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Revision 410 by tony, Thu Jun 22 13:52:39 2023 UTC

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1 + IBX Change Log  version (2.6-0 Build 13976) Thu, 22 Jun 2023 13:49:22 +0100
2 +
3 + NOTE: THIS VERSION RE-WRITES THE INTERNAL BUFFER MANAGER AND SHOULD BE CONSIDERED
4 +      AS BETA SOFTWARE. EVEN THOUGH IT HAS PASSED ALL REGRESSION TESTS, IT CANNOT
5 +      BE ASSUMED TO BE PRODUCTION READY UNTIL WIDER USE. PLEASE REPORT ANY
6 +      ISSUES TO support@mwasoftware.co.uk
7 +
8 + 1. Complete rewrite of internal buffer management in order to improve performance
9 +   and maintainability. Highlights:
10 +
11 +   * Extending the size of the buffer pool no longer has to copy the entire record
12 +     cache. Instead, a new extent is simply added to the buffer pool.
13 +   * A memory to memory copy of each display buffer now is avoided when scolling the
14 +     dataset.
15 +   * A separate set of buffers is now used for calculated fields. This avoids
16 +     having to keep copies of calculated field values in the buffer cache.
17 +   * Compact bitmaps are used to record null status and need to refresh in each
18 +     buffer.
19 +   * Display buffer type changed from PChar to TRecordBuffer in line with change of
20 +     buffer type in FCL-DB.
21 +
22 + 2. TIBUpdateSQL: changes to SQL text will close linked dataset if open. This is
23 +   to ensure same behaviour as TIBDataset, TIBTable and TIBStoredProcedure.
24 +
25 + 3. TField Provider Flags: pfRefreshOnInsert and pfRefreshOnUpdate are now supported.
26 +   If either or both of these flags are set at design time (using the fields editor)
27 +   then this forces a row refresh on respectively insert or update, or both, when the
28 +   corresponding field is not present in an SQL RETURNING clause.
29 +
30 + 4. TIBCustomDataset.FieldDefsFromQuery moved to a helper class (TFieldDefsMaker) in order to improve
31 +   maintainability and readability and to add identification of primary key fields.
32 +
33 + 5. TIBQuery, TIBDataset and TIBTable. Traditionally, IBX has implemented the Refresh method
34 +   as a refresh of the current row. However, this is different behaviour to that described
35 +   in the FPC documentation for TDataset.Refresh which is described as "refetches the data in
36 +   the dataset from the underlying database, and attempts to reposition the cursor on
37 +   the same record as it was". IBX now complies with the FPC definition of Refresh.
38 +
39 + 6. A progammatic Row Refresh should no longer be required.
40 +   Use Insert/Update... returning to refresh any fields that may change following an
41 +   insert or update i.e. Identify fields on Insert only, Computed By, Blob and array fields
42 +   on both. If there are any other fields (e.g. updated by triggers) set the appropriate ProviderFlag
43 +   for the field at Design Time to force a row refresh if not in the returning clause.
44 +
45 + 7. It should now be possible to insert a row into an empty unidirectional dataset.
46 +
47 + 8. New TIBQuery, TIBDataSet and TIBTable property: BufferChunksInFirstBlock (default 50).
48 +   This gives the number of buffers in the initial block for the buffer pool in
49 +   bi-directional datasets. BufferChunks (default 1000) gives the number of buffers
50 +   in subsequent buffer pool blocks. This avoids large and mostly unused memory allocations
51 +   for small datasets.
52 +
53 + IBX Change Log  version (2.5-1 Build 13927) Tue, 6 Dec 2022 23:13:00 +0000
54 +
55 + 1. IBCustomDataset: avoid problem with additions to TFieldType by using a subset instead.
56 +
57 + 2. TIBDynamicGrid: change DrawCellText declaration to comply with laz 2.3.0
58 +
59 + 3. TIBArrayGrid: change DrawCellText declaration to comply with laz 2.3.0
60 +
61 + IBX Change Log  version (2.5-0 Build 13868) Fri, 29 Jul 2022 09:52:01 +0100
62 +
63 + 1. TIBTransaction: new properties
64 +    property TransactionID: integer read GetTransactionID;
65 +    property IsReadOnly: boolean read GetIsReadOnly;
66 +    {published}
67 +    property TransactionName: string read FTransactionName write SetTransactionName;
68 +
69 + 2. IBCustomDataset: per row blob and array buffer cached clear before processing
70 +   Insert or Update...Returning. This allows blobs and arrays to be returned
71 +   by the statement.
72 +
73 + 3. TSQLXMLReader moved from IBXScript to package fbintf unit IBUtils.
74 +
75 + 4. TransactionName initialised to a newly generated GUID if empty.
76 +
77 + 5. New unit: IBJournal. This provides the TIBJournal component which is a wrapper
78 +   for the fbintf package's journaling capability. TIBJournal is used to set the
79 +   file path and filename for the journal file and to Enabled (start journaling) and
80 +   disable (stop journaling). See fbintf/doc/README.ClientSideJournaling.pdf for
81 +   more information, and comments in IBJournal.pas.
82 +
83 + 6. TIBDatabase.InternalTransaction is now a read only transaction.
84 +
85 + 7. Bug fix: blob id no longer set to null on update when blob has not been
86 +   retrieved.
87 +
88 + 8. Row auto refreshed on update/insert if blob or array field updated and field
89 +   not in a returning clause.
90 +
91 + 9. ColumnCount moved from record buffer header to a single per dataset count. Reduces
92 +   buffer overhead and avoids problem when refresh query has a different column
93 +   count to select query i.e. incorrectly changing number of columns.
94 +
95 + 10. IBExtract: support added for UDR Functions, Procedure and Trigger declarations.
96 +
97 + 11. TIBDatabaseInfo. New property FirebirdVersion. This returns the current Firebird version
98 +    string. Note that the Version property returns an InterBase compatible version string.
99 +
100 + 12. IBExtract: ensure sql identifiers returned as a LIST are always quoted.
101 +
102 + IBX Change Log  version (2.5-0 Build 12933) Mon, 29 Nov 2021 14:59:54 +0000
103 +
104 + 1. IBCustomDataset: Modify TISQL component now defaults to GoToFirstRecordOnExecute := true.
105 +   This is for compatibility with Firebird 5 where Update...Returning can return
106 +   a cursor.
107 +
108 + IBX Change Log  version (2.4-3 Build 12886) Sat, 23 Oct 2021 14:58:30 +0100
109 +
110 + 1. Add try-..except check when initially loading library in IDE. This should
111 + ensure that IDE continues to load even when a failure occurs in IBX load
112 + library.
113 +
114 + 2. IBXScript: now recognises a CASE...END block within a stored procedure and
115 +   hence will correctly detect end of the outer containing block when the block
116 +   contains a SELECT ... CASE ... END construct.
117 +
118 + 3. IBExtract: some further tidying up to remove extraneous white space.
119 +
120 + 4. IBCustomDataSet: DefaultFieldClasses array declaration updated to avoid compile time
121 +   errors when extra elements are added to DB.TFieldType.
122 +
123 + 5. IBUpdate: updated to reflect changes to ISQLParam.
124 +
125 + 6. IBXScript: now correctly parses a DECLARE statement which includes a quoted string.
126 +
127 + 7. IBExtract: for ODS >=13, increment generator value by one for ALTER SEQUENCE statement.
128 +
129 + 8. IBSQL: Support for scrollable cursors added (note: local databases only)
130 +
131 + IBX Change Log  version (2.4-2 Build 12773) Mon, 23 Aug 2021 11:59:42 +0100
132 +
133 + 1. TIBDatabaseInfo: review and tidy-up of property types. Most widen to int64 with the
134 +   exception of those defined to be one byte wide e.g. DBImplementationNo.
135 +
136 + 2. TIBSQL: Batch Update/Insert support added.
137 +
138 + 3. TIBStoredProc: when generating the SQL, the value of the StoredProcName property
139 +   is no longer automatically converted to upper case when it is syntactically a
140 +   SQL Identifier. This is to support the use of stored procedures defined e.g.
141 +   as CREATE PROCEDURE "iCASE".
142 +
143 +   There could be a backwards compatibility issue when the StoredProcName was entered
144 +   manually at design time. That is not selected from the drop down list. If the
145 +   StoredProcName is entered in mixed case and the procedure was declared e.g. as
146 +   CREATE PROCEDURE iCASE, then the SQL generation will be incorrect. You should
147 +   ensure that the value of the StoredProcName is all upper case, unless it was
148 +   declared under dialect 3 and explicitly as mixed case (i.e. delimited by double
149 +   quotes).
150 +
151 +   Note that when a stored procedure name was declared delimited in double quotes,
152 +   as in the first example above, the value of the StoredProcName property must not
153 +   include the delimiters (double quotes).
154 +
155 + 4. IBXUpgradeConfFile: an exception is now raised if a patch file specified in
156 +   upgrade.conf was not found. This replaces silently ignoring the problem.
157 +
158 + 5. TIBLocalDBSupport: new property "SectionHeaderTemplate". This defaults to
159 +   'Version.%.3d' and is used to generate the section header names (for a given
160 +   version no.) in the upgrade.conf file.
161 +
162 + IBX Change Log  version (2.4-1 Build 12550) Wed, 23 Jun 2021 13:59:14 +0100
163 +
164 + 1. -c command line option added to fbsql example program. Used to set connection
165 +   character set.
166 +
167 + IBX Change Log  version (2.4-0 Build 12543) Mon, 22 Feb 2021 11:00:08 +0000
168 +
169 + 1. Firebird 4 support added.
170 +
171 + 2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
172 +   extended precision NUMERIC fields are supported.
173 +
174 + 3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
175 +
176 + 4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
177 +   and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
178 +
179 + 5. IBExtract now supports FB4 enhancements:
180 +   - new data types as above
181 +   - Identity column extensions
182 +   - Default user role
183 +   - SQL Security clause for Database, Tables, Procedures, Functions and Triggers
184 +   - Internal Functions
185 +
186 + 6. IBExtract: new event: OnExtractLines.
187 +
188 + 7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
189 +
190 + 8. IBXServices: Server version no. parsing now allows any letter before major version number
191 +   and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
192 +
193 + 9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
194 +   format for rendering a time zone.
195 +
196 + 10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
197 +     to convert TIME WITH TIME ZONE data type values to and from GMT.
198 +
199 + 11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
200 +    IIBGUIInterface and IIBTimerInf respectively.
201 +
202 + 12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
203 +    now accessible as properties of TIBDatabase and TIBTransaction respectively.
204 +
205 + 13. String Fields: when a fixed character with (CHAR) field is returned, it is now
206 +    truncated to its fixed character width rather than being right padded with
207 +    white space to the maximum data size.
208 +
209 + 14. TIBTable.Empty table. In additional to deleting all records in the underlying
210 +    table, the internal buffers are now also flushed ensuring that the TIBTable is
211 +    also empty.
212 +
213 + 15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
214 +
215 + 16. TIBXControlService descendents: DatabaseName may now be set using a database
216 +    connect string. The database name is extracted from the connect string.
217 +
218 + 17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
219 +
220 + 18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
221 +
222 + 19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
223 +    not being present as required.
224 +
225 + 20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
226 +    version that can be customised to work with other database drivers.
227 +
228 + 21. ISQLMonitor: use platform specific LineEnding to delimit messages. Avoids
229 +    unnecessary CR at end of line on Unix platforms.
230 +
231 + 22. ISQLMonitor: Unix: Default semaphore timeout increased from 1 second to 10
232 +    seconds in order to reduce risk of message loss.
233 +
234 + 23. ISQLMonitor: read and write count statistics now available via:
235 +      property TIBSQLMonitor.ReadCount;
236 +      IIBSQLMonitorHook.GetWriteCount: integer;
237 +
238 + 24. ISQLMonitor tidy up and unit split. IPC functions moved to new unit IBIPC.
239 +
240 + IBX Change Log  version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
241 +
242 + 1.  TIBStringField: when a string value is read from a dataset buffer, if the
243 +    number of UTF8 characters exceeds the string size then string is truncated
244 +    to the maximum string size. This is  usually a problem with fixed width columns
245 +    right padded with white space.
246 +
247 + 2.  SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
248 +    If SQLFiltered is set then when a dataset is opened, each line in the
249 +    SQLFilterParams property is assumed to be a SQL condition clause and
250 +    ANDed into the Where clause of the SQL Select statement provided as a
251 +    dataset property. Each such SQL condition thus acts as an additional filter
252 +    on the dataset.
253 +
254 + 3.  The Filtered property inherited from TDataset is no longer used for SQL (server
255 +    side filters).
256 +
257 + 4. IBLookupComboEditBox: Selection should no longer reset to start of text when
258 +   text matches complete entry.
259 +
260 + 5. TIBDataLink: Detail Dataset params not refreshed unless both master and detail
261 +   dataset are active (avoids risk of access violation if master is inactive)
262 +
263 + 6. TIBEvents: Registered property can now be set at design time even if database not open
264 +
265 + 7. TIBEvents: component now correctly re-initialised after call to UnregisterEvents.
266 +   This should prevent "spillover" of events between sessions.
267 +
268 + 8. TIBCustomDataset: GetNextRecord now called when reseting to first record of a unidirectional dataset.
269 +   This should ensure that the internal buffer is set up correctly and avoids
270 +   a duplicate initial row.
271 +
272 + 9. TIBStringField: DataSize now given as byte size of string less trailing any zero character.
273 +   That is, the DataSize should be the field size * character set width. The
274 +   value returned by DataSize is now the same as the Dataset buffer size reserved
275 +   for the field.
276 +
277 + 10. IBExtract: Tidyup of SQL generation. Avoid unnecessary double quotes.
278 +
279 + 11. TIBCustomDataset: Add checks on buffer sizes when copying data from row to field buffer
280 +    and vice-versa. This may result in an exception being raised (correctly) for
281 +    older programs when using dataset fields added to a form and the database has been
282 +    upgraded. For example, computed fields can change from 32-bit to 64-bit integers.
283 +    In such cases, the field needs to be deleted in the IDE fields editor and then
284 +    added back in.
285 +
286 + 12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
287 +    false if query contains only white space and not just empty.
288 +
289 + 12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
290 +    should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
291 +    is cancelled.
292 +
293 + 13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
294 +    called on a null field.
295 +
296 + 14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
297 +    results in an empty dataTC86                Client side Filtered Dataset    1       X
298 + set.
299 +
300 + 15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
301 +    a cached update is applied and an exception is raised.
302 +
303 + 16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
304 +
305 + 17. Console Mode Local Database support: backup/restore should now work correctly.
306 +
307 + 18. Local Database Support: if an upgrade fails, a downgrade is now performed if
308 +    possible and an exception raised.
309 +
310 + 19. MinimumVersionNo added to Local Database Support. Database will not open if
311 +    below this version no. and upgrade not possible.
312 +
313 + IBX Change Log  version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
314 +
315 + 1.  TIBXDataSet and Generators: Generator Names that are not all upper case or
316 +    not SQL Identifiers are now supported.
317 +
318 + 2.  TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
319 +    passed to the Firebird engine for execution.
320 +
321 + 3.  TIBDataSet: Unidirectional datasets now give an error message if an attempt
322 +    is made to scroll back.
323 +
324 + 4.  New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
325 +
326 + 5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
327 +   only enclosed in double quotes in SQL dialect 3 and when it needs to be.
328 +
329 + 6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
330 +   validated. If no match is found in the list of field names and the database has
331 +   been opened in SQL Dialect 3, then the ListField Name is converted to upper case
332 +   if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
333 +
334 + 7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
335 +   with fpc 3.2.
336 +
337 + IBX Change Log  version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
338 +
339 +
340 + 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
341 +   and is used to override the default settings in the client side "firebird.conf" This
342 +   includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
343 +   Each line of the string list should be a setting in the same format as "firebird.conf".
344 +   For example "WireCompression = true" in order to request wire compression on the client side.
345 +
346 +   Note: explicit settings in the client side "firebird.conf" appear to take precedence
347 +   over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
348 +   also require a compatible setting in the server side "firebird.conf". For example
349 +   "WireCompression = true" must also be set in the server's "firebird.conf" for wire
350 +   compression to be used.
351 +
352 +   Whether or not WireCompression or WireCrypt are in use can be checked using the information
353 +   returned with the Client/Server protocol version. See ibx/examples/dbadmin and
354 +   ibx/examples/dbinfo for examples of how to display this information.
355 +
356 + 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
357 +   is a "convenience" property. If set the "WireCompression=true" is added to the
358 +   ConfigOverrides. If unchecked then this setting is removed.
359 +
360 + 3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
361 +   not "INT64".
362 +
363 + 4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
364 +   These are:
365 +    property TimestampFormat: string;
366 +    property DateFormat: string;
367 +    property TimeFormat: string;
368 +
369 +   Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
370 +   DATETIME and TIME. The format strings use the standard FPC date/time format
371 +   characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
372 +
373 +   If any of the above properties are set to an empty string, then the locale default
374 +   is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
375 +   locale default is extended by appending '.zzz' to include milliseconds.
376 +
377 +   TIBCSVDataOut by default sets these properties to the empty string, while the other
378 +   two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
379 +
380 + 5. New published property for TIBCSVDataOut:
381 +     property QuoteStrings: boolean (default true)
382 +
383 +   If false then strings are unquoted, otherwise, the QuoteChar property value is
384 +   used to delimit each and every string in the output.
385 +
386 + 6. New published properties for TIBCSVDataOut:
387 +    property FieldSeparator: string;
388 +    property HeaderSeparator: string;
389 +
390 +   Respectively, these provide the separator character(s) used to separate fields
391 +   in data and header rows. Both default to ','.
392 +
393 + 7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
394 +    TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
395 +    property OnFormatTextString;
396 +
397 +   This event handler can be used to process text strings before they are included
398 +   in the output e.g. to replace unprintable characters with alternative strings.
399 +   This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
400 +
401 + 8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
402 +   Uses "FindParam" if in order to find out if a parameter with a given name exists
403 +   and without raising and exception if it does not.
404 +
405 + 9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
406 +   consistency with SQL queries.
407 +
408 + 10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
409 +    When true, SQL statement parameter names are parsed case sensitive. Note for
410 +    TIBDataSet only applies to Select query.
411 +
412 + 11. IBEvents: removing a TIBEvent component from a form should no longer result in
413 +    an IDE exception.
414 +
415 + 12. LocalDBSupport: initial database creation should now work correctly
416 +    when the schema source is an sql file.
417 +
418 + 13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
419 +    when defined, this handler will be called by the internal TIBXScript during
420 +    initial database creation when the schema source is an sql file and may be used
421 +    to provide a visual indication of progress in console mode.
422 +
423 + 14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
424 +    to true while a new local database is being created and its schema populated.
425 +    Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
426 +    when the database is disconnected/connected during the create DB procedure.
427 +
428 + 15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
429 +    are now always ignored and replaced by the user name and password provided as
430 +    the login parameters for the TIBDatabase referenced from the TIBXScript. The
431 +    IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
432 +    completely ignored if this property is true.
433 +
434 + 16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
435 +    to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
436 +    ImageIndex and SelectImageIndex values on AddNode.
437 +
438 + 17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
439 +    read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
440 +    the same database connection.
441 +
442 + 18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
443 +    if provided, this should be an conditional SQL expression suitable for
444 +    including in an SQL Select statement "where" clause. If non-empty and the
445 +    "Filtered" property is true then the SQL expression provided as the value of
446 +    the "Filter" property is "ANDed" with any existing condition statement
447 +    in the SQL statement's "Where" clause.
448 +
449 +    If the "Filter" property is set at run time, the "Filtered" property is true
450 +    and the dataset is already open, then the dataset is closed and re-opened automatically.
451 +
452 +    The "Filter" condition may include IBX style parameters. In which case, their
453 +    value must be set by the dataset's "OnBeforeOpen" event handler.
454 +
455 +    This is a public property for TIBDataSet and TIBQuery query and intended for
456 +    use at run time.
457 +
458 +    Note: The property is a published property of TIBTable. The TIBTable functionality
459 +    is unaffected by this change.
460 +
461 + IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
462 +
463 + 1. Remove need to check for IsMultiThread by providing access to GUI timers via
464 +   IBGUIInterface. Note: master/detail delay timer does not apply to console
465 +   mode apps.
466 +
467 + 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
468 +   statement. This avoids problems if "Execute Block" is used as the Query.
469 +
470 + 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
471 +   internal SQL tokeniser routines.
472 +
473 + 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
474 +   as a select statement, with or without CTEs.
475 +
476 + 5. IBSQLParser: parser now recognises the "ROWS" clause.
477 +
478 + 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
479 +   internal SQL tokeniser routines.
480 +
481 + 7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
482 +    being raised for valid set statements processed by a data formatter.
483 +
484 + 8. New published property for TIBDatabase and TIBXServicesConnection. This is
485 +   FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
486 +   the path of the Firebird Library used by the database/services connection.
487 +
488 + 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
489 +   is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
490 +   services connection.
491 +
492 + 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
493 +   or param name is not a valid SQL identifier.
494 +
495 + 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
496 +    view of whether the text box should be editable when no DataSource is specified.
497 +    TIBLookupComboEditBox has been updated to workaround this problem. As long as
498 +    ReadOnly is false, the text box is editable when no DataSource is specified.
499 +
500 + 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
501 +    the FBLIB environment variable. If you do not want to permit this then you
502 +    must modify the Register procedure in the design/IBDBReg.pas unit to remove
503 +    this setting.
504 +
505 + IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
506 +
507 + 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
508 +   Utf8EscapeControlChars
509 +
510 + IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
511 +
512 + IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
513 + all previous copies of the IBX source code tree before installing this release.
514 +
515 + The IBX packages used by most users have not changed, with one exception. The
516 + IBServices unit has been moved to the package iblegacyServices.lpk. To continue
517 + to use the IBServices unit in your applications, please add the iblegacyServices
518 + to the list of dependencies. To do this, open the Project Inspector and select
519 + Add->New Requirement and select "ibLegacyServices" from the list of available
520 + packages.
521 +
522 + 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
523 +   the IBServices unit providing what is intended to be a clearer and easier to
524 +   use set of IB Services components. See Chapter 10 of the IBX User Guide for
525 +   more information and the guide to "Firebird Service Management Using IBX".
526 +   As indicated above, the legacy services components are still available and
527 +   provided in a separate package. There is no need to update working applications
528 +   using the older versions except for an additional package dependency.
529 +
530 + 2. The IBX packages and source code tree have been re-organised in an attempt to
531 +   finally get rid of the "duplicate ppu" warnings. This re-organisation should
532 +   not affect existing users. Section 2.3 of the IBX User Guide describes the
533 +   new set of IBX packages.
534 +
535 + 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
536 +   updated to use the new Services API components.
537 +
538 + 4. The iblocal package has been updated to use the new Services API components.
539 +
540 + 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
541 +   TIBXSecurityService. It had been wrongly classified in the previous version
542 +   as a per database configuration item. It is global to a server and hence
543 +   correctly positioned as part of the Security Package. In the DBAdmin example,
544 +   the setting has moved to the mappings page.
545 +
546 + 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
547 +   are ignored.
548 +
549 + 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
550 +   closed before the database is dropped. Before and After Disconnect event handlers
551 +   are also fired.
552 +
553 + 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
554 +   is started and not just the first time.
555 +
556 + 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
557 +   depenendency with comp type.
558 +
559 + 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
560 +
561 + 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
562 +    then this is recognised and not ignored.
563 +
564 + 12. TIBDataSet, TIBQuery, TIBTable: additions:
565 +    function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
566 +    function GetPerfStatistics(var stats: TPerfCounters): boolean;
567 +    property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
568 +
569 +    GetRowsAffected returns the affected row counts from the last insert/update/delete
570 +    if EnableStatistics = true then GetPerfStatistics returns the current stats
571 +    counters for the select query. Note: stats accumulate after each fetch from
572 +    the database. To get total query cost after open, call the "Last" method
573 +    and then GetPerfStatistics.
574 +
575 +    See ibx/examples/consolemode for an example of the use of GetPerfStatistics
576 +
577 + 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
578 +    in parenthesises.
579 +
580 + 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
581 +    SQL identifiers are always delimited by double quotes. If false, then they are
582 +    only delimited if the identifier is a reserved word, contains lower case or special
583 +    characters. Set this property to true to retain previous behaviour.
584 +
585 + 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
586 +    are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
587 +
588 + 16. TIBDataSet, TIBQuery, TIBTable: addition:
589 +       property MasterDetailDelay: integer {defaults to zero}
590 +
591 +    When non-zero and the dataset is a detail table referencing a master table
592 +    through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
593 +    then a synchronisation delay is added (in milliseconds) between the master
594 +    row changing and the detail dataset being re-opened. If the master dataset
595 +    is scrolled before the delay expires then the delay is reset. This can be used
596 +    to avoid performance overheads when scrolling through a large master dataset.
597 +
598 +    Note: uses fptimer and hence requires a thread manager. Under Linux the
599 +    chreads unit must be included in your project. TTimer is not used in order
600 +    to avoid an LCL dependency. Requires FPC 3.0.2 or later.
601 +
602 + 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
603 +    with Extract Option eoDatabase.
604 +
605 + 18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
606 +    When a deLayoutChanged event is reported on the ListSource dataset, the
607 +    combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
608 +    relationship with the control's datasource (master).
609 +
610 + 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
611 +
612 + 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
613 +    stubs. Pedantic fix really, as procedures output in dependency order anyway.
614 +
615 + 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
616 +    DDL (Firebird 3 and later only).
617 +
618 + 22. TIBLookupComboBox Autocomplete Fixes:
619 +    i. Only appended text is now selected after autocomplete.
620 +    ii. Uppercase keys no longer ignored for autocomplete.
621 +    iii. Retain Prefix case is now honoured correctly.
622 +    iv. When a DataSource is assigned, typing after autocomplete now extends prefix
623 +        before autocomplete performed. i.e. behaviour now the same as when
624 +        no DataSource assigned.
625 +
626 + 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
627 +    between SQL statements.
628 +
629 + 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
630 +    ObjectNames are converted to upper case before matching against metadata object
631 +    names, unless the objectname is delimited by double quotes, in which case, the
632 +    double quotes are removed and the remaining string is used (unmodified) to match
633 +    against the metadata object name.
634 +
635 +    If true then the ObjectName is used as is without modification and matched
636 +    against the metadata object name. No attempt is made to remove double quotes.
637 +
638 + 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
639 +    with eoTrigger, these extract types can be used to select only Database Triggers,
640 +    or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
641 +
642 + 26. TIBXScript: If an exception occurs during the processing of a statement, the
643 +    statement separate character is now reset to the default (';').
644 +
645 + 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
646 +
647 + 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
648 +    a commit or reconnect statement and instead activated only when next SQL statement
649 +    is executed.
650 +
651 + 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
652 +
653 + 30. TIBXScript: case insensitive regex now used when matching statements instead of
654 +    converting statement to upper case.
655 +
656 + 31. TIBExtract: metadata comments now supported. New published property
657 +    IncludeMetaDataComments (default true). If true then metadata comments included
658 +    in extracted DDL. New Extract Object member eoComments. This may be used with
659 +    ExtractObject method to list all metadata comments.
660 +
661 + 32. TIBExtract: ListObjectNames method added.
662 +
663 + 33. Updated Database component editor to support additional connection string
664 +    types.
665 +
666 + IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
667 +
668 + NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
669 + AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
670 + RELEASE.
671 +
672 + NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
673 +
674 + 1. IBExtract: Identity columns - add additional check for null column for generator name.
675 +
676 + 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
677 +   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
678 +   information). However, this is also a very useful mechanism for returning updated computed by
679 +   column values. Values returned as a result of executing an Insert or Update statement
680 +   replace existing values in the current row for each corresponding column.
681 +
682 +   Previously, if a dataset's select query included read only (computed by) fields then
683 +   an automatic row refresh was performed after an insert or update query had been processed,
684 +   irrespective of the setting of the "ForcedUpdates" property. This has changed such
685 +   that an automatic refresh is no longer performed if an insert or update query contains
686 +   a returning clause that updates one or more fields on the current row. A full row
687 +   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
688 +   field values and the select query contains read only fields. Use of Insert/update
689 +   returning should be significantly more efficient than executing a refresh query.
690 +
691 +   This behaviour change is intended to be backwards compatible and there should be no need to change
692 +   existing programs, other than to improve performance by using the new capability.
693 +
694 + 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
695 +   they are called when the dataset row is being deleted, there is no value in
696 +   updating the current record from the query result. Instead, a new event handler
697 +   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
698 +   an OnDeleteReturning event handler is provided then it is called with the IResults returned
699 +   by the query. The event handler can then interrogate the query results and
700 +   perform whatever action is necessary. For example to confirm, to the user,
701 +   the deletion of a row with the returned values.
702 +
703 + 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
704 +   any Computed By or Identity Columns. The IBTables example has been updated to
705 +   illustrate the computation of the employee Full Name on update.
706 +
707 + 5. TIBTable: The GeneratorField property is now published.
708 +
709 + 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
710 +   When InsertSQL is generated, the Identity columns are not included in the list of values to
711 +   be inserted. A RETURNING clause is added to the insert statement to return the value of
712 +   each Identity column after the insert is executed.
713 +
714 + 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
715 +   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
716 +   Insert..Returning clause.
717 +
718 + 8. TIBGenerator: small performance improvement by not preparing query each time
719 +   a new value is generated.
720 +
721 + 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
722 +
723 + 10. Property editors will now sync table name to a System Table when "Include System
724 +    Tables" is selected and the query is for a System Table.
725 +
726 + 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
727 +    values are no longer converted to milliseconds from TDateTime and then back again
728 +    to TDateTime (the conversion to milliseconds is the default TDataset approach).
729 +
730 + 12. Property Editors handling of Stored Procedures.
731 +    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
732 +      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
733 +      query).
734 +    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
735 +
736 + 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
737 +    can be used to select a package. If non-empty, the stored procedure name is
738 +    expected to be a stored procedure defined in the specified package and the
739 +    generated SQL will be as required for a stored procedure located in a package.
740 +
741 + 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
742 +    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
743 +    which a stored procedure can be selected. With no package name selected, non-package
744 +    stored procedures are listed.
745 +
746 + 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
747 +    for password on reconnect.
748 +
749 + 16. TIBDatabase: use IAttachment for connection default character set id, code page
750 +    and character set name.
751 +
752 + 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
753 +    DB info lookups"
754 +
755 + 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
756 +
757 + 19. Add a property Editor for TIBUpdate.RefreshSQL.
758 +
759 + 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
760 +    parameters. This stops an exception being raised when the field cannot be
761 +    located in the record buffer.
762 +
763 + 21. Property Editors now automatically include System Tables when opened and when the query table
764 +    is a System Table.
765 +
766 + 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
767 +    This avoids errors due to a stale SQRB or SRB being used for the next query.
768 +
769 + 23. IBServices: Service attach parameters now include "expected_db". This is used to
770 +    add the SPB item isc_spb_expected_db. This names a database using
771 +    an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
772 +    database. examples/services re-written to illustrate use of "expected_db".
773 +
774 + 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
775 +    This avoids truncated backups when the server returns a timeout (busy) response.
776 +
777 + 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
778 +
779 + 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
780 +    databasenames. These are respectively expanded to the local system's temp directory
781 +    (including trailing delimiter) or to a prescribed data directory (including
782 +    trailing delimiter). Under Unix systems the data directory is a hidden directory
783 +    in the user's home directory. The hidden directory name is either the string returned
784 +    from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
785 +    Under Windows, the directory is the same as the Data Directory as decribed
786 +    above but instead prefixed by the User's application data path. These may be
787 +    used to improve application portability for Personal Databases.
788 +
789 + 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
790 +    this has not worked for a long time and is not useful either. FieldDefs should be
791 +    managed using the Fields Editor as with any other dataset. To access the fields
792 +    editor for a TIBTable component, double click on the component. The fields editor
793 +    is then displayed.
794 +
795 + 28. TIBDatabaseInfo: new properties/function
796 +     * DateDBCreated (returns date/time database created)
797 +     * TransactionCount (returns no. of active transactions)
798 +     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
799 +     * PagesFree (Firebird 3 or later)
800 +     * PagesUsed (Firebird 3 or later)
801 +     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
802 +     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
803 +
804 + 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
805 +
806 + 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
807 +
808 + 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
809 +    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
810 +
811 + 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
812 +    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
813 +    firing during backup and restore.
814 +
815 + 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
816 +    for verbose output using the new property "StatisticsRequested".
817 +    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
818 +
819 + 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
820 +
821 + 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
822 +    palette. This uses the online validation feature added in Firebird 2.5. The
823 +    services's properties enable inclusion/exclusion of tables and indexes using
824 +    regular expressions. See.
825 +    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
826 +
827 + 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
828 +    option on a database.
829 +
830 + 37. TIBCustomService: Assign method implemented to allow copying of service login
831 +    context between service API components. "Detach" method now only detaches
832 +    service when last reference to the service interface detaches. Tidy up of
833 +    code for SetActive and Attach methods including password hiding.
834 +
835 + 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
836 +    and used to determine the auth method and protocol used for the connection.
837 +
838 + 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
839 +    a Create Database Statement generated by IBX.
840 +
841 + 40. All IBServices now have an additional published property "PortNo". This may
842 +    be set to a non-standard port number when necessary. If zero then the default
843 +    port number is used.
844 +
845 + 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
846 +    and not just the mouse.
847 +
848 + 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
849 +
850 + 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
851 +    image index and selected image index for each node to be set from a database field.
852 +
853 + 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
854 +    then database schema includes grants to all users. If not present then the
855 +    only user grants included are those to User PUBLIC.
856 +
857 + 45. TIBTreeView: performance improvement. When expanding include both expanded node
858 +    and child nodes in dataset.
859 +
860 +
861 + IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
862 +
863 + 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
864 +   changes.
865 +
866 + 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
867 +   Bug could result in truncated multi-byte character set values.
868 +
869 + 3. Changes consequential on moving fbintf character set utility functions from
870 +   IFirebirdAPI to IAttachment.
871 +
872 + 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
873 +
874 + 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
875 +   results in autocomplete ignoring prefix text.
876 +
877 + 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
878 +   entering a new name into the text box.
879 +
880 + 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
881 +   Firebird rather than recomputing it.
882 +
883 + 8. Property Editor positioning tidy up: All IBX Property editors should now be
884 +   screen centre. Previously some were "poDesigned" which may be inappropriate
885 +   for multi monitor desktops.
886 +
887 + 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
888 +
889 + 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
890 +    a transaction and always reset the object.
891 +
892 + 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
893 +
894 + 13. TIBXScript: Allow for override of database filename in Create Database statements.
895 +
896 + 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
897 +    to a gbak format archive.
898 +
899 + 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
900 +
901 + 16. IBLocaldb: Drop database if error creating an empty database.
902 +
903 + 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
904 +    unless selected node not in current dataset.
905 +
906 + 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
907 +    to TIBCustomService, and IBlocalDB code tidy up.
908 +
909 + 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
910 +    behaviour due to uninitialised variable.
911 +
912 + 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
913 +    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
914 +
915 + 21. IBSQL: When Database changed ensure that all resources are freed.
916 +
917 + 22. IBCustomDataset: When database changed ensure that queries an unprepared.
918 +
919 + 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
920 +    * Line Wrap on SQL Token boundaries (on user command)
921 +    * auto-complete table names in drop down list of table names
922 +    * Double click on tablename or field name adds to SQL text
923 +
924 + 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
925 +
926 + 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
927 +    TVariantArray. Seems to avoid memory corruption in Windows (probably a
928 +    workaround for a problem in fpc 3.0.4 win64).
929 +
930 + 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
931 +
932 + 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
933 +
934 + IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
935 +
936 + 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
937 +   include remote system name.
938 +
939 + 2. TIBExtract: No longer include comment header and COMMIT statement for empty
940 +   tables when data included in output.
941 +
942 + 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
943 +   and timing information to be written to stdout. This may be used to locate
944 +   performance bottlenecks.
945 +
946 + 4. SQLParser: only call "OnChanging" event handler when value is different.
947 +
948 + 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
949 +
950 + 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
951 +   that BindFields is called when the query is next activated. Avoids FieldName
952 +   not found error.
953 +
954 + 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
955 +   purpose and allows the programmer to define any action they want for Update, Insert
956 +   or Delete. This may be complex SQL (similar to a Trigger), application specific
957 +   filtering of updates, or use of statements such as Grant or Revoke instead of
958 +   normal DML. See User Manual for more information.
959 +
960 + IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
961 +
962 + 1. TIBEvents: Fix uninitialised variable that could result in lost events.
963 +
964 + 2. TIBExtract: Added support for FB3 "USAGE" privilege.
965 +
966 + 3. TIBExtract: data formatted as Charset set "octets" is now output using
967 +   hexadecimal notation.
968 +
969 + 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
970 +   using a simple XML format.
971 +
972 + 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
973 +   grants to these objects.
974 +
975 + 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
976 +   dependency problems restoring complex databases.
977 +
978 + 7. TIBXScript: This component has been restructured to allow for the processing of
979 +   embedded XML in INSERT statements and to support interactive sources in addition
980 +   to non-interactive data sources such as files.
981 +
982 + 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
983 +
984 + 9. TIBXScript: ISQL compatiable Set statements are now supported:
985 +   SET SQL DIALECT
986 +   SET TERM
987 +   SET AUTODDL
988 +   SET BAIL
989 +   SET ECHO
990 +   SET COUNT
991 +   SET STATS
992 +   SET NAMES <character set>
993 +
994 + 10. IBVersion unit added to hold current IBX Version Number information.
995 +
996 + 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
997 +    and domain definitions.
998 +
999 + 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
1000 +    fully supported.
1001 +
1002 + 13. TIBExtract: when a database dump includes data, the generator values are now also set.
1003 +
1004 + 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
1005 +
1006 + IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
1007 +
1008 + See also doc/IBX4LazarusGuide.pdf for important information on
1009 + upgrading to IBX2.
1010 +
1011 + 1. Size property of TIBStringField is now the width in characters of the field
1012 +   and not the byte length. This applies only to multi-byte character sets such
1013 +   as UTF8. The original approach aligned with TStringField. However, the TStringField
1014 +   code is not recognised as a bug and hence this change to align the behaviour.
1015 +   The TStringField change is expected in fpc 3.2.0.
1016 +
1017 + 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
1018 +   true (default) then Size property value saved in the lfm is ignored. Size is
1019 +   always set from the dynamic information read from the database. It is unclear
1020 +   why anyone would want to override this and set Size to false.
1021 +
1022 + 3. ibxscript: should now handle correctly a Case..End statement within a procedure
1023 +   block.
1024 +
1025 + 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
1026 +   exist when an attempt is made to connect to it (run time only) then an attempt
1027 +   is made to create the database.
1028 +
1029 + 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
1030 +   has been successfully created as a result of a call to CreateDatabase or when
1031 +   creating a database after it was found not to exist.
1032 +
1033 + 6.  DBControlGrid: a race condition could result in the wrong row image being
1034 +    written to the cache. This has been avoided by a trip round the message
1035 +    loop before rendering the row image.
1036 +
1037 + 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
1038 +    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
1039 +    known to risk corrupt rendering of row images when the control is first
1040 +    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
1041 +    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
1042 +
1043 + 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
1044 +    a TDateEdit control located on an editor panel.
1045 +
1046 + 9.  TIBExtract: brought up-to-date plus many bug fixes.
1047 +
1048 + 10. DBControlGrid: Removed memory leak when updating rows.
1049 +
1050 + 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
1051 +
1052 + IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
1053 +
1054 + 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
1055 +   when target codepage is CP_NONE. This is a workaround for
1056 +   http://bugs.freepascal.org/view.php?id=30622.
1057 +
1058 + 2. DBLog option removed from TIBStatisticalService - not supported by server
1059 +   since Firebird 1.5.
1060 +
1061 + 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
1062 +   similar.
1063 +
1064 + 4. IBCodePage: updated mapping between codepages and character id.
1065 +
1066 + 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
1067 +   Firebird. Character sets with a char width of two are not UTF16.
1068 +
1069 + 6. Strings received from the database are now always transliterated into UTF8
1070 +   regardless of the database character set or connection character set. This
1071 +   is for compatibility with the LCL.
1072 +
1073 + IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
1074 +
1075 + 1. IBBlob: Defer reading of blob until read method called. This avoids having to
1076 +   read in an entire blob just to get the size of the blob. General performance
1077 +   improvement when opening datasets containing blobs.
1078 +
1079 + 2. Clearing a  Blob now sets the corresponding field's modified flag.
1080 +
1081 + 3. IBLookupCombo: When not performing auto-complete, original query sort order
1082 +   is now used.
1083 +
1084 + 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
1085 +   determined.
1086 +
1087 + 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
1088 +
1089 + 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
1090 +   lazarus 1.6.0
1091 +
1092 + 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
1093 +   compilation error.
1094 +
1095 + IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
1096 +
1097 + 1. No character set specified for connection: when a text blob is retrieved, the
1098 +  character set is determined by looking up the native character set using then
1099 +  Firebird API. Otherwise a text mode blob is assumed to have the same character
1100 +  set as the connection.
1101 +
1102 + 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
1103 +   for Login Dialog returing a change to the database path.
1104 +
1105 + 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
1106 +   to be changed from that given in the TIBDatabase/TIBServer component and for the
1107 +   entered value to be saved on a project specific basis (design time only).
1108 +
1109 + 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
1110 +   column fieldname. If they are the same then it is acts as a look up for the KeyValue
1111 +   Otherwise, it sets the column text to the selected ListField Value.
1112 +
1113 + 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
1114 +   column width.
1115 +
1116 + 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
1117 +   and a case insensitive search is requested.
1118 +
1119 + 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
1120 +   or column ListSource.
1121 +
1122 + 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
1123 +   unprepare) when closing and the text has not changed.
1124 +
1125 + 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
1126 +   Less likely to cause a cursor re-use error on Windows.
1127 +
1128 + 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
1129 +   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
1130 +
1131 + 11. TIBTreeView: Guard against nil destination on record changed
1132 +
1133 + 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
1134 +    string type with the code page set to reflect the returned field encoding after
1135 +    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
1136 +    earlier versions.
1137 +
1138 + 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
1139 +    will now result in transliteration to the code page specified for the Firebird driver
1140 +    if the assigned string has a different code page. FPC 3.0.0 onwards only.
1141 +
1142 + 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
1143 +    is ignored and the lc_ctype value, when the database is opened, is set to align with
1144 +    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
1145 +    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
1146 +    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
1147 +    the GETACP is used to determine the Windows code page.
1148 +
1149 + 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
1150 +    name used as the lc_ctype when the database was opened. Only valid while the
1151 +    Database is connected.
1152 +
1153 + 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
1154 +    id that corresponds to the DefaultCharSetName.
1155 +
1156 + IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
1157 +
1158 + 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
1159 +   path is given and database attach fails due to access permission issues on the
1160 +   temp directory or security database, then the attach is retried with "localhost:"
1161 +   prefixing the databasename. This should avoid problems when the database has to
1162 +   be accessed by a local (e.g. classic) server and libfbembed is used.
1163 +
1164 + 2. Windows: revised search order for Firebird DLL:
1165 +     i.   The Firebird Embedded Server in the application Directory.
1166 +     ii.  If the FIREBIRD environment variable is set then the directory this
1167 +          points to is searched for the FB Client DLL and then then underlying
1168 +          "bin" directory.
1169 +     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
1170 +          is used to locate the Firebird installation directory and the underlying
1171 +          "bin" directory is searched for the FB Client DLL.
1172 +     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
1173 +          are searched for the FB Client DLL.
1174 +     v.   The PATH Environment variable is used to search for the FB Client DLL.
1175 +     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
1176 +
1177 + 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
1178 +   See doc/readme.scriptengine and example applications.
1179 +
1180 + 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
1181 +   simplify the use of the embedded firebird server on both Linux and Windows platforms.
1182 +   See dpc/readme.localdatabase and example applications.
1183 +
1184 + 5. IBDynamicGrid: Reordering on column header click should now also work for
1185 +   dynamic columns.
1186 +
1187 + 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
1188 +   between incrementing/decrementing the lock count and signalling the event.
1189 +
1190 + IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
1191 +
1192 + 1.3.2 was never formally released and only made available as beta copies.
1193 +
1194 + 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
1195 +
1196 + 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
1197 +
1198 + 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
1199 +
1200 + 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
1201 +   i.e. when it is a calculated field
1202 +
1203 + 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
1204 +   This problem was due to a race condition between recalculating row heights and
1205 +   determining which row was selected by the mouse click. The row height calculation
1206 +   is now deferred by an extra trip round the message loop allowing the row to
1207 +   be always calculated on the current grid layout rather than risking it being
1208 +   calculated on the grid layout after the expanded row has been shrunk.
1209 +
1210 + 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
1211 +   Windows.
1212 +
1213 + 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
1214 +   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
1215 +   to be determined at runtime. See doc/readme.charactersets.html.
1216 +
1217 + 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
1218 +   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
1219 +
1220 + 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
1221 +   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
1222 +   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
1223 +
1224 +   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
1225 +   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
1226 +   implies no truncation.
1227 +
1228 + 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
1229 +
1230 + 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
1231 +   (avoids "Not in Edit Mode" error).
1232 +
1233 + 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
1234 +
1235 + 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
1236 +    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
1237 +
1238 + 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
1239 +
1240 + 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
1241 +
1242 + 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
1243 +
1244 + 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
1245 +
1246   IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
1247  
1248   1.   OnCloseUp Event Handler added to TDBLookupProperties

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