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Revision 70 by tony, Thu Oct 26 12:59:51 2017 UTC vs.
Revision 438 by tony, Mon Jul 22 14:15:33 2024 UTC

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1 < FBINTF Change Log  version                    (1.1-0) Thu, 26 Oct 2017 13:46:32 +0100
1 > FBINTF Change Log  version          (1.4-2 Build 15853) Fri, 12 Jul 2024 13:41:21 +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.

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