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Revision 419 by tony, Sat Aug 5 12:42:00 2023 UTC

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1 < IBX Change Log  version                                  (2.1-1) Sun, 07 Jan 2018 15:15:13 +0000
1 > IBX Change Log  version (2.6-2 Build 14016) Sat, 05 Aug 2023 11:54:55 +0100
2  
3 < 1. IBExtract: Identity columns - add addition check for null column for generator name.
3 > 1. Fixed repeated "type" keyword in IBBufferCursors. This may cause a compile error
4 >   with later versions of fpc - later than 3.2.2.
5 >
6 > 2. IBUpdateSQL. update internal queries if parent dataset database changed.
7 >
8 > 3. IBUpdateSQL: Do not prepare an empty internal query.
9 >
10 > 4. IBBufferedCursors: avoid range error when max field no. is > fields.count
11 >
12 > 5. IBBufferedCursors: avoid End of File error if refresh query returns and empty row count
13 >
14 > IBX Change Log  version (2.6-1 Build 13985) Mon, 17 Jul 2023 14:16:41 +0100
15 >
16 > 1. Maintenance update of 2.6.0. This version is still at beta.
17 >
18 > 2. Reverse out changes to DrawCellText signature in IBArrayGrid and IBDynamic Grid.
19 >   See https://gitlab.com/freepascal.org/lazarus/lazarus/-/commit/53aaae9c5e2a5edac5b1d2f70739a8ef7b0a9623
20 >
21 > 3. ibxscript: When parsing a store procedure or function with a variable name
22 >   enclosed in doublequotes, the double quotes are no longer removed.
23 >
24 > IBX Change Log  version (2.6-0 Build 13976) Thu, 22 Jun 2023 13:49:22 +0100
25 >
26 > NOTE: THIS VERSION RE-WRITES THE INTERNAL BUFFER MANAGER AND SHOULD BE CONSIDERED
27 >      AS BETA SOFTWARE. EVEN THOUGH IT HAS PASSED ALL REGRESSION TESTS, IT CANNOT
28 >      BE ASSUMED TO BE PRODUCTION READY UNTIL WIDER USE. PLEASE REPORT ANY
29 >      ISSUES TO support@mwasoftware.co.uk
30 >
31 > 1. Complete rewrite of internal buffer management in order to improve performance
32 >   and maintainability. Highlights:
33 >
34 >   * Extending the size of the buffer pool no longer has to copy the entire record
35 >     cache. Instead, a new extent is simply added to the buffer pool.
36 >   * A memory to memory copy of each display buffer now is avoided when scolling the
37 >     dataset.
38 >   * A separate set of buffers is now used for calculated fields. This avoids
39 >     having to keep copies of calculated field values in the buffer cache.
40 >   * Compact bitmaps are used to record null status and need to refresh in each
41 >     buffer.
42 >   * Display buffer type changed from PChar to TRecordBuffer in line with change of
43 >     buffer type in FCL-DB.
44 >
45 > 2. TIBUpdateSQL: changes to SQL text will close linked dataset if open. This is
46 >   to ensure same behaviour as TIBDataset, TIBTable and TIBStoredProcedure.
47 >
48 > 3. TField Provider Flags: pfRefreshOnInsert and pfRefreshOnUpdate are now supported.
49 >   If either or both of these flags are set at design time (using the fields editor)
50 >   then this forces a row refresh on respectively insert or update, or both, when the
51 >   corresponding field is not present in an SQL RETURNING clause.
52 >
53 > 4. TIBCustomDataset.FieldDefsFromQuery moved to a helper class (TFieldDefsMaker) in order to improve
54 >   maintainability and readability and to add identification of primary key fields.
55 >
56 > 5. TIBQuery, TIBDataset and TIBTable. Traditionally, IBX has implemented the Refresh method
57 >   as a refresh of the current row. However, this is different behaviour to that described
58 >   in the FPC documentation for TDataset.Refresh which is described as "refetches the data in
59 >   the dataset from the underlying database, and attempts to reposition the cursor on
60 >   the same record as it was". IBX now complies with the FPC definition of Refresh.
61 >
62 > 6. A progammatic Row Refresh should no longer be required.
63 >   Use Insert/Update... returning to refresh any fields that may change following an
64 >   insert or update i.e. Identify fields on Insert only, Computed By, Blob and array fields
65 >   on both. If there are any other fields (e.g. updated by triggers) set the appropriate ProviderFlag
66 >   for the field at Design Time to force a row refresh if not in the returning clause.
67 >
68 > 7. It should now be possible to insert a row into an empty unidirectional dataset.
69 >
70 > 8. New TIBQuery, TIBDataSet and TIBTable property: BufferChunksInFirstBlock (default 50).
71 >   This gives the number of buffers in the initial block for the buffer pool in
72 >   bi-directional datasets. BufferChunks (default 1000) gives the number of buffers
73 >   in subsequent buffer pool blocks. This avoids large and mostly unused memory allocations
74 >   for small datasets.
75 >
76 > IBX Change Log  version (2.5-1 Build 13927) Tue, 6 Dec 2022 23:13:00 +0000
77 >
78 > 1. IBCustomDataset: avoid problem with additions to TFieldType by using a subset instead.
79 >
80 > 2. TIBDynamicGrid: change DrawCellText declaration to comply with laz 2.3.0
81 >
82 > 3. TIBArrayGrid: change DrawCellText declaration to comply with laz 2.3.0
83 >
84 > IBX Change Log  version (2.5-0 Build 13868) Fri, 29 Jul 2022 09:52:01 +0100
85 >
86 > 1. TIBTransaction: new properties
87 >    property TransactionID: integer read GetTransactionID;
88 >    property IsReadOnly: boolean read GetIsReadOnly;
89 >    {published}
90 >    property TransactionName: string read FTransactionName write SetTransactionName;
91 >
92 > 2. IBCustomDataset: per row blob and array buffer cached clear before processing
93 >   Insert or Update...Returning. This allows blobs and arrays to be returned
94 >   by the statement.
95 >
96 > 3. TSQLXMLReader moved from IBXScript to package fbintf unit IBUtils.
97 >
98 > 4. TransactionName initialised to a newly generated GUID if empty.
99 >
100 > 5. New unit: IBJournal. This provides the TIBJournal component which is a wrapper
101 >   for the fbintf package's journaling capability. TIBJournal is used to set the
102 >   file path and filename for the journal file and to Enabled (start journaling) and
103 >   disable (stop journaling). See fbintf/doc/README.ClientSideJournaling.pdf for
104 >   more information, and comments in IBJournal.pas.
105 >
106 > 6. TIBDatabase.InternalTransaction is now a read only transaction.
107 >
108 > 7. Bug fix: blob id no longer set to null on update when blob has not been
109 >   retrieved.
110 >
111 > 8. Row auto refreshed on update/insert if blob or array field updated and field
112 >   not in a returning clause.
113 >
114 > 9. ColumnCount moved from record buffer header to a single per dataset count. Reduces
115 >   buffer overhead and avoids problem when refresh query has a different column
116 >   count to select query i.e. incorrectly changing number of columns.
117 >
118 > 10. IBExtract: support added for UDR Functions, Procedure and Trigger declarations.
119 >
120 > 11. TIBDatabaseInfo. New property FirebirdVersion. This returns the current Firebird version
121 >    string. Note that the Version property returns an InterBase compatible version string.
122 >
123 > 12. IBExtract: ensure sql identifiers returned as a LIST are always quoted.
124 >
125 > IBX Change Log  version (2.5-0 Build 12933) Mon, 29 Nov 2021 14:59:54 +0000
126 >
127 > 1. IBCustomDataset: Modify TISQL component now defaults to GoToFirstRecordOnExecute := true.
128 >   This is for compatibility with Firebird 5 where Update...Returning can return
129 >   a cursor.
130 >
131 > IBX Change Log  version (2.4-3 Build 12886) Sat, 23 Oct 2021 14:58:30 +0100
132 >
133 > 1. Add try-..except check when initially loading library in IDE. This should
134 > ensure that IDE continues to load even when a failure occurs in IBX load
135 > library.
136 >
137 > 2. IBXScript: now recognises a CASE...END block within a stored procedure and
138 >   hence will correctly detect end of the outer containing block when the block
139 >   contains a SELECT ... CASE ... END construct.
140 >
141 > 3. IBExtract: some further tidying up to remove extraneous white space.
142 >
143 > 4. IBCustomDataSet: DefaultFieldClasses array declaration updated to avoid compile time
144 >   errors when extra elements are added to DB.TFieldType.
145 >
146 > 5. IBUpdate: updated to reflect changes to ISQLParam.
147 >
148 > 6. IBXScript: now correctly parses a DECLARE statement which includes a quoted string.
149 >
150 > 7. IBExtract: for ODS >=13, increment generator value by one for ALTER SEQUENCE statement.
151 >
152 > 8. IBSQL: Support for scrollable cursors added (note: local databases only)
153 >
154 > IBX Change Log  version (2.4-2 Build 12773) Mon, 23 Aug 2021 11:59:42 +0100
155 >
156 > 1. TIBDatabaseInfo: review and tidy-up of property types. Most widen to int64 with the
157 >   exception of those defined to be one byte wide e.g. DBImplementationNo.
158 >
159 > 2. TIBSQL: Batch Update/Insert support added.
160 >
161 > 3. TIBStoredProc: when generating the SQL, the value of the StoredProcName property
162 >   is no longer automatically converted to upper case when it is syntactically a
163 >   SQL Identifier. This is to support the use of stored procedures defined e.g.
164 >   as CREATE PROCEDURE "iCASE".
165 >
166 >   There could be a backwards compatibility issue when the StoredProcName was entered
167 >   manually at design time. That is not selected from the drop down list. If the
168 >   StoredProcName is entered in mixed case and the procedure was declared e.g. as
169 >   CREATE PROCEDURE iCASE, then the SQL generation will be incorrect. You should
170 >   ensure that the value of the StoredProcName is all upper case, unless it was
171 >   declared under dialect 3 and explicitly as mixed case (i.e. delimited by double
172 >   quotes).
173 >
174 >   Note that when a stored procedure name was declared delimited in double quotes,
175 >   as in the first example above, the value of the StoredProcName property must not
176 >   include the delimiters (double quotes).
177 >
178 > 4. IBXUpgradeConfFile: an exception is now raised if a patch file specified in
179 >   upgrade.conf was not found. This replaces silently ignoring the problem.
180 >
181 > 5. TIBLocalDBSupport: new property "SectionHeaderTemplate". This defaults to
182 >   'Version.%.3d' and is used to generate the section header names (for a given
183 >   version no.) in the upgrade.conf file.
184 >
185 > IBX Change Log  version (2.4-1 Build 12550) Wed, 23 Jun 2021 13:59:14 +0100
186 >
187 > 1. -c command line option added to fbsql example program. Used to set connection
188 >   character set.
189 >
190 > IBX Change Log  version (2.4-0 Build 12543) Mon, 22 Feb 2021 11:00:08 +0000
191 >
192 > 1. Firebird 4 support added.
193 >
194 > 2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
195 >   extended precision NUMERIC fields are supported.
196 >
197 > 3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
198 >
199 > 4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
200 >   and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
201 >
202 > 5. IBExtract now supports FB4 enhancements:
203 >   - new data types as above
204 >   - Identity column extensions
205 >   - Default user role
206 >   - SQL Security clause for Database, Tables, Procedures, Functions and Triggers
207 >   - Internal Functions
208 >
209 > 6. IBExtract: new event: OnExtractLines.
210 >
211 > 7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
212 >
213 > 8. IBXServices: Server version no. parsing now allows any letter before major version number
214 >   and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
215 >
216 > 9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
217 >   format for rendering a time zone.
218 >
219 > 10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
220 >     to convert TIME WITH TIME ZONE data type values to and from GMT.
221 >
222 > 11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
223 >    IIBGUIInterface and IIBTimerInf respectively.
224 >
225 > 12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
226 >    now accessible as properties of TIBDatabase and TIBTransaction respectively.
227 >
228 > 13. String Fields: when a fixed character with (CHAR) field is returned, it is now
229 >    truncated to its fixed character width rather than being right padded with
230 >    white space to the maximum data size.
231 >
232 > 14. TIBTable.Empty table. In additional to deleting all records in the underlying
233 >    table, the internal buffers are now also flushed ensuring that the TIBTable is
234 >    also empty.
235 >
236 > 15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
237 >
238 > 16. TIBXControlService descendents: DatabaseName may now be set using a database
239 >    connect string. The database name is extracted from the connect string.
240 >
241 > 17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
242 >
243 > 18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
244 >
245 > 19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
246 >    not being present as required.
247 >
248 > 20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
249 >    version that can be customised to work with other database drivers.
250 >
251 > 21. ISQLMonitor: use platform specific LineEnding to delimit messages. Avoids
252 >    unnecessary CR at end of line on Unix platforms.
253 >
254 > 22. ISQLMonitor: Unix: Default semaphore timeout increased from 1 second to 10
255 >    seconds in order to reduce risk of message loss.
256 >
257 > 23. ISQLMonitor: read and write count statistics now available via:
258 >      property TIBSQLMonitor.ReadCount;
259 >      IIBSQLMonitorHook.GetWriteCount: integer;
260 >
261 > 24. ISQLMonitor tidy up and unit split. IPC functions moved to new unit IBIPC.
262 >
263 > IBX Change Log  version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
264 >
265 > 1.  TIBStringField: when a string value is read from a dataset buffer, if the
266 >    number of UTF8 characters exceeds the string size then string is truncated
267 >    to the maximum string size. This is  usually a problem with fixed width columns
268 >    right padded with white space.
269 >
270 > 2.  SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
271 >    If SQLFiltered is set then when a dataset is opened, each line in the
272 >    SQLFilterParams property is assumed to be a SQL condition clause and
273 >    ANDed into the Where clause of the SQL Select statement provided as a
274 >    dataset property. Each such SQL condition thus acts as an additional filter
275 >    on the dataset.
276 >
277 > 3.  The Filtered property inherited from TDataset is no longer used for SQL (server
278 >    side filters).
279 >
280 > 4. IBLookupComboEditBox: Selection should no longer reset to start of text when
281 >   text matches complete entry.
282 >
283 > 5. TIBDataLink: Detail Dataset params not refreshed unless both master and detail
284 >   dataset are active (avoids risk of access violation if master is inactive)
285 >
286 > 6. TIBEvents: Registered property can now be set at design time even if database not open
287 >
288 > 7. TIBEvents: component now correctly re-initialised after call to UnregisterEvents.
289 >   This should prevent "spillover" of events between sessions.
290 >
291 > 8. TIBCustomDataset: GetNextRecord now called when reseting to first record of a unidirectional dataset.
292 >   This should ensure that the internal buffer is set up correctly and avoids
293 >   a duplicate initial row.
294 >
295 > 9. TIBStringField: DataSize now given as byte size of string less trailing any zero character.
296 >   That is, the DataSize should be the field size * character set width. The
297 >   value returned by DataSize is now the same as the Dataset buffer size reserved
298 >   for the field.
299 >
300 > 10. IBExtract: Tidyup of SQL generation. Avoid unnecessary double quotes.
301 >
302 > 11. TIBCustomDataset: Add checks on buffer sizes when copying data from row to field buffer
303 >    and vice-versa. This may result in an exception being raised (correctly) for
304 >    older programs when using dataset fields added to a form and the database has been
305 >    upgraded. For example, computed fields can change from 32-bit to 64-bit integers.
306 >    In such cases, the field needs to be deleted in the IDE fields editor and then
307 >    added back in.
308 >
309 > 12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
310 >    false if query contains only white space and not just empty.
311 >
312 > 12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
313 >    should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
314 >    is cancelled.
315 >
316 > 13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
317 >    called on a null field.
318 >
319 > 14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
320 >    results in an empty dataTC86                Client side Filtered Dataset    1       X
321 > set.
322 >
323 > 15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
324 >    a cached update is applied and an exception is raised.
325 >
326 > 16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
327 >
328 > 17. Console Mode Local Database support: backup/restore should now work correctly.
329 >
330 > 18. Local Database Support: if an upgrade fails, a downgrade is now performed if
331 >    possible and an exception raised.
332 >
333 > 19. MinimumVersionNo added to Local Database Support. Database will not open if
334 >    below this version no. and upgrade not possible.
335 >
336 > IBX Change Log  version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
337 >
338 > 1.  TIBXDataSet and Generators: Generator Names that are not all upper case or
339 >    not SQL Identifiers are now supported.
340 >
341 > 2.  TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
342 >    passed to the Firebird engine for execution.
343 >
344 > 3.  TIBDataSet: Unidirectional datasets now give an error message if an attempt
345 >    is made to scroll back.
346 >
347 > 4.  New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
348 >
349 > 5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
350 >   only enclosed in double quotes in SQL dialect 3 and when it needs to be.
351 >
352 > 6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
353 >   validated. If no match is found in the list of field names and the database has
354 >   been opened in SQL Dialect 3, then the ListField Name is converted to upper case
355 >   if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
356 >
357 > 7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
358 >   with fpc 3.2.
359 >
360 > IBX Change Log  version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
361 >
362 >
363 > 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
364 >   and is used to override the default settings in the client side "firebird.conf" This
365 >   includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
366 >   Each line of the string list should be a setting in the same format as "firebird.conf".
367 >   For example "WireCompression = true" in order to request wire compression on the client side.
368 >
369 >   Note: explicit settings in the client side "firebird.conf" appear to take precedence
370 >   over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
371 >   also require a compatible setting in the server side "firebird.conf". For example
372 >   "WireCompression = true" must also be set in the server's "firebird.conf" for wire
373 >   compression to be used.
374 >
375 >   Whether or not WireCompression or WireCrypt are in use can be checked using the information
376 >   returned with the Client/Server protocol version. See ibx/examples/dbadmin and
377 >   ibx/examples/dbinfo for examples of how to display this information.
378 >
379 > 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
380 >   is a "convenience" property. If set the "WireCompression=true" is added to the
381 >   ConfigOverrides. If unchecked then this setting is removed.
382 >
383 > 3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
384 >   not "INT64".
385 >
386 > 4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
387 >   These are:
388 >    property TimestampFormat: string;
389 >    property DateFormat: string;
390 >    property TimeFormat: string;
391 >
392 >   Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
393 >   DATETIME and TIME. The format strings use the standard FPC date/time format
394 >   characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
395 >
396 >   If any of the above properties are set to an empty string, then the locale default
397 >   is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
398 >   locale default is extended by appending '.zzz' to include milliseconds.
399 >
400 >   TIBCSVDataOut by default sets these properties to the empty string, while the other
401 >   two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
402 >
403 > 5. New published property for TIBCSVDataOut:
404 >     property QuoteStrings: boolean (default true)
405 >
406 >   If false then strings are unquoted, otherwise, the QuoteChar property value is
407 >   used to delimit each and every string in the output.
408 >
409 > 6. New published properties for TIBCSVDataOut:
410 >    property FieldSeparator: string;
411 >    property HeaderSeparator: string;
412 >
413 >   Respectively, these provide the separator character(s) used to separate fields
414 >   in data and header rows. Both default to ','.
415 >
416 > 7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
417 >    TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
418 >    property OnFormatTextString;
419 >
420 >   This event handler can be used to process text strings before they are included
421 >   in the output e.g. to replace unprintable characters with alternative strings.
422 >   This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
423 >
424 > 8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
425 >   Uses "FindParam" if in order to find out if a parameter with a given name exists
426 >   and without raising and exception if it does not.
427 >
428 > 9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
429 >   consistency with SQL queries.
430 >
431 > 10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
432 >    When true, SQL statement parameter names are parsed case sensitive. Note for
433 >    TIBDataSet only applies to Select query.
434 >
435 > 11. IBEvents: removing a TIBEvent component from a form should no longer result in
436 >    an IDE exception.
437 >
438 > 12. LocalDBSupport: initial database creation should now work correctly
439 >    when the schema source is an sql file.
440 >
441 > 13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
442 >    when defined, this handler will be called by the internal TIBXScript during
443 >    initial database creation when the schema source is an sql file and may be used
444 >    to provide a visual indication of progress in console mode.
445 >
446 > 14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
447 >    to true while a new local database is being created and its schema populated.
448 >    Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
449 >    when the database is disconnected/connected during the create DB procedure.
450 >
451 > 15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
452 >    are now always ignored and replaced by the user name and password provided as
453 >    the login parameters for the TIBDatabase referenced from the TIBXScript. The
454 >    IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
455 >    completely ignored if this property is true.
456 >
457 > 16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
458 >    to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
459 >    ImageIndex and SelectImageIndex values on AddNode.
460 >
461 > 17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
462 >    read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
463 >    the same database connection.
464 >
465 > 18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
466 >    if provided, this should be an conditional SQL expression suitable for
467 >    including in an SQL Select statement "where" clause. If non-empty and the
468 >    "Filtered" property is true then the SQL expression provided as the value of
469 >    the "Filter" property is "ANDed" with any existing condition statement
470 >    in the SQL statement's "Where" clause.
471 >
472 >    If the "Filter" property is set at run time, the "Filtered" property is true
473 >    and the dataset is already open, then the dataset is closed and re-opened automatically.
474 >
475 >    The "Filter" condition may include IBX style parameters. In which case, their
476 >    value must be set by the dataset's "OnBeforeOpen" event handler.
477 >
478 >    This is a public property for TIBDataSet and TIBQuery query and intended for
479 >    use at run time.
480 >
481 >    Note: The property is a published property of TIBTable. The TIBTable functionality
482 >    is unaffected by this change.
483 >
484 > IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
485 >
486 > 1. Remove need to check for IsMultiThread by providing access to GUI timers via
487 >   IBGUIInterface. Note: master/detail delay timer does not apply to console
488 >   mode apps.
489 >
490 > 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
491 >   statement. This avoids problems if "Execute Block" is used as the Query.
492 >
493 > 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
494 >   internal SQL tokeniser routines.
495 >
496 > 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
497 >   as a select statement, with or without CTEs.
498 >
499 > 5. IBSQLParser: parser now recognises the "ROWS" clause.
500 >
501 > 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
502 >   internal SQL tokeniser routines.
503 >
504 > 7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
505 >    being raised for valid set statements processed by a data formatter.
506 >
507 > 8. New published property for TIBDatabase and TIBXServicesConnection. This is
508 >   FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
509 >   the path of the Firebird Library used by the database/services connection.
510 >
511 > 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
512 >   is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
513 >   services connection.
514 >
515 > 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
516 >   or param name is not a valid SQL identifier.
517 >
518 > 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
519 >    view of whether the text box should be editable when no DataSource is specified.
520 >    TIBLookupComboEditBox has been updated to workaround this problem. As long as
521 >    ReadOnly is false, the text box is editable when no DataSource is specified.
522 >
523 > 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
524 >    the FBLIB environment variable. If you do not want to permit this then you
525 >    must modify the Register procedure in the design/IBDBReg.pas unit to remove
526 >    this setting.
527 >
528 > IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
529 >
530 > 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
531 >   Utf8EscapeControlChars
532 >
533 > IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
534 >
535 > IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
536 > all previous copies of the IBX source code tree before installing this release.
537 >
538 > The IBX packages used by most users have not changed, with one exception. The
539 > IBServices unit has been moved to the package iblegacyServices.lpk. To continue
540 > to use the IBServices unit in your applications, please add the iblegacyServices
541 > to the list of dependencies. To do this, open the Project Inspector and select
542 > Add->New Requirement and select "ibLegacyServices" from the list of available
543 > packages.
544 >
545 > 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
546 >   the IBServices unit providing what is intended to be a clearer and easier to
547 >   use set of IB Services components. See Chapter 10 of the IBX User Guide for
548 >   more information and the guide to "Firebird Service Management Using IBX".
549 >   As indicated above, the legacy services components are still available and
550 >   provided in a separate package. There is no need to update working applications
551 >   using the older versions except for an additional package dependency.
552 >
553 > 2. The IBX packages and source code tree have been re-organised in an attempt to
554 >   finally get rid of the "duplicate ppu" warnings. This re-organisation should
555 >   not affect existing users. Section 2.3 of the IBX User Guide describes the
556 >   new set of IBX packages.
557 >
558 > 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
559 >   updated to use the new Services API components.
560 >
561 > 4. The iblocal package has been updated to use the new Services API components.
562 >
563 > 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
564 >   TIBXSecurityService. It had been wrongly classified in the previous version
565 >   as a per database configuration item. It is global to a server and hence
566 >   correctly positioned as part of the Security Package. In the DBAdmin example,
567 >   the setting has moved to the mappings page.
568 >
569 > 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
570 >   are ignored.
571 >
572 > 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
573 >   closed before the database is dropped. Before and After Disconnect event handlers
574 >   are also fired.
575 >
576 > 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
577 >   is started and not just the first time.
578 >
579 > 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
580 >   depenendency with comp type.
581 >
582 > 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
583 >
584 > 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
585 >    then this is recognised and not ignored.
586 >
587 > 12. TIBDataSet, TIBQuery, TIBTable: additions:
588 >    function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
589 >    function GetPerfStatistics(var stats: TPerfCounters): boolean;
590 >    property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
591 >
592 >    GetRowsAffected returns the affected row counts from the last insert/update/delete
593 >    if EnableStatistics = true then GetPerfStatistics returns the current stats
594 >    counters for the select query. Note: stats accumulate after each fetch from
595 >    the database. To get total query cost after open, call the "Last" method
596 >    and then GetPerfStatistics.
597 >
598 >    See ibx/examples/consolemode for an example of the use of GetPerfStatistics
599 >
600 > 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
601 >    in parenthesises.
602 >
603 > 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
604 >    SQL identifiers are always delimited by double quotes. If false, then they are
605 >    only delimited if the identifier is a reserved word, contains lower case or special
606 >    characters. Set this property to true to retain previous behaviour.
607 >
608 > 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
609 >    are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
610 >
611 > 16. TIBDataSet, TIBQuery, TIBTable: addition:
612 >       property MasterDetailDelay: integer {defaults to zero}
613 >
614 >    When non-zero and the dataset is a detail table referencing a master table
615 >    through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
616 >    then a synchronisation delay is added (in milliseconds) between the master
617 >    row changing and the detail dataset being re-opened. If the master dataset
618 >    is scrolled before the delay expires then the delay is reset. This can be used
619 >    to avoid performance overheads when scrolling through a large master dataset.
620 >
621 >    Note: uses fptimer and hence requires a thread manager. Under Linux the
622 >    chreads unit must be included in your project. TTimer is not used in order
623 >    to avoid an LCL dependency. Requires FPC 3.0.2 or later.
624 >
625 > 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
626 >    with Extract Option eoDatabase.
627 >
628 > 18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
629 >    When a deLayoutChanged event is reported on the ListSource dataset, the
630 >    combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
631 >    relationship with the control's datasource (master).
632 >
633 > 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
634 >
635 > 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
636 >    stubs. Pedantic fix really, as procedures output in dependency order anyway.
637 >
638 > 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
639 >    DDL (Firebird 3 and later only).
640 >
641 > 22. TIBLookupComboBox Autocomplete Fixes:
642 >    i. Only appended text is now selected after autocomplete.
643 >    ii. Uppercase keys no longer ignored for autocomplete.
644 >    iii. Retain Prefix case is now honoured correctly.
645 >    iv. When a DataSource is assigned, typing after autocomplete now extends prefix
646 >        before autocomplete performed. i.e. behaviour now the same as when
647 >        no DataSource assigned.
648 >
649 > 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
650 >    between SQL statements.
651 >
652 > 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
653 >    ObjectNames are converted to upper case before matching against metadata object
654 >    names, unless the objectname is delimited by double quotes, in which case, the
655 >    double quotes are removed and the remaining string is used (unmodified) to match
656 >    against the metadata object name.
657 >
658 >    If true then the ObjectName is used as is without modification and matched
659 >    against the metadata object name. No attempt is made to remove double quotes.
660 >
661 > 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
662 >    with eoTrigger, these extract types can be used to select only Database Triggers,
663 >    or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
664 >
665 > 26. TIBXScript: If an exception occurs during the processing of a statement, the
666 >    statement separate character is now reset to the default (';').
667 >
668 > 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
669 >
670 > 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
671 >    a commit or reconnect statement and instead activated only when next SQL statement
672 >    is executed.
673 >
674 > 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
675 >
676 > 30. TIBXScript: case insensitive regex now used when matching statements instead of
677 >    converting statement to upper case.
678 >
679 > 31. TIBExtract: metadata comments now supported. New published property
680 >    IncludeMetaDataComments (default true). If true then metadata comments included
681 >    in extracted DDL. New Extract Object member eoComments. This may be used with
682 >    ExtractObject method to list all metadata comments.
683 >
684 > 32. TIBExtract: ListObjectNames method added.
685 >
686 > 33. Updated Database component editor to support additional connection string
687 >    types.
688 >
689 > IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
690 >
691 > NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
692 > AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
693 > RELEASE.
694 >
695 > NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
696 >
697 > 1. IBExtract: Identity columns - add additional check for null column for generator name.
698  
699   2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
700     The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
701 <   information). Values returned as a result of executing an Insert or Update statement
702 <   replace existing values in the current row for each corresponding column.
701 >   information). However, this is also a very useful mechanism for returning updated computed by
702 >   column values. Values returned as a result of executing an Insert or Update statement
703 >   replace existing values in the current row for each corresponding column.
704 >
705 >   Previously, if a dataset's select query included read only (computed by) fields then
706 >   an automatic row refresh was performed after an insert or update query had been processed,
707 >   irrespective of the setting of the "ForcedUpdates" property. This has changed such
708 >   that an automatic refresh is no longer performed if an insert or update query contains
709 >   a returning clause that updates one or more fields on the current row. A full row
710 >   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
711 >   field values and the select query contains read only fields. Use of Insert/update
712 >   returning should be significantly more efficient than executing a refresh query.
713 >
714 >   This behaviour change is intended to be backwards compatible and there should be no need to change
715 >   existing programs, other than to improve performance by using the new capability.
716  
717 < 3. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
717 > 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
718 >   they are called when the dataset row is being deleted, there is no value in
719 >   updating the current record from the query result. Instead, a new event handler
720 >   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
721 >   an OnDeleteReturning event handler is provided then it is called with the IResults returned
722 >   by the query. The event handler can then interrogate the query results and
723 >   perform whatever action is necessary. For example to confirm, to the user,
724 >   the deletion of a row with the returned values.
725 >
726 > 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
727 >   any Computed By or Identity Columns. The IBTables example has been updated to
728 >   illustrate the computation of the employee Full Name on update.
729 >
730 > 5. TIBTable: The GeneratorField property is now published.
731 >
732 > 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
733     When InsertSQL is generated, the Identity columns are not included in the list of values to
734     be inserted. A RETURNING clause is added to the insert statement to return the value of
735     each Identity column after the insert is executed.
736  
737 < 4. TIBGenerator: small performance improvement by not preparing query each time
738 <   a new number is generated.
737 > 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
738 >   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
739 >   Insert..Returning clause.
740  
741 < 5. TIBSQL: Free resources when transaction changed.
741 > 8. TIBGenerator: small performance improvement by not preparing query each time
742 >   a new value is generated.
743  
744 < 6. Property editor will now sync table name to a System Table when "Include System
745 <   Tables" is selected and the query is for a System Table.
744 > 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
745 >
746 > 10. Property editors will now sync table name to a System Table when "Include System
747 >    Tables" is selected and the query is for a System Table.
748 >
749 > 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
750 >    values are no longer converted to milliseconds from TDateTime and then back again
751 >    to TDateTime (the conversion to milliseconds is the default TDataset approach).
752 >
753 > 12. Property Editors handling of Stored Procedures.
754 >    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
755 >      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
756 >      query).
757 >    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
758 >
759 > 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
760 >    can be used to select a package. If non-empty, the stored procedure name is
761 >    expected to be a stored procedure defined in the specified package and the
762 >    generated SQL will be as required for a stored procedure located in a package.
763 >
764 > 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
765 >    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
766 >    which a stored procedure can be selected. With no package name selected, non-package
767 >    stored procedures are listed.
768 >
769 > 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
770 >    for password on reconnect.
771 >
772 > 16. TIBDatabase: use IAttachment for connection default character set id, code page
773 >    and character set name.
774 >
775 > 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
776 >    DB info lookups"
777 >
778 > 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
779 >
780 > 19. Add a property Editor for TIBUpdate.RefreshSQL.
781 >
782 > 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
783 >    parameters. This stops an exception being raised when the field cannot be
784 >    located in the record buffer.
785 >
786 > 21. Property Editors now automatically include System Tables when opened and when the query table
787 >    is a System Table.
788 >
789 > 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
790 >    This avoids errors due to a stale SQRB or SRB being used for the next query.
791 >
792 > 23. IBServices: Service attach parameters now include "expected_db". This is used to
793 >    add the SPB item isc_spb_expected_db. This names a database using
794 >    an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
795 >    database. examples/services re-written to illustrate use of "expected_db".
796 >
797 > 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
798 >    This avoids truncated backups when the server returns a timeout (busy) response.
799 >
800 > 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
801 >
802 > 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
803 >    databasenames. These are respectively expanded to the local system's temp directory
804 >    (including trailing delimiter) or to a prescribed data directory (including
805 >    trailing delimiter). Under Unix systems the data directory is a hidden directory
806 >    in the user's home directory. The hidden directory name is either the string returned
807 >    from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
808 >    Under Windows, the directory is the same as the Data Directory as decribed
809 >    above but instead prefixed by the User's application data path. These may be
810 >    used to improve application portability for Personal Databases.
811 >
812 > 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
813 >    this has not worked for a long time and is not useful either. FieldDefs should be
814 >    managed using the Fields Editor as with any other dataset. To access the fields
815 >    editor for a TIBTable component, double click on the component. The fields editor
816 >    is then displayed.
817 >
818 > 28. TIBDatabaseInfo: new properties/function
819 >     * DateDBCreated (returns date/time database created)
820 >     * TransactionCount (returns no. of active transactions)
821 >     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
822 >     * PagesFree (Firebird 3 or later)
823 >     * PagesUsed (Firebird 3 or later)
824 >     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
825 >     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
826 >
827 > 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
828 >
829 > 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
830 >
831 > 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
832 >    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
833 >
834 > 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
835 >    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
836 >    firing during backup and restore.
837 >
838 > 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
839 >    for verbose output using the new property "StatisticsRequested".
840 >    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
841 >
842 > 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
843 >
844 > 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
845 >    palette. This uses the online validation feature added in Firebird 2.5. The
846 >    services's properties enable inclusion/exclusion of tables and indexes using
847 >    regular expressions. See.
848 >    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
849 >
850 > 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
851 >    option on a database.
852 >
853 > 37. TIBCustomService: Assign method implemented to allow copying of service login
854 >    context between service API components. "Detach" method now only detaches
855 >    service when last reference to the service interface detaches. Tidy up of
856 >    code for SetActive and Attach methods including password hiding.
857 >
858 > 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
859 >    and used to determine the auth method and protocol used for the connection.
860 >
861 > 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
862 >    a Create Database Statement generated by IBX.
863 >
864 > 40. All IBServices now have an additional published property "PortNo". This may
865 >    be set to a non-standard port number when necessary. If zero then the default
866 >    port number is used.
867 >
868 > 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
869 >    and not just the mouse.
870 >
871 > 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
872 >
873 > 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
874 >    image index and selected image index for each node to be set from a database field.
875 >
876 > 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
877 >    then database schema includes grants to all users. If not present then the
878 >    only user grants included are those to User PUBLIC.
879 >
880 > 45. TIBTreeView: performance improvement. When expanding include both expanded node
881 >    and child nodes in dataset.
882  
23 7. Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
24   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
25   Insert..Returning clause
883  
884   IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
885  

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