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Revision 426 by tony, Mon Nov 27 14:36:52 2023 UTC

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1 < FBINTF Change Log  version                (1.1-3) Fri, 27 Apr 2018 09:06:10 +0100
1 > FBINTF Change Log  version          (1.4-1 Build 14096) Sat, 21 Oct 2023 14:41:26 +0100
2 >
3 > 1. FBSQLData: ensure that TResults.getSQLData and TResults.GetData use same error
4 >   checks for range checking.
5 >
6 > 2. FB25Client: In GetIBMessage, fb_interpret is now called multiple times such that
7 >   any additional error information is decoded.
8 >
9 > 3. FB25Statement: When changing a param type from Blob sub_type 1 to SQL_TEXT or SQL_VARYING
10 >   charsetid is now preserved and size is set to default blob size. Now aligns with
11 >   FB3 and later.
12 >
13 > 4. DDL and DML string literals are now explicitly set to the connection character
14 >   set rather than the default character set provided by the compiler.
15 >
16 > 5. General tidy up of transliteration functions, now centralised in IBUtils. FPC testing
17 >   now makes use of the RTL fpwidestring unit for support of international character
18 >   sets.
19 >
20 > 6. Database exception handling (see section 9.3 in user guide).
21 >    * For FB3 and later API: Connection Character set now applied to message returned
22 >      by fb_interpret and message then transliterated if necessary to the system character set.
23 >    * For Legacy API: The message character set is guessed as UTF8 unless invalid
24 >      UTF8 characters found when connection character set is assumed. Message then
25 >      transliterated if necessary to system character set.
26 >      Note: this difference of behaviour is because legacy API presents exception messages
27 >      "as is", while FB3 server attempts to transliterate to connection character set.
28 >
29 > FBINTF Change Log  version          (1.4-0 Build 14011) Sat, 05 Aug 2023 11:09:09 +0100
30 >
31 > 1. Support package fbudr added for support of User Defined Routines (UDRs), and package
32 >   fbudrtestbed for client side debugging of UDR libraries.
33 >
34 > 2. Package layout changed with introduction of udr support. IB*.pas files moved from
35 >    root directory to "client". IBHeader moved to "Client".
36 >
37 > 3. Delphi packages: all packages now compile .dcp and .bpi files to either
38 >   fbintf\Win32\Debug or fbintf\Win64\Debug by default. Please remove any pre-existing
39 >   fbintf.dcp and fbintf.bpi files from other locations.
40 >
41 > 4. Client side journaling support added. Interface changes
42 >   IAttachment
43 >    function JournalingActive: boolean;
44 >    function GetJournalOptions: TJournalOptions;
45 >    function StartJournaling(aJournalLogFile: AnsiString): integer; overload;
46 >    function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload;
47 >    function StartJournaling(S: TStream; Options: TJournalOptions): integer; overload;
48 >    procedure StopJournaling(RetainJournal: boolean);
49 >
50 > 5. Transactions may now be given a local transaction name:
51 >   IFirebirdAPI
52 >     function StartTransaction(Attachments: array of IAttachment;
53 >             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
54 >             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit;
55 >             aName: AnsiString=''): ITransaction; overload;
56 >     function StartTransaction(Attachments: array of IAttachment;
57 >             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
58 >             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit;
59 >             aName: AnsiString=''): ITransaction; overload;
60 >
61 >   IAttachment
62 >    function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
63 >    function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
64 >    function StartTransaction(TPB: array of byte;
65 >                              DefaultCompletion: TTransactionCompletion=taCommit;
66 >                              aName: AnsiString=''): ITransaction; overload;
67 >    function StartTransaction(TPB: ITPB;
68 >                              DefaultCompletion: TTransactionCompletion=taCommit;
69 >                              aName: AnsiString=''): ITransaction; overload;
70 >
71 >  ITransaction
72 >    function GetTransactionName: AnsiString;
73 >    procedure SetTransactionName(aValue: AnsiString);
74 >
75 > 6. Additional Transaction information
76 >     ITPB.function AsText: AnsiString; {Returns TPB as a text string}
77 >
78 >   ITransaction
79 >     function GetDefaultCompletion: TTransactionCompletion;
80 >     function GetJournalingActive(attachment: IAttachment): boolean; {attachment must be specified when multi-database transaction}
81 >
82 > 7. New IAttachment helper functions
83 >     function HasTable(aTableName: AnsiString): boolean;
84 >     function HasFunction(aFunctionName: AnsiString): boolean;
85 >     function HasProcedure(aProcName: AnsiString): boolean;
86 >     function GetAttachmentID: integer;
87 >     function GetCharSetID: integer;
88 >
89 > 8. IStatement: if the BatchRowLimit is set to maxint, the maximum possible buffer size
90 >   will be allocated for batch operations.
91 >
92 > 9. IStatement, IColumnMetaData and ISQLParam all now consistently provide:
93 >    function GetStatement: IStatement;
94 >    function GetTransaction: ITransaction;
95 >    function GetAttachment: IAttachment;
96 >
97 > 10. Internal: a more disciplined approach to the handling of Firebird.IReferenceCounted
98 >    interfaces.
99 >
100 > 11. New interface type: IFBNumeric. IFBNumeric is implemented in the unit FBNumeric
101 >    and concentrates all handling of Fixed Point numbers. New ISQLItem and ISQLParam
102 >    functions getAsNumeric and setAsNumeric allow for direct retrival and manipulation
103 >    of numerics without loss of precision.
104 >
105 > 12. TryStrToNumeric and NumericToDouble moved from IBUtils to FBNumeric.
106 >
107 > 13. ISQLParams new method "Clear"
108 >
109 > 14. Connection Info (e.g. ODS Version, Remote Protocol) now retrieved on first
110 >    request rather than on attachment connect.
111 >
112 > 15. IStatus.IBDataBaseErrorMessages now defaults to [ShowIBMessage]. This reflects the
113 >    fact that SQLCodes are soon to be deprecated. In the future, the other options
114 >    will be silently ignored if SQLCode support is not present in the Firebird
115 >    Client library.
116 >
117 > 16. ITransaction changes Rollback and Commit from procedures to functions:
118 >      function Commit(Force: boolean=false): TTrCompletionState;
119 >      function Rollback(Force: boolean=false): TTrCompletionState;
120 >
121 >    Specifically, this is to allow the functions to report back a failed commit or
122 >    rollback when Force = true. In the case, the transaction handle has been
123 >    released, while the transaction remains in limbo.
124 >
125 > 17. IAttachment ExecImmediate.
126 >    When the transaction parameters are provided as an array of const and the
127 >    statement fails, the transaction is rolledback (forced) before the exception
128 >    is raised.
129 >
130 > 18. In Firebird 3 and later API: the status vector is now a thread var, as was
131 >    already the case with the legacy API. Avoids problems when calling underlying
132 >    Firebird API in multiple threads.
133 >
134 > 19. IBUtils: TSQLXMLReader: "string" type changed to "AnsiString" for compatibility
135 >    reasons.
136 >
137 > 20. IDBInformation.DecodeVersionString now supported isc_info_firebird_version.
138 >
139 > 21. TSQLXMLReader: handle 'blob' as a reserved word
140 >
141 > 22. ISQLParam.SetAsVariant now accepts a vartype of varUString (UnicodeString).
142 >
143 >
144 > FBINTF Change Log  version          (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
145 >
146 > 1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
147 >
148 > 2. Remove constraint in IAttachment.HasScollableCursors that returned false when
149 >   using remote protocol. Scrollable cursors with remote database expected to
150 >   be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
151 >   a not supported error.
152 >
153 > 3. IStatement: new function;
154 >    TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
155 >    TStatementFlags = set of TStatementFlag;
156 >    function GetFlags: TStatementFlags;
157 >
158 > 4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
159 >   compatibility.
160 >   In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
161 >   type changes from ExecProcedure to Select. So that ExecuteQuery can continue
162 >   to be used with Update...Retruning statements that return a singleton row,
163 >   instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
164 >   it will open the cursor and return the first row only.
165 >
166 > 5. ITransaction: new functions:
167 >    function GetIsReadOnly: boolean;
168 >    function GetTransactionID: integer;
169 >    function GetTrInformation(Requests: array of byte): ITrInformation; overload;
170 >    function GetTrInformation(Request: byte): ITrInformation; overload;
171 >
172 >   The latter two return the Transaction Information block. The first two extract
173 >   information the Transaction Information block
174 >
175 > 6. New function TSQLTokeniser.ReadCharacters
176 >   Used internally.
177 >
178 > 7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
179 >   parameter placeholders instead of named parameters.
180 >
181 > 8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
182 >   transaction handle is now ignored if Rollback/Commit is called with Force=true
183 >
184 > 9. Tidy up of exception handling code. Under the legacy API, fb_interpret is now
185 >   used to get an IBError Message instead of isc_interprete.
186 >
187 > 10. Internal tidyup. Native code now used for decoding integers and the events
188 >    buffer. Avoids dependencies on fbclient functions isc_portable_integer,
189 >    isc_event_block and isc_event_counts.
190 >
191 > 11. New IAttachment function
192 >     function GetAttachmentID: integer;
193 >
194 > 12. Internal changes to TFBClientAPI, TFBAttachment and TFBTransaction and TFB30
195 >    subclasses to enable UDR support.
196 >
197 > FBINTF Change Log  version          (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
198 >
199 > 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
200 >
201 > 2. IStatement: new methods:
202 >    procedure SetStaleReferenceChecks(Enable:boolean); {default true}
203 >    function GetStaleReferenceChecks: boolean;
204 >
205 >   In previous versions, stale reference checks were always enabled. This allows the
206 >   user to disable them on a per statement basis. Note this can risk out-of-date
207 >   statement BLR. See User Guide.
208 >
209 > 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
210 >   stored procedure and hence avoids replacing named parameters within a containing
211 >   BEGIN..END block.
212 >
213 > 4. ISQLParam: using a string value to set an integer field with a scale factor of
214 >   zero is now treated as a special case to avoid the risk of floating point
215 >   rounding errors affecting pure integers.
216 >
217 > 5. ISQLParam:  Review and tidy-up of SetAsString for numeric types.
218 >
219 > 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
220 >   SQL Parameter metadata (methods moved from ISQLParam).
221 >
222 > 7. ISQLParam: new method
223 >     function getColMetadata: IParamMetaData;
224 >   This instance of IParamMetaData returns the original column metadata which is unmutable.
225 >   Note: ISQLParam metadata can change after a parameter value has been set e.g when
226 >   setting a VARCHAR column to an integer value.
227 >
228 > 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
229 >    procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
230 >   also IAttachment:
231 >    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
232 >    function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
233 >    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
234 >                       aSQLDialect: integer; GenerateParamNames: boolean=false;
235 >                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
236 >    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
237 >                       GenerateParamNames: boolean=false;
238 >                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
239 >
240 > 9. Support for scrollable cursors added. New/updated methods:
241 >   IAttachment:
242 >    function HasScollableCursors: boolean;
243 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
244 >                             Scrollable: boolean=false): IResultSet; overload;
245 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
246 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
247 >                             params: array of const): IResultSet; overload;
248 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
249 >                             params: array of const): IResultSet; overload;
250 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
251 >                             params: array of const): IResultSet; overload;
252 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
253 >                             Scrollable: boolean=false): IResultSet; overload;
254 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
255 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
256 >                             params: array of const): IResultSet; overload;
257 >    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
258 >    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
259 >                             params: array of const): IResultSet; overload;
260 >   IStatement:
261 >     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
262 >   IResultSet:
263 >    function FetchPrior: boolean; {fetch previous record}
264 >    function FetchFirst:boolean; {fetch first record}
265 >    function FetchLast: boolean; {fetch last record}
266 >    function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
267 >    function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
268 >    function IsBof: boolean;
269 >
270 > 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
271 >
272 > 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
273 >    may be noticeable when a line separator occurs inside quoted text. The quoted text
274 >    output by the tokeniser will now use the platform specific lineEnding regardless
275 >    of whether the input uses the CRLF or LF as a line separator.
276 >
277 > 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
278 >
279 >
280 > FBINTF Change Log  version          (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
281 >
282 > 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
283 >
284 > 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
285 >   will now be encoded inline (i.e. as part of the parameter buffer) if they are
286 >   shorter than a pre-set limit. Longer values continue to be saved as blobs as a
287 >   separate server interaction. This is intended as a performance optimisation.
288 >
289 >   The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
290 >   IAttachment interface functions:
291 >
292 >    function GetInlineBlobLimit: integer;
293 >    procedure SetInlineBlobLimit(limit: integer);
294 >
295 > 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
296 >   user as the functionality is embedded in the implementation of the IStatement
297 >   interface. Three new functions are defined:
298 >
299 >    procedure AddToBatch;
300 >    function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
301 >    procedure CancelBatch;
302 >    function GetBatchCompletion: IBatchCompletion;
303 >    function GetBatchRowLimit: integer;
304 >    procedure SetBatchRowLimit(aLimit: integer);
305 >
306 >   Also
307 >
308 >    function IsInBatchMode: boolean;        {true after call to execute(eaDefer)}
309 >    function HasBatchMode: boolean;         {true if and only if IBatch Supported}
310 >
311 >   For more information see the User Guide.
312 >
313 > 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
314 >   provided with the EIBInterBaseError now include all three parts.
315 >
316 > 5. Firebird.pas and include files updated to Firebird 4.0.0
317 >
318 > 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
319 >   Returns SQL Statement type as a text string;
320 >
321 > 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
322 >   an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
323 >
324 > FBINTF Change Log  version          (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
325 >
326 > 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
327 >   typo in FB30Statement.pas that caused an unknown parameter error.
328 >
329 > FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
330 >
331 > 1. Imported (Firebird) constants updated for Firebird 4.
332 >
333 > 2. Firebird.pas from Firebird 4 integrated into source code tree.
334 >
335 > 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
336 >
337 > 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
338 >
339 > 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
340 >   QueryInterface may be used to coerce this interface from IFirebirdAPI. The
341 >   interface provides a single method "function GetIMasterIntf: IMaster". This provides
342 >   type safe access to the Firebird IMaster interface and avoids the need to turn
343 >   off object checks when coercing "function GetIMaster: TObject" to IMaster.
344 >
345 > 6. New IFirebirdAPI Calls:
346 >    function HasLocalTZDB: boolean;
347 >    function HasTimeZoneSupport: boolean;
348 >    function HasExtendedTZSupport: boolean;
349 >    procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
350 >    function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
351 >
352 > 7. New IAttachment Calls:
353 >    function HasDecFloatSupport: boolean;
354 >    function GetTimeZoneServices: ITimeZoneServices;
355 >    function HasTimeZoneSupport: boolean;
356 >
357 > 8. New Interface ITimeZoneServices.
358 >
359 > 9. New ISQLData API Calls:
360 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
361 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
362 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
363 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
364 >    function GetAsUTCDateTime: TDateTime;
365 >    function GetAsBCD: tBCD;
366 >
367 > 10. New ISQLParam API Calls
368 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
369 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
370 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
371 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
372 >    function GetAsUTCDateTime: TDateTime;
373 >    function GetAsBCD: tBCD;
374 >    function GetStatement: IStatement;
375 >    function GetTransaction: ITransaction;
376 >    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
377 >    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
378 >    procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
379 >    procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
380 >    procedure SetAsUTCDateTime(aUTCTime: TDateTime);
381 >    procedure SetAsBcd(aValue: tBCD);
382 >
383 > 11. New IArray API Calls
384 >    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
385 >    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
386 >    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
387 >    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
388 >    function GetAsUTCDateTime(index: array of integer): TDateTime;
389 >    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
390 >    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
391 >    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
392 >    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
393 >
394 > 12. Utility functions in IBUtils
395 >    function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
396 >              var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
397 >    procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
398 >    function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
399 >    function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
400 >    function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
401 >    function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
402 >
403 > 13. IDPB, ITPB and ISPB: new interface method
404 >      function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
405 >    This is used to add a parameter block item by the string equivalent of its
406 >    symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
407 >
408 > 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
409 >      function getParamTypeName: AnsiString;
410 >
411 > 15. fb_shutdown now called before unloading Firebird library. This can avoid a
412 >     SIGEVENT error when a programme using the embeded server is unloaded.
413 >
414 > FBINTF Change Log  version          (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
415 >
416 > 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
417 >   with a Firebrid 3 client library.
418 >
419 > 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
420 >    If a client library path is not explicitly provided and the FIREBIRD environment
421 >    variable is set then the directory given by this variable and any 'lib' subdirectory
422 >    are searched for the Firebird client library. Only if none is found, is the default
423 >    client library used.
424 >
425 > 3.  IUtil.FormatStatus now used to format error messages when using new API
426 >
427 > 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
428 >
429 > 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
430 >    returned using GetAsString and the string codepage is UTF8, the string is truncated so
431 >    that the byte length corresponds to the number of characters specified for the column.
432 >    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
433 >    correct behaviour but may affect some implementations that relied upon automatic
434 >    trimming of trailing white space.
435 >
436 > 6.  New IFirebirdAPI Calls:
437 >      function GetClientMajor: integer;
438 >      function GetClientMinor: integer;
439 >
440 > 7.  IColumnMetaData and IArrayMetaData: new method
441 >      function GetCharSetWidth: integer;
442 >
443 > FBINTF Change Log  version          (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
444 >
445 > 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
446 >   case sensitive
447 >
448 > 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
449 >
450 > 3. New API Calls:
451 >        IColumnMetaData.GetStatement
452 >        IColumnMetaData.GetTransaction
453 >        ISQLData.GetStrDataLength
454 >        IResults.GetStatement
455 >        IAttachment.OpenBlob (using Blob metadata)
456 >        IAttachment.OpenArray (using array metadata)
457 >
458 > 4. FBMessages: removal of unused messages
459 >
460 > 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
461 >
462 > 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
463 >
464 > FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
465 >
466 > 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
467 >   where the second character of the parameter name is a numeric.
468 >
469 > 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
470 >   This returns the isc_version connection information as one or more lines.
471 >   This is the same information as returned by isql with the -z option.
472 >
473 > 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
474 >   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
475 >   compiler option then the Firebird 3 API is no longer compiled in.
476 >
477 > 4. IColumnMetaData: new method.
478 >
479 >   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
480 >                        dfDateTime,   {SQL DATETIME}
481 >                        dfTime);
482 >
483 >   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
484 >
485 >   This returns the max. number of characters returned by the "AsString" method
486 >   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
487 >
488 > 5. Additional argument for IAttachment.PrepareWithNamedParameters -
489 >     CaseSensitiveParams: boolean = false
490 >
491 >   If this argument is set to true then SQL parameter names are assumed to be case
492 >   sensitive and must be referenced (using ISQLParams.ByName) using the case
493 >   sensitive name.
494 >
495 > 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
496 >   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
497 >   .AsCurrency) and then subsequently to update the value to a non-numeric string
498 >   using .AsString.
499 >
500 >
501 >
502 > FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
503  
504   1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
505  
506 + 2. Restrict IsMultiThread check to Unix only for compatibility with
507 +   https://bugs.freepascal.org/view.php?id=30535
508 +
509 + 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
510 +   named parameters and is intended to avoid problems with (e.g.) Execute Block
511 +   and processing internal parameters as statement parameters.
512 +
513 + 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
514 +   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
515 +
516 + 5. New function added to IB.pas
517 +
518 +   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
519 +
520 +   This allows a Firebird Library to be loaded from an explicit path. use the
521 +   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
522 +   the library. It is possible to load Firebird libraries from different locations
523 +   simultaneously, each with a distinct IFirebirdAPI.
524 +
525   FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
526  
527   1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when

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