ViewVC Help
View File | Revision Log | Show Annotations | Download File | View Changeset | Root Listing
root/public/ibx/trunk/fbintf/changelog
Revision: 435
Committed: Mon Jun 3 13:11:42 2024 UTC (5 months, 2 weeks ago) by tony
File size: 38375 byte(s)
Log Message:
Publication of R2-7-0

File Contents

# Content
1 FBINTF Change Log version (1.4-2 Build 15740) Wed, 29 May 2024 15:47:44 +0100
2
3 1. IBUtils.FormatTimeZoneOffset A zero offset now includes a preceding '+' sign.
4
5 2. TFBStatement.DoJournaling now exits immediately if journaling is not active. The
6 motivation for this is to avoid calling the Firebird API function 'getInfo'
7 unnecesarily. This function can return an error if an incompatible parameter type was
8 applied to the statement and hence can confuse resolving the bug. Note: a
9 specific case is in (e.g.) OpenCursorAtStart method when the array of const includes a
10 TDateTime. In this case, the param is set to a floating point type rather than
11 a Firebird datetime (array of const loses the distinction).
12
13 3. TFBAttachment.SetParameters. if an attempt is made to set a parameter with a float
14 value, the metadata type is checked to see if the parameter is a Date/Time type. If so then
15 the value is assumed to be a TDateTime and the parameter is set using the AsDateTime
16 property. Otherwise, the value is assumed to be a floating point type and the AsDouble
17 property is used to set the property. This avoids the specific example given above.
18
19 4. IBHeader (legacy interface only) Definition of Start_Transaction changed to use
20 varargs - win64 compatibility issue.
21
22 5. FB25Blob: last parameter of call to isc_blob_lookup_desc is now set to nil. This
23 avoids memory corruption with Firebird 4 when using the legacy interface.
24
25 6. ISDL interface moved from FB30Array to IB. This is to avoid internal FPC compiler errors
26 consequential on the use of generics across units.
27
28 7. Internal changes necessary to correctly compile and run with FPC 3.3.1 and later.
29
30 8. Firebird 5 support tested.
31
32 9. Firebird.pas renamed to FirebirdOOAPI.pas in order to avoid confusion with
33 version distributed with Firebird.
34
35 FBINTF Change Log version (1.4-1 Build 14103) Mon, 27 Nov 2023 14:26:35 +0000
36
37 1. FBSQLData: ensure that TResults.getSQLData and TResults.GetData use same error
38 checks for range checking.
39
40 2. FB25Client: In GetIBMessage, fb_interpret is now called multiple times such that
41 any additional error information is decoded.
42
43 3. FB25Statement: When changing a param type from Blob sub_type 1 to SQL_TEXT or SQL_VARYING
44 charsetid is now preserved and size is set to default blob size. Now aligns with
45 FB3 and later.
46
47 4. DDL and DML string literals are now explicitly set to the connection character
48 set rather than the default character set provided by the compiler.
49
50 5. General tidy up of transliteration functions, now centralised in IBUtils. FPC testing
51 now makes use of the RTL fpwidestring unit for support of international character
52 sets.
53
54 6. Database exception handling (see section 9.3 in user guide).
55 * For FB3 and later API: Connection Character set now applied to message returned
56 by fb_interpret and message then transliterated if necessary to the system character set.
57 * For Legacy API: The message character set is guessed as UTF8 unless invalid
58 UTF8 characters found when connection character set is assumed. Message then
59 transliterated if necessary to system character set.
60 Note: this difference of behaviour is because legacy API presents exception messages
61 "as is", while FB3 server attempts to transliterate to connection character set.
62
63 FBINTF Change Log version (1.4-0 Build 14011) Sat, 05 Aug 2023 11:09:09 +0100
64
65 1. Support package fbudr added for support of User Defined Routines (UDRs), and package
66 fbudrtestbed for client side debugging of UDR libraries.
67
68 2. Package layout changed with introduction of udr support. IB*.pas files moved from
69 root directory to "client". IBHeader moved to "Client".
70
71 3. Delphi packages: all packages now compile .dcp and .bpi files to either
72 fbintf\Win32\Debug or fbintf\Win64\Debug by default. Please remove any pre-existing
73 fbintf.dcp and fbintf.bpi files from other locations.
74
75 4. Client side journaling support added. Interface changes
76 IAttachment
77 function JournalingActive: boolean;
78 function GetJournalOptions: TJournalOptions;
79 function StartJournaling(aJournalLogFile: AnsiString): integer; overload;
80 function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload;
81 function StartJournaling(S: TStream; Options: TJournalOptions): integer; overload;
82 procedure StopJournaling(RetainJournal: boolean);
83
84 5. Transactions may now be given a local transaction name:
85 IFirebirdAPI
86 function StartTransaction(Attachments: array of IAttachment;
87 TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
88 TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit;
89 aName: AnsiString=''): ITransaction; overload;
90 function StartTransaction(Attachments: array of IAttachment;
91 TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
92 TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit;
93 aName: AnsiString=''): ITransaction; overload;
94
95 IAttachment
96 function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
97 function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
98 function StartTransaction(TPB: array of byte;
99 DefaultCompletion: TTransactionCompletion=taCommit;
100 aName: AnsiString=''): ITransaction; overload;
101 function StartTransaction(TPB: ITPB;
102 DefaultCompletion: TTransactionCompletion=taCommit;
103 aName: AnsiString=''): ITransaction; overload;
104
105 ITransaction
106 function GetTransactionName: AnsiString;
107 procedure SetTransactionName(aValue: AnsiString);
108
109 6. Additional Transaction information
110 ITPB.function AsText: AnsiString; {Returns TPB as a text string}
111
112 ITransaction
113 function GetDefaultCompletion: TTransactionCompletion;
114 function GetJournalingActive(attachment: IAttachment): boolean; {attachment must be specified when multi-database transaction}
115
116 7. New IAttachment helper functions
117 function HasTable(aTableName: AnsiString): boolean;
118 function HasFunction(aFunctionName: AnsiString): boolean;
119 function HasProcedure(aProcName: AnsiString): boolean;
120 function GetAttachmentID: integer;
121 function GetCharSetID: integer;
122
123 8. IStatement: if the BatchRowLimit is set to maxint, the maximum possible buffer size
124 will be allocated for batch operations.
125
126 9. IStatement, IColumnMetaData and ISQLParam all now consistently provide:
127 function GetStatement: IStatement;
128 function GetTransaction: ITransaction;
129 function GetAttachment: IAttachment;
130
131 10. Internal: a more disciplined approach to the handling of Firebird.IReferenceCounted
132 interfaces.
133
134 11. New interface type: IFBNumeric. IFBNumeric is implemented in the unit FBNumeric
135 and concentrates all handling of Fixed Point numbers. New ISQLItem and ISQLParam
136 functions getAsNumeric and setAsNumeric allow for direct retrival and manipulation
137 of numerics without loss of precision.
138
139 12. TryStrToNumeric and NumericToDouble moved from IBUtils to FBNumeric.
140
141 13. ISQLParams new method "Clear"
142
143 14. Connection Info (e.g. ODS Version, Remote Protocol) now retrieved on first
144 request rather than on attachment connect.
145
146 15. IStatus.IBDataBaseErrorMessages now defaults to [ShowIBMessage]. This reflects the
147 fact that SQLCodes are soon to be deprecated. In the future, the other options
148 will be silently ignored if SQLCode support is not present in the Firebird
149 Client library.
150
151 16. ITransaction changes Rollback and Commit from procedures to functions:
152 function Commit(Force: boolean=false): TTrCompletionState;
153 function Rollback(Force: boolean=false): TTrCompletionState;
154
155 Specifically, this is to allow the functions to report back a failed commit or
156 rollback when Force = true. In the case, the transaction handle has been
157 released, while the transaction remains in limbo.
158
159 17. IAttachment ExecImmediate.
160 When the transaction parameters are provided as an array of const and the
161 statement fails, the transaction is rolledback (forced) before the exception
162 is raised.
163
164 18. In Firebird 3 and later API: the status vector is now a thread var, as was
165 already the case with the legacy API. Avoids problems when calling underlying
166 Firebird API in multiple threads.
167
168 19. IBUtils: TSQLXMLReader: "string" type changed to "AnsiString" for compatibility
169 reasons.
170
171 20. IDBInformation.DecodeVersionString now supported isc_info_firebird_version.
172
173 21. TSQLXMLReader: handle 'blob' as a reserved word
174
175 22. ISQLParam.SetAsVariant now accepts a vartype of varUString (UnicodeString).
176
177
178 FBINTF Change Log version (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
179
180 1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
181
182 2. Remove constraint in IAttachment.HasScollableCursors that returned false when
183 using remote protocol. Scrollable cursors with remote database expected to
184 be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
185 a not supported error.
186
187 3. IStatement: new function;
188 TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
189 TStatementFlags = set of TStatementFlag;
190 function GetFlags: TStatementFlags;
191
192 4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
193 compatibility.
194 In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
195 type changes from ExecProcedure to Select. So that ExecuteQuery can continue
196 to be used with Update...Retruning statements that return a singleton row,
197 instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
198 it will open the cursor and return the first row only.
199
200 5. ITransaction: new functions:
201 function GetIsReadOnly: boolean;
202 function GetTransactionID: integer;
203 function GetTrInformation(Requests: array of byte): ITrInformation; overload;
204 function GetTrInformation(Request: byte): ITrInformation; overload;
205
206 The latter two return the Transaction Information block. The first two extract
207 information the Transaction Information block
208
209 6. New function TSQLTokeniser.ReadCharacters
210 Used internally.
211
212 7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
213 parameter placeholders instead of named parameters.
214
215 8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
216 transaction handle is now ignored if Rollback/Commit is called with Force=true
217
218 9. Tidy up of exception handling code. Under the legacy API, fb_interpret is now
219 used to get an IBError Message instead of isc_interprete.
220
221 10. Internal tidyup. Native code now used for decoding integers and the events
222 buffer. Avoids dependencies on fbclient functions isc_portable_integer,
223 isc_event_block and isc_event_counts.
224
225 11. New IAttachment function
226 function GetAttachmentID: integer;
227
228 12. Internal changes to TFBClientAPI, TFBAttachment and TFBTransaction and TFB30
229 subclasses to enable UDR support.
230
231 FBINTF Change Log version (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
232
233 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
234
235 2. IStatement: new methods:
236 procedure SetStaleReferenceChecks(Enable:boolean); {default true}
237 function GetStaleReferenceChecks: boolean;
238
239 In previous versions, stale reference checks were always enabled. This allows the
240 user to disable them on a per statement basis. Note this can risk out-of-date
241 statement BLR. See User Guide.
242
243 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
244 stored procedure and hence avoids replacing named parameters within a containing
245 BEGIN..END block.
246
247 4. ISQLParam: using a string value to set an integer field with a scale factor of
248 zero is now treated as a special case to avoid the risk of floating point
249 rounding errors affecting pure integers.
250
251 5. ISQLParam: Review and tidy-up of SetAsString for numeric types.
252
253 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
254 SQL Parameter metadata (methods moved from ISQLParam).
255
256 7. ISQLParam: new method
257 function getColMetadata: IParamMetaData;
258 This instance of IParamMetaData returns the original column metadata which is unmutable.
259 Note: ISQLParam metadata can change after a parameter value has been set e.g when
260 setting a VARCHAR column to an integer value.
261
262 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
263 procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
264 also IAttachment:
265 function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
266 function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
267 function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
268 aSQLDialect: integer; GenerateParamNames: boolean=false;
269 CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
270 function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
271 GenerateParamNames: boolean=false;
272 CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
273
274 9. Support for scrollable cursors added. New/updated methods:
275 IAttachment:
276 function HasScollableCursors: boolean;
277 function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
278 Scrollable: boolean=false): IResultSet; overload;
279 function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
280 function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
281 params: array of const): IResultSet; overload;
282 function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
283 params: array of const): IResultSet; overload;
284 function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
285 params: array of const): IResultSet; overload;
286 function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
287 Scrollable: boolean=false): IResultSet; overload;
288 function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
289 function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
290 params: array of const): IResultSet; overload;
291 function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
292 function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
293 params: array of const): IResultSet; overload;
294 IStatement:
295 function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
296 IResultSet:
297 function FetchPrior: boolean; {fetch previous record}
298 function FetchFirst:boolean; {fetch first record}
299 function FetchLast: boolean; {fetch last record}
300 function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
301 function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
302 function IsBof: boolean;
303
304 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
305
306 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
307 may be noticeable when a line separator occurs inside quoted text. The quoted text
308 output by the tokeniser will now use the platform specific lineEnding regardless
309 of whether the input uses the CRLF or LF as a line separator.
310
311 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
312
313
314 FBINTF Change Log version (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
315
316 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
317
318 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
319 will now be encoded inline (i.e. as part of the parameter buffer) if they are
320 shorter than a pre-set limit. Longer values continue to be saved as blobs as a
321 separate server interaction. This is intended as a performance optimisation.
322
323 The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
324 IAttachment interface functions:
325
326 function GetInlineBlobLimit: integer;
327 procedure SetInlineBlobLimit(limit: integer);
328
329 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
330 user as the functionality is embedded in the implementation of the IStatement
331 interface. Three new functions are defined:
332
333 procedure AddToBatch;
334 function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
335 procedure CancelBatch;
336 function GetBatchCompletion: IBatchCompletion;
337 function GetBatchRowLimit: integer;
338 procedure SetBatchRowLimit(aLimit: integer);
339
340 Also
341
342 function IsInBatchMode: boolean; {true after call to execute(eaDefer)}
343 function HasBatchMode: boolean; {true if and only if IBatch Supported}
344
345 For more information see the User Guide.
346
347 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
348 provided with the EIBInterBaseError now include all three parts.
349
350 5. Firebird.pas and include files updated to Firebird 4.0.0
351
352 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
353 Returns SQL Statement type as a text string;
354
355 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
356 an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
357
358 FBINTF Change Log version (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
359
360 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
361 typo in FB30Statement.pas that caused an unknown parameter error.
362
363 FBINTF Change Log version (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
364
365 1. Imported (Firebird) constants updated for Firebird 4.
366
367 2. Firebird.pas from Firebird 4 integrated into source code tree.
368
369 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
370
371 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
372
373 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
374 QueryInterface may be used to coerce this interface from IFirebirdAPI. The
375 interface provides a single method "function GetIMasterIntf: IMaster". This provides
376 type safe access to the Firebird IMaster interface and avoids the need to turn
377 off object checks when coercing "function GetIMaster: TObject" to IMaster.
378
379 6. New IFirebirdAPI Calls:
380 function HasLocalTZDB: boolean;
381 function HasTimeZoneSupport: boolean;
382 function HasExtendedTZSupport: boolean;
383 procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
384 function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
385
386 7. New IAttachment Calls:
387 function HasDecFloatSupport: boolean;
388 function GetTimeZoneServices: ITimeZoneServices;
389 function HasTimeZoneSupport: boolean;
390
391 8. New Interface ITimeZoneServices.
392
393 9. New ISQLData API Calls:
394 procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
395 procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
396 procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
397 procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
398 function GetAsUTCDateTime: TDateTime;
399 function GetAsBCD: tBCD;
400
401 10. New ISQLParam API Calls
402 procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
403 procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
404 procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
405 procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
406 function GetAsUTCDateTime: TDateTime;
407 function GetAsBCD: tBCD;
408 function GetStatement: IStatement;
409 function GetTransaction: ITransaction;
410 procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
411 procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
412 procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
413 procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
414 procedure SetAsUTCDateTime(aUTCTime: TDateTime);
415 procedure SetAsBcd(aValue: tBCD);
416
417 11. New IArray API Calls
418 procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
419 procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
420 procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
421 procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
422 function GetAsUTCDateTime(index: array of integer): TDateTime;
423 procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
424 procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
425 procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
426 procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
427
428 12. Utility functions in IBUtils
429 function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
430 var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
431 procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
432 function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
433 function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
434 function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
435 function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
436
437 13. IDPB, ITPB and ISPB: new interface method
438 function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
439 This is used to add a parameter block item by the string equivalent of its
440 symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
441
442 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
443 function getParamTypeName: AnsiString;
444
445 15. fb_shutdown now called before unloading Firebird library. This can avoid a
446 SIGEVENT error when a programme using the embeded server is unloaded.
447
448 FBINTF Change Log version (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
449
450 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
451 with a Firebrid 3 client library.
452
453 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
454 If a client library path is not explicitly provided and the FIREBIRD environment
455 variable is set then the directory given by this variable and any 'lib' subdirectory
456 are searched for the Firebird client library. Only if none is found, is the default
457 client library used.
458
459 3. IUtil.FormatStatus now used to format error messages when using new API
460
461 4. Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
462
463 5. SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
464 returned using GetAsString and the string codepage is UTF8, the string is truncated so
465 that the byte length corresponds to the number of characters specified for the column.
466 SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
467 correct behaviour but may affect some implementations that relied upon automatic
468 trimming of trailing white space.
469
470 6. New IFirebirdAPI Calls:
471 function GetClientMajor: integer;
472 function GetClientMinor: integer;
473
474 7. IColumnMetaData and IArrayMetaData: new method
475 function GetCharSetWidth: integer;
476
477 FBINTF Change Log version (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
478
479 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
480 case sensitive
481
482 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
483
484 3. New API Calls:
485 IColumnMetaData.GetStatement
486 IColumnMetaData.GetTransaction
487 ISQLData.GetStrDataLength
488 IResults.GetStatement
489 IAttachment.OpenBlob (using Blob metadata)
490 IAttachment.OpenArray (using array metadata)
491
492 4. FBMessages: removal of unused messages
493
494 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
495
496 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
497
498 FBINTF Change Log version (1.1-4 Build 11515) Fri, 28 Dec 2018 10:04:19 +0000
499
500 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
501 where the second character of the parameter name is a numeric.
502
503 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
504 This returns the isc_version connection information as one or more lines.
505 This is the same information as returned by isql with the -z option.
506
507 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
508 is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
509 compiler option then the Firebird 3 API is no longer compiled in.
510
511 4. IColumnMetaData: new method.
512
513 TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
514 dfDateTime, {SQL DATETIME}
515 dfTime);
516
517 function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
518
519 This returns the max. number of characters returned by the "AsString" method
520 when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
521
522 5. Additional argument for IAttachment.PrepareWithNamedParameters -
523 CaseSensitiveParams: boolean = false
524
525 If this argument is set to true then SQL parameter names are assumed to be case
526 sensitive and must be referenced (using ISQLParams.ByName) using the case
527 sensitive name.
528
529 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
530 is of type VarChar or Char to set the parameter to a numeric value (e.g. using
531 .AsCurrency) and then subsequently to update the value to a non-numeric string
532 using .AsString.
533
534
535
536 FBINTF Change Log version (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
537
538 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
539
540 2. Restrict IsMultiThread check to Unix only for compatibility with
541 https://bugs.freepascal.org/view.php?id=30535
542
543 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
544 named parameters and is intended to avoid problems with (e.g.) Execute Block
545 and processing internal parameters as statement parameters.
546
547 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
548 or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
549
550 5. New function added to IB.pas
551
552 function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
553
554 This allows a Firebird Library to be loaded from an explicit path. use the
555 IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
556 the library. It is possible to load Firebird libraries from different locations
557 simultaneously, each with a distinct IFirebirdAPI.
558
559 FBINTF Change Log version (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
560
561 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
562 program compiled with -CR command line switch.
563
564 2. IServiceManager additions (informational):
565 function getProtocol: TProtocol;
566 function getPortNo: AnsiString;
567
568 3. IServiceManager improved error handling. Interfaces changed:
569 function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
570 function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
571 function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
572
573 4. IAttachment addition (informational)
574 function GetSecurityDatabase: AnsiString;
575
576 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
577 thus now returns accumulated stats for a select statement from opening a cursor
578 up to the last fetch.
579
580 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
581 the problem.
582
583 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
584 replaces deprecated "comp" type.
585
586 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
587
588 11. URL Connection Strings: inet4 and inet6 now recognised.
589
590 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
591
592 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
593
594
595 FBINTF Change Log version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
596
597 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
598
599 2. IAttachment: add two new methods
600 function HasDefaultCharSet: boolean;
601 function GetDefaultCharSetID: integer;
602
603 These return, respectively, true if a connection default character set was
604 specified and the character set id of the connection default character set.
605 The DefaultCharSetID is cached when the connection is opened and hence does not
606 require a database lookup.
607
608 3. Avoid exception when a text blob is a stored procedure parameter.
609
610 4. Update test suite to include a test for a stored proc returning a text blob.
611
612 5. IAttachment: add
613 function GetRemoteProtocol: AnsiString;
614 function GetODSMajorVersion: integer;
615 function GetODSMinorVersion: integer;
616 function GetAuthenticationMethod: AnsiString;
617
618 These results are cached when the connection is opened and hence do not
619 require a database lookup.
620
621 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
622 connect string used to create/connect to the database.
623
624 7. IAttachment: Create Database using SQL statement. The username and password
625 are now extracted and used to populate a DPB made available via IAttachment.getDPB.
626 It is now possible to use IAttachment disconnect/connect to reconnect to
627 a database for which the initial connection was established by a create
628 database sql statement. Available in FPC only.
629
630 8. Update Test 1 to test 5, 6 and 7 above.
631
632 9. IBUtils code tidy up.
633
634 10. Parameter Block interfaces "find" method. As documented, this should have
635 returned a nil interface when the item could not be found. Instead, an empty
636 interface item was returned. "Find" now works as documented and will return
637 a nil interface if the item cannot be found.
638
639 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
640
641 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
642 requests with additional parameters. This is to enable support for fb_info_page_contents
643 (return of page contents). Response to fb_info_page_contents returned as
644 a string with code page CP_NONE.
645
646 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
647 test suite updated.
648
649 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
650 a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
651
652 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
653 An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
654 default connection port to be specified.
655
656 FBINTF Change Log version (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
657
658 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
659 Scale is no longer ignored.
660
661 2. Fix issues with setting SQL Param values using SetAsString with Date values
662 not in locale format but which are recognised by Firebird. Date values that
663 cannot be converted to a string using Pascal library are now passed through
664 to Firebird as Text Strings.
665
666 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
667 UTF8 and not UNICODE_FSS.
668
669 4. Charset ID problem. When using Firebird 3, with no default database character set
670 and a column has a non-default collation specified, an incorrect character set
671 id was being reported that could result in a 'division by zero' error when
672 used by IBX. This has now been fixed.
673
674 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
675 CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
676 the character sets supported can be updated on a per database basis. That is
677 it is possible to add a (Firebird) user defined character set to a database.
678
679 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
680 set supported by Firebird with the API.
681
682 7. Add missing isc_info_db_read_only to list of decoded Database Information items
683 in FBOutputBlock.pas and update test suite to include this item.
684
685 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
686
687 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
688 library or finding it by disk location, the PATH environment variable is now also set to
689 include the FIREBIRD directory. This is to ensure that the correct dlls in the
690 firebird client library dependencies are loaded.
691
692 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
693
694 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
695
696 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
697
698 13. FB30Statement: A check has been added to ensure that all SQL Parameters
699 have been given a value (including NULL). Previously, failing to set the
700 value of an SQL Parameter could give rise to unpredictable results or
701 an SQLDA error.
702
703 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
704
705 15. FBAttachment: Avoid string reference count error when processing an Ansistring
706 parameter in an array of const passed to IAttachment.OpenCursor, etc.
707
708 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
709 of const passed to IAttachment.OpenCursor, etc.
710
711
712 FBINTF Change Log version (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
713
714 1. Change syntax to Mode Delphi
715
716 2. Change all uses of string type to explicit AnsiString in order to ensure
717 compatibility between Delphi and FPC.
718
719 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
720 defined for each interface.
721
722 4. Generics syntax variations for Delphi added
723
724 5. PChar replaced with PByte expect where an actual string is being referenced,
725 where PAnsiChar is used instead.
726
727 6. Review of type definitions in IBExternals to ensure Delphi compatibility
728
729 7. Testsuite updated for Delphi
730
731 FBINTF Change Log version (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
732
733 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
734 large blobs and the FB3 API.
735
736 2. Update Event Handling algorithm to avoid looping due to recreation of the
737 event block.
738
739 3. Avoid invalid XSQLDA error when the only parameter is updated to null
740
741 4. Array Handling: fix problem with text arrays with character set none. When the
742 DB connection has a default character set (e.g. UTF8), an error is raised by
743 Firebird if the space allocated is not enough to allow for transliteration, even
744 though it is not required for character set none.
745
746 5. IBUtils: List of reserved words brought up-to-date
747
748 6. Add ISQL style performance statistics collection to IStatement
749
750 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
751 CREATE DATABASE statement.
752
753 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
754 an array dimension is not mistaken for a named parameter prefix.
755
756 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
757 when Character set is octets. Avoids loss of non printable characters at start of string.
758
759 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
760 statistics for the last action. Requires use of procedure IStatement.EnableStatistics
761 to enable stats gathering.
762
763 11. API Version information added as constants to IB.pas
764
765 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
766
767 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
768
769 FBINTF Change Log version (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
770
771 1. Initial Release
772