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Revision 17 by tony, Sat Dec 28 19:22:24 2013 UTC vs.
Revision 267 by tony, Fri Dec 28 10:44:23 2018 UTC

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1 + IBX Change Log  version (2.3-3 Build 11288) Fri, 28 Dec 2018 10:04:17 +0000
2 +
3 + 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
4 +   and is used to override the default settings in the client side "firebird.conf" This
5 +   includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
6 +   Each line of the string list should be a setting in the same format as "firebird.conf".
7 +   For example "WireCompression = true" in order to request wire compression on the client side.
8 +
9 +   Note: explicit settings in the client side "firebird.conf" appear to take precedence
10 +   over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
11 +   also require a compatible setting in the server side "firebird.conf". For example
12 +   "WireCompression = true" must also be set in the server's "firebird.conf" for wire
13 +   compression to be used.
14 +
15 +   Whether or not WireCompression or WireCrypt are in use can be checked using the information
16 +   returned with the Client/Server protocol version. See ibx/examples/dbadmin and
17 +   ibx/examples/dbinfo for examples of how to display this information.
18 +
19 + 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
20 +   is a "convenience" property. If set the "WireCompression=true" is added to the
21 +   ConfigOverrides. If unchecked then this setting is removed.
22 +
23 + IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
24 +
25 + 1. Remove need to check for IsMultiThread by providing access to GUI timers via
26 +   IBGUIInterface. Note: master/detail delay timer does not apply to console
27 +   mode apps.
28 +
29 + 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
30 +   statement. This avoids problems if "Execute Block" is used as the Query.
31 +
32 + 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
33 +   internal SQL tokeniser routines.
34 +
35 + 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
36 +   as a select statement, with or without CTEs.
37 +
38 + 5. IBSQLParser: parser now recognises the "ROWS" clause.
39 +
40 + 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
41 +   internal SQL tokeniser routines.
42 +
43 + 7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
44 +    being raised for valid set statements processed by a data formatter.
45 +
46 + 8. New published property for TIBDatabase and TIBXServicesConnection. This is
47 +   FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
48 +   the path of the Firebird Library used by the database/services connection.
49 +
50 + 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
51 +   is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
52 +   services connection.
53 +
54 + 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
55 +   or param name is not a valid SQL identifier.
56 +
57 + 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
58 +    view of whether the text box should be editable when no DataSource is specified.
59 +    TIBLookupComboEditBox has been updated to workaround this problem. As long as
60 +    ReadOnly is false, the text box is editable when no DataSource is specified.
61 +
62 + 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
63 +    the FBLIB environment variable. If you do not want to permit this then you
64 +    must modify the Register procedure in the design/IBDBReg.pas unit to remove
65 +    this setting.
66 +
67 + IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
68 +
69 + 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
70 +   Utf8EscapeControlChars
71 +
72 + IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
73 +
74 + IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
75 + all previous copies of the IBX source code tree before installing this release.
76 +
77 + The IBX packages used by most users have not changed, with one exception. The
78 + IBServices unit has been moved to the package iblegacyServices.lpk. To continue
79 + to use the IBServices unit in your applications, please add the iblegacyServices
80 + to the list of dependencies. To do this, open the Project Inspector and select
81 + Add->New Requirement and select "ibLegacyServices" from the list of available
82 + packages.
83 +
84 + 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
85 +   the IBServices unit providing what is intended to be a clearer and easier to
86 +   use set of IB Services components. See Chapter 10 of the IBX User Guide for
87 +   more information and the guide to "Firebird Service Management Using IBX".
88 +   As indicated above, the legacy services components are still available and
89 +   provided in a separate package. There is no need to update working applications
90 +   using the older versions except for an additional package dependency.
91 +
92 + 2. The IBX packages and source code tree have been re-organised in an attempt to
93 +   finally get rid of the "duplicate ppu" warnings. This re-organisation should
94 +   not affect existing users. Section 2.3 of the IBX User Guide describes the
95 +   new set of IBX packages.
96 +
97 + 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
98 +   updated to use the new Services API components.
99 +
100 + 4. The iblocal package has been updated to use the new Services API components.
101 +
102 + 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
103 +   TIBXSecurityService. It had been wrongly classified in the previous version
104 +   as a per database configuration item. It is global to a server and hence
105 +   correctly positioned as part of the Security Package. In the DBAdmin example,
106 +   the setting has moved to the mappings page.
107 +
108 + 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
109 +   are ignored.
110 +
111 + 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
112 +   closed before the database is dropped. Before and After Disconnect event handlers
113 +   are also fired.
114 +
115 + 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
116 +   is started and not just the first time.
117 +
118 + 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
119 +   depenendency with comp type.
120 +
121 + 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
122 +
123 + 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
124 +    then this is recognised and not ignored.
125 +
126 + 12. TIBDataSet, TIBQuery, TIBTable: additions:
127 +    function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
128 +    function GetPerfStatistics(var stats: TPerfCounters): boolean;
129 +    property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
130 +
131 +    GetRowsAffected returns the affected row counts from the last insert/update/delete
132 +    if EnableStatistics = true then GetPerfStatistics returns the current stats
133 +    counters for the select query. Note: stats accumulate after each fetch from
134 +    the database. To get total query cost after open, call the "Last" method
135 +    and then GetPerfStatistics.
136 +
137 +    See ibx/examples/consolemode for an example of the use of GetPerfStatistics
138 +
139 + 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
140 +    in parenthesises.
141 +
142 + 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
143 +    SQL identifiers are always delimited by double quotes. If false, then they are
144 +    only delimited if the identifier is a reserved word, contains lower case or special
145 +    characters. Set this property to true to retain previous behaviour.
146 +
147 + 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
148 +    are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
149 +
150 + 16. TIBDataSet, TIBQuery, TIBTable: addition:
151 +       property MasterDetailDelay: integer {defaults to zero}
152 +
153 +    When non-zero and the dataset is a detail table referencing a master table
154 +    through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
155 +    then a synchronisation delay is added (in milliseconds) between the master
156 +    row changing and the detail dataset being re-opened. If the master dataset
157 +    is scrolled before the delay expires then the delay is reset. This can be used
158 +    to avoid performance overheads when scrolling through a large master dataset.
159 +
160 +    Note: uses fptimer and hence requires a thread manager. Under Linux the
161 +    chreads unit must be included in your project. TTimer is not used in order
162 +    to avoid an LCL dependency. Requires FPC 3.0.2 or later.
163 +
164 + 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
165 +    with Extract Option eoDatabase.
166 +
167 + 18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
168 +    When a deLayoutChanged event is reported on the ListSource dataset, the
169 +    combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
170 +    relationship with the control's datasource (master).
171 +
172 + 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
173 +
174 + 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
175 +    stubs. Pedantic fix really, as procedures output in dependency order anyway.
176 +
177 + 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
178 +    DDL (Firebird 3 and later only).
179 +
180 + 22. TIBLookupComboBox Autocomplete Fixes:
181 +    i. Only appended text is now selected after autocomplete.
182 +    ii. Uppercase keys no longer ignored for autocomplete.
183 +    iii. Retain Prefix case is now honoured correctly.
184 +    iv. When a DataSource is assigned, typing after autocomplete now extends prefix
185 +        before autocomplete performed. i.e. behaviour now the same as when
186 +        no DataSource assigned.
187 +
188 + 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
189 +    between SQL statements.
190 +
191 + 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
192 +    ObjectNames are converted to upper case before matching against metadata object
193 +    names, unless the objectname is delimited by double quotes, in which case, the
194 +    double quotes are removed and the remaining string is used (unmodified) to match
195 +    against the metadata object name.
196 +
197 +    If true then the ObjectName is used as is without modification and matched
198 +    against the metadata object name. No attempt is made to remove double quotes.
199 +
200 + 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
201 +    with eoTrigger, these extract types can be used to select only Database Triggers,
202 +    or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
203 +
204 + 26. TIBXScript: If an exception occurs during the processing of a statement, the
205 +    statement separate character is now reset to the default (';').
206 +
207 + 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
208 +
209 + 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
210 +    a commit or reconnect statement and instead activated only when next SQL statement
211 +    is executed.
212 +
213 + 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
214 +
215 + 30. TIBXScript: case insensitive regex now used when matching statements instead of
216 +    converting statement to upper case.
217 +
218 + 31. TIBExtract: metadata comments now supported. New published property
219 +    IncludeMetaDataComments (default true). If true then metadata comments included
220 +    in extracted DDL. New Extract Object member eoComments. This may be used with
221 +    ExtractObject method to list all metadata comments.
222 +
223 + 32. TIBExtract: ListObjectNames method added.
224 +
225 + 33. Updated Database component editor to support additional connection string
226 +    types.
227 +
228 + IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
229 +
230 + NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
231 + AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
232 + RELEASE.
233 +
234 + NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
235 +
236 + 1. IBExtract: Identity columns - add additional check for null column for generator name.
237 +
238 + 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
239 +   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
240 +   information). However, this is also a very useful mechanism for returning updated computed by
241 +   column values. Values returned as a result of executing an Insert or Update statement
242 +   replace existing values in the current row for each corresponding column.
243 +
244 +   Previously, if a dataset's select query included read only (computed by) fields then
245 +   an automatic row refresh was performed after an insert or update query had been processed,
246 +   irrespective of the setting of the "ForcedUpdates" property. This has changed such
247 +   that an automatic refresh is no longer performed if an insert or update query contains
248 +   a returning clause that updates one or more fields on the current row. A full row
249 +   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
250 +   field values and the select query contains read only fields. Use of Insert/update
251 +   returning should be significantly more efficient than executing a refresh query.
252 +
253 +   This behaviour change is intended to be backwards compatible and there should be no need to change
254 +   existing programs, other than to improve performance by using the new capability.
255 +
256 + 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
257 +   they are called when the dataset row is being deleted, there is no value in
258 +   updating the current record from the query result. Instead, a new event handler
259 +   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
260 +   an OnDeleteReturning event handler is provided then it is called with the IResults returned
261 +   by the query. The event handler can then interrogate the query results and
262 +   perform whatever action is necessary. For example to confirm, to the user,
263 +   the deletion of a row with the returned values.
264 +
265 + 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
266 +   any Computed By or Identity Columns. The IBTables example has been updated to
267 +   illustrate the computation of the employee Full Name on update.
268 +
269 + 5. TIBTable: The GeneratorField property is now published.
270 +
271 + 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
272 +   When InsertSQL is generated, the Identity columns are not included in the list of values to
273 +   be inserted. A RETURNING clause is added to the insert statement to return the value of
274 +   each Identity column after the insert is executed.
275 +
276 + 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
277 +   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
278 +   Insert..Returning clause.
279 +
280 + 8. TIBGenerator: small performance improvement by not preparing query each time
281 +   a new value is generated.
282 +
283 + 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
284 +
285 + 10. Property editors will now sync table name to a System Table when "Include System
286 +    Tables" is selected and the query is for a System Table.
287 +
288 + 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
289 +    values are no longer converted to milliseconds from TDateTime and then back again
290 +    to TDateTime (the conversion to milliseconds is the default TDataset approach).
291 +
292 + 12. Property Editors handling of Stored Procedures.
293 +    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
294 +      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
295 +      query).
296 +    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
297 +
298 + 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
299 +    can be used to select a package. If non-empty, the stored procedure name is
300 +    expected to be a stored procedure defined in the specified package and the
301 +    generated SQL will be as required for a stored procedure located in a package.
302 +
303 + 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
304 +    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
305 +    which a stored procedure can be selected. With no package name selected, non-package
306 +    stored procedures are listed.
307 +
308 + 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
309 +    for password on reconnect.
310 +
311 + 16. TIBDatabase: use IAttachment for connection default character set id, code page
312 +    and character set name.
313 +
314 + 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
315 +    DB info lookups"
316 +
317 + 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
318 +
319 + 19. Add a property Editor for TIBUpdate.RefreshSQL.
320 +
321 + 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
322 +    parameters. This stops an exception being raised when the field cannot be
323 +    located in the record buffer.
324 +
325 + 21. Property Editors now automatically include System Tables when opened and when the query table
326 +    is a System Table.
327 +
328 + 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
329 +    This avoids errors due to a stale SQRB or SRB being used for the next query.
330 +
331 + 23. IBServices: Service attach parameters now include "expected_db". This is used to
332 +    add the SPB item isc_spb_expected_db. This names a database using
333 +    an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
334 +    database. examples/services re-written to illustrate use of "expected_db".
335 +
336 + 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
337 +    This avoids truncated backups when the server returns a timeout (busy) response.
338 +
339 + 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
340 +
341 + 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
342 +    databasenames. These are respectively expanded to the local system's temp directory
343 +    (including trailing delimiter) or to a prescribed data directory (including
344 +    trailing delimiter). Under Unix systems the data directory is a hidden directory
345 +    in the user's home directory. The hidden directory name is either the string returned
346 +    from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
347 +    Under Windows, the directory is the same as the Data Directory as decribed
348 +    above but instead prefixed by the User's application data path. These may be
349 +    used to improve application portability for Personal Databases.
350 +
351 + 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
352 +    this has not worked for a long time and is not useful either. FieldDefs should be
353 +    managed using the Fields Editor as with any other dataset. To access the fields
354 +    editor for a TIBTable component, double click on the component. The fields editor
355 +    is then displayed.
356 +
357 + 28. TIBDatabaseInfo: new properties/function
358 +     * DateDBCreated (returns date/time database created)
359 +     * TransactionCount (returns no. of active transactions)
360 +     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
361 +     * PagesFree (Firebird 3 or later)
362 +     * PagesUsed (Firebird 3 or later)
363 +     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
364 +     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
365 +
366 + 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
367 +
368 + 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
369 +
370 + 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
371 +    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
372 +
373 + 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
374 +    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
375 +    firing during backup and restore.
376 +
377 + 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
378 +    for verbose output using the new property "StatisticsRequested".
379 +    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
380 +
381 + 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
382 +
383 + 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
384 +    palette. This uses the online validation feature added in Firebird 2.5. The
385 +    services's properties enable inclusion/exclusion of tables and indexes using
386 +    regular expressions. See.
387 +    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
388 +
389 + 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
390 +    option on a database.
391 +
392 + 37. TIBCustomService: Assign method implemented to allow copying of service login
393 +    context between service API components. "Detach" method now only detaches
394 +    service when last reference to the service interface detaches. Tidy up of
395 +    code for SetActive and Attach methods including password hiding.
396 +
397 + 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
398 +    and used to determine the auth method and protocol used for the connection.
399 +
400 + 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
401 +    a Create Database Statement generated by IBX.
402 +
403 + 40. All IBServices now have an additional published property "PortNo". This may
404 +    be set to a non-standard port number when necessary. If zero then the default
405 +    port number is used.
406 +
407 + 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
408 +    and not just the mouse.
409 +
410 + 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
411 +
412 + 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
413 +    image index and selected image index for each node to be set from a database field.
414 +
415 + 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
416 +    then database schema includes grants to all users. If not present then the
417 +    only user grants included are those to User PUBLIC.
418 +
419 + 45. TIBTreeView: performance improvement. When expanding include both expanded node
420 +    and child nodes in dataset.
421 +
422 +
423 + IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
424 +
425 + 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
426 +   changes.
427 +
428 + 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
429 +   Bug could result in truncated multi-byte character set values.
430 +
431 + 3. Changes consequential on moving fbintf character set utility functions from
432 +   IFirebirdAPI to IAttachment.
433 +
434 + 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
435 +
436 + 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
437 +   results in autocomplete ignoring prefix text.
438 +
439 + 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
440 +   entering a new name into the text box.
441 +
442 + 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
443 +   Firebird rather than recomputing it.
444 +
445 + 8. Property Editor positioning tidy up: All IBX Property editors should now be
446 +   screen centre. Previously some were "poDesigned" which may be inappropriate
447 +   for multi monitor desktops.
448 +
449 + 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
450 +
451 + 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
452 +    a transaction and always reset the object.
453 +
454 + 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
455 +
456 + 13. TIBXScript: Allow for override of database filename in Create Database statements.
457 +
458 + 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
459 +    to a gbak format archive.
460 +
461 + 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
462 +
463 + 16. IBLocaldb: Drop database if error creating an empty database.
464 +
465 + 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
466 +    unless selected node not in current dataset.
467 +
468 + 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
469 +    to TIBCustomService, and IBlocalDB code tidy up.
470 +
471 + 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
472 +    behaviour due to uninitialised variable.
473 +
474 + 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
475 +    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
476 +
477 + 21. IBSQL: When Database changed ensure that all resources are freed.
478 +
479 + 22. IBCustomDataset: When database changed ensure that queries an unprepared.
480 +
481 + 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
482 +    * Line Wrap on SQL Token boundaries (on user command)
483 +    * auto-complete table names in drop down list of table names
484 +    * Double click on tablename or field name adds to SQL text
485 +
486 + 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
487 +
488 + 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
489 +    TVariantArray. Seems to avoid memory corruption in Windows (probably a
490 +    workaround for a problem in fpc 3.0.4 win64).
491 +
492 + 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
493 +
494 + 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
495 +
496 + IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
497 +
498 + 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
499 +   include remote system name.
500 +
501 + 2. TIBExtract: No longer include comment header and COMMIT statement for empty
502 +   tables when data included in output.
503 +
504 + 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
505 +   and timing information to be written to stdout. This may be used to locate
506 +   performance bottlenecks.
507 +
508 + 4. SQLParser: only call "OnChanging" event handler when value is different.
509 +
510 + 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
511 +
512 + 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
513 +   that BindFields is called when the query is next activated. Avoids FieldName
514 +   not found error.
515 +
516 + 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
517 +   purpose and allows the programmer to define any action they want for Update, Insert
518 +   or Delete. This may be complex SQL (similar to a Trigger), application specific
519 +   filtering of updates, or use of statements such as Grant or Revoke instead of
520 +   normal DML. See User Manual for more information.
521 +
522 + IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
523 +
524 + 1. TIBEvents: Fix uninitialised variable that could result in lost events.
525 +
526 + 2. TIBExtract: Added support for FB3 "USAGE" privilege.
527 +
528 + 3. TIBExtract: data formatted as Charset set "octets" is now output using
529 +   hexadecimal notation.
530 +
531 + 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
532 +   using a simple XML format.
533 +
534 + 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
535 +   grants to these objects.
536 +
537 + 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
538 +   dependency problems restoring complex databases.
539 +
540 + 7. TIBXScript: This component has been restructured to allow for the processing of
541 +   embedded XML in INSERT statements and to support interactive sources in addition
542 +   to non-interactive data sources such as files.
543 +
544 + 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
545 +
546 + 9. TIBXScript: ISQL compatiable Set statements are now supported:
547 +   SET SQL DIALECT
548 +   SET TERM
549 +   SET AUTODDL
550 +   SET BAIL
551 +   SET ECHO
552 +   SET COUNT
553 +   SET STATS
554 +   SET NAMES <character set>
555 +
556 + 10. IBVersion unit added to hold current IBX Version Number information.
557 +
558 + 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
559 +    and domain definitions.
560 +
561 + 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
562 +    fully supported.
563 +
564 + 13. TIBExtract: when a database dump includes data, the generator values are now also set.
565 +
566 + 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
567 +
568 + IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
569 +
570 + See also doc/IBX4LazarusGuide.pdf for important information on
571 + upgrading to IBX2.
572 +
573 + 1. Size property of TIBStringField is now the width in characters of the field
574 +   and not the byte length. This applies only to multi-byte character sets such
575 +   as UTF8. The original approach aligned with TStringField. However, the TStringField
576 +   code is not recognised as a bug and hence this change to align the behaviour.
577 +   The TStringField change is expected in fpc 3.2.0.
578 +
579 + 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
580 +   true (default) then Size property value saved in the lfm is ignored. Size is
581 +   always set from the dynamic information read from the database. It is unclear
582 +   why anyone would want to override this and set Size to false.
583 +
584 + 3. ibxscript: should now handle correctly a Case..End statement within a procedure
585 +   block.
586 +
587 + 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
588 +   exist when an attempt is made to connect to it (run time only) then an attempt
589 +   is made to create the database.
590 +
591 + 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
592 +   has been successfully created as a result of a call to CreateDatabase or when
593 +   creating a database after it was found not to exist.
594 +
595 + 6.  DBControlGrid: a race condition could result in the wrong row image being
596 +    written to the cache. This has been avoided by a trip round the message
597 +    loop before rendering the row image.
598 +
599 + 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
600 +    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
601 +    known to risk corrupt rendering of row images when the control is first
602 +    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
603 +    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
604 +
605 + 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
606 +    a TDateEdit control located on an editor panel.
607 +
608 + 9.  TIBExtract: brought up-to-date plus many bug fixes.
609 +
610 + 10. DBControlGrid: Removed memory leak when updating rows.
611 +
612 + 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
613 +
614 + IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
615 +
616 + 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
617 +   when target codepage is CP_NONE. This is a workaround for
618 +   http://bugs.freepascal.org/view.php?id=30622.
619 +
620 + 2. DBLog option removed from TIBStatisticalService - not supported by server
621 +   since Firebird 1.5.
622 +
623 + 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
624 +   similar.
625 +
626 + 4. IBCodePage: updated mapping between codepages and character id.
627 +
628 + 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
629 +   Firebird. Character sets with a char width of two are not UTF16.
630 +
631 + 6. Strings received from the database are now always transliterated into UTF8
632 +   regardless of the database character set or connection character set. This
633 +   is for compatibility with the LCL.
634 +
635 + IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
636 +
637 + 1. IBBlob: Defer reading of blob until read method called. This avoids having to
638 +   read in an entire blob just to get the size of the blob. General performance
639 +   improvement when opening datasets containing blobs.
640 +
641 + 2. Clearing a  Blob now sets the corresponding field's modified flag.
642 +
643 + 3. IBLookupCombo: When not performing auto-complete, original query sort order
644 +   is now used.
645 +
646 + 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
647 +   determined.
648 +
649 + 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
650 +
651 + 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
652 +   lazarus 1.6.0
653 +
654 + 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
655 +   compilation error.
656 +
657 + IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
658 +
659 + 1. No character set specified for connection: when a text blob is retrieved, the
660 +  character set is determined by looking up the native character set using then
661 +  Firebird API. Otherwise a text mode blob is assumed to have the same character
662 +  set as the connection.
663 +
664 + 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
665 +   for Login Dialog returing a change to the database path.
666 +
667 + 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
668 +   to be changed from that given in the TIBDatabase/TIBServer component and for the
669 +   entered value to be saved on a project specific basis (design time only).
670 +
671 + 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
672 +   column fieldname. If they are the same then it is acts as a look up for the KeyValue
673 +   Otherwise, it sets the column text to the selected ListField Value.
674 +
675 + 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
676 +   column width.
677 +
678 + 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
679 +   and a case insensitive search is requested.
680 +
681 + 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
682 +   or column ListSource.
683 +
684 + 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
685 +   unprepare) when closing and the text has not changed.
686 +
687 + 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
688 +   Less likely to cause a cursor re-use error on Windows.
689 +
690 + 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
691 +   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
692 +
693 + 11. TIBTreeView: Guard against nil destination on record changed
694 +
695 + 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
696 +    string type with the code page set to reflect the returned field encoding after
697 +    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
698 +    earlier versions.
699 +
700 + 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
701 +    will now result in transliteration to the code page specified for the Firebird driver
702 +    if the assigned string has a different code page. FPC 3.0.0 onwards only.
703 +
704 + 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
705 +    is ignored and the lc_ctype value, when the database is opened, is set to align with
706 +    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
707 +    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
708 +    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
709 +    the GETACP is used to determine the Windows code page.
710 +
711 + 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
712 +    name used as the lc_ctype when the database was opened. Only valid while the
713 +    Database is connected.
714 +
715 + 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
716 +    id that corresponds to the DefaultCharSetName.
717 +
718 + IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
719 +
720 + 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
721 +   path is given and database attach fails due to access permission issues on the
722 +   temp directory or security database, then the attach is retried with "localhost:"
723 +   prefixing the databasename. This should avoid problems when the database has to
724 +   be accessed by a local (e.g. classic) server and libfbembed is used.
725 +
726 + 2. Windows: revised search order for Firebird DLL:
727 +     i.   The Firebird Embedded Server in the application Directory.
728 +     ii.  If the FIREBIRD environment variable is set then the directory this
729 +          points to is searched for the FB Client DLL and then then underlying
730 +          "bin" directory.
731 +     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
732 +          is used to locate the Firebird installation directory and the underlying
733 +          "bin" directory is searched for the FB Client DLL.
734 +     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
735 +          are searched for the FB Client DLL.
736 +     v.   The PATH Environment variable is used to search for the FB Client DLL.
737 +     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
738 +
739 + 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
740 +   See doc/readme.scriptengine and example applications.
741 +
742 + 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
743 +   simplify the use of the embedded firebird server on both Linux and Windows platforms.
744 +   See dpc/readme.localdatabase and example applications.
745 +
746 + 5. IBDynamicGrid: Reordering on column header click should now also work for
747 +   dynamic columns.
748 +
749 + 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
750 +   between incrementing/decrementing the lock count and signalling the event.
751 +
752 + IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
753 +
754 + 1.3.2 was never formally released and only made available as beta copies.
755 +
756 + 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
757 +
758 + 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
759 +
760 + 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
761 +
762 + 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
763 +   i.e. when it is a calculated field
764 +
765 + 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
766 +   This problem was due to a race condition between recalculating row heights and
767 +   determining which row was selected by the mouse click. The row height calculation
768 +   is now deferred by an extra trip round the message loop allowing the row to
769 +   be always calculated on the current grid layout rather than risking it being
770 +   calculated on the grid layout after the expanded row has been shrunk.
771 +
772 + 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
773 +   Windows.
774 +
775 + 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
776 +   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
777 +   to be determined at runtime. See doc/readme.charactersets.html.
778 +
779 + 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
780 +   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
781 +
782 + 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
783 +   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
784 +   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
785 +
786 +   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
787 +   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
788 +   implies no truncation.
789 +
790 + 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
791 +
792 + 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
793 +   (avoids "Not in Edit Mode" error).
794 +
795 + 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
796 +
797 + 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
798 +    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
799 +
800 + 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
801 +
802 + 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
803 +
804 + 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
805 +
806 + 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
807 +
808 + IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
809 +
810 + 1.   OnCloseUp Event Handler added to TDBLookupProperties
811 +
812 + 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
813 +     problem with row size when exception is called.
814 +
815 + 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
816 +
817 + 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
818 +     in a TCustomComboBox and ignores return key if in a TCustomMemo
819 +
820 + 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
821 +     keyed in i.e. when autocomplete not performed
822 +
823 + 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
824 +     console mode applications with all LCL required functions (builtin dialogs and
825 +     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
826 +     not included in your project, IBX should compile and link with a console mode program.
827 +     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
828 +     console mode application or the IDE will automatically assume that your
829 +     application is GUI based. Instead, you should include the ibexpressconsolemode package.
830 +
831 +     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
832 +     to use the built in dialogs and cursor management. IBDialogs is
833 +     included by default if "ibexpress" is in your project source's "uses" clause.
834 +     This should be the case for all projects created through the IDE. This is why
835 +     you do not want to add the ibexpress package to console mode applications. The
836 +     ibexpressconsolemode package has been created to allow console mode programs
837 +     to avoid adding LCL dependencies when using IBX, while still having the
838 +     unit search paths set up correctly.
839 +
840 +     Existing users should check to ensure that the "ibexpress" unit is included in
841 +     each project's source file (*.lpr).
842 +
843 +     You may find that in order for the IDE to recognise that ibexpressconsolemode
844 +     exists, you have to first open the package in the IDE and then close it. This
845 +     adds it to the most recently accessed packages list. To make it permanently
846 +     available, add the package name to lazarus' staticpackages.inc file.
847 +
848 +         Thanks to Julio Jiménez for suggesting support of console mode.
849 +
850 + 7.   SQL Parser can now accept quoted strings that include new lines
851 +
852 + 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
853 +     of text on start of edit. This is particularly useful when tabbing to a
854 +     column and then inserting text.
855 +
856 + 9.   New Examples provided for IB Services and ISQLMonitor.
857 +
858 + 10. Fix error when writing to blob streams that recorded only the last buffer
859 +    write in the blob stream. In most cases, this did not cause a problem as the
860 +    IB Blob Stream is written in a single write. However, with the TDBImage, write
861 +    of a graphic type prefix was lost which caused a problem when the image could
862 +        not be automatically recognised.
863 +
864 + 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
865 +    already open" errors due to random numbers used for the cursor name being identical.
866 +
867 + 12. IBTable: corrected error that could result in an "Index out of bounds" error
868 +    when opening the table and the Primary Key is the last or only column in the
869 +    table. Thanks to Rick Hoover for the fix.
870 +
871 + 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
872 +    of "UTF-8", and update list of available database character sets. Existing
873 +    users should check the current lc_ctype setting in their applications.
874 +
875 + IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
876 +
877 + 1.  Firebird Services: avoid List Index error when opening a service with an
878 +    empty Params property.
879 +
880 + 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
881 +    Link now set up in Loaded method - avoids occasional failure to apply
882 +    SQL markup on initial open.
883 +
884 + 3.  "Employees" example performance improvements when scrolling.
885 +
886 + 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
887 +    TFrame. Force recaching of selected frame to avoid GTK race (results in a
888 +    random image cached).
889 +
890 + 5.  DBControlGrid: Should now react to changes in panel height at run time.
891 +
892 + 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
893 +    even when further rows exist.
894 +
895 + 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
896 +    always be derived from panel height and setting this property can cause confusion.
897 +    Note for existing projects: to avoid a missing property error at run time,
898 +    each form using the DBControlGrid must be opened, updated and saved in the IDE
899 +    in order to remove the property value from the lfm.
900 +
901 +
902 + IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
903 +
904 + 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
905 +    call Prepare before setting parameter values.
906 +
907 + 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
908 +
909 + 3.  Code tidyup and more robust handling of dsql information result vector.
910 +
911 + 4.  Support for centralised handling of transaction status changes. TIBTransaction
912 +    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
913 +    and "AfterExecQuery". The first three are called after the same event is called
914 +    for an IBCustomDataSet descendent using the Transaction. The fourth is called
915 +    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
916 +    enable monitoring of transaction status changes for a given transaction to be
917 +    handled in a single place. For example, when a change to the dataset occurs
918 +    an indicator can be set that shows the user that in order to save changes,
919 +    the transaction should be committed.  Rather than doing this per dataset, this
920 +    can now be done per transaction.
921 +
922 + 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
923 +    the dataset is scrolled. However, any changes to the current row are, by default,
924 +    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
925 +    have a new property "DataSetCloseAction" that adds automatic posting of changes
926 +    on dataset close. If this property is set to dcDiscardChanges (default) then the
927 +    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
928 +    then IBX will attempt to post any unsaved changes before the dataset is closed
929 +    (and after the BeforeClose event handler is called). The exception is when the
930 +    dataset is being closed as a result of a transaction rollback. In this case,
931 +    no action is taken and any unsaved  changes are discarded. This avoids both
932 +    unnecessary overhead and the risk that a validation error may occur in the Post
933 +    raising an exception and thereby preventing a rollback.
934 +
935 + 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
936 +    In earlier versions, the Display Width was set to the maximum byte width rather than the character
937 +    width. Display Widths are now corrected by dividing by the max byte width per character.
938 +    For UTF8 character sets, the byte width is four and hence the Display Width will be
939 +    the byte width divided by 4. The byte width of each character set is determined
940 +    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
941 +    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
942 +
943 + 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
944 +
945 + 8.  IBLookupComboEditBox: List should now always be restored to full list when the
946 +    control loses focus. Default Key press default interval reduced to 200ms.
947 +
948 + 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
949 +    when dataset rows are less than visible rows.
950 +
951 + 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
952 +    does not exist or DataSet is empty. More responsive on dataset open. New event
953 +    OnRestorePosition. Column sort disabled if no header row.
954 +
955 + 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
956 +    while dataset state is dsInsert. Avoids posting errors.
957 +
958 + 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
959 +    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
960 +
961 + 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
962 +
963 + 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
964 +    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
965 +    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
966 +    always "posts" the current record regardless or whether or not it may be more appropriate
967 +    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
968 +    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
969 +    as the first action of the "Post" method and allows the handler to convert the Post
970 +    into a Cancel if that is the appropriate action on moving to a different row. This is
971 +    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
972 +    raised here, but it may still be more appropriate to validate a post and signal
973 +    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
974 +
975 + 15. On Unix derived systems, the Firebird library name can now be given as a colon
976 +    separated list. Each library name on the list is tried in turn, in left to right
977 +    order with the first found being used as the firebird library. By default, on Linux,
978 +    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
979 +    overidden by the FBLIB environment variable or the OnGetLibraryName function.
980 +
981 +    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
982 +    then it will still attempt to access the database via the Firebird Server and will
983 +    require a username and password. If only the pathname is given, then the username
984 +    and password should be omitted and the unix file permissions are used to grant
985 +    access.
986 +
987 + IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
988 +
989 + 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
990 +    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
991 +    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
992 +    corresponds to a row of the linked DataSource. Any data aware control on the
993 +    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
994 +
995 + 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
996 +   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
997 +   takes place during database access. This may be useful when there are performance issues with
998 +   the change of cursor. Setting the property to false suppresses the change of cursor.
999 +
1000 + 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
1001 +   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
1002 +   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
1003 +   making all changes permanent immediately rather than when the transaction is explicitly
1004 +   committed.
1005 +
1006 + 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1007 +   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1008 +
1009 + IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1010 +
1011 + Development version only.
1012 +
1013 + IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1014 +
1015 + 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1016 +   This is typically used during an "OnBeforeOpen" event handler to manipulate the
1017 +   "Where" and "Having" clauses to implement user specified filters of arbitrary
1018 +   complexity.
1019 +
1020 + 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
1021 +   three new data aware controls dependent on IBX and which make use of the SQL Parser.
1022 +   These are:
1023 +
1024 +   - TIBLookupComboEditBox
1025 +   - TIBDynamicGrid
1026 +   - TIBTreeview
1027 +
1028 +   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1029 +   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1030 +   to revise the available list and restrict it to items that are prefixed by the
1031 +   typed text (either case sensitive or case insensitive). Autoinsert allows a
1032 +   newly typed entry to be added to the list dataset and included in the available
1033 +   list items.
1034 +
1035 +   TIBDynamicGrid is a TDBGrid descendent that provides for:
1036 +   - automatic resizing of selected columns to fill the available row length
1037 +   - automatic positioning and sizing of a "totals" control, typically at the
1038 +     column footer, on a per column basis.
1039 +   - DataSet resorting on header row click, sorting the dataset by the selected column.
1040 +     A second click on the same header cell reversed the sort order.
1041 +   - Support for a "Panel Editor". That is on clicking the indicator column, the row
1042 +     is automatically expanded and a panel superimposed on it. The panel can have any
1043 +     number of child controls, typically data aware controls with the same datasource
1044 +     as the grid allowing for editing of additional fields and more complex editors.
1045 +   - Reselection of the same row following resorting.
1046 +   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
1047 +     Its properties are specified on a per column basis and allows for one or more
1048 +     columns to have their values selected from a list provided by a dataset.
1049 +     Autocomplete and autoinsert are also available. The existing picklist editor
1050 +     is unaffected by the extension.
1051 +
1052 +   TIBTreeView is a data aware TCustomTreeView.
1053 +
1054 + 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
1055 +   zero scale will no longer return an error. An Int64 will be returned instead.
1056 +
1057 + 4. TIBTransaction now has events for Before and After Transaction End and a new function
1058 +   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
1059 +
1060 + 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
1061 +   repeated multiple times.
1062 +
1063 + 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
1064 +   check used to get in the way of using Stored Procedures, and "Update or Insert"
1065 +   statements.
1066 +
1067 + 7. Insert, Modify and Delete property Editors now support Query Generation from
1068 +   Stored Procedures.
1069 +
1070 + 8. Three new examples illustrate the use of the new IB Controls
1071 +
1072 +
1073 + IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1074 +
1075 + 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1076 +   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
1077 +   Gabor Boros for reporting this problem and for testing the improvements).
1078 +
1079 + 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
1080 +   See readme.field+param.names in the doc folder.
1081 +
1082 + 3. IBX SQL Editors will now automatically add double quotes around column names when the database
1083 +   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
1084 +
1085 + 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
1086 +
1087 + 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
1088 +   actions.
1089 +
1090 + 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
1091 +   thanks to Yuriy Kopnin for pointing this out).
1092 +
1093 + 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
1094 +
1095 + 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
1096 +   for both fields and parameter setting.
1097 +
1098 + 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
1099 +   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
1100 +
1101 + 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
1102 +    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
1103 +
1104 + 11. TIBTable now has a property editor for "MasterFields"
1105 +
1106 + 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
1107 +    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
1108 +
1109 + 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
1110 +    of settings is unrecognised. Selecting this radio button has no effect on the settings.
1111 +  
1112 +
1113   IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
1114  
1115   1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.

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