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

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