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Revision 315 by tony, Thu Feb 25 11:56:36 2021 UTC vs.
Revision 435 by tony, Mon Jun 3 13:11:42 2024 UTC

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1 < FBINTF Change Log  version          (1.2-0 Build 12476) Wed, 17 Feb 2021 10:13:50 +0000
1 > FBINTF Change Log  version          (1.4-2 Build 15740) Wed, 29 May 2024 15:47:44 +0100
2 >
3 > 1. IBUtils.FormatTimeZoneOffset A zero offset now includes a preceding '+' sign.
4 >
5 > 2. TFBStatement.DoJournaling now exits immediately if journaling is not active. The
6 >   motivation for this is to avoid calling the Firebird API function 'getInfo'
7 >   unnecesarily. This function can return an error if an incompatible parameter type was
8 >   applied to the statement and hence can confuse resolving the bug. Note: a
9 >   specific case is in (e.g.) OpenCursorAtStart method when the array of const includes a
10 >   TDateTime. In this case, the param is set to a floating point type rather than
11 >   a Firebird datetime (array of const loses the distinction).
12 >
13 > 3. TFBAttachment.SetParameters. if an attempt is made to set a parameter with a float
14 >   value, the metadata type is checked to see if the parameter is a Date/Time type. If so then
15 >   the value is assumed to be a TDateTime and the parameter is set using the AsDateTime
16 >   property. Otherwise, the value is assumed to be a floating point type and the AsDouble
17 >   property is used to set the property. This avoids the specific example given above.
18 >
19 > 4. IBHeader (legacy interface only) Definition of Start_Transaction changed to use
20 >   varargs - win64 compatibility issue.
21 >
22 > 5. FB25Blob: last parameter of call to isc_blob_lookup_desc is now set to nil. This
23 >   avoids memory corruption with Firebird 4 when using the legacy interface.
24 >
25 > 6. ISDL interface moved from FB30Array to IB. This is to avoid internal FPC compiler errors
26 >   consequential on the use of generics across units.
27 >
28 > 7. Internal changes necessary to correctly compile and run with FPC 3.3.1 and later.
29 >
30 > 8. Firebird 5 support tested.
31 >
32 > 9. Firebird.pas renamed to FirebirdOOAPI.pas in order to avoid confusion with
33 > version distributed with Firebird.
34 >
35 > FBINTF Change Log  version          (1.4-1 Build 14103) Mon, 27 Nov 2023 14:26:35 +0000
36 >
37 > 1. FBSQLData: ensure that TResults.getSQLData and TResults.GetData use same error
38 >   checks for range checking.
39 >
40 > 2. FB25Client: In GetIBMessage, fb_interpret is now called multiple times such that
41 >   any additional error information is decoded.
42 >
43 > 3. FB25Statement: When changing a param type from Blob sub_type 1 to SQL_TEXT or SQL_VARYING
44 >   charsetid is now preserved and size is set to default blob size. Now aligns with
45 >   FB3 and later.
46 >
47 > 4. DDL and DML string literals are now explicitly set to the connection character
48 >   set rather than the default character set provided by the compiler.
49 >
50 > 5. General tidy up of transliteration functions, now centralised in IBUtils. FPC testing
51 >   now makes use of the RTL fpwidestring unit for support of international character
52 >   sets.
53 >
54 > 6. Database exception handling (see section 9.3 in user guide).
55 >    * For FB3 and later API: Connection Character set now applied to message returned
56 >      by fb_interpret and message then transliterated if necessary to the system character set.
57 >    * For Legacy API: The message character set is guessed as UTF8 unless invalid
58 >      UTF8 characters found when connection character set is assumed. Message then
59 >      transliterated if necessary to system character set.
60 >      Note: this difference of behaviour is because legacy API presents exception messages
61 >      "as is", while FB3 server attempts to transliterate to connection character set.
62 >
63 > FBINTF Change Log  version          (1.4-0 Build 14011) Sat, 05 Aug 2023 11:09:09 +0100
64 >
65 > 1. Support package fbudr added for support of User Defined Routines (UDRs), and package
66 >   fbudrtestbed for client side debugging of UDR libraries.
67 >
68 > 2. Package layout changed with introduction of udr support. IB*.pas files moved from
69 >    root directory to "client". IBHeader moved to "Client".
70 >
71 > 3. Delphi packages: all packages now compile .dcp and .bpi files to either
72 >   fbintf\Win32\Debug or fbintf\Win64\Debug by default. Please remove any pre-existing
73 >   fbintf.dcp and fbintf.bpi files from other locations.
74 >
75 > 4. Client side journaling support added. Interface changes
76 >   IAttachment
77 >    function JournalingActive: boolean;
78 >    function GetJournalOptions: TJournalOptions;
79 >    function StartJournaling(aJournalLogFile: AnsiString): integer; overload;
80 >    function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload;
81 >    function StartJournaling(S: TStream; Options: TJournalOptions): integer; overload;
82 >    procedure StopJournaling(RetainJournal: boolean);
83 >
84 > 5. Transactions may now be given a local transaction name:
85 >   IFirebirdAPI
86 >     function StartTransaction(Attachments: array of IAttachment;
87 >             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
88 >             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit;
89 >             aName: AnsiString=''): ITransaction; overload;
90 >     function StartTransaction(Attachments: array of IAttachment;
91 >             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
92 >             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit;
93 >             aName: AnsiString=''): ITransaction; overload;
94 >
95 >   IAttachment
96 >    function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
97 >    function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
98 >    function StartTransaction(TPB: array of byte;
99 >                              DefaultCompletion: TTransactionCompletion=taCommit;
100 >                              aName: AnsiString=''): ITransaction; overload;
101 >    function StartTransaction(TPB: ITPB;
102 >                              DefaultCompletion: TTransactionCompletion=taCommit;
103 >                              aName: AnsiString=''): ITransaction; overload;
104 >
105 >  ITransaction
106 >    function GetTransactionName: AnsiString;
107 >    procedure SetTransactionName(aValue: AnsiString);
108 >
109 > 6. Additional Transaction information
110 >     ITPB.function AsText: AnsiString; {Returns TPB as a text string}
111 >
112 >   ITransaction
113 >     function GetDefaultCompletion: TTransactionCompletion;
114 >     function GetJournalingActive(attachment: IAttachment): boolean; {attachment must be specified when multi-database transaction}
115 >
116 > 7. New IAttachment helper functions
117 >     function HasTable(aTableName: AnsiString): boolean;
118 >     function HasFunction(aFunctionName: AnsiString): boolean;
119 >     function HasProcedure(aProcName: AnsiString): boolean;
120 >     function GetAttachmentID: integer;
121 >     function GetCharSetID: integer;
122 >
123 > 8. IStatement: if the BatchRowLimit is set to maxint, the maximum possible buffer size
124 >   will be allocated for batch operations.
125 >
126 > 9. IStatement, IColumnMetaData and ISQLParam all now consistently provide:
127 >    function GetStatement: IStatement;
128 >    function GetTransaction: ITransaction;
129 >    function GetAttachment: IAttachment;
130 >
131 > 10. Internal: a more disciplined approach to the handling of Firebird.IReferenceCounted
132 >    interfaces.
133 >
134 > 11. New interface type: IFBNumeric. IFBNumeric is implemented in the unit FBNumeric
135 >    and concentrates all handling of Fixed Point numbers. New ISQLItem and ISQLParam
136 >    functions getAsNumeric and setAsNumeric allow for direct retrival and manipulation
137 >    of numerics without loss of precision.
138 >
139 > 12. TryStrToNumeric and NumericToDouble moved from IBUtils to FBNumeric.
140 >
141 > 13. ISQLParams new method "Clear"
142 >
143 > 14. Connection Info (e.g. ODS Version, Remote Protocol) now retrieved on first
144 >    request rather than on attachment connect.
145 >
146 > 15. IStatus.IBDataBaseErrorMessages now defaults to [ShowIBMessage]. This reflects the
147 >    fact that SQLCodes are soon to be deprecated. In the future, the other options
148 >    will be silently ignored if SQLCode support is not present in the Firebird
149 >    Client library.
150 >
151 > 16. ITransaction changes Rollback and Commit from procedures to functions:
152 >      function Commit(Force: boolean=false): TTrCompletionState;
153 >      function Rollback(Force: boolean=false): TTrCompletionState;
154 >
155 >    Specifically, this is to allow the functions to report back a failed commit or
156 >    rollback when Force = true. In the case, the transaction handle has been
157 >    released, while the transaction remains in limbo.
158 >
159 > 17. IAttachment ExecImmediate.
160 >    When the transaction parameters are provided as an array of const and the
161 >    statement fails, the transaction is rolledback (forced) before the exception
162 >    is raised.
163 >
164 > 18. In Firebird 3 and later API: the status vector is now a thread var, as was
165 >    already the case with the legacy API. Avoids problems when calling underlying
166 >    Firebird API in multiple threads.
167 >
168 > 19. IBUtils: TSQLXMLReader: "string" type changed to "AnsiString" for compatibility
169 >    reasons.
170 >
171 > 20. IDBInformation.DecodeVersionString now supported isc_info_firebird_version.
172 >
173 > 21. TSQLXMLReader: handle 'blob' as a reserved word
174 >
175 > 22. ISQLParam.SetAsVariant now accepts a vartype of varUString (UnicodeString).
176 >
177 >
178 > FBINTF Change Log  version          (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
179 >
180 > 1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
181 >
182 > 2. Remove constraint in IAttachment.HasScollableCursors that returned false when
183 >   using remote protocol. Scrollable cursors with remote database expected to
184 >   be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
185 >   a not supported error.
186 >
187 > 3. IStatement: new function;
188 >    TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
189 >    TStatementFlags = set of TStatementFlag;
190 >    function GetFlags: TStatementFlags;
191 >
192 > 4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
193 >   compatibility.
194 >   In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
195 >   type changes from ExecProcedure to Select. So that ExecuteQuery can continue
196 >   to be used with Update...Retruning statements that return a singleton row,
197 >   instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
198 >   it will open the cursor and return the first row only.
199 >
200 > 5. ITransaction: new functions:
201 >    function GetIsReadOnly: boolean;
202 >    function GetTransactionID: integer;
203 >    function GetTrInformation(Requests: array of byte): ITrInformation; overload;
204 >    function GetTrInformation(Request: byte): ITrInformation; overload;
205 >
206 >   The latter two return the Transaction Information block. The first two extract
207 >   information the Transaction Information block
208 >
209 > 6. New function TSQLTokeniser.ReadCharacters
210 >   Used internally.
211 >
212 > 7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
213 >   parameter placeholders instead of named parameters.
214 >
215 > 8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
216 >   transaction handle is now ignored if Rollback/Commit is called with Force=true
217 >
218 > 9. Tidy up of exception handling code. Under the legacy API, fb_interpret is now
219 >   used to get an IBError Message instead of isc_interprete.
220 >
221 > 10. Internal tidyup. Native code now used for decoding integers and the events
222 >    buffer. Avoids dependencies on fbclient functions isc_portable_integer,
223 >    isc_event_block and isc_event_counts.
224 >
225 > 11. New IAttachment function
226 >     function GetAttachmentID: integer;
227 >
228 > 12. Internal changes to TFBClientAPI, TFBAttachment and TFBTransaction and TFB30
229 >    subclasses to enable UDR support.
230 >
231 > FBINTF Change Log  version          (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
232 >
233 > 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
234 >
235 > 2. IStatement: new methods:
236 >    procedure SetStaleReferenceChecks(Enable:boolean); {default true}
237 >    function GetStaleReferenceChecks: boolean;
238 >
239 >   In previous versions, stale reference checks were always enabled. This allows the
240 >   user to disable them on a per statement basis. Note this can risk out-of-date
241 >   statement BLR. See User Guide.
242 >
243 > 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
244 >   stored procedure and hence avoids replacing named parameters within a containing
245 >   BEGIN..END block.
246 >
247 > 4. ISQLParam: using a string value to set an integer field with a scale factor of
248 >   zero is now treated as a special case to avoid the risk of floating point
249 >   rounding errors affecting pure integers.
250 >
251 > 5. ISQLParam:  Review and tidy-up of SetAsString for numeric types.
252 >
253 > 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
254 >   SQL Parameter metadata (methods moved from ISQLParam).
255 >
256 > 7. ISQLParam: new method
257 >     function getColMetadata: IParamMetaData;
258 >   This instance of IParamMetaData returns the original column metadata which is unmutable.
259 >   Note: ISQLParam metadata can change after a parameter value has been set e.g when
260 >   setting a VARCHAR column to an integer value.
261 >
262 > 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
263 >    procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
264 >   also IAttachment:
265 >    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
266 >    function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
267 >    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
268 >                       aSQLDialect: integer; GenerateParamNames: boolean=false;
269 >                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
270 >    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
271 >                       GenerateParamNames: boolean=false;
272 >                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
273 >
274 > 9. Support for scrollable cursors added. New/updated methods:
275 >   IAttachment:
276 >    function HasScollableCursors: boolean;
277 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
278 >                             Scrollable: boolean=false): IResultSet; overload;
279 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
280 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
281 >                             params: array of const): IResultSet; overload;
282 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
283 >                             params: array of const): IResultSet; overload;
284 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
285 >                             params: array of const): IResultSet; overload;
286 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
287 >                             Scrollable: boolean=false): IResultSet; overload;
288 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
289 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
290 >                             params: array of const): IResultSet; overload;
291 >    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
292 >    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
293 >                             params: array of const): IResultSet; overload;
294 >   IStatement:
295 >     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
296 >   IResultSet:
297 >    function FetchPrior: boolean; {fetch previous record}
298 >    function FetchFirst:boolean; {fetch first record}
299 >    function FetchLast: boolean; {fetch last record}
300 >    function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
301 >    function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
302 >    function IsBof: boolean;
303 >
304 > 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
305 >
306 > 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
307 >    may be noticeable when a line separator occurs inside quoted text. The quoted text
308 >    output by the tokeniser will now use the platform specific lineEnding regardless
309 >    of whether the input uses the CRLF or LF as a line separator.
310 >
311 > 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
312 >
313 >
314 > FBINTF Change Log  version          (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
315 >
316 > 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
317 >
318 > 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
319 >   will now be encoded inline (i.e. as part of the parameter buffer) if they are
320 >   shorter than a pre-set limit. Longer values continue to be saved as blobs as a
321 >   separate server interaction. This is intended as a performance optimisation.
322 >
323 >   The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
324 >   IAttachment interface functions:
325 >
326 >    function GetInlineBlobLimit: integer;
327 >    procedure SetInlineBlobLimit(limit: integer);
328 >
329 > 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
330 >   user as the functionality is embedded in the implementation of the IStatement
331 >   interface. Three new functions are defined:
332 >
333 >    procedure AddToBatch;
334 >    function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
335 >    procedure CancelBatch;
336 >    function GetBatchCompletion: IBatchCompletion;
337 >    function GetBatchRowLimit: integer;
338 >    procedure SetBatchRowLimit(aLimit: integer);
339 >
340 >   Also
341 >
342 >    function IsInBatchMode: boolean;        {true after call to execute(eaDefer)}
343 >    function HasBatchMode: boolean;         {true if and only if IBatch Supported}
344 >
345 >   For more information see the User Guide.
346 >
347 > 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
348 >   provided with the EIBInterBaseError now include all three parts.
349 >
350 > 5. Firebird.pas and include files updated to Firebird 4.0.0
351 >
352 > 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
353 >   Returns SQL Statement type as a text string;
354 >
355 > 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
356 >   an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
357 >
358 > FBINTF Change Log  version          (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
359 >
360 > 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
361 >   typo in FB30Statement.pas that caused an unknown parameter error.
362 >
363 > FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
364  
365   1. Imported (Firebird) constants updated for Firebird 4.
366  

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