ViewVC Help

View File | Revision Log | Show Annotations | Download File | View Changeset | Root Listing

root/public/ibx/trunk/changelog

Comparing ibx/trunk/changelog (file contents):
Revision 149 by tony, Mon Feb 26 16:16:33 2018 UTC vs.
Revision 303 by tony, Fri Jul 17 22:29:57 2020 UTC

#	Line 1 | Line 1
1	<	IBX Change Log  version                                                      (2.2-0) Mon, 26 Feb 2018 11:49:23 +0000
1	>	FBINTF Change Log  version          (1.1-6 Build 12214) Fri, 17 Jul 2020 23:10:11 +0100
2
3	<	1. IBExtract: Identity columns - add additional check for null column for generator name.
3	>	1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
4	>	with a Firebrid 3 client library.
5
6	<	2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
7	<	The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
8	<	information). However, this is also a very useful mechanism for returning updated computed by
9	<	column values. Values returned as a result of executing an Insert or Update statement
10	<	replace existing values in the current row for each corresponding column.
6	>	2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
7	>	If a client library path is not explicitly provided and the FIREBIRD environment
8	>	variable is set then the directory given by this variable and any 'lib' subdirectory
9	>	are searched for the Firebird client library. Only if none is found, is the default
10	>	client library used.
11
12	<	Previously, if a dataset's select query included read only (computed by) fields then
12	<	an automatic row refresh was performed after an insert or update query had been processed,
13	<	irrespective of the setting of the "ForcedUpdates" property. This has changed such
14	<	that an automatic refresh is no longer performed if an insert or update query contains
15	<	a returning clause that updates one or more fields on the current row. A full row
16	<	refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17	<	field values and the select query contains read only fields. Use of Insert/update
18	<	returning should be significantly more efficient than executing a refresh query.
12	>	3.  IUtil.FormatStatus now used to format error messages when using new API
13
14	<	This behaviour change is intended to be backwards compatible and there should be no need to change
21	<	existing programs, other than to improve performance by using the new capability.
14	>	4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
15
16	<	3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
17	<	they are called when the dataset row is being deleted, there is no value in
18	<	updating the current record from the query result. Instead, a new event handler
19	<	"OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
20	<	an OnDeleteReturning event handler is provided then it is called with the IResults returned
21	<	by the query. The event handler can then interrogate the query results and
29	<	perform whatever action is necessary. For example to confirm, to the user,
30	<	the deletion of a row with the returned values.
16	>	5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
17	>	returned using GetAsString and the string codepage is UTF8, the string is truncated so
18	>	that the byte length corresponds to the number of characters specified for the column.
19	>	SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
20	>	correct behaviour but may affect some implementations that relied upon automatic
21	>	trimming of trailing white space.
22
23	<	4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
24	<	any Computed By or Identity Columns. The IBTables example has been updated to
25	<	illustrate the computation of the employee Full Name on update.
23	>	6.  New IFirebirdAPI Calls:
24	>	function GetClientMajor: integer;
25	>	function GetClientMinor: integer;
26
36	–	5. TIBTable: The GeneratorField property is now published.
27
28	<	6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
39	<	When InsertSQL is generated, the Identity columns are not included in the list of values to
40	<	be inserted. A RETURNING clause is added to the insert statement to return the value of
41	<	each Identity column after the insert is executed.
28	>	FBINTF Change Log  version          (1.1-5 Build 12044) Fri, 17 Apr 2020 12:30:01 +0100
29
30	<	7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
31	<	Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
45	<	Insert..Returning clause.
30	>	1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
31	>	case sensitive
32
33	<	8. TIBGenerator: small performance improvement by not preparing query each time
48	<	a new value is generated.
33	>	2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
34
35	<	9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
35	>	3. New API Calls:
36	>	IColumnMetaData.GetStatement
37	>	IColumnMetaData.GetTransaction
38	>	ISQLData.GetStrLength
39	>	IResults.GetStatement
40	>	IAttachment.OpenBlob (using Blob metadata)
41	>	IAttachment.OpenArray (using array metadata)
42
43	<	10. Property editors will now sync table name to a System Table when "Include System
53	<	Tables" is selected and the query is for a System Table.
43	>	4. FBMessages: removal of unused messages
44
45	<	11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
56	<	values are no longer converted to milliseconds from TDateTime and then back again
57	<	to TDateTime (the conversion to milliseconds is the default TDataset approach).
45	>	5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
46
47	<	12. Property Editors handling of Stored Procedures.
60	<	* Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
61	<	which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
62	<	query).
63	<	* Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
47	>	6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
48
49	<	13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
66	<	can be used to select a package. If non-empty, the stored procedure name is
67	<	expected to be a stored procedure defined in the specified package and the
68	<	generated SQL will be as required for a stored procedure located in a package.
49	>	FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
50
51	<	14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
52	<	a "Package Name" drop down box to allow selection of a Firebird 3 Package from
72	<	which a stored procedure can be selected. With no package name selected, non-package
73	<	stored procedures are listed.
51	>	1. Fix a problem with the SQL parameter parser that failed to recognise parameters
52	>	where the second character of the parameter name is a numeric.
53
54	<	15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
55	<	for password on reconnect.
54	>	2. New method for IAttachment: procedure getFBVersion(version: TStrings);
55	>	This returns the isc_version connection information as one or more lines.
56	>	This is the same information as returned by isql with the -z option.
57
58	<	16. TIBDatabase: use IAttachment for connection default character set id, code page
59	<	and character set name.
58	>	3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
59	>	is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
60	>	compiler option then the Firebird 3 API is no longer compiled in.
61
62	<	17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
82	<	DB info lookups"
62	>	4. IColumnMetaData: new method.
63
64	<	18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
64	>	TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
65	>	dfDateTime,   {SQL DATETIME}
66	>	dfTime);
67
68	<	19. Add a property Editor for TIBUpdate.RefreshSQL.
68	>	function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
69
70	<	20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
71	<	parameters. This stops an exception being raised when the field cannot be
90	<	located in the record buffer.
70	>	This returns the max. number of characters returned by the "AsString" method
71	>	when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
72
73	<	21. Property Editors now automatically include System Tables when opened and when the query table
74	<	is a System Table.
73	>	5. Additional argument for IAttachment.PrepareWithNamedParameters -
74	>	CaseSensitiveParams: boolean = false
75
76	<	22. IBServices: SQRB and SRB buffers are now reset when service query throws and exception.
77	<	This avoids errors due to a stale SQRB or SRB being used for the next query.
76	>	If this argument is set to true then SQL parameter names are assumed to be case
77	>	sensitive and must be referenced (using ISQLParams.ByName) using the case
78	>	sensitive name.
79
80	<	23. IBServices: Service attach parameters now include "expected_db". This is used to
81	<	add the SPB item isc_spb_expected_db. This names a database using
82	<	an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
83	<	database. examples/services re-written to illustrate use of "expected_db".
80	>	6. Bug fix: when setting a query parameter, it is now possible, when the parameter
81	>	is of type VarChar or Char to set the parameter to a numeric value (e.g. using
82	>	.AsCurrency) and then subsequently to update the value to a non-numeric string
83	>	using .AsString.
84
103	–	24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
104	–	This avoids truncated backups when the server returns a timeout (busy) response.
85
106	–	25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
86
87	<	26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
109	<	databasenames. These are respectively expanded to the local system's temp directory
110	<	(including trailing delimiter) or to a directory a prescribed data directory (including
111	<	trailing delimiter). Under Unix systems the data directory is a hidden directory
112	<	in the user's home directory. The hidden directory name is either the string returned
113	<	from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
114	<	Under Windows, the directory is the same as the Data Directory as decribed
115	<	above but instead prefixed by the User's application data path. These may be
116	<	used to improve application portability.
87	>	FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
88
89	<	27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
119	<	this has not worked for a long time and is not useful either. FieldDefs should be
120	<	managed using the Fields Editor as with any other dataset. To access the fields
121	<	editor for a TIBTable component, double click on the component. The fields editor
122	<	is then displayed.
89	>	1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
90
91	<	28. TIBDatabaseInfo: new properties/function
92	<	* DateDBCreated (returns date/time database created)
126	<	* TransactionCount (returns no. of active transactions)
127	<	* GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
128	<	* PagesFree (Firebird 3 or later)
129	<	* PagesUsed (Firebird 3 or later)
130	<	* Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
131	<	* EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
91	>	2. Restrict IsMultiThread check to Unix only for compatibility with
92	>	https://bugs.freepascal.org/view.php?id=30535
93
94	<	29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
94	>	3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
95	>	named parameters and is intended to avoid problems with (e.g.) Execute Block
96	>	and processing internal parameters as statement parameters.
97
98	<	30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
98	>	4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
99	>	or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
100
101	<	31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
138	<	the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
101	>	5. New function added to IB.pas
102
103	<	32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
141	<	in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
142	<	firing during backup and restore.
103	>	function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
104
105	<	33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
106	<	for verbose output using the new property "StatisticsRequested".
107	<	see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
105	>	This allows a Firebird Library to be loaded from an explicit path. use the
106	>	IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
107	>	the library. It is possible to load Firebird libraries from different locations
108	>	simultaneously, each with a distinct IFirebirdAPI.
109
110	<	34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
110	>	FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
111
112	<	35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
113	<	palette. This uses the online validation feature added in Firebird 2.5. The
152	<	services's properties enable inclusion/exclusion of tables and indexes using
153	<	regular expressions. See.
154	<	https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
112	>	1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
113	>	program compiled with -CR command line switch.
114
115	<	36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
116	<	option on a database.
115	>	2. IServiceManager additions (informational):
116	>	function getProtocol: TProtocol;
117	>	function getPortNo: AnsiString;
118
119	<	37. TIBCustomService: Assign method implemented to allow copying of service login
120	<	context between service API components. "Detach" method now only detaches
121	<	service when last reference to the service interface detaches. Tidy up of
122	<	code for SetActive and Attach methods including password hiding.
119	>	3. IServiceManager improved error handling. Interfaces changed:
120	>	function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
121	>	function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
122	>	function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
123
124	<	38. TIBDatabase: new proterties: AuthenticationMethod and RemoteProtocol. Read only
125	<	and used to determine the auth method and protocol used for the connection.
124	>	4. IAttachment addition (informational)
125	>	function GetSecurityDatabase: AnsiString;
126
127	<	39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
128	<	a Create Database Statement generated by IBX.
127	>	5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
128	>	thus now returns accumulated stats for a select statement from opening a cursor
129	>	up to the last fetch.
130
131	<	40. All IBServices now have an additional published property "PortNo". This may
132	<	be set to a non-standard port number when necessary. If zero then the default
172	<	port number is used.
131	>	6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
132	>	the problem.
133
134	<	41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
135	<	and not just the mouse.
134	>	7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
135	>	replaces deprecated "comp" type.
136
137	<	42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
137	>	10. Testsuite Test10 updated to include thread synchronisation for event reporting.
138
139	<	43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
180	<	image index and selected image index for each node to be set from a database field.
139	>	11. URL Connection Strings: inet4 and inet6 now recognised.
140
141	<	44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
183	<	then database schema includes grants to all users. If not present then the
184	<	only user grants included are those to User PUBLIC.
141	>	12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
142
143	<	45. TIBTreeView: performance improvement. When expanding include both expanded node
187	<	and child nodes in dataset.
143	>	13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
144
145
146	<	IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
146	>	FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
147
148	<	1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
193	<	changes.
148	>	1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
149
150	<	2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
151	<	Bug could result in truncated multi-byte character set values.
150	>	2. IAttachment: add two new methods
151	>	function HasDefaultCharSet: boolean;
152	>	function GetDefaultCharSetID: integer;
153
154	<	3. Changes consequential on moving fbintf character set utility functions from
155	<	IFirebirdAPI to IAttachment.
154	>	These return, respectively, true if a connection default character set was
155	>	specified and the character set id of the connection default character set.
156	>	The DefaultCharSetID is cached when the connection is opened and hence does not
157	>	require a database lookup.
158
159	<	4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
159	>	3. Avoid exception when a text blob is a stored procedure parameter.
160
161	<	5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
204	<	results in autocomplete ignoring prefix text.
161	>	4. Update test suite to include a test for a stored proc returning a text blob.
162
163	<	6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
164	<	entering a new name into the text box.
163	>	5. IAttachment: add
164	>	function GetRemoteProtocol: AnsiString;
165	>	function GetODSMajorVersion: integer;
166	>	function GetODSMinorVersion: integer;
167	>	function GetAuthenticationMethod: AnsiString;
168
169	<	7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
170	<	Firebird rather than recomputing it.
169	>	These results are cached when the connection is opened and hence do not
170	>	require a database lookup.
171
172	<	8. Property Editor positioning tidy up: All IBX Property editors should now be
173	<	screen centre. Previously some were "poDesigned" which may be inappropriate
214	<	for multi monitor desktops.
172	>	6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
173	>	connect string used to create/connect to the database.
174
175	<	10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
175	>	7. IAttachment: Create Database using SQL statement. The username and password
176	>	are now extracted and used to populate a DPB made available via IAttachment.getDPB.
177	>	It is now possible to use IAttachment disconnect/connect to reconnect to
178	>	a database for which the initial connection was established by a create
179	>	database sql statement. Available in FPC only.
180
181	<	11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
219	<	a transaction and always reset the object.
181	>	8. Update Test 1 to test 5, 6 and 7 above.
182
183	<	12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
183	>	9. IBUtils code tidy up.
184
185	<	13. TIBXScript: Allow for override of database filename in Create Database statements.
185	>	10. Parameter Block interfaces "find" method. As documented, this should have
186	>	returned a nil interface when the item could not be found. Instead, an empty
187	>	interface item was returned. "Find" now works as documented and will return
188	>	a nil interface if the item cannot be found.
189
190	<	14. IBLocaldb: Support initialisation of the database from an SQL script in addition
226	<	to a gbak format archive.
190	>	11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
191
192	<	15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
192	>	12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
193	>	requests with additional parameters. This is to enable support for fb_info_page_contents
194	>	(return of page contents). Response to fb_info_page_contents returned as
195	>	a string with code page CP_NONE.
196
197	<	16. IBLocaldb: Drop database if error creating an empty database.
197	>	13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
198	>	test suite updated.
199
200	<	17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
201	<	unless selected node not in current dataset.
200	>	14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
201	>	a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
202
203	<	18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
204	<	to TIBCustomService, and IBlocalDB code tidy up.
203	>	15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
204	>	An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
205	>	default connection port to be specified.
206
207	<	19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
239	<	behaviour due to uninitialised variable.
207	>	FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
208
209	<	20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
210	<	integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
209	>	1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
210	>	Scale is no longer ignored.
211
212	<	21. IBSQL: When Database changed ensure that all resources are freed.
212	>	2. Fix issues with setting SQL Param values using SetAsString with Date values
213	>	not in locale format but which are recognised by Firebird. Date values that
214	>	cannot be converted to a string using Pascal library are now passed through
215	>	to Firebird as Text Strings.
216
217	<	22. IBCustomDataset: When database changed ensure that queries an unprepared.
217	>	3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
218	>	UTF8 and not UNICODE_FSS.
219
220	<	23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
221	<	* Line Wrap on SQL Token boundaries (on user command)
222	<	* auto-complete table names in drop down list of table names
223	<	* Double click on tablename or field name adds to SQL text
220	>	4. Charset ID problem. When using Firebird 3, with no default database character set
221	>	and a column has a non-default collation specified, an incorrect character set
222	>	id was being reported that could result in a 'division by zero' error when
223	>	used by IBX. This has now been fixed.
224
225	<	24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
225	>	5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
226	>	CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
227	>	the character sets supported can be updated on a per database basis. That is
228	>	it is possible to add a (Firebird) user defined character set to a database.
229
230	<	25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
231	<	TVariantArray. Seems to avoid memory corruption in Windows (probably a
257	<	workaround for a problem in fpc 3.0.4 win64).
230	>	6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
231	>	set supported by Firebird with the API.
232
233	<	26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
233	>	7. Add missing isc_info_db_read_only to list of decoded Database Information items
234	>	in FBOutputBlock.pas and update test suite to include this item.
235
236	<	27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
236	>	8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
237
238	<	IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
238	>	9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
239	>	library or finding it by disk location, the PATH environment variable is now also set to
240	>	include the FIREBIRD directory. This is to ensure that the correct dlls in the
241	>	firebird client library dependencies are loaded.
242
243	<	1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
266	<	include remote system name.
243	>	10. Testsuite: Ensure consistent UTF-8 output on Windows console.
244
245	<	2. TIBExtract: No longer include comment header and COMMIT statement for empty
269	<	tables when data included in output.
245	>	11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
246
247	<	3. Profiling: IBSQL now has conditional compilation flags to enable query performance
272	<	and timing information to be written to stdout. This may be used to locate
273	<	performance bottlenecks.
247	>	12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
248
249	<	4. SQLParser: only call "OnChanging" event handler when value is different.
249	>	13. FB30Statement: A check has been added to ensure that all SQL Parameters
250	>	have been given a value (including NULL). Previously, failing to set the
251	>	value of an SQL Parameter could give rise to unpredictable results or
252	>	an SQLDA error.
253
254	<	5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
254	>	14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
255
256	<	6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
257	<	that BindFields is called when the query is next activated. Avoids FieldName
281	<	not found error.
256	>	15. FBAttachment: Avoid string reference count error when processing an Ansistring
257	>	parameter in an array of const passed to IAttachment.OpenCursor, etc.
258
259	<	7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
260	<	purpose and allows the programmer to define any action they want for Update, Insert
285	<	or Delete. This may be complex SQL (similar to a Trigger), application specific
286	<	filtering of updates, or use of statements such as Grant or Revoke instead of
287	<	normal DML. See User Manual for more information.
259	>	16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
260	>	of const passed to IAttachment.OpenCursor, etc.
261
289	–	IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
262
263	<	1. TIBEvents: Fix uninitialised variable that could result in lost events.
263	>	FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
264
265	<	2. TIBExtract: Added support for FB3 "USAGE" privilege.
265	>	1. Change syntax to Mode Delphi
266
267	<	3. TIBExtract: data formatted as Charset set "octets" is now output using
268	<	hexadecimal notation.
267	>	2. Change all uses of string type to explicit AnsiString in order to ensure
268	>	compatibility between Delphi and FPC.
269
270	<	4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
271	<	using a simple XML format.
270	>	3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
271	>	defined for each interface.
272
273	<	5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
302	<	grants to these objects.
273	>	4. Generics syntax variations for Delphi added
274
275	<	6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
276	<	dependency problems restoring complex databases.
275	>	5. PChar replaced with PByte expect where an actual string is being referenced,
276	>	where PAnsiChar is used instead.
277
278	<	7. TIBXScript: This component has been restructured to allow for the processing of
308	<	embedded XML in INSERT statements and to support interactive sources in addition
309	<	to non-interactive data sources such as files.
278	>	6. Review of type definitions in IBExternals to ensure Delphi compatibility
279
280	<	8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
280	>	7. Testsuite updated for Delphi
281
282	<	9. TIBXScript: ISQL compatiable Set statements are now supported:
314	<	SET SQL DIALECT
315	<	SET TERM
316	<	SET AUTODDL
317	<	SET BAIL
318	<	SET ECHO
319	<	SET COUNT
320	<	SET STATS
321	<	SET NAMES <character set>
282	>	FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
283
284	<	10. IBVersion unit added to hold current IBX Version Number information.
284	>	1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
285	>	large blobs and the FB3 API.
286
287	<	11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
288	<	and domain definitions.
287	>	2. Update Event Handling algorithm to avoid looping due to recreation of the
288	>	event block.
289
290	<	12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
329	<	fully supported.
290	>	3. Avoid invalid XSQLDA error when the only parameter is updated to null
291
292	<	13. TIBExtract: when a database dump includes data, the generator values are now also set.
292	>	4. Array Handling: fix problem with text arrays with character set none. When the
293	>	DB connection has a default character set (e.g. UTF8), an error is raised by
294	>	Firebird if the space allocated is not enough to allow for transliteration, even
295	>	though it is not required for character set none.
296
297	<	14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
297	>	5. IBUtils: List of reserved words brought up-to-date
298
299	<	IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
299	>	6. Add ISQL style performance statistics collection to IStatement
300
301	<	See also doc/IBX4LazarusGuide.pdf for important information on
302	<	upgrading to IBX2.
301	>	7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
302	>	CREATE DATABASE statement.
303
304	<	1. Size property of TIBStringField is now the width in characters of the field
305	<	and not the byte length. This applies only to multi-byte character sets such
342	<	as UTF8. The original approach aligned with TStringField. However, the TStringField
343	<	code is not recognised as a bug and hence this change to align the behaviour.
344	<	The TStringField change is expected in fpc 3.2.0.
304	>	8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
305	>	an array dimension is not mistaken for a named parameter prefix.
306
307	<	2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
308	<	true (default) then Size property value saved in the lfm is ignored. Size is
348	<	always set from the dynamic information read from the database. It is unclear
349	<	why anyone would want to override this and set Size to false.
307	>	9. Trim function no longer applied to result of GetAsString for SQL_TEXT
308	>	when Character set is octets. Avoids loss of non printable characters at start of string.
309
310	<	3. ibxscript: should now handle correctly a Case..End statement within a procedure
311	<	block.
310	>	10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
311	>	statistics for the last action. Requires use of procedure IStatement.EnableStatistics
312	>	to enable stats gathering.
313
314	<	4. IBDatabase: new property - CreateIfNotExists. If true and database does not
355	<	exist when an attempt is made to connect to it (run time only) then an attempt
356	<	is made to create the database.
314	>	11. API Version information added as constants to IB.pas
315
316	<	5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
359	<	has been successfully created as a result of a call to CreateDatabase or when
360	<	creating a database after it was found not to exist.
316	>	12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
317
318	<	6.  DBControlGrid: a race condition could result in the wrong row image being
363	<	written to the cache. This has been avoided by a trip round the message
364	<	loop before rendering the row image.
318	>	13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
319
320	<	7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
367	<	a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
368	<	known to risk corrupt rendering of row images when the control is first
369	<	displayed. If necessary use "Application.QueueAsyncCall" to delay opening
370	<	of the dataset (see DBControlGrid examples) until the Form's Window has been created.
320	>	FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
321
322	<	8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
373	<	a TDateEdit control located on an editor panel.
322	>	1. Initial Release
323
375	–	9.  TIBExtract: brought up-to-date plus many bug fixes.
376	–
377	–	10. DBControlGrid: Removed memory leak when updating rows.
378	–
379	–	11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
380	–
381	–	IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
382	–
383	–	1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
384	–	when target codepage is CP_NONE. This is a workaround for
385	–	http://bugs.freepascal.org/view.php?id=30622.
386	–
387	–	2. DBLog option removed from TIBStatisticalService - not supported by server
388	–	since Firebird 1.5.
389	–
390	–	3. ibxscript: An error is no longer generated for "on commit preserve rows" or
391	–	similar.
392	–
393	–	4. IBCodePage: updated mapping between codepages and character id.
394	–
395	–	5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
396	–	Firebird. Character sets with a char width of two are not UTF16.
397	–
398	–	6. Strings received from the database are now always transliterated into UTF8
399	–	regardless of the database character set or connection character set. This
400	–	is for compatibility with the LCL.
401	–
402	–	IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
403	–
404	–	1. IBBlob: Defer reading of blob until read method called. This avoids having to
405	–	read in an entire blob just to get the size of the blob. General performance
406	–	improvement when opening datasets containing blobs.
407	–
408	–	2. Clearing a  Blob now sets the corresponding field's modified flag.
409	–
410	–	3. IBLookupCombo: When not performing auto-complete, original query sort order
411	–	is now used.
412	–
413	–	4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
414	–	determined.
415	–
416	–	5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
417	–
418	–	6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
419	–	lazarus 1.6.0
420	–
421	–	7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
422	–	compilation error.
423	–
424	–	IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
425	–
426	–	1. No character set specified for connection: when a text blob is retrieved, the
427	–	character set is determined by looking up the native character set using then
428	–	Firebird API. Otherwise a text mode blob is assumed to have the same character
429	–	set as the connection.
430	–
431	–	2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
432	–	for Login Dialog returing a change to the database path.
433	–
434	–	3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
435	–	to be changed from that given in the TIBDatabase/TIBServer component and for the
436	–	entered value to be saved on a project specific basis (design time only).
437	–
438	–	4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
439	–	column fieldname. If they are the same then it is acts as a look up for the KeyValue
440	–	Otherwise, it sets the column text to the selected ListField Value.
441	–
442	–	5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
443	–	column width.
444	–
445	–	6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
446	–	and a case insensitive search is requested.
447	–
448	–	7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
449	–	or column ListSource.
450	–
451	–	8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
452	–	unprepare) when closing and the text has not changed.
453	–
454	–	9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
455	–	Less likely to cause a cursor re-use error on Windows.
456	–
457	–	10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
458	–	Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
459	–
460	–	11. TIBTreeView: Guard against nil destination on record changed
461	–
462	–	12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
463	–	string type with the code page set to reflect the returned field encoding after
464	–	Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
465	–	earlier versions.
466	–
467	–	13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
468	–	will now result in transliteration to the code page specified for the Firebird driver
469	–	if the assigned string has a different code page. FPC 3.0.0 onwards only.
470	–
471	–	14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
472	–	is ignored and the lc_ctype value, when the database is opened, is set to align with
473	–	the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
474	–	platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
475	–	3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
476	–	the GETACP is used to determine the Windows code page.
477	–
478	–	15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
479	–	name used as the lc_ctype when the database was opened. Only valid while the
480	–	Database is connected.
481	–
482	–	16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
483	–	id that corresponds to the DefaultCharSetName.
484	–
485	–	IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
486	–
487	–	1. Unix: If Firebird Embedded Server shared object is loaded and a local database
488	–	path is given and database attach fails due to access permission issues on the
489	–	temp directory or security database, then the attach is retried with "localhost:"
490	–	prefixing the databasename. This should avoid problems when the database has to
491	–	be accessed by a local (e.g. classic) server and libfbembed is used.
492	–
493	–	2. Windows: revised search order for Firebird DLL:
494	–	i.   The Firebird Embedded Server in the application Directory.
495	–	ii.  If the FIREBIRD environment variable is set then the directory this
496	–	points to is searched for the FB Client DLL and then then underlying
497	–	"bin" directory.
498	–	iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
499	–	is used to locate the Firebird installation directory and the underlying
500	–	"bin" directory is searched for the FB Client DLL.
501	–	iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
502	–	are searched for the FB Client DLL.
503	–	v.   The PATH Environment variable is used to search for the FB Client DLL.
504	–	vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
505	–
506	–	3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
507	–	See doc/readme.scriptengine and example applications.
508	–
509	–	4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
510	–	simplify the use of the embedded firebird server on both Linux and Windows platforms.
511	–	See dpc/readme.localdatabase and example applications.
512	–
513	–	5. IBDynamicGrid: Reordering on column header click should now also work for
514	–	dynamic columns.
515	–
516	–	6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
517	–	between incrementing/decrementing the lock count and signalling the event.
518	–
519	–	IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
520	–
521	–	1.3.2 was never formally released and only made available as beta copies.
522	–
523	–	1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
524	–
525	–	2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
526	–
527	–	3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
528	–
529	–	4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
530	–	i.e. when it is a calculated field
531	–
532	–	5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
533	–	This problem was due to a race condition between recalculating row heights and
534	–	determining which row was selected by the mouse click. The row height calculation
535	–	is now deferred by an extra trip round the message loop allowing the row to
536	–	be always calculated on the current grid layout rather than risking it being
537	–	calculated on the grid layout after the expanded row has been shrunk.
538	–
539	–	6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
540	–	Windows.
541	–
542	–	7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
543	–	These properties allow the (Firebird) character set name for the field and the max number of bytes per character
544	–	to be determined at runtime. See doc/readme.charactersets.html.
545	–
546	–	8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
547	–	TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
548	–
549	–	9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
550	–	TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
551	–	1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
552	–
553	–	Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
554	–	from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
555	–	implies no truncation.
556	–
557	–	10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
558	–
559	–	11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
560	–	(avoids "Not in Edit Mode" error).
561	–
562	–	12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
563	–
564	–	13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
565	–	DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
566	–
567	–	14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
568	–
569	–	15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
570	–
571	–	16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
572	–
573	–	17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
574	–
575	–	IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
576	–
577	–	1.   OnCloseUp Event Handler added to TDBLookupProperties
578	–
579	–	2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
580	–	problem with row size when exception is called.
581	–
582	–	3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
583	–
584	–	4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
585	–	in a TCustomComboBox and ignores return key if in a TCustomMemo
586	–
587	–	5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
588	–	keyed in i.e. when autocomplete not performed
589	–
590	–	6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
591	–	console mode applications with all LCL required functions (builtin dialogs and
592	–	cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
593	–	not included in your project, IBX should compile and link with a console mode program.
594	–	See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
595	–	console mode application or the IDE will automatically assume that your
596	–	application is GUI based. Instead, you should include the ibexpressconsolemode package.
597	–
598	–	IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
599	–	to use the built in dialogs and cursor management. IBDialogs is
600	–	included by default if "ibexpress" is in your project source's "uses" clause.
601	–	This should be the case for all projects created through the IDE. This is why
602	–	you do not want to add the ibexpress package to console mode applications. The
603	–	ibexpressconsolemode package has been created to allow console mode programs
604	–	to avoid adding LCL dependencies when using IBX, while still having the
605	–	unit search paths set up correctly.
606	–
607	–	Existing users should check to ensure that the "ibexpress" unit is included in
608	–	each project's source file (*.lpr).
609	–
610	–	You may find that in order for the IDE to recognise that ibexpressconsolemode
611	–	exists, you have to first open the package in the IDE and then close it. This
612	–	adds it to the most recently accessed packages list. To make it permanently
613	–	available, add the package name to lazarus' staticpackages.inc file.
614	–
615	–	Thanks to Julio Jiménez for suggesting support of console mode.
616	–
617	–	7.   SQL Parser can now accept quoted strings that include new lines
618	–
619	–	8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
620	–	of text on start of edit. This is particularly useful when tabbing to a
621	–	column and then inserting text.
622	–
623	–	9.   New Examples provided for IB Services and ISQLMonitor.
624	–
625	–	10. Fix error when writing to blob streams that recorded only the last buffer
626	–	write in the blob stream. In most cases, this did not cause a problem as the
627	–	IB Blob Stream is written in a single write. However, with the TDBImage, write
628	–	of a graphic type prefix was lost which caused a problem when the image could
629	–	not be automatically recognised.
630	–
631	–	11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
632	–	already open" errors due to random numbers used for the cursor name being identical.
633	–
634	–	12. IBTable: corrected error that could result in an "Index out of bounds" error
635	–	when opening the table and the Primary Key is the last or only column in the
636	–	table. Thanks to Rick Hoover for the fix.
637	–
638	–	13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
639	–	of "UTF-8", and update list of available database character sets. Existing
640	–	users should check the current lc_ctype setting in their applications.
641	–
642	–	IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
643	–
644	–	1.  Firebird Services: avoid List Index error when opening a service with an
645	–	empty Params property.
646	–
647	–	2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
648	–	Link now set up in Loaded method - avoids occasional failure to apply
649	–	SQL markup on initial open.
650	–
651	–	3.  "Employees" example performance improvements when scrolling.
652	–
653	–	4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
654	–	TFrame. Force recaching of selected frame to avoid GTK race (results in a
655	–	random image cached).
656	–
657	–	5.  DBControlGrid: Should now react to changes in panel height at run time.
658	–
659	–	6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
660	–	even when further rows exist.
661	–
662	–	7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
663	–	always be derived from panel height and setting this property can cause confusion.
664	–	Note for existing projects: to avoid a missing property error at run time,
665	–	each form using the DBControlGrid must be opened, updated and saved in the IDE
666	–	in order to remove the property value from the lfm.
667	–
668	–
669	–	IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
670	–
671	–	1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
672	–	call Prepare before setting parameter values.
673	–
674	–	2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
675	–
676	–	3.  Code tidyup and more robust handling of dsql information result vector.
677	–
678	–	4.  Support for centralised handling of transaction status changes. TIBTransaction
679	–	has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
680	–	and "AfterExecQuery". The first three are called after the same event is called
681	–	for an IBCustomDataSet descendent using the Transaction. The fourth is called
682	–	after a call to TIBSQL.ExecQuery, again using this transaction. These new events
683	–	enable monitoring of transaction status changes for a given transaction to be
684	–	handled in a single place. For example, when a change to the dataset occurs
685	–	an indicator can be set that shows the user that in order to save changes,
686	–	the transaction should be committed.  Rather than doing this per dataset, this
687	–	can now be done per transaction.
688	–
689	–	5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
690	–	the dataset is scrolled. However, any changes to the current row are, by default,
691	–	discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
692	–	have a new property "DataSetCloseAction" that adds automatic posting of changes
693	–	on dataset close. If this property is set to dcDiscardChanges (default) then the
694	–	behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
695	–	then IBX will attempt to post any unsaved changes before the dataset is closed
696	–	(and after the BeforeClose event handler is called). The exception is when the
697	–	dataset is being closed as a result of a transaction rollback. In this case,
698	–	no action is taken and any unsaved  changes are discarded. This avoids both
699	–	unnecessary overhead and the risk that a validation error may occur in the Post
700	–	raising an exception and thereby preventing a rollback.
701	–
702	–	6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
703	–	In earlier versions, the Display Width was set to the maximum byte width rather than the character
704	–	width. Display Widths are now corrected by dividing by the max byte width per character.
705	–	For UTF8 character sets, the byte width is four and hence the Display Width will be
706	–	the byte width divided by 4. The byte width of each character set is determined
707	–	dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
708	–	system table. (see also http://bugs.freepascal.org/view.php?id=27766).
709	–
710	–	7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
711	–
712	–	8.  IBLookupComboEditBox: List should now always be restored to full list when the
713	–	control loses focus. Default Key press default interval reduced to 200ms.
714	–
715	–	9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
716	–	when dataset rows are less than visible rows.
717	–
718	–	10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
719	–	does not exist or DataSet is empty. More responsive on dataset open. New event
720	–	OnRestorePosition. Column sort disabled if no header row.
721	–
722	–	11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
723	–	while dataset state is dsInsert. Avoids posting errors.
724	–
725	–	12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
726	–	avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
727	–
728	–	13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
729	–
730	–	14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
731	–	to solve a specific problem. That is when the dataset cursor is moved (e.g. by
732	–	a grid mouse click and the current row is being edited or inserted. In this case, TDataset
733	–	always "posts" the current record regardless or whether or not it may be more appropriate
734	–	to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
735	–	"MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
736	–	as the first action of the "Post" method and allows the handler to convert the Post
737	–	into a Cancel if that is the appropriate action on moving to a different row. This is
738	–	achieved by returning with "CancelPost" argument set to true. Note that an exception could be
739	–	raised here, but it may still be more appropriate to validate a post and signal
740	–	a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
741	–
742	–	15. On Unix derived systems, the Firebird library name can now be given as a colon
743	–	separated list. Each library name on the list is tried in turn, in left to right
744	–	order with the first found being used as the firebird library. By default, on Linux,
745	–	the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
746	–	overidden by the FBLIB environment variable or the OnGetLibraryName function.
747	–
748	–	Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
749	–	then it will still attempt to access the database via the Firebird Server and will
750	–	require a username and password. If only the pathname is given, then the username
751	–	and password should be omitted and the unix file permissions are used to grant
752	–	access.
753	–
754	–	IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
755	–
756	–	1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
757	–	rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
758	–	that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
759	–	corresponds to a row of the linked DataSource. Any data aware control on the
760	–	replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
761	–
762	–	2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
763	–	When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
764	–	takes place during database access. This may be useful when there are performance issues with
765	–	the change of cursor. Setting the property to false suppresses the change of cursor.
766	–
767	–	3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
768	–	and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
769	–	Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
770	–	making all changes permanent immediately rather than when the transaction is explicitly
771	–	committed.
772	–
773	–	4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
774	–	using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
775	–
776	–	IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
777	–
778	–	Development version only.
779	–
780	–	IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
781	–
782	–	1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
783	–	This is typically used during an "OnBeforeOpen" event handler to manipulate the
784	–	"Where" and "Having" clauses to implement user specified filters of arbitrary
785	–	complexity.
786	–
787	–	2. A new Component Palette entry "Firebird Data Controls" is now available. This has
788	–	three new data aware controls dependent on IBX and which make use of the SQL Parser.
789	–	These are:
790	–
791	–	- TIBLookupComboEditBox
792	–	- TIBDynamicGrid
793	–	- TIBTreeview
794	–
795	–	TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
796	–	of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
797	–	to revise the available list and restrict it to items that are prefixed by the
798	–	typed text (either case sensitive or case insensitive). Autoinsert allows a
799	–	newly typed entry to be added to the list dataset and included in the available
800	–	list items.
801	–
802	–	TIBDynamicGrid is a TDBGrid descendent that provides for:
803	–	- automatic resizing of selected columns to fill the available row length
804	–	- automatic positioning and sizing of a "totals" control, typically at the
805	–	column footer, on a per column basis.
806	–	- DataSet resorting on header row click, sorting the dataset by the selected column.
807	–	A second click on the same header cell reversed the sort order.
808	–	- Support for a "Panel Editor". That is on clicking the indicator column, the row
809	–	is automatically expanded and a panel superimposed on it. The panel can have any
810	–	number of child controls, typically data aware controls with the same datasource
811	–	as the grid allowing for editing of additional fields and more complex editors.
812	–	- Reselection of the same row following resorting.
813	–	- A new cell editor that provides the same functionality as TIBLookupComboEditBox.
814	–	Its properties are specified on a per column basis and allows for one or more
815	–	columns to have their values selected from a list provided by a dataset.
816	–	Autocomplete and autoinsert are also available. The existing picklist editor
817	–	is unaffected by the extension.
818	–
819	–	TIBTreeView is a data aware TCustomTreeView.
820	–
821	–	3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
822	–	zero scale will no longer return an error. An Int64 will be returned instead.
823	–
824	–	4. TIBTransaction now has events for Before and After Transaction End and a new function
825	–	"GetEndAction" allowing the EndAction to be accessed by these event handlers.
826	–
827	–	5. TIBQuery can now handle correctly queries which contain the same keyword parameter
828	–	repeated multiple times.
829	–
830	–	6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
831	–	check used to get in the way of using Stored Procedures, and "Update or Insert"
832	–	statements.
833	–
834	–	7. Insert, Modify and Delete property Editors now support Query Generation from
835	–	Stored Procedures.
836	–
837	–	8. Three new examples illustrate the use of the new IB Controls
838	–
839	–
840	–	IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
841	–
842	–	1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
843	–	setting performance. See "readme.field+param.names in the doc folder.(Thanks to
844	–	Gabor Boros for reporting this problem and for testing the improvements).
845	–
846	–	2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
847	–	See readme.field+param.names in the doc folder.
848	–
849	–	3. IBX SQL Editors will now automatically add double quotes around column names when the database
850	–	dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
851	–
852	–	4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
853	–
854	–	5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
855	–	actions.
856	–
857	–	6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
858	–	thanks to Yuriy Kopnin for pointing this out).
859	–
860	–	7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
861	–
862	–	8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
863	–	for both fields and parameter setting.
864	–
865	–	9. Changes to the Select SQL in an IBCustomDataset descendent should now be
866	–	visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
867	–
868	–	10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
869	–	when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
870	–
871	–	11. TIBTable now has a property editor for "MasterFields"
872	–
873	–	12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
874	–	GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
875	–
876	–	13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
877	–	of settings is unrecognised. Selecting this radio button has no effect on the settings.
878	–
879	–
880	–	IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
881	–
882	–	1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
883	–
884	–	IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
885	–
886	–	1. In a TIBCustomDataset descendent, a generator now only sets the value when
887	–	it is null. This allows for alternative user defined setting of the generator
888	–
889	–	Many thanks to Julio Jiménez for this fix
890	–
891	–	2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
892	–	and suggests that the user may have forgotten to install it.
893	–
894	–	IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
895	–
896	–	1. Conditional compilation used to limit registration of TIntegerField to
897	–	Lazarus versions less than 1.1
898	–
899	–	2. When a database connection is created, character set is now by default set
900	–	to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
901	–	1250 to 1254.
902	–
903	–
904	–	IBX Change Log  version     (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
905	–
906	–	1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
907	–
908	–
909	–	IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
910	–
911	–	1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
912	–	Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
913	–
914	–	2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
915	–	package is changed to do this (which it should do).
916	–
917	–	IBX Change Log  version (1.0-0)  Sat, 28 Apr 2012 16:43:00 +0100
918	–
919	–	1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
920	–
921	–	2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
922	–
923	–	3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
924	–
925	–	4. Property editors should now correctly resize.
926	–
927	–	5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
928	–	(restored original functionality)
929	–
930	–	6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
931	–	library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines