argument is set to true then SQL parameter names are assumed to be case
50	<	sensitive and must be referenced (using ISQLParams.ByName) using the case
51	<	sensitive name.
48	>	IBX Change Log  version (2.5-0 Build 12933) Mon, 29 Nov 2021 14:59:54 +0000
49
50	<	6. Bug fix: when setting a query parameter, it is now possible, when the parameter
51	<	is of type VarChar or Char to set the parameter to a numeric value (e.g. using
52	<	.AsCurrency) and then subsequently to update the value to a non-numeric string
56	<	using .AsString.
50	>	1. IBCustomDataset: Modify TISQL component now defaults to GoToFirstRecordOnExecute := true.
51	>	This is for compatibility with Firebird 5 where Update...Returning can return
52	>	a cursor.
53
54	+	IBX Change Log  version (2.4-3 Build 12886) Sat, 23 Oct 2021 14:58:30 +0100
55
56	+	1. Add try-..except check when initially loading library in IDE. This should
57	+	ensure that IDE continues to load even when a failure occurs in IBX load
58	+	library.
59
60	<	FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
60	>	2. IBXScript: now recognises a CASE...END block within a stored procedure and
61	>	hence will correctly detect end of the outer containing block when the block
62	>	contains a SELECT ... CASE ... END construct.
63
64	<	1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
64	>	3. IBExtract: some further tidying up to remove extraneous white space.
65
66	<	2. Restrict IsMultiThread check to Unix only for compatibility with
67	<	https://bugs.freepascal.org/view.php?id=30535
66	>	4. IBCustomDataSet: DefaultFieldClasses array declaration updated to avoid compile time
67	>	errors when extra elements are added to DB.TFieldType.
68
69	<	3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
68	<	named parameters and is intended to avoid problems with (e.g.) Execute Block
69	<	and processing internal parameters as statement parameters.
69	>	5. IBUpdate: updated to reflect changes to ISQLParam.
70
71	<	4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
72	<	or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
71	>	6. IBXScript: now correctly parses a DECLARE statement which includes a quoted string.
72
73	<	5. New function added to IB.pas
73	>	7. IBExtract: for ODS >=13, increment generator value by one for ALTER SEQUENCE statement.
74
75	<	function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
75	>	8. IBSQL: Support for scrollable cursors added (note: local databases only)
76
77	<	This allows a Firebird Library to be loaded from an explicit path. use the
79	<	IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
80	<	the library. It is possible to load Firebird libraries from different locations
81	<	simultaneously, each with a distinct IFirebirdAPI.
77	>	IBX Change Log  version (2.4-2 Build 12773) Mon, 23 Aug 2021 11:59:42 +0100
78
79	<	FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
79	>	1. TIBDatabaseInfo: review and tidy-up of property types. Most widen to int64 with the
80	>	exception of those defined to be one byte wide e.g. DBImplementationNo.
81
82	<	1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
86	<	program compiled with -CR command line switch.
82	>	2. TIBSQL: Batch Update/Insert support added.
83
84	<	2. IServiceManager additions (informational):
85	<	function getProtocol: TProtocol;
86	<	function getPortNo: AnsiString;
84	>	3. TIBStoredProc: when generating the SQL, the value of the StoredProcName property
85	>	is no longer automatically converted to upper case when it is syntactically a
86	>	SQL Identifier. This is to support the use of stored procedures defined e.g.
87	>	as CREATE PROCEDURE "iCASE".
88
89	<	3. IServiceManager improved error handling. Interfaces changed:
90	<	function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
91	<	function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
92	<	function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
89	>	There could be a backwards compatibility issue when the StoredProcName was entered
90	>	manually at design time. That is not selected from the drop down list. If the
91	>	StoredProcName is entered in mixed case and the procedure was declared e.g. as
92	>	CREATE PROCEDURE iCASE, then the SQL generation will be incorrect. You should
93	>	ensure that the value of the StoredProcName is all upper case, unless it was
94	>	declared under dialect 3 and explicitly as mixed case (i.e. delimited by double
95	>	quotes).
96
97	<	4. IAttachment addition (informational)
98	<	function GetSecurityDatabase: AnsiString;
97	>	Note that when a stored procedure name was declared delimited in double quotes,
98	>	as in the first example above, the value of the StoredProcName property must not
99	>	include the delimiters (double quotes).
100
101	<	5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
102	<	thus now returns accumulated stats for a select statement from opening a cursor
102	<	up to the last fetch.
101	>	4. IBXUpgradeConfFile: an exception is now raised if a patch file specified in
102	>	upgrade.conf was not found. This replaces silently ignoring the problem.
103
104	<	6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
105	<	the problem.
104	>	5. TIBLocalDBSupport: new property "SectionHeaderTemplate". This defaults to
105	>	'Version.%.3d' and is used to generate the section header names (for a given
106	>	version no.) in the upgrade.conf file.
107
108	<	7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
108	<	replaces deprecated "comp" type.
108	>	IBX Change Log  version (2.4-1 Build 12550) Wed, 23 Jun 2021 13:59:14 +0100
109
110	<	10. Testsuite Test10 updated to include thread synchronisation for event reporting.
110	>	1. -c command line option added to fbsql example program. Used to set connection
111	>	character set.
112
113	<	11. URL Connection Strings: inet4 and inet6 now recognised.
113	>	IBX Change Log  version (2.4-0 Build 12543) Mon, 22 Feb 2021 11:00:08 +0000
114
115	<	12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
115	>	1. Firebird 4 support added.
116
117	<	13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
117	>	2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
118	>	extended precision NUMERIC fields are supported.
119
120	+	3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
121
122	<	FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
122	>	4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
123	>	and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
124
125	<	1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
125	>	5. IBExtract now supports FB4 enhancements:
126	>	- new data types as above
127	>	- Identity column extensions
128	>	- Default user role
129	>	- SQL Security clause for Database, Tables, Procedures, Functions and Triggers
130	>	- Internal Functions
131
132	<	2. IAttachment: add two new methods
124	<	function HasDefaultCharSet: boolean;
125	<	function GetDefaultCharSetID: integer;
132	>	6. IBExtract: new event: OnExtractLines.
133
134	<	These return, respectively, true if a connection default character set was
128	<	specified and the character set id of the connection default character set.
129	<	The DefaultCharSetID is cached when the connection is opened and hence does not
130	<	require a database lookup.
134	>	7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
135
136	<	3. Avoid exception when a text blob is a stored procedure parameter.
136	>	8. IBXServices: Server version no. parsing now allows any letter before major version number
137	>	and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
138
139	<	4. Update test suite to include a test for a stored proc returning a text blob.
139	>	9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
140	>	format for rendering a time zone.
141
142	<	5. IAttachment: add
143	<	function GetRemoteProtocol: AnsiString;
138	<	function GetODSMajorVersion: integer;
139	<	function GetODSMinorVersion: integer;
140	<	function GetAuthenticationMethod: AnsiString;
142	>	10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
143	>	to convert TIME WITH TIME ZONE data type values to and from GMT.
144
145	<	These results are cached when the connection is opened and hence do not
146	<	require a database lookup.
145	>	11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
146	>	IIBGUIInterface and IIBTimerInf respectively.
147
148	<	6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
149	<	connect string used to create/connect to the database.
148	>	12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
149	>	now accessible as properties of TIBDatabase and TIBTransaction respectively.
150
151	<	7. IAttachment: Create Database using SQL statement. The username and password
152	<	are now extracted and used to populate a DPB made available via IAttachment.getDPB.
153	<	It is now possible to use IAttachment disconnect/connect to reconnect to
151	<	a database for which the initial connection was established by a create
152	<	database sql statement. Available in FPC only.
151	>	13. String Fields: when a fixed character with (CHAR) field is returned, it is now
152	>	truncated to its fixed character width rather than being right padded with
153	>	white space to the maximum data size.
154
155	<	8. Update Test 1 to test 5, 6 and 7 above.
155	>	14. TIBTable.Empty table. In additional to deleting all records in the underlying
156	>	table, the internal buffers are now also flushed ensuring that the TIBTable is
157	>	also empty.
158
159	<	9. IBUtils code tidy up.
159	>	15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
160
161	<	10. Parameter Block interfaces "find" method. As documented, this should have
162	<	returned a nil interface when the item could not be found. Instead, an empty
160	<	interface item was returned. "Find" now works as documented and will return
161	<	a nil interface if the item cannot be found.
161	>	16. TIBXControlService descendents: DatabaseName may now be set using a database
162	>	connect string. The database name is extracted from the connect string.
163
164	<	11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
164	>	17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
165
166	<	12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
166	<	requests with additional parameters. This is to enable support for fb_info_page_contents
167	<	(return of page contents). Response to fb_info_page_contents returned as
168	<	a string with code page CP_NONE.
166	>	18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
167
168	<	13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
169	<	test suite updated.
168	>	19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
169	>	not being present as required.
170
171	<	14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
172	<	a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
171	>	20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
172	>	version that can be customised to work with other database drivers.
173
174	<	15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
175	<	An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
178	<	default connection port to be specified.
174	>	21. ISQLMonitor: use platform specific LineEnding to delimit messages. Avoids
175	>	unnecessary CR at end of line on Unix platforms.
176
177	<	FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
177	>	22. ISQLMonitor: Unix: Default semaphore timeout increased from 1 second to 10
178	>	seconds in order to reduce risk of message loss.
179
180	<	1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
181	<	Scale is no longer ignored.
180	>	23. ISQLMonitor: read and write count statistics now available via:
181	>	property TIBSQLMonitor.ReadCount;
182	>	IIBSQLMonitorHook.GetWriteCount: integer;
183
184	<	2. Fix issues with setting SQL Param values using SetAsString with Date values
186	<	not in locale format but which are recognised by Firebird. Date values that
187	<	cannot be converted to a string using Pascal library are now passed through
188	<	to Firebird as Text Strings.
184	>	24. ISQLMonitor tidy up and unit split. IPC functions moved to new unit IBIPC.
185
186	<	3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
191	<	UTF8 and not UNICODE_FSS.
186	>	IBX Change Log  version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
187
188	<	4. Charset ID problem. When using Firebird 3, with no default database character set
189	<	and a column has a non-default collation specified, an incorrect character set
190	<	id was being reported that could result in a 'division by zero' error when
191	<	used by IBX. This has now been fixed.
188	>	1.  TIBStringField: when a string value is read from a dataset buffer, if the
189	>	number of UTF8 characters exceeds the string size then string is truncated
190	>	to the maximum string size. This is  usually a problem with fixed width columns
191	>	right padded with white space.
192
193	<	5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
194	<	CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
195	<	the character sets supported can be updated on a per database basis. That is
196	<	it is possible to add a (Firebird) user defined character set to a database.
193	>	2.  SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
194	>	If SQLFiltered is set then when a dataset is opened, each line in the
195	>	SQLFilterParams property is assumed to be a SQL condition clause and
196	>	ANDed into the Where clause of the SQL Select statement provided as a
197	>	dataset property. Each such SQL condition thus acts as an additional filter
198	>	on the dataset.
199
200	<	6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
201	<	set supported by Firebird with the API.
200	>	3.  The Filtered property inherited from TDataset is no longer used for SQL (server
201	>	side filters).
202
203	<	7. Add missing isc_info_db_read_only to list of decoded Database Information items
204	<	in FBOutputBlock.pas and update test suite to include this item.
203	>	4. IBLookupComboEditBox: Selection should no longer reset to start of text when
204	>	text matches complete entry.
205
206	<	8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
206	>	5. TIBDataLink: Detail Dataset params not refreshed unless both master and detail
207	>	dataset are active (avoids risk of access violation if master is inactive)
208
209	<	9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
212	<	library or finding it by disk location, the PATH environment variable is now also set to
213	<	include the FIREBIRD directory. This is to ensure that the correct dlls in the
214	<	firebird client library dependencies are loaded.
209	>	6. TIBEvents: Registered property can now be set at design time even if database not open
210
211	<	10. Testsuite: Ensure consistent UTF-8 output on Windows console.
211	>	7. TIBEvents: component now correctly re-initialised after call to UnregisterEvents.
212	>	This should prevent "spillover" of events between sessions.
213
214	<	11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
214	>	8. TIBCustomDataset: GetNextRecord now called when reseting to first record of a unidirectional dataset.
215	>	This should ensure that the internal buffer is set up correctly and avoids
216	>	a duplicate initial row.
217
218	<	12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
218	>	9. TIBStringField: DataSize now given as byte size of string less trailing any zero character.
219	>	That is, the DataSize should be the field size * character set width. The
220	>	value returned by DataSize is now the same as the Dataset buffer size reserved
221	>	for the field.
222
223	<	13. FB30Statement: A check has been added to ensure that all SQL Parameters
223	<	have been given a value (including NULL). Previously, failing to set the
224	<	value of an SQL Parameter could give rise to unpredictable results or
225	<	an SQLDA error.
223	>	10. IBExtract: Tidyup of SQL generation. Avoid unnecessary double quotes.
224
225	<	14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
225	>	11. TIBCustomDataset: Add checks on buffer sizes when copying data from row to field buffer
226	>	and vice-versa. This may result in an exception being raised (correctly) for
227	>	older programs when using dataset fields added to a form and the database has been
228	>	upgraded. For example, computed fields can change from 32-bit to 64-bit integers.
229	>	In such cases, the field needs to be deleted in the IDE fields editor and then
230	>	added back in.
231
232	<	15. FBAttachment: Avoid string reference count error when processing an Ansistring
233	<	parameter in an array of const passed to IAttachment.OpenCursor, etc.
232	>	12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
233	>	false if query contains only white space and not just empty.
234
235	<	16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
236	<	of const passed to IAttachment.OpenCursor, etc.
235	>	12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
236	>	should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
237	>	is cancelled.
238
239	+	13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
240	+	called on a null field.
241
242	<	FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
242	>	14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
243	>	results in an empty dataTC86                Client side Filtered Dataset    1       X
244	>	set.
245
246	<	1. Change syntax to Mode Delphi
246	>	15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
247	>	a cached update is applied and an exception is raised.
248
249	<	2. Change all uses of string type to explicit AnsiString in order to ensure
241	<	compatibility between Delphi and FPC.
249	>	16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
250
251	<	3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
244	<	defined for each interface.
251	>	17. Console Mode Local Database support: backup/restore should now work correctly.
252
253	<	4. Generics syntax variations for Delphi added
253	>	18. Local Database Support: if an upgrade fails, a downgrade is now performed if
254	>	possible and an exception raised.
255
256	<	5. PChar replaced with PByte expect where an actual string is being referenced,
257	<	where PAnsiChar is used instead.
256	>	19. MinimumVersionNo added to Local Database Support. Database will not open if
257	>	below this version no. and upgrade not possible.
258
259	<	6. Review of type definitions in IBExternals to ensure Delphi compatibility
259	>	IBX Change Log  version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
260
261	<	7. Testsuite updated for Delphi
261	>	1.  TIBXDataSet and Generators: Generator Names that are not all upper case or
262	>	not SQL Identifiers are now supported.
263
264	<	FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
264	>	2.  TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
265	>	passed to the Firebird engine for execution.
266
267	<	1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
268	<	large blobs and the FB3 API.
267	>	3.  TIBDataSet: Unidirectional datasets now give an error message if an attempt
268	>	is made to scroll back.
269
270	<	2. Update Event Handling algorithm to avoid looping due to recreation of the
261	<	event block.
270	>	4.  New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
271
272	<	3. Avoid invalid XSQLDA error when the only parameter is updated to null
272	>	5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
273	>	only enclosed in double quotes in SQL dialect 3 and when it needs to be.
274
275	<	4. Array Handling: fix problem with text arrays with character set none. When the
276	<	DB connection has a default character set (e.g. UTF8), an error is raised by
277	<	Firebird if the space allocated is not enough to allow for transliteration, even
278	<	though it is not required for character set none.
275	>	6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
276	>	validated. If no match is found in the list of field names and the database has
277	>	been opened in SQL Dialect 3, then the ListField Name is converted to upper case
278	>	if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
279
280	<	5. IBUtils: List of reserved words brought up-to-date
280	>	7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
281	>	with fpc 3.2.
282
283	<	6. Add ISQL style performance statistics collection to IStatement
283	>	IBX Change Log  version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
284
274	–	7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
275	–	CREATE DATABASE statement.
285
286	<	8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
287	<	an array dimension is not mistaken for a named parameter prefix.
286	>	1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
287	>	and is used to override the default settings in the client side "firebird.conf" This
288	>	includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
289	>	Each line of the string list should be a setting in the same format as "firebird.conf".
290	>	For example "WireCompression = true" in order to request wire compression on the client side.
291
292	<	9. Trim function no longer applied to result of GetAsString for SQL_TEXT
293	<	when Character set is octets. Avoids loss of non printable characters at start of string.
292	>	Note: explicit settings in the client side "firebird.conf" appear to take precedence
293	>	over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
294	>	also require a compatible setting in the server side "firebird.conf". For example
295	>	"WireCompression = true" must also be set in the server's "firebird.conf" for wire
296	>	compression to be used.
297
298	<	10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
299	<	statistics for the last action. Requires use of procedure IStatement.EnableStatistics
300	<	to enable stats gathering.
298	>	Whether or not WireCompression or WireCrypt are in use can be checked using the information
299	>	returned with the Client/Server protocol version. See ibx/examples/dbadmin and
300	>	ibx/examples/dbinfo for examples of how to display this information.
301
302	<	11. API Version information added as constants to IB.pas
302	>	2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
303	>	is a "convenience" property. If set the "WireCompression=true" is added to the
304	>	ConfigOverrides. If unchecked then this setting is removed.
305
306	<	12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
306	>	3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
307	>	not "INT64".
308
309	<	13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
309	>	4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
310	>	These are:
311	>	property TimestampFormat: string;
312	>	property DateFormat: string;
313	>	property TimeFormat: string;
314
315	<	FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
315	>	Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
316	>	DATETIME and TIME. The format strings use the standard FPC date/time format
317	>	characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
318
319	<	1. Initial Release
319	>	If any of the above properties are set to an empty string, then the locale default
320	>	is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
321	>	locale default is extended by appending '.zzz' to include milliseconds.
322
323	+	TIBCSVDataOut by default sets these properties to the empty string, while the other
324	+	two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
325	+
326	+	5. New published property for TIBCSVDataOut:
327	+	property QuoteStrings: boolean (default true)
328	+
329	+	If false then strings are unquoted, otherwise, the QuoteChar property value is
330	+	used to delimit each and every string in the output.
331	+
332	+	6. New published properties for TIBCSVDataOut:
333	+	property FieldSeparator: string;
334	+	property HeaderSeparator: string;
335	+
336	+	Respectively, these provide the separator character(s) used to separate fields
337	+	in data and header rows. Both default to ','.
338	+
339	+	7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
340	+	TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
341	+	property OnFormatTextString;
342	+
343	+	This event handler can be used to process text strings before they are included
344	+	in the output e.g. to replace unprintable characters with alternative strings.
345	+	This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
346	+
347	+	8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
348	+	Uses "FindParam" if in order to find out if a parameter with a given name exists
349	+	and without raising and exception if it does not.
350	+
351	+	9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
352	+	consistency with SQL queries.
353	+
354	+	10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
355	+	When true, SQL statement parameter names are parsed case sensitive. Note for
356	+	TIBDataSet only applies to Select query.
357	+
358	+	11. IBEvents: removing a TIBEvent component from a form should no longer result in
359	+	an IDE exception.
360	+
361	+	12. LocalDBSupport: initial database creation should now work correctly
362	+	when the schema source is an sql file.
363	+
364	+	13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
365	+	when defined, this handler will be called by the internal TIBXScript during
366	+	initial database creation when the schema source is an sql file and may be used
367	+	to provide a visual indication of progress in console mode.
368	+
369	+	14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
370	+	to true while a new local database is being created and its schema populated.
371	+	Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
372	+	when the database is disconnected/connected during the create DB procedure.
373	+
374	+	15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
375	+	are now always ignored and replaced by the user name and password provided as
376	+	the login parameters for the TIBDatabase referenced from the TIBXScript. The
377	+	IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
378	+	completely ignored if this property is true.
379	+
380	+	16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
381	+	to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
382	+	ImageIndex and SelectImageIndex values on AddNode.
383	+
384	+	17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
385	+	read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
386	+	the same database connection.
387	+
388	+	18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
389	+	if provided, this should be an conditional SQL expression suitable for
390	+	including in an SQL Select statement "where" clause. If non-empty and the
391	+	"Filtered" property is true then the SQL expression provided as the value of
392	+	the "Filter" property is "ANDed" with any existing condition statement
393	+	in the SQL statement's "Where" clause.
394	+
395	+	If the "Filter" property is set at run time, the "Filtered" property is true
396	+	and the dataset is already open, then the dataset is closed and re-opened automatically.
397	+
398	+	The "Filter" condition may include IBX style parameters. In which case, their
399	+	value must be set by the dataset's "OnBeforeOpen" event handler.
400	+
401	+	This is a public property for TIBDataSet and TIBQuery query and intended for
402	+	use at run time.
403	+
404	+	Note: The property is a published property of TIBTable. The TIBTable functionality
405	+	is unaffected by this change.
406	+
407	+	IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
408	+
409	+	1. Remove need to check for IsMultiThread by providing access to GUI timers via
410	+	IBGUIInterface. Note: master/detail delay timer does not apply to console
411	+	mode apps.
412	+
413	+	2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
414	+	statement. This avoids problems if "Execute Block" is used as the Query.
415	+
416	+	3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
417	+	internal SQL tokeniser routines.
418	+
419	+	4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
420	+	as a select statement, with or without CTEs.
421	+
422	+	5. IBSQLParser: parser now recognises the "ROWS" clause.
423	+
424	+	6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
425	+	internal SQL tokeniser routines.
426	+
427	+	7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
428	+	being raised for valid set statements processed by a data formatter.
429	+
430	+	8. New published property for TIBDatabase and TIBXServicesConnection. This is
431	+	FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
432	+	the path of the Firebird Library used by the database/services connection.
433	+
434	+	9. New read only public property for TIBDatabase and TIBXServicesConnection. This
435	+	is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
436	+	services connection.
437	+
438	+	10.SQL Property editors now quote parameter names if "Quote identifier" is selected
439	+	or param name is not a valid SQL identifier.
440	+
441	+	11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
442	+	view of whether the text box should be editable when no DataSource is specified.
443	+	TIBLookupComboEditBox has been updated to workaround this problem. As long as
444	+	ReadOnly is false, the text box is editable when no DataSource is specified.
445	+
446	+	12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
447	+	the FBLIB environment variable. If you do not want to permit this then you
448	+	must modify the Register procedure in the design/IBDBReg.pas unit to remove
449	+	this setting.
450	+
451	+	IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
452	+
453	+	1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
454	+	Utf8EscapeControlChars
455	+
456	+	IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
457	+
458	+	IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
459	+	all previous copies of the IBX source code tree before installing this release.
460	+
461	+	The IBX packages used by most users have not changed, with one exception. The
462	+	IBServices unit has been moved to the package iblegacyServices.lpk. To continue
463	+	to use the IBServices unit in your applications, please add the iblegacyServices
464	+	to the list of dependencies. To do this, open the Project Inspector and select
465	+	Add->New Requirement and select "ibLegacyServices" from the list of available
466	+	packages.
467	+
468	+	1. New unit IBXServices. The IBXServices unit is a re-architectured update of
469	+	the IBServices unit providing what is intended to be a clearer and easier to
470	+	use set of IB Services components. See Chapter 10 of the IBX User Guide for
471	+	more information and the guide to "Firebird Service Management Using IBX".
472	+	As indicated above, the legacy services components are still available and
473	+	provided in a separate package. There is no need to update working applications
474	+	using the older versions except for an additional package dependency.
475	+
476	+	2. The IBX packages and source code tree have been re-organised in an attempt to
477	+	finally get rid of the "duplicate ppu" warnings. This re-organisation should
478	+	not affect existing users. Section 2.3 of the IBX User Guide describes the
479	+	new set of IBX packages.
480	+
481	+	3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
482	+	updated to use the new Services API components.
483	+
484	+	4. The iblocal package has been updated to use the new Services API components.
485	+
486	+	5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
487	+	TIBXSecurityService. It had been wrongly classified in the previous version
488	+	as a per database configuration item. It is global to a server and hence
489	+	correctly positioned as part of the Security Package. In the DBAdmin example,
490	+	the setting has moved to the mappings page.
491	+
492	+	6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
493	+	are ignored.
494	+
495	+	7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
496	+	closed before the database is dropped. Before and After Disconnect event handlers
497	+	are also fired.
498	+
499	+	8. TIBTransaction: OnStartTransaction event now fires every time the transaction
500	+	is started and not just the first time.
501	+
502	+	9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
503	+	depenendency with comp type.
504	+
505	+	10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
506	+
507	+	11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
508	+	then this is recognised and not ignored.
509	+
510	+	12. TIBDataSet, TIBQuery, TIBTable: additions:
511	+	function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
512	+	function GetPerfStatistics(var stats: TPerfCounters): boolean;
513	+	property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
514	+
515	+	GetRowsAffected returns the affected row counts from the last insert/update/delete
516	+	if EnableStatistics = true then GetPerfStatistics returns the current stats
517	+	counters for the select query. Note: stats accumulate after each fetch from
518	+	the database. To get total query cost after open, call the "Last" method
519	+	and then GetPerfStatistics.
520	+
521	+	See ibx/examples/consolemode for an example of the use of GetPerfStatistics
522	+
523	+	13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
524	+	in parenthesises.
525	+
526	+	14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
527	+	SQL identifiers are always delimited by double quotes. If false, then they are
528	+	only delimited if the identifier is a reserved word, contains lower case or special
529	+	characters. Set this property to true to retain previous behaviour.
530	+
531	+	15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
532	+	are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
533	+
534	+	16. TIBDataSet, TIBQuery, TIBTable: addition:
535	+	property MasterDetailDelay: integer {defaults to zero}
536	+
537	+	When non-zero and the dataset is a detail table referencing a master table
538	+	through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
539	+	then a synchronisation delay is added (in milliseconds) between the master
540	+	row changing and the detail dataset being re-opened. If the master dataset
541	+	is scrolled before the delay expires then the delay is reset. This can be used
542	+	to avoid performance overheads when scrolling through a large master dataset.
543	+
544	+	Note: uses fptimer and hence requires a thread manager. Under Linux the
545	+	chreads unit must be included in your project. TTimer is not used in order
546	+	to avoid an LCL dependency. Requires FPC 3.0.2 or later.
547	+
548	+	17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
549	+	with Extract Option eoDatabase.
550	+
551	+	18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
552	+	When a deLayoutChanged event is reported on the ListSource dataset, the
553	+	combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
554	+	relationship with the control's datasource (master).
555	+
556	+	19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
557	+
558	+	20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
559	+	stubs. Pedantic fix really, as procedures output in dependency order anyway.
560	+
561	+	21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
562	+	DDL (Firebird 3 and later only).
563	+
564	+	22. TIBLookupComboBox Autocomplete Fixes:
565	+	i. Only appended text is now selected after autocomplete.
566	+	ii. Uppercase keys no longer ignored for autocomplete.
567	+	iii. Retain Prefix case is now honoured correctly.
568	+	iv. When a DataSource is assigned, typing after autocomplete now extends prefix
569	+	before autocomplete performed. i.e. behaviour now the same as when
570	+	no DataSource assigned.
571	+
572	+	23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
573	+	between SQL statements.
574	+
575	+	24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
576	+	ObjectNames are converted to upper case before matching against metadata object
577	+	names, unless the objectname is delimited by double quotes, in which case, the
578	+	double quotes are removed and the remaining string is used (unmodified) to match
579	+	against the metadata object name.
580	+
581	+	If true then the ObjectName is used as is without modification and matched
582	+	against the metadata object name. No attempt is made to remove double quotes.
583	+
584	+	25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
585	+	with eoTrigger, these extract types can be used to select only Database Triggers,
586	+	or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
587	+
588	+	26. TIBXScript: If an exception occurs during the processing of a statement, the
589	+	statement separate character is now reset to the default (';').
590	+
591	+	27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
592	+
593	+	28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
594	+	a commit or reconnect statement and instead activated only when next SQL statement
595	+	is executed.
596	+
597	+	29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
598	+
599	+	30. TIBXScript: case insensitive regex now used when matching statements instead of
600	+	converting statement to upper case.
601	+
602	+	31. TIBExtract: metadata comments now supported. New published property
603	+	IncludeMetaDataComments (default true). If true then metadata comments included
604	+	in extracted DDL. New Extract Object member eoComments. This may be used with
605	+	ExtractObject method to list all metadata comments.
606	+
607	+	32. TIBExtract: ListObjectNames method added.
608	+
609	+	33. Updated Database component editor to support additional connection string
610	+	types.
611	+
612	+	IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
613	+
614	+	NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
615	+	AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
616	+	RELEASE.
617	+
618	+	NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
619	+
620	+	1. IBExtract: Identity columns - add additional check for null column for generator name.
621	+
622	+	2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
623	+	The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
624	+	information). However, this is also a very useful mechanism for returning updated computed by
625	+	column values. Values returned as a result of executing an Insert or Update statement
626	+	replace existing values in the current row for each corresponding column.
627	+
628	+	Previously, if a dataset's select query included read only (computed by) fields then
629	+	an automatic row refresh was performed after an insert or update query had been processed,
630	+	irrespective of the setting of the "ForcedUpdates" property. This has changed such
631	+	that an automatic refresh is no longer performed if an insert or update query contains
632	+	a returning clause that updates one or more fields on the current row. A full row
633	+	refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
634	+	field values and the select query contains read only fields. Use of Insert/update
635	+	returning should be significantly more efficient than executing a refresh query.
636	+
637	+	This behaviour change is intended to be backwards compatible and there should be no need to change
638	+	existing programs, other than to improve performance by using the new capability.
639	+
640	+	3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
641	+	they are called when the dataset row is being deleted, there is no value in
642	+	updating the current record from the query result. Instead, a new event handler
643	+	"OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
644	+	an OnDeleteReturning event handler is provided then it is called with the IResults returned
645	+	by the query. The event handler can then interrogate the query results and
646	+	perform whatever action is necessary. For example to confirm, to the user,
647	+	the deletion of a row with the returned values.
648	+
649	+	4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
650	+	any Computed By or Identity Columns. The IBTables example has been updated to
651	+	illustrate the computation of the employee Full Name on update.
652	+
653	+	5. TIBTable: The GeneratorField property is now published.
654	+
655	+	6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
656	+	When InsertSQL is generated, the Identity columns are not included in the list of values to
657	+	be inserted. A RETURNING clause is added to the insert statement to return the value of
658	+	each Identity column after the insert is executed.
659	+
660	+	7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
661	+	Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
662	+	Insert..Returning clause.
663	+
664	+	8. TIBGenerator: small performance improvement by not preparing query each time
665	+	a new value is generated.
666	+
667	+	9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
668	+
669	+	10. Property editors will now sync table name to a System Table when "Include System
670	+	Tables" is selected and the query is for a System Table.
671	+
672	+	11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
673	+	values are no longer converted to milliseconds from TDateTime and then back again
674	+	to TDateTime (the conversion to milliseconds is the default TDataset approach).
675	+
676	+	12. Property Editors handling of Stored Procedures.
677	+	* Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
678	+	which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
679	+	query).
680	+	* Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
681	+
682	+	13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
683	+	can be used to select a package. If non-empty, the stored procedure name is
684	+	expected to be a stored procedure defined in the specified package and the
685	+	generated SQL will be as required for a stored procedure located in a package.
686	+
687	+	14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
688	+	a "Package Name" drop down box to allow selection of a Firebird 3 Package from
689	+	which a stored procedure can be selected. With no package name selected, non-package
690	+	stored procedures are listed.
691	+
692	+	15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
693	+	for password on reconnect.
694	+
695	+	16. TIBDatabase: use IAttachment for connection default character set id, code page
696	+	and character set name.
697	+
698	+	17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
699	+	DB info lookups"
700	+
701	+	18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
702	+
703	+	19. Add a property Editor for TIBUpdate.RefreshSQL.
704	+
705	+	20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
706	+	parameters. This stops an exception being raised when the field cannot be
707	+	located in the record buffer.
708	+
709	+	21. Property Editors now automatically include System Tables when opened and when the query table
710	+	is a System Table.
711	+
712	+	22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
713	+	This avoids errors due to a stale SQRB or SRB being used for the next query.
714	+
715	+	23. IBServices: Service attach parameters now include "expected_db". This is used to
716	+	add the SPB item isc_spb_expected_db. This names a database using
717	+	an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
718	+	database. examples/services re-written to illustrate use of "expected_db".
719	+
720	+	24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
721	+	This avoids truncated backups when the server returns a timeout (busy) response.
722	+
723	+	25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
724	+
725	+	26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
726	+	databasenames. These are respectively expanded to the local system's temp directory
727	+	(including trailing delimiter) or to a prescribed data directory (including
728	+	trailing delimiter). Under Unix systems the data directory is a hidden directory
729	+	in the user's home directory. The hidden directory name is either the string returned
730	+	from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
731	+	Under Windows, the directory is the same as the Data Directory as decribed
732	+	above but instead prefixed by the User's application data path. These may be
733	+	used to improve application portability for Personal Databases.
734	+
735	+	27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
736	+	this has not worked for a long time and is not useful either. FieldDefs should be
737	+	managed using the Fields Editor as with any other dataset. To access the fields
738	+	editor for a TIBTable component, double click on the component. The fields editor
739	+	is then displayed.
740	+
741	+	28. TIBDatabaseInfo: new properties/function
742	+	* DateDBCreated (returns date/time database created)
743	+	* TransactionCount (returns no. of active transactions)
744	+	* GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
745	+	* PagesFree (Firebird 3 or later)
746	+	* PagesUsed (Firebird 3 or later)
747	+	* Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
748	+	* EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
749	+
750	+	29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
751	+
752	+	30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
753	+
754	+	31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
755	+	the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
756	+
757	+	32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
758	+	in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
759	+	firing during backup and restore.
760	+
761	+	33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
762	+	for verbose output using the new property "StatisticsRequested".
763	+	see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
764	+
765	+	34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
766	+
767	+	35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
768	+	palette. This uses the online validation feature added in Firebird 2.5. The
769	+	services's properties enable inclusion/exclusion of tables and indexes using
770	+	regular expressions. See.
771	+	https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
772	+
773	+	36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
774	+	option on a database.
775	+
776	+	37. TIBCustomService: Assign method implemented to allow copying of service login
777	+	context between service API components. "Detach" method now only detaches
778	+	service when last reference to the service interface detaches. Tidy up of
779	+	code for SetActive and Attach methods including password hiding.
780	+
781	+	38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
782	+	and used to determine the auth method and protocol used for the connection.
783	+
784	+	39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
785	+	a Create Database Statement generated by IBX.
786	+
787	+	40. All IBServices now have an additional published property "PortNo". This may
788	+	be set to a non-standard port number when necessary. If zero then the default
789	+	port number is used.
790	+
791	+	41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
792	+	and not just the mouse.
793	+
794	+	42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
795	+
796	+	43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
797	+	image index and selected image index for each node to be set from a database field.
798	+
799	+	44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
800	+	then database schema includes grants to all users. If not present then the
801	+	only user grants included are those to User PUBLIC.
802	+
803	+	45. TIBTreeView: performance improvement. When expanding include both expanded node
804	+	and child nodes in dataset.
805	+
806	+
807	+	IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
808	+
809	+	1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
810	+	changes.
811	+
812	+	2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
813	+	Bug could result in truncated multi-byte character set values.
814	+
815	+	3. Changes consequential on moving fbintf character set utility functions from
816	+	IFirebirdAPI to IAttachment.
817	+
818	+	4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
819	+
820	+	5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
821	+	results in autocomplete ignoring prefix text.
822	+
823	+	6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
824	+	entering a new name into the text box.
825	+
826	+	7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
827	+	Firebird rather than recomputing it.
828	+
829	+	8. Property Editor positioning tidy up: All IBX Property editors should now be
830	+	screen centre. Previously some were "poDesigned" which may be inappropriate
831	+	for multi monitor desktops.
832	+
833	+	10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
834	+
835	+	11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
836	+	a transaction and always reset the object.
837	+
838	+	12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
839	+
840	+	13. TIBXScript: Allow for override of database filename in Create Database statements.
841	+
842	+	14. IBLocaldb: Support initialisation of the database from an SQL script in addition
843	+	to a gbak format archive.
844	+
845	+	15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
846	+
847	+	16. IBLocaldb: Drop database if error creating an empty database.
848	+
849	+	17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
850	+	unless selected node not in current dataset.
851	+
852	+	18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
853	+	to TIBCustomService, and IBlocalDB code tidy up.
854	+
855	+	19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
856	+	behaviour due to uninitialised variable.
857	+
858	+	20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
859	+	integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
860	+
861	+	21. IBSQL: When Database changed ensure that all resources are freed.
862	+
863	+	22. IBCustomDataset: When database changed ensure that queries an unprepared.
864	+
865	+	23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
866	+	* Line Wrap on SQL Token boundaries (on user command)
867	+	* auto-complete table names in drop down list of table names
868	+	* Double click on tablename or field name adds to SQL text
869	+
870	+	24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
871	+
872	+	25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
873	+	TVariantArray. Seems to avoid memory corruption in Windows (probably a
874	+	workaround for a problem in fpc 3.0.4 win64).
875	+
876	+	26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
877	+
878	+	27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
879	+
880	+	IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
881	+
882	+	1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
883	+	include remote system name.
884	+
885	+	2. TIBExtract: No longer include comment header and COMMIT statement for empty
886	+	tables when data included in output.
887	+
888	+	3. Profiling: IBSQL now has conditional compilation flags to enable query performance
889	+	and timing information to be written to stdout. This may be used to locate
890	+	performance bottlenecks.
891	+
892	+	4. SQLParser: only call "OnChanging" event handler when value is different.
893	+
894	+	5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
895	+
896	+	6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
897	+	that BindFields is called when the query is next activated. Avoids FieldName
898	+	not found error.
899	+
900	+	7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
901	+	purpose and allows the programmer to define any action they want for Update, Insert
902	+	or Delete. This may be complex SQL (similar to a Trigger), application specific
903	+	filtering of updates, or use of statements such as Grant or Revoke instead of
904	+	normal DML. See User Manual for more information.
905	+
906	+	IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
907	+
908	+	1. TIBEvents: Fix uninitialised variable that could result in lost events.
909	+
910	+	2. TIBExtract: Added support for FB3 "USAGE" privilege.
911	+
912	+	3. TIBExtract: data formatted as Charset set "octets" is now output using
913	+	hexadecimal notation.
914	+
915	+	4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
916	+	using a simple XML format.
917	+
918	+	5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
919	+	grants to these objects.
920	+
921	+	6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
922	+	dependency problems restoring complex databases.
923	+
924	+	7. TIBXScript: This component has been restructured to allow for the processing of
925	+	embedded XML in INSERT statements and to support interactive sources in addition
926	+	to non-interactive data sources such as files.
927	+
928	+	8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
929	+
930	+	9. TIBXScript: ISQL compatiable Set statements are now supported:
931	+	SET SQL DIALECT
932	+	SET TERM
933	+	SET AUTODDL
934	+	SET BAIL
935	+	SET ECHO
936	+	SET COUNT
937	+	SET STATS
938	+	SET NAMES <character set>
939	+
940	+	10. IBVersion unit added to hold current IBX Version Number information.
941	+
942	+	11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
943	+	and domain definitions.
944	+
945	+	12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
946	+	fully supported.
947	+
948	+	13. TIBExtract: when a database dump includes data, the generator values are now also set.
949	+
950	+	14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
951	+
952	+	IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
953	+
954	+	See also doc/IBX4LazarusGuide.pdf for important information on
955	+	upgrading to IBX2.
956	+
957	+	1. Size property of TIBStringField is now the width in characters of the field
958	+	and not the byte length. This applies only to multi-byte character sets such
959	+	as UTF8. The original approach aligned with TStringField. However, the TStringField
960	+	code is not recognised as a bug and hence this change to align the behaviour.
961	+	The TStringField change is expected in fpc 3.2.0.
962	+
963	+	2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
964	+	true (default) then Size property value saved in the lfm is ignored. Size is
965	+	always set from the dynamic information read from the database. It is unclear
966	+	why anyone would want to override this and set Size to false.
967	+
968	+	3. ibxscript: should now handle correctly a Case..End statement within a procedure
969	+	block.
970	+
971	+	4. IBDatabase: new property - CreateIfNotExists. If true and database does not
972	+	exist when an attempt is made to connect to it (run time only) then an attempt
973	+	is made to create the database.
974	+
975	+	5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
976	+	has been successfully created as a result of a call to CreateDatabase or when
977	+	creating a database after it was found not to exist.
978	+
979	+	6.  DBControlGrid: a race condition could result in the wrong row image being
980	+	written to the cache. This has been avoided by a trip round the message
981	+	loop before rendering the row image.
982	+
983	+	7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
984	+	a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
985	+	known to risk corrupt rendering of row images when the control is first
986	+	displayed. If necessary use "Application.QueueAsyncCall" to delay opening
987	+	of the dataset (see DBControlGrid examples) until the Form's Window has been created.
988	+
989	+	8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
990	+	a TDateEdit control located on an editor panel.
991	+
992	+	9.  TIBExtract: brought up-to-date plus many bug fixes.
993	+
994	+	10. DBControlGrid: Removed memory leak when updating rows.
995	+
996	+	11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
997	+
998	+	IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
999	+
1000	+	1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
1001	+	when target codepage is CP_NONE. This is a workaround for
1002	+	http://bugs.freepascal.org/view.php?id=30622.
1003	+
1004	+	2. DBLog option removed from TIBStatisticalService - not supported by server
1005	+	since Firebird 1.5.
1006	+
1007	+	3. ibxscript: An error is no longer generated for "on commit preserve rows" or
1008	+	similar.
1009	+
1010	+	4. IBCodePage: updated mapping between codepages and character id.
1011	+
1012	+	5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
1013	+	Firebird. Character sets with a char width of two are not UTF16.
1014	+
1015	+	6. Strings received from the database are now always transliterated into UTF8
1016	+	regardless of the database character set or connection character set. This
1017	+	is for compatibility with the LCL.
1018	+
1019	+	IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
1020	+
1021	+	1. IBBlob: Defer reading of blob until read method called. This avoids having to
1022	+	read in an entire blob just to get the size of the blob. General performance
1023	+	improvement when opening datasets containing blobs.
1024	+
1025	+	2. Clearing a  Blob now sets the corresponding field's modified flag.
1026	+
1027	+	3. IBLookupCombo: When not performing auto-complete, original query sort order
1028	+	is now used.
1029	+
1030	+	4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
1031	+	determined.
1032	+
1033	+	5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
1034	+
1035	+	6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
1036	+	lazarus 1.6.0
1037	+
1038	+	7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
1039	+	compilation error.
1040	+
1041	+	IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
1042	+
1043	+	1. No character set specified for connection: when a text blob is retrieved, the
1044	+	character set is determined by looking up the native character set using then
1045	+	Firebird API. Otherwise a text mode blob is assumed to have the same character
1046	+	set as the connection.
1047	+
1048	+	2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
1049	+	for Login Dialog returing a change to the database path.
1050	+
1051	+	3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
1052	+	to be changed from that given in the TIBDatabase/TIBServer component and for the
1053	+	entered value to be saved on a project specific basis (design time only).
1054	+
1055	+	4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
1056	+	column fieldname. If they are the same then it is acts as a look up for the KeyValue
1057	+	Otherwise, it sets the column text to the selected ListField Value.
1058	+
1059	+	5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
1060	+	column width.
1061	+
1062	+	6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
1063	+	and a case insensitive search is requested.
1064	+
1065	+	7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
1066	+	or column ListSource.
1067	+
1068	+	8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
1069	+	unprepare) when closing and the text has not changed.
1070	+
1071	+	9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
1072	+	Less likely to cause a cursor re-use error on Windows.
1073	+
1074	+	10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
1075	+	Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
1076	+
1077	+	11. TIBTreeView: Guard against nil destination on record changed
1078	+
1079	+	12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
1080	+	string type with the code page set to reflect the returned field encoding after
1081	+	Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
1082	+	earlier versions.
1083	+
1084	+	13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
1085	+	will now result in transliteration to the code page specified for the Firebird driver
1086	+	if the assigned string has a different code page. FPC 3.0.0 onwards only.
1087	+
1088	+	14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
1089	+	is ignored and the lc_ctype value, when the database is opened, is set to align with
1090	+	the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
1091	+	platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
1092	+	3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
1093	+	the GETACP is used to determine the Windows code page.
1094	+
1095	+	15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
1096	+	name used as the lc_ctype when the database was opened. Only valid while the
1097	+	Database is connected.
1098	+
1099	+	16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
1100	+	id that corresponds to the DefaultCharSetName.
1101	+
1102	+	IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
1103	+
1104	+	1. Unix: If Firebird Embedded Server shared object is loaded and a local database
1105	+	path is given and database attach fails due to access permission issues on the
1106	+	temp directory or security database, then the attach is retried with "localhost:"
1107	+	prefixing the databasename. This should avoid problems when the database has to
1108	+	be accessed by a local (e.g. classic) server and libfbembed is used.
1109	+
1110	+	2. Windows: revised search order for Firebird DLL:
1111	+	i.   The Firebird Embedded Server in the application Directory.
1112	+	ii.  If the FIREBIRD environment variable is set then the directory this
1113	+	points to is searched for the FB Client DLL and then then underlying
1114	+	"bin" directory.
1115	+	iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
1116	+	is used to locate the Firebird installation directory and the underlying
1117	+	"bin" directory is searched for the FB Client DLL.
1118	+	iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
1119	+	are searched for the FB Client DLL.
1120	+	v.   The PATH Environment variable is used to search for the FB Client DLL.
1121	+	vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
1122	+
1123	+	3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
1124	+	See doc/readme.scriptengine and example applications.
1125	+
1126	+	4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
1127	+	simplify the use of the embedded firebird server on both Linux and Windows platforms.
1128	+	See dpc/readme.localdatabase and example applications.
1129	+
1130	+	5. IBDynamicGrid: Reordering on column header click should now also work for
1131	+	dynamic columns.
1132	+
1133	+	6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
1134	+	between incrementing/decrementing the lock count and signalling the event.
1135	+
1136	+	IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
1137	+
1138	+	1.3.2 was never formally released and only made available as beta copies.
1139	+
1140	+	1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
1141	+
1142	+	2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
1143	+
1144	+	3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
1145	+
1146	+	4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
1147	+	i.e. when it is a calculated field
1148	+
1149	+	5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
1150	+	This problem was due to a race condition between recalculating row heights and
1151	+	determining which row was selected by the mouse click. The row height calculation
1152	+	is now deferred by an extra trip round the message loop allowing the row to
1153	+	be always calculated on the current grid layout rather than risking it being
1154	+	calculated on the grid layout after the expanded row has been shrunk.
1155	+
1156	+	6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
1157	+	Windows.
1158	+
1159	+	7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
1160	+	These properties allow the (Firebird) character set name for the field and the max number of bytes per character
1161	+	to be determined at runtime. See doc/readme.charactersets.html.
1162	+
1163	+	8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
1164	+	TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
1165	+
1166	+	9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
1167	+	TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
1168	+	1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
1169	+
1170	+	Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
1171	+	from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
1172	+	implies no truncation.
1173	+
1174	+	10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
1175	+
1176	+	11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
1177	+	(avoids "Not in Edit Mode" error).
1178	+
1179	+	12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
1180	+
1181	+	13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
1182	+	DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
1183	+
1184	+	14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
1185	+
1186	+	15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
1187	+
1188	+	16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
1189	+
1190	+	17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
1191	+
1192	+	IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
1193	+
1194	+	1.   OnCloseUp Event Handler added to TDBLookupProperties
1195	+
1196	+	2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
1197	+	problem with row size when exception is called.
1198	+
1199	+	3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
1200	+
1201	+	4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
1202	+	in a TCustomComboBox and ignores return key if in a TCustomMemo
1203	+
1204	+	5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
1205	+	keyed in i.e. when autocomplete not performed
1206	+
1207	+	6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
1208	+	console mode applications with all LCL required functions (builtin dialogs and
1209	+	cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
1210	+	not included in your project, IBX should compile and link with a console mode program.
1211	+	See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
1212	+	console mode application or the IDE will automatically assume that your
1213	+	application is GUI based. Instead, you should include the ibexpressconsolemode package.
1214	+
1215	+	IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
1216	+	to use the built in dialogs and cursor management. IBDialogs is
1217	+	included by default if "ibexpress" is in your project source's "uses" clause.
1218	+	This should be the case for all projects created through the IDE. This is why
1219	+	you do not want to add the ibexpress package to console mode applications. The
1220	+	ibexpressconsolemode package has been created to allow console mode programs
1221	+	to avoid adding LCL dependencies when using IBX, while still having the
1222	+	unit search paths set up correctly.
1223	+
1224	+	Existing users should check to ensure that the "ibexpress" unit is included in
1225	+	each project's source file (*.lpr).
1226	+
1227	+	You may find that in order for the IDE to recognise that ibexpressconsolemode
1228	+	exists, you have to first open the package in the IDE and then close it. This
1229	+	adds it to the most recently accessed packages list. To make it permanently
1230	+	available, add the package name to lazarus' staticpackages.inc file.
1231	+
1232	+	Thanks to Julio Jiménez for suggesting support of console mode.
1233	+
1234	+	7.   SQL Parser can now accept quoted strings that include new lines
1235	+
1236	+	8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
1237	+	of text on start of edit. This is particularly useful when tabbing to a
1238	+	column and then inserting text.
1239	+
1240	+	9.   New Examples provided for IB Services and ISQLMonitor.
1241	+
1242	+	10. Fix error when writing to blob streams that recorded only the last buffer
1243	+	write in the blob stream. In most cases, this did not cause a problem as the
1244	+	IB Blob Stream is written in a single write. However, with the TDBImage, write
1245	+	of a graphic type prefix was lost which caused a problem when the image could
1246	+	not be automatically recognised.
1247	+
1248	+	11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
1249	+	already open" errors due to random numbers used for the cursor name being identical.
1250	+
1251	+	12. IBTable: corrected error that could result in an "Index out of bounds" error
1252	+	when opening the table and the Primary Key is the last or only column in the
1253	+	table. Thanks to Rick Hoover for the fix.
1254	+
1255	+	13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
1256	+	of "UTF-8", and update list of available database character sets. Existing
1257	+	users should check the current lc_ctype setting in their applications.
1258	+
1259	+	IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
1260	+
1261	+	1.  Firebird Services: avoid List Index error when opening a service with an
1262	+	empty Params property.
1263	+
1264	+	2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
1265	+	Link now set up in Loaded method - avoids occasional failure to apply
1266	+	SQL markup on initial open.
1267	+
1268	+	3.  "Employees" example performance improvements when scrolling.
1269	+
1270	+	4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
1271	+	TFrame. Force recaching of selected frame to avoid GTK race (results in a
1272	+	random image cached).
1273	+
1274	+	5.  DBControlGrid: Should now react to changes in panel height at run time.
1275	+
1276	+	6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
1277	+	even when further rows exist.
1278	+
1279	+	7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
1280	+	always be derived from panel height and setting this property can cause confusion.
1281	+	Note for existing projects: to avoid a missing property error at run time,
1282	+	each form using the DBControlGrid must be opened, updated and saved in the IDE
1283	+	in order to remove the property value from the lfm.
1284	+
1285	+
1286	+	IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
1287	+
1288	+	1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
1289	+	call Prepare before setting parameter values.
1290	+
1291	+	2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
1292	+
1293	+	3.  Code tidyup and more robust handling of dsql information result vector.
1294	+
1295	+	4.  Support for centralised handling of transaction status changes. TIBTransaction
1296	+	has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
1297	+	and "AfterExecQuery". The first three are called after the same event is called
1298	+	for an IBCustomDataSet descendent using the Transaction. The fourth is called
1299	+	after a call to TIBSQL.ExecQuery, again using this transaction. These new events
1300	+	enable monitoring of transaction status changes for a given transaction to be
1301	+	handled in a single place. For example, when a change to the dataset occurs
1302	+	an indicator can be set that shows the user that in order to save changes,
1303	+	the transaction should be committed.  Rather than doing this per dataset, this
1304	+	can now be done per transaction.
1305	+
1306	+	5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
1307	+	the dataset is scrolled. However, any changes to the current row are, by default,
1308	+	discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
1309	+	have a new property "DataSetCloseAction" that adds automatic posting of changes
1310	+	on dataset close. If this property is set to dcDiscardChanges (default) then the
1311	+	behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
1312	+	then IBX will attempt to post any unsaved changes before the dataset is closed
1313	+	(and after the BeforeClose event handler is called). The exception is when the
1314	+	dataset is being closed as a result of a transaction rollback. In this case,
1315	+	no action is taken and any unsaved  changes are discarded. This avoids both
1316	+	unnecessary overhead and the risk that a validation error may occur in the Post
1317	+	raising an exception and thereby preventing a rollback.
1318	+
1319	+	6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
1320	+	In earlier versions, the Display Width was set to the maximum byte width rather than the character
1321	+	width. Display Widths are now corrected by dividing by the max byte width per character.
1322	+	For UTF8 character sets, the byte width is four and hence the Display Width will be
1323	+	the byte width divided by 4. The byte width of each character set is determined
1324	+	dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
1325	+	system table. (see also http://bugs.freepascal.org/view.php?id=27766).
1326	+
1327	+	7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
1328	+
1329	+	8.  IBLookupComboEditBox: List should now always be restored to full list when the
1330	+	control loses focus. Default Key press default interval reduced to 200ms.
1331	+
1332	+	9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
1333	+	when dataset rows are less than visible rows.
1334	+
1335	+	10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
1336	+	does not exist or DataSet is empty. More responsive on dataset open. New event
1337	+	OnRestorePosition. Column sort disabled if no header row.
1338	+
1339	+	11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
1340	+	while dataset state is dsInsert. Avoids posting errors.
1341	+
1342	+	12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
1343	+	avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
1344	+
1345	+	13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
1346	+
1347	+	14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
1348	+	to solve a specific problem. That is when the dataset cursor is moved (e.g. by
1349	+	a grid mouse click and the current row is being edited or inserted. In this case, TDataset
1350	+	always "posts" the current record regardless or whether or not it may be more appropriate
1351	+	to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
1352	+	"MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
1353	+	as the first action of the "Post" method and allows the handler to convert the Post
1354	+	into a Cancel if that is the appropriate action on moving to a different row. This is
1355	+	achieved by returning with "CancelPost" argument set to true. Note that an exception could be
1356	+	raised here, but it may still be more appropriate to validate a post and signal
1357	+	a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
1358	+
1359	+	15. On Unix derived systems, the Firebird library name can now be given as a colon
1360	+	separated list. Each library name on the list is tried in turn, in left to right
1361	+	order with the first found being used as the firebird library. By default, on Linux,
1362	+	the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
1363	+	overidden by the FBLIB environment variable or the OnGetLibraryName function.
1364	+
1365	+	Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
1366	+	then it will still attempt to access the database via the Firebird Server and will
1367	+	require a username and password. If only the pathname is given, then the username
1368	+	and password should be omitted and the unix file permissions are used to grant
1369	+	access.
1370	+
1371	+	IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
1372	+
1373	+	1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
1374	+	rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
1375	+	that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
1376	+	corresponds to a row of the linked DataSource. Any data aware control on the
1377	+	replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
1378	+
1379	+	2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
1380	+	When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
1381	+	takes place during database access. This may be useful when there are performance issues with
1382	+	the change of cursor. Setting the property to false suppresses the change of cursor.
1383	+
1384	+	3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
1385	+	and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
1386	+	Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
1387	+	making all changes permanent immediately rather than when the transaction is explicitly
1388	+	committed.
1389	+
1390	+	4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1391	+	using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1392	+
1393	+	IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1394	+
1395	+	Development version only.
1396	+
1397	+	IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1398	+
1399	+	1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1400	+	This is typically used during an "OnBeforeOpen" event handler to manipulate the
1401	+	"Where" and "Having" clauses to implement user specified filters of arbitrary
1402	+	complexity.
1403	+
1404	+	2. A new Component Palette entry "Firebird Data Controls" is now available. This has
1405	+	three new data aware controls dependent on IBX and which make use of the SQL Parser.
1406	+	These are:
1407	+
1408	+	- TIBLookupComboEditBox
1409	+	- TIBDynamicGrid
1410	+	- TIBTreeview
1411	+
1412	+	TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1413	+	of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1414	+	to revise the available list and restrict it to items that are prefixed by the
1415	+	typed text (either case sensitive or case insensitive). Autoinsert allows a
1416	+	newly typed entry to be added to the list dataset and included in the available
1417	+	list items.
1418	+
1419	+	TIBDynamicGrid is a TDBGrid descendent that provides for:
1420	+	- automatic resizing of selected columns to fill the available row length
1421	+	- automatic positioning and sizing of a "totals" control, typically at the
1422	+	column footer, on a per column basis.
1423	+	- DataSet resorting on header row click, sorting the dataset by the selected column.
1424	+	A second click on the same header cell reversed the sort order.
1425	+	- Support for a "Panel Editor". That is on clicking the indicator column, the row
1426	+	is automatically expanded and a panel superimposed on it. The panel can have any
1427	+	number of child controls, typically data aware controls with the same datasource
1428	+	as the grid allowing for editing of additional fields and more complex editors.
1429	+	- Reselection of the same row following resorting.
1430	+	- A new cell editor that provides the same functionality as TIBLookupComboEditBox.
1431	+	Its properties are specified on a per column basis and allows for one or more
1432	+	columns to have their values selected from a list provided by a dataset.
1433	+	Autocomplete and autoinsert are also available. The existing picklist editor
1434	+	is unaffected by the extension.
1435	+
1436	+	TIBTreeView is a data aware TCustomTreeView.
1437	+
1438	+	3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
1439	+	zero scale will no longer return an error. An Int64 will be returned instead.
1440	+
1441	+	4. TIBTransaction now has events for Before and After Transaction End and a new function
1442	+	"GetEndAction" allowing the EndAction to be accessed by these event handlers.
1443	+
1444	+	5. TIBQuery can now handle correctly queries which contain the same keyword parameter
1445	+	repeated multiple times.
1446	+
1447	+	6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
1448	+	check used to get in the way of using Stored Procedures, and "Update or Insert"
1449	+	statements.
1450	+
1451	+	7. Insert, Modify and Delete property Editors now support Query Generation from
1452	+	Stored Procedures.
1453	+
1454	+	8. Three new examples illustrate the use of the new IB Controls
1455	+
1456	+
1457	+	IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1458	+
1459	+	1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1460	+	setting performance. See "readme.field+param.names in the doc folder.(Thanks to
1461	+	Gabor Boros for reporting this problem and for testing the improvements).
1462	+
1463	+	2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
1464	+	See readme.field+param.names in the doc folder.
1465	+
1466	+	3. IBX SQL Editors will now automatically add double quotes around column names when the database
1467	+	dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
1468	+
1469	+	4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
1470	+
1471	+	5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
1472	+	actions.
1473	+
1474	+	6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
1475	+	thanks to Yuriy Kopnin for pointing this out).
1476	+
1477	+	7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
1478	+
1479	+	8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
1480	+	for both fields and parameter setting.
1481	+
1482	+	9. Changes to the Select SQL in an IBCustomDataset descendent should now be
1483	+	visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
1484	+
1485	+	10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
1486	+	when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
1487	+
1488	+	11. TIBTable now has a property editor for "MasterFields"
1489	+
1490	+	12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
1491	+	GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
1492	+
1493	+	13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
1494	+	of settings is unrecognised. Selecting this radio button has no effect on the settings.
1495	+
1496	+
1497	+	IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
1498	+
1499	+	1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
1500	+
1501	+	IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
1502	+
1503	+	1. In a TIBCustomDataset descendent, a generator now only sets the value when
1504	+	it is null. This allows for alternative user defined setting of the generator
1505	+
1506	+	Many thanks to Julio Jiménez for this fix
1507	+
1508	+	2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
1509	+	and suggests that the user may have forgotten to install it.
1510	+
1511	+	IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
1512	+
1513	+	1. Conditional compilation used to limit registration of TIntegerField to
1514	+	Lazarus versions less than 1.1
1515	+
1516	+	2. When a database connection is created, character set is now by default set
1517	+	to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
1518	+	1250 to 1254.
1519	+
1520	+
1521	+	IBX Change Log  version     (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
1522	+
1523	+	1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
1524	+
1525	+
1526	+	IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
1527	+
1528	+	1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
1529	+	Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
1530	+
1531	+	2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
1532	+	package is changed to do this (which it should do).
1533	+
1534	+	IBX Change Log  version (1.0-0)  Sat, 28 Apr 2012 16:43:00 +0100
1535	+
1536	+	1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
1537	+
1538	+	2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
1539	+
1540	+	3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
1541	+
1542	+	4. Property editors should now correctly resize.
1543	+
1544	+	5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
1545	+	(restored original functionality)
1546	+
1547	+	6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
1548	+	library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.

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Revision 407 by tony, Tue Dec 6 23:18:32 2022 UTC

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