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Revision 45 by tony, Tue Dec 6 10:33:46 2016 UTC vs.
Revision 426 by tony, Mon Nov 27 14:36:52 2023 UTC

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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
528 +   program compiled with -CR command line switch.
529 +
530 + 2. IServiceManager additions (informational):
531 +    function getProtocol: TProtocol;
532 +    function getPortNo: AnsiString;
533 +
534 + 3. IServiceManager improved error handling. Interfaces changed:
535 +    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
536 +    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
537 +    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
538 +
539 + 4. IAttachment addition (informational)
540 +    function GetSecurityDatabase: AnsiString;
541 +
542 + 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
543 +   thus now returns accumulated stats for a select statement from opening a cursor
544 +   up to the last fetch.
545 +
546 + 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
547 +   the problem.
548 +
549 + 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
550 +   replaces deprecated "comp" type.
551 +
552 + 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
553 +
554 + 11. URL Connection Strings: inet4 and inet6 now recognised.
555 +
556 + 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
557 +
558 + 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
559 +
560 +
561 + FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
562 +
563 + 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
564 +
565 + 2. IAttachment: add two new methods
566 +     function HasDefaultCharSet: boolean;
567 +     function GetDefaultCharSetID: integer;
568 +
569 +   These return, respectively, true if a connection default character set was
570 +   specified and the character set id of the connection default character set.
571 +   The DefaultCharSetID is cached when the connection is opened and hence does not
572 +   require a database lookup.
573 +
574 + 3. Avoid exception when a text blob is a stored procedure parameter.
575 +
576 + 4. Update test suite to include a test for a stored proc returning a text blob.
577 +
578 + 5. IAttachment: add
579 +      function GetRemoteProtocol: AnsiString;
580 +      function GetODSMajorVersion: integer;
581 +      function GetODSMinorVersion: integer;
582 +      function GetAuthenticationMethod: AnsiString;
583 +
584 +   These results are cached when the connection is opened and hence do not
585 +   require a database lookup.
586 +
587 + 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
588 +   connect string used to create/connect to the database.
589 +
590 + 7. IAttachment: Create Database using SQL statement. The username and password
591 +   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
592 +   It is now possible to use IAttachment disconnect/connect to reconnect to
593 +   a database for which the initial connection was established by a create
594 +   database sql statement. Available in FPC only.
595 +
596 + 8. Update Test 1 to test 5, 6 and 7 above.
597 +
598 + 9. IBUtils code tidy up.
599 +
600 + 10. Parameter Block interfaces "find" method. As documented, this should have
601 +   returned a nil interface when the item could not be found. Instead, an empty
602 +   interface item was returned. "Find" now works as documented and will return
603 +   a nil interface if the item cannot be found.
604 +
605 + 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
606 +
607 + 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
608 +    requests with additional parameters. This is to enable support for fb_info_page_contents
609 +    (return of page contents). Response to fb_info_page_contents returned as
610 +    a string with code page CP_NONE.
611 +
612 + 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
613 +    test suite updated.
614 +
615 + 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
616 +    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
617 +
618 + 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
619 +    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
620 +    default connection port to be specified.
621 +
622 + FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
623 +
624 + 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
625 +   Scale is no longer ignored.
626 +
627 + 2. Fix issues with setting SQL Param values using SetAsString with Date values
628 +   not in locale format but which are recognised by Firebird. Date values that
629 +   cannot be converted to a string using Pascal library are now passed through
630 +   to Firebird as Text Strings.
631 +
632 + 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
633 +   UTF8 and not UNICODE_FSS.
634 +
635 + 4. Charset ID problem. When using Firebird 3, with no default database character set
636 +   and a column has a non-default collation specified, an incorrect character set
637 +   id was being reported that could result in a 'division by zero' error when
638 +   used by IBX. This has now been fixed.
639 +
640 + 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
641 +   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
642 +   the character sets supported can be updated on a per database basis. That is
643 +   it is possible to add a (Firebird) user defined character set to a database.
644 +
645 + 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
646 +   set supported by Firebird with the API.
647 +
648 + 7. Add missing isc_info_db_read_only to list of decoded Database Information items
649 +   in FBOutputBlock.pas and update test suite to include this item.
650 +
651 + 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
652 +
653 + 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
654 +   library or finding it by disk location, the PATH environment variable is now also set to
655 +   include the FIREBIRD directory. This is to ensure that the correct dlls in the
656 +   firebird client library dependencies are loaded.
657 +
658 + 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
659 +
660 + 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
661 +
662 + 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
663 +
664 + 13. FB30Statement: A check has been added to ensure that all SQL Parameters
665 +    have been given a value (including NULL). Previously, failing to set the
666 +    value of an SQL Parameter could give rise to unpredictable results or
667 +    an SQLDA error.
668 +
669 + 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
670 +
671 + 15. FBAttachment: Avoid string reference count error when processing an Ansistring
672 +    parameter in an array of const passed to IAttachment.OpenCursor, etc.
673 +
674 + 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
675 +    of const passed to IAttachment.OpenCursor, etc.
676 +
677 +
678 + FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
679 +
680 + 1. Change syntax to Mode Delphi
681 +
682 + 2. Change all uses of string type to explicit AnsiString in order to ensure
683 +   compatibility between Delphi and FPC.
684 +
685 + 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
686 +   defined for each interface.
687 +
688 + 4. Generics syntax variations for Delphi added
689 +
690 + 5. PChar replaced with PByte expect where an actual string is being referenced,
691 +   where PAnsiChar is used instead.
692 +
693 + 6. Review of type definitions in IBExternals to ensure Delphi compatibility
694 +
695 + 7. Testsuite updated for Delphi
696 +
697 + FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
698 +
699 + 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
700 +   large blobs and the FB3 API.
701 +
702 + 2. Update Event Handling algorithm to avoid looping due to recreation of the
703 +   event block.
704 +
705 + 3. Avoid invalid XSQLDA error when the only parameter is updated to null
706 +
707 + 4. Array Handling: fix problem with text arrays with character set none. When the
708 +   DB connection has a default character set (e.g. UTF8), an error is raised by
709 +   Firebird if the space allocated is not enough to allow for transliteration, even
710 +   though it is not required for character set none.
711 +
712 + 5. IBUtils: List of reserved words brought up-to-date
713 +
714 + 6. Add ISQL style performance statistics collection to IStatement
715 +
716 + 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
717 +   CREATE DATABASE statement.
718 +
719 + 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
720 +   an array dimension is not mistaken for a named parameter prefix.
721 +
722 + 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
723 +   when Character set is octets. Avoids loss of non printable characters at start of string.
724 +
725 + 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
726 +    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
727 +    to enable stats gathering.
728 +
729 + 11. API Version information added as constants to IB.pas
730 +
731 + 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
732 +
733 + 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
734 +
735   FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
736  
737   1. Initial Release

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