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Revision 315 by tony, Thu Feb 25 11:56:36 2021 UTC

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1	<	IBX Change Log  version                  (2.0-2) tba, 09 Jan 2017 15:31:49 +0000
1	>	IBX Change Log  version (2.4-0 Build 12473) Wed, 17 Feb 2021 10:49:57 +0000
2
3	<	1. TIBDatabase.CreateDatabase: extract full DB Name using reg ex in order to
3	>	1. Firebird 4 support added.
4	>
5	>	2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
6	>	extended precision NUMERIC fields are supported.
7	>
8	>	3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
9	>
10	>	4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
11	>	and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
12	>
13	>	5. IBExtract now supports FB4 enhancements:
14	>	- new data types as above
15	>	- Identity column extensions
16	>	- Default user role
17	>	- SQL Security clause for Database, Tables, Procedures, Functions and Triggers
18	>	- Internal Functions
19	>
20	>	6. IBExtract: new event: OnExtractLines.
21	>
22	>	7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
23	>
24	>	8. IBXServices: Server version no. parsing now allows any letter before major version number
25	>	and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
26	>
27	>	9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
28	>	format for rendering a time zone.
29	>
30	>	10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
31	>	to convert TIME WITH TIME ZONE data type values to and from GMT.
32	>
33	>	11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
34	>	IIBGUIInterface and IIBTimerInf respectively.
35	>
36	>	12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
37	>	now accessible as properties of TIBDatabase and TIBTransaction respectively.
38	>
39	>	13. String Fields: when a fixed character with (CHAR) field is returned, it is now
40	>	truncated to its fixed character width rather than being right padded with
41	>	white space to the maximum data size.
42	>
43	>	14. TIBTable.Empty table. In additional to deleting all records in the underlying
44	>	table, the internal buffers are now also flushed ensuring that the TIBTable is
45	>	also empty.
46	>
47	>	15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
48	>
49	>	16. TIBXControlService descendents: DatabaseName may now be set using a database
50	>	connect string. The database name is extracted from the connect string.
51	>
52	>	17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
53	>
54	>	18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
55	>
56	>	19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
57	>	not being present as required.
58	>
59	>	20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
60	>	version that can be customised to work with other database drivers.
61	>
62	>	IBX Change Log  version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
63	>
64	>	1.  TIBStringField: when a string value is read from a dataset buffer, if the
65	>	number of UTF8 characters exceeds the string size then string is truncated
66	>	to the maximum string size. This is  usually a problem with fixed width columns
67	>	right padded with white space.
68	>
69	>	2.  SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
70	>	If SQLFiltered is set then when a dataset is opened, each line in the
71	>	SQLFilterParams property is assumed to be a SQL condition clause and
72	>	ANDed into the Where clause of the SQL Select statement provided as a
73	>	dataset property. Each such SQL condition thus acts as an additional filter
74	>	on the dataset.
75	>
76	>	3.  The Filtered property inherited from TDataset is no longer used for SQL (server
77	>	side filters).
78	>
79	>	4. IBLookupComboEditBox: Selection should no longer reset to start of text when
80	>	text matches complete entry.
81	>
82	>	5. TIBDataLink: Detail Dataset params not refreshed unless both master and detail
83	>	dataset are active (avoids risk of access violation if master is inactive)
84	>
85	>	6. TIBEvents: Registered property can now be set at design time even if database not open
86	>
87	>	7. TIBEvents: component now correctly re-initialised after call to UnregisterEvents.
88	>	This should prevent "spillover" of events between sessions.
89	>
90	>	8. TIBCustomDataset: GetNextRecord now called when reseting to first record of a unidirectional dataset.
91	>	This should ensure that the internal buffer is set up correctly and avoids
92	>	a duplicate initial row.
93	>
94	>	9. TIBStringField: DataSize now given as byte size of string less trailing any zero character.
95	>	That is, the DataSize should be the field size * character set width. The
96	>	value returned by DataSize is now the same as the Dataset buffer size reserved
97	>	for the field.
98	>
99	>	10. IBExtract: Tidyup of SQL generation. Avoid unnecessary double quotes.
100	>
101	>	11. TIBCustomDataset: Add checks on buffer sizes when copying data from row to field buffer
102	>	and vice-versa. This may result in an exception being raised (correctly) for
103	>	older programs when using dataset fields added to a form and the database has been
104	>	upgraded. For example, computed fields can change from 32-bit to 64-bit integers.
105	>	In such cases, the field needs to be deleted in the IDE fields editor and then
106	>	added back in.
107	>
108	>	12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
109	>	false if query contains only white space and not just empty.
110	>
111	>	12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
112	>	should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
113	>	is cancelled.
114	>
115	>	13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
116	>	called on a null field.
117	>
118	>	14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
119	>	results in an empty dataTC86                Client side Filtered Dataset    1       X
120	>	set.
121	>
122	>	15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
123	>	a cached update is applied and an exception is raised.
124	>
125	>	16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
126	>
127	>	17. Console Mode Local Database support: backup/restore should now work correctly.
128	>
129	>	18. Local Database Support: if an upgrade fails, a downgrade is now performed if
130	>	possible and an exception raised.
131	>
132	>	19. MinimumVersionNo added to Local Database Support. Database will not open if
133	>	below this version no. and upgrade not possible.
134	>
135	>	IBX Change Log  version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
136	>
137	>	1.  TIBXDataSet and Generators: Generator Names that are not all upper case or
138	>	not SQL Identifiers are now supported.
139	>
140	>	2.  TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
141	>	passed to the Firebird engine for execution.
142	>
143	>	3.  TIBDataSet: Unidirectional datasets now give an error message if an attempt
144	>	is made to scroll back.
145	>
146	>	4.  New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
147	>
148	>	5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
149	>	only enclosed in double quotes in SQL dialect 3 and when it needs to be.
150	>
151	>	6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
152	>	validated. If no match is found in the list of field names and the database has
153	>	been opened in SQL Dialect 3, then the ListField Name is converted to upper case
154	>	if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
155	>
156	>	7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
157	>	with fpc 3.2.
158	>
159	>	IBX Change Log  version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
160	>
161	>
162	>	1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
163	>	and is used to override the default settings in the client side "firebird.conf" This
164	>	includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
165	>	Each line of the string list should be a setting in the same format as "firebird.conf".
166	>	For example "WireCompression = true" in order to request wire compression on the client side.
167	>
168	>	Note: explicit settings in the client side "firebird.conf" appear to take precedence
169	>	over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
170	>	also require a compatible setting in the server side "firebird.conf". For example
171	>	"WireCompression = true" must also be set in the server's "firebird.conf" for wire
172	>	compression to be used.
173	>
174	>	Whether or not WireCompression or WireCrypt are in use can be checked using the information
175	>	returned with the Client/Server protocol version. See ibx/examples/dbadmin and
176	>	ibx/examples/dbinfo for examples of how to display this information.
177	>
178	>	2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
179	>	is a "convenience" property. If set the "WireCompression=true" is added to the
180	>	ConfigOverrides. If unchecked then this setting is removed.
181	>
182	>	3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
183	>	not "INT64".
184	>
185	>	4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
186	>	These are:
187	>	property TimestampFormat: string;
188	>	property DateFormat: string;
189	>	property TimeFormat: string;
190	>
191	>	Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
192	>	DATETIME and TIME. The format strings use the standard FPC date/time format
193	>	characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
194	>
195	>	If any of the above properties are set to an empty string, then the locale default
196	>	is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
197	>	locale default is extended by appending '.zzz' to include milliseconds.
198	>
199	>	TIBCSVDataOut by default sets these properties to the empty string, while the other
200	>	two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
201	>
202	>	5. New published property for TIBCSVDataOut:
203	>	property QuoteStrings: boolean (default true)
204	>
205	>	If false then strings are unquoted, otherwise, the QuoteChar property value is
206	>	used to delimit each and every string in the output.
207	>
208	>	6. New published properties for TIBCSVDataOut:
209	>	property FieldSeparator: string;
210	>	property HeaderSeparator: string;
211	>
212	>	Respectively, these provide the separator character(s) used to separate fields
213	>	in data and header rows. Both default to ','.
214	>
215	>	7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
216	>	TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
217	>	property OnFormatTextString;
218	>
219	>	This event handler can be used to process text strings before they are included
220	>	in the output e.g. to replace unprintable characters with alternative strings.
221	>	This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
222	>
223	>	8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
224	>	Uses "FindParam" if in order to find out if a parameter with a given name exists
225	>	and without raising and exception if it does not.
226	>
227	>	9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
228	>	consistency with SQL queries.
229	>
230	>	10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
231	>	When true, SQL statement parameter names are parsed case sensitive. Note for
232	>	TIBDataSet only applies to Select query.
233	>
234	>	11. IBEvents: removing a TIBEvent component from a form should no longer result in
235	>	an IDE exception.
236	>
237	>	12. LocalDBSupport: initial database creation should now work correctly
238	>	when the schema source is an sql file.
239	>
240	>	13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
241	>	when defined, this handler will be called by the internal TIBXScript during
242	>	initial database creation when the schema source is an sql file and may be used
243	>	to provide a visual indication of progress in console mode.
244	>
245	>	14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
246	>	to true while a new local database is being created and its schema populated.
247	>	Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
248	>	when the database is disconnected/connected during the create DB procedure.
249	>
250	>	15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
251	>	are now always ignored and replaced by the user name and password provided as
252	>	the login parameters for the TIBDatabase referenced from the TIBXScript. The
253	>	IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
254	>	completely ignored if this property is true.
255	>
256	>	16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
257	>	to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
258	>	ImageIndex and SelectImageIndex values on AddNode.
259	>
260	>	17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
261	>	read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
262	>	the same database connection.
263	>
264	>	18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
265	>	if provided, this should be an conditional SQL expression suitable for
266	>	including in an SQL Select statement "where" clause. If non-empty and the
267	>	"Filtered" property is true then the SQL expression provided as the value of
268	>	the "Filter" property is "ANDed" with any existing condition statement
269	>	in the SQL statement's "Where" clause.
270	>
271	>	If the "Filter" property is set at run time, the "Filtered" property is true
272	>	and the dataset is already open, then the dataset is closed and re-opened automatically.
273	>
274	>	The "Filter" condition may include IBX style parameters. In which case, their
275	>	value must be set by the dataset's "OnBeforeOpen" event handler.
276	>
277	>	This is a public property for TIBDataSet and TIBQuery query and intended for
278	>	use at run time.
279	>
280	>	Note: The property is a published property of TIBTable. The TIBTable functionality
281	>	is unaffected by this change.
282	>
283	>	IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
284	>
285	>	1. Remove need to check for IsMultiThread by providing access to GUI timers via
286	>	IBGUIInterface. Note: master/detail delay timer does not apply to console
287	>	mode apps.
288	>
289	>	2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
290	>	statement. This avoids problems if "Execute Block" is used as the Query.
291	>
292	>	3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
293	>	internal SQL tokeniser routines.
294	>
295	>	4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
296	>	as a select statement, with or without CTEs.
297	>
298	>	5. IBSQLParser: parser now recognises the "ROWS" clause.
299	>
300	>	6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
301	>	internal SQL tokeniser routines.
302	>
303	>	7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
304	>	being raised for valid set statements processed by a data formatter.
305	>
306	>	8. New published property for TIBDatabase and TIBXServicesConnection. This is
307	>	FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
308	>	the path of the Firebird Library used by the database/services connection.
309	>
310	>	9. New read only public property for TIBDatabase and TIBXServicesConnection. This
311	>	is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
312	>	services connection.
313	>
314	>	10.SQL Property editors now quote parameter names if "Quote identifier" is selected
315	>	or param name is not a valid SQL identifier.
316	>
317	>	11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
318	>	view of whether the text box should be editable when no DataSource is specified.
319	>	TIBLookupComboEditBox has been updated to workaround this problem. As long as
320	>	ReadOnly is false, the text box is editable when no DataSource is specified.
321	>
322	>	12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
323	>	the FBLIB environment variable. If you do not want to permit this then you
324	>	must modify the Register procedure in the design/IBDBReg.pas unit to remove
325	>	this setting.
326	>
327	>	IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
328	>
329	>	1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
330	>	Utf8EscapeControlChars
331	>
332	>	IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
333	>
334	>	IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
335	>	all previous copies of the IBX source code tree before installing this release.
336	>
337	>	The IBX packages used by most users have not changed, with one exception. The
338	>	IBServices unit has been moved to the package iblegacyServices.lpk. To continue
339	>	to use the IBServices unit in your applications, please add the iblegacyServices
340	>	to the list of dependencies. To do this, open the Project Inspector and select
341	>	Add->New Requirement and select "ibLegacyServices" from the list of available
342	>	packages.
343	>
344	>	1. New unit IBXServices. The IBXServices unit is a re-architectured update of
345	>	the IBServices unit providing what is intended to be a clearer and easier to
346	>	use set of IB Services components. See Chapter 10 of the IBX User Guide for
347	>	more information and the guide to "Firebird Service Management Using IBX".
348	>	As indicated above, the legacy services components are still available and
349	>	provided in a separate package. There is no need to update working applications
350	>	using the older versions except for an additional package dependency.
351	>
352	>	2. The IBX packages and source code tree have been re-organised in an attempt to
353	>	finally get rid of the "duplicate ppu" warnings. This re-organisation should
354	>	not affect existing users. Section 2.3 of the IBX User Guide describes the
355	>	new set of IBX packages.
356	>
357	>	3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
358	>	updated to use the new Services API components.
359	>
360	>	4. The iblocal package has been updated to use the new Services API components.
361	>
362	>	5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
363	>	TIBXSecurityService. It had been wrongly classified in the previous version
364	>	as a per database configuration item. It is global to a server and hence
365	>	correctly positioned as part of the Security Package. In the DBAdmin example,
366	>	the setting has moved to the mappings page.
367	>
368	>	6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
369	>	are ignored.
370	>
371	>	7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
372	>	closed before the database is dropped. Before and After Disconnect event handlers
373	>	are also fired.
374	>
375	>	8. TIBTransaction: OnStartTransaction event now fires every time the transaction
376	>	is started and not just the first time.
377	>
378	>	9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
379	>	depenendency with comp type.
380	>
381	>	10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
382	>
383	>	11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
384	>	then this is recognised and not ignored.
385	>
386	>	12. TIBDataSet, TIBQuery, TIBTable: additions:
387	>	function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
388	>	function GetPerfStatistics(var stats: TPerfCounters): boolean;
389	>	property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
390	>
391	>	GetRowsAffected returns the affected row counts from the last insert/update/delete
392	>	if EnableStatistics = true then GetPerfStatistics returns the current stats
393	>	counters for the select query. Note: stats accumulate after each fetch from
394	>	the database. To get total query cost after open, call the "Last" method
395	>	and then GetPerfStatistics.
396	>
397	>	See ibx/examples/consolemode for an example of the use of GetPerfStatistics
398	>
399	>	13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
400	>	in parenthesises.
401	>
402	>	14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
403	>	SQL identifiers are always delimited by double quotes. If false, then they are
404	>	only delimited if the identifier is a reserved word, contains lower case or special
405	>	characters. Set this property to true to retain previous behaviour.
406	>
407	>	15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
408	>	are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
409	>
410	>	16. TIBDataSet, TIBQuery, TIBTable: addition:
411	>	property MasterDetailDelay: integer {defaults to zero}
412	>
413	>	When non-zero and the dataset is a detail table referencing a master table
414	>	through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
415	>	then a synchronisation delay is added (in milliseconds) between the master
416	>	row changing and the detail dataset being re-opened. If the master dataset
417	>	is scrolled before the delay expires then the delay is reset. This can be used
418	>	to avoid performance overheads when scrolling through a large master dataset.
419	>
420	>	Note: uses fptimer and hence requires a thread manager. Under Linux the
421	>	chreads unit must be included in your project. TTimer is not used in order
422	>	to avoid an LCL dependency. Requires FPC 3.0.2 or later.
423	>
424	>	17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
425	>	with Extract Option eoDatabase.
426	>
427	>	18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
428	>	When a deLayoutChanged event is reported on the ListSource dataset, the
429	>	combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
430	>	relationship with the control's datasource (master).
431	>
432	>	19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
433	>
434	>	20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
435	>	stubs. Pedantic fix really, as procedures output in dependency order anyway.
436	>
437	>	21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
438	>	DDL (Firebird 3 and later only).
439	>
440	>	22. TIBLookupComboBox Autocomplete Fixes:
441	>	i. Only appended text is now selected after autocomplete.
442	>	ii. Uppercase keys no longer ignored for autocomplete.
443	>	iii. Retain Prefix case is now honoured correctly.
444	>	iv. When a DataSource is assigned, typing after autocomplete now extends prefix
445	>	before autocomplete performed. i.e. behaviour now the same as when
446	>	no DataSource assigned.
447	>
448	>	23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
449	>	between SQL statements.
450	>
451	>	24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
452	>	ObjectNames are converted to upper case before matching against metadata object
453	>	names, unless the objectname is delimited by double quotes, in which case, the
454	>	double quotes are removed and the remaining string is used (unmodified) to match
455	>	against the metadata object name.
456	>
457	>	If true then the ObjectName is used as is without modification and matched
458	>	against the metadata object name. No attempt is made to remove double quotes.
459	>
460	>	25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
461	>	with eoTrigger, these extract types can be used to select only Database Triggers,
462	>	or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
463	>
464	>	26. TIBXScript: If an exception occurs during the processing of a statement, the
465	>	statement separate character is now reset to the default (';').
466	>
467	>	27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
468	>
469	>	28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
470	>	a commit or reconnect statement and instead activated only when next SQL statement
471	>	is executed.
472	>
473	>	29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
474	>
475	>	30. TIBXScript: case insensitive regex now used when matching statements instead of
476	>	converting statement to upper case.
477	>
478	>	31. TIBExtract: metadata comments now supported. New published property
479	>	IncludeMetaDataComments (default true). If true then metadata comments included
480	>	in extracted DDL. New Extract Object member eoComments. This may be used with
481	>	ExtractObject method to list all metadata comments.
482	>
483	>	32. TIBExtract: ListObjectNames method added.
484	>
485	>	33. Updated Database component editor to support additional connection string
486	>	types.
487	>
488	>	IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
489	>
490	>	NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
491	>	AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
492	>	RELEASE.
493	>
494	>	NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
495	>
496	>	1. IBExtract: Identity columns - add additional check for null column for generator name.
497	>
498	>	2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
499	>	The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
500	>	information). However, this is also a very useful mechanism for returning updated computed by
501	>	column values. Values returned as a result of executing an Insert or Update statement
502	>	replace existing values in the current row for each corresponding column.
503	>
504	>	Previously, if a dataset's select query included read only (computed by) fields then
505	>	an automatic row refresh was performed after an insert or update query had been processed,
506	>	irrespective of the setting of the "ForcedUpdates" property. This has changed such
507	>	that an automatic refresh is no longer performed if an insert or update query contains
508	>	a returning clause that updates one or more fields on the current row. A full row
509	>	refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
510	>	field values and the select query contains read only fields. Use of Insert/update
511	>	returning should be significantly more efficient than executing a refresh query.
512	>
513	>	This behaviour change is intended to be backwards compatible and there should be no need to change
514	>	existing programs, other than to improve performance by using the new capability.
515	>
516	>	3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
517	>	they are called when the dataset row is being deleted, there is no value in
518	>	updating the current record from the query result. Instead, a new event handler
519	>	"OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
520	>	an OnDeleteReturning event handler is provided then it is called with the IResults returned
521	>	by the query. The event handler can then interrogate the query results and
522	>	perform whatever action is necessary. For example to confirm, to the user,
523	>	the deletion of a row with the returned values.
524	>
525	>	4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
526	>	any Computed By or Identity Columns. The IBTables example has been updated to
527	>	illustrate the computation of the employee Full Name on update.
528	>
529	>	5. TIBTable: The GeneratorField property is now published.
530	>
531	>	6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
532	>	When InsertSQL is generated, the Identity columns are not included in the list of values to
533	>	be inserted. A RETURNING clause is added to the insert statement to return the value of
534	>	each Identity column after the insert is executed.
535	>
536	>	7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
537	>	Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
538	>	Insert..Returning clause.
539	>
540	>	8. TIBGenerator: small performance improvement by not preparing query each time
541	>	a new value is generated.
542	>
543	>	9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
544	>
545	>	10. Property editors will now sync table name to a System Table when "Include System
546	>	Tables" is selected and the query is for a System Table.
547	>
548	>	11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
549	>	values are no longer converted to milliseconds from TDateTime and then back again
550	>	to TDateTime (the conversion to milliseconds is the default TDataset approach).
551	>
552	>	12. Property Editors handling of Stored Procedures.
553	>	* Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
554	>	which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
555	>	query).
556	>	* Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
557	>
558	>	13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
559	>	can be used to select a package. If non-empty, the stored procedure name is
560	>	expected to be a stored procedure defined in the specified package and the
561	>	generated SQL will be as required for a stored procedure located in a package.
562	>
563	>	14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
564	>	a "Package Name" drop down box to allow selection of a Firebird 3 Package from
565	>	which a stored procedure can be selected. With no package name selected, non-package
566	>	stored procedures are listed.
567	>
568	>	15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
569	>	for password on reconnect.
570	>
571	>	16. TIBDatabase: use IAttachment for connection default character set id, code page
572	>	and character set name.
573	>
574	>	17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
575	>	DB info lookups"
576	>
577	>	18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
578	>
579	>	19. Add a property Editor for TIBUpdate.RefreshSQL.
580	>
581	>	20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
582	>	parameters. This stops an exception being raised when the field cannot be
583	>	located in the record buffer.
584	>
585	>	21. Property Editors now automatically include System Tables when opened and when the query table
586	>	is a System Table.
587	>
588	>	22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
589	>	This avoids errors due to a stale SQRB or SRB being used for the next query.
590	>
591	>	23. IBServices: Service attach parameters now include "expected_db". This is used to
592	>	add the SPB item isc_spb_expected_db. This names a database using
593	>	an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
594	>	database. examples/services re-written to illustrate use of "expected_db".
595	>
596	>	24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
597	>	This avoids truncated backups when the server returns a timeout (busy) response.
598	>
599	>	25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
600	>
601	>	26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
602	>	databasenames. These are respectively expanded to the local system's temp directory
603	>	(including trailing delimiter) or to a prescribed data directory (including
604	>	trailing delimiter). Under Unix systems the data directory is a hidden directory
605	>	in the user's home directory. The hidden directory name is either the string returned
606	>	from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
607	>	Under Windows, the directory is the same as the Data Directory as decribed
608	>	above but instead prefixed by the User's application data path. These may be
609	>	used to improve application portability for Personal Databases.
610	>
611	>	27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
612	>	this has not worked for a long time and is not useful either. FieldDefs should be
613	>	managed using the Fields Editor as with any other dataset. To access the fields
614	>	editor for a TIBTable component, double click on the component. The fields editor
615	>	is then displayed.
616	>
617	>	28. TIBDatabaseInfo: new properties/function
618	>	* DateDBCreated (returns date/time database created)
619	>	* TransactionCount (returns no. of active transactions)
620	>	* GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
621	>	* PagesFree (Firebird 3 or later)
622	>	* PagesUsed (Firebird 3 or later)
623	>	* Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
624	>	* EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
625	>
626	>	29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
627	>
628	>	30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
629	>
630	>	31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
631	>	the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
632	>
633	>	32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
634	>	in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
635	>	firing during backup and restore.
636	>
637	>	33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
638	>	for verbose output using the new property "StatisticsRequested".
639	>	see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
640	>
641	>	34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
642	>
643	>	35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
644	>	palette. This uses the online validation feature added in Firebird 2.5. The
645	>	services's properties enable inclusion/exclusion of tables and indexes using
646	>	regular expressions. See.
647	>	https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
648	>
649	>	36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
650	>	option on a database.
651	>
652	>	37. TIBCustomService: Assign method implemented to allow copying of service login
653	>	context between service API components. "Detach" method now only detaches
654	>	service when last reference to the service interface detaches. Tidy up of
655	>	code for SetActive and Attach methods including password hiding.
656	>
657	>	38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
658	>	and used to determine the auth method and protocol used for the connection.
659	>
660	>	39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
661	>	a Create Database Statement generated by IBX.
662	>
663	>	40. All IBServices now have an additional published property "PortNo". This may
664	>	be set to a non-standard port number when necessary. If zero then the default
665	>	port number is used.
666	>
667	>	41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
668	>	and not just the mouse.
669	>
670	>	42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
671	>
672	>	43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
673	>	image index and selected image index for each node to be set from a database field.
674	>
675	>	44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
676	>	then database schema includes grants to all users. If not present then the
677	>	only user grants included are those to User PUBLIC.
678	>
679	>	45. TIBTreeView: performance improvement. When expanding include both expanded node
680	>	and child nodes in dataset.
681	>
682	>
683	>	IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
684	>
685	>	1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
686	>	changes.
687	>
688	>	2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
689	>	Bug could result in truncated multi-byte character set values.
690	>
691	>	3. Changes consequential on moving fbintf character set utility functions from
692	>	IFirebirdAPI to IAttachment.
693	>
694	>	4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
695	>
696	>	5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
697	>	results in autocomplete ignoring prefix text.
698	>
699	>	6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
700	>	entering a new name into the text box.
701	>
702	>	7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
703	>	Firebird rather than recomputing it.
704	>
705	>	8. Property Editor positioning tidy up: All IBX Property editors should now be
706	>	screen centre. Previously some were "poDesigned" which may be inappropriate
707	>	for multi monitor desktops.
708	>
709	>	10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
710	>
711	>	11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
712	>	a transaction and always reset the object.
713	>
714	>	12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
715	>
716	>	13. TIBXScript: Allow for override of database filename in Create Database statements.
717	>
718	>	14. IBLocaldb: Support initialisation of the database from an SQL script in addition
719	>	to a gbak format archive.
720	>
721	>	15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
722	>
723	>	16. IBLocaldb: Drop database if error creating an empty database.
724	>
725	>	17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
726	>	unless selected node not in current dataset.
727	>
728	>	18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
729	>	to TIBCustomService, and IBlocalDB code tidy up.
730	>
731	>	19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
732	>	behaviour due to uninitialised variable.
733	>
734	>	20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
735	>	integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
736	>
737	>	21. IBSQL: When Database changed ensure that all resources are freed.
738	>
739	>	22. IBCustomDataset: When database changed ensure that queries an unprepared.
740	>
741	>	23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
742	>	* Line Wrap on SQL Token boundaries (on user command)
743	>	* auto-complete table names in drop down list of table names
744	>	* Double click on tablename or field name adds to SQL text
745	>
746	>	24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
747	>
748	>	25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
749	>	TVariantArray. Seems to avoid memory corruption in Windows (probably a
750	>	workaround for a problem in fpc 3.0.4 win64).
751	>
752	>	26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
753	>
754	>	27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
755	>
756	>	IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
757	>
758	>	1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
759		include remote system name.
760
761		2. TIBExtract: No longer include comment header and COMMIT statement for empty
#	Line 18 | Line 773 | IBX Change Log  version
773		that BindFields is called when the query is next activated. Avoids FieldName
774		not found error.
775
776	+	7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
777	+	purpose and allows the programmer to define any action they want for Update, Insert
778	+	or Delete. This may be complex SQL (similar to a Trigger), application specific
779	+	filtering of updates, or use of statements such as Grant or Revoke instead of
780	+	normal DML. See User Manual for more information.
781	+
782		IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
783
784		1. TIBEvents: Fix uninitialised variable that could result in lost events.

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