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ibx/trunk/fbintf/changelog (file contents), Revision 291 by tony, Fri Apr 17 10:26:08 2020 UTC vs.
ibx/branches/udr/changelog (file contents), Revision 377 by tony, Mon Jan 10 09:55:56 2022 UTC

# Line 1 | Line 1
1 + FBINTF Change Log  version          (1.4-0 Build 12952) Tue, 07 Dec 2021 11:53:46 +0000
2 +
3 + 1. Client side journaling support added. Interface changes
4 +   IAttachment
5 +    function JournalingActive: boolean;
6 +    function GetJournalOptions: TJournalOptions;
7 +    function StartJournaling(aJournalLogFile: AnsiString): integer; overload;
8 +    function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload;
9 +    function StartJournaling(S: TStream; Options: TJournalOptions): integer; overload;
10 +    procedure StopJournaling(RetainJournal: boolean);
11 +
12 +
13 + 2. Transactions may now be given a local transaction name:
14 +   IFirebirdAPI
15 +     function StartTransaction(Attachments: array of IAttachment;
16 +             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
17 +             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit;
18 +             aName: AnsiString=''): ITransaction; overload;
19 +     function StartTransaction(Attachments: array of IAttachment;
20 +             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
21 +             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit;
22 +             aName: AnsiString=''): ITransaction; overload;
23 +
24 +   IAttachment
25 +    function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
26 +    function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
27 +    function StartTransaction(TPB: array of byte;
28 +                              DefaultCompletion: TTransactionCompletion=taCommit;
29 +                              aName: AnsiString=''): ITransaction; overload;
30 +    function StartTransaction(TPB: ITPB;
31 +                              DefaultCompletion: TTransactionCompletion=taCommit;
32 +                              aName: AnsiString=''): ITransaction; overload;
33 +
34 +  ITransaction
35 +    function GetTransactionName: AnsiString;
36 +    procedure SetTransactionName(aValue: AnsiString);
37 +
38 + 3. Additional Transaction information
39 +     ITPB.function AsText: AnsiString; {Returns TPB as a text string}
40 +
41 +   ITransaction
42 +     function GetDefaultCompletion: TTransactionCompletion;
43 +     function GetJournalingActive(attachment: IAttachment): boolean; {attachment must be specified when multi-database transaction}
44 +
45 + 4. New IAttachment helper functions
46 +     function HasTable(aTableName: AnsiString): boolean;
47 +     function HasFunction(aFunctionName: AnsiString): boolean;
48 +     function HasProcedure(aProcName: AnsiString): boolean;
49 +     function GetAttachmentID: integer;
50 +     function GetCharSetID: integer;
51 +
52 + 5. IStatement: if the BatchRowLimit is set to maxint, the maximum possible buffer size
53 +   will be allocted for batch operations.
54 +
55 + 6. IStatement, IColumnMetaData and ISQLParam all now consistently provide:
56 +    function GetStatement: IStatement;
57 +    function GetTransaction: ITransaction;
58 +    function GetAttachment: IAttachment;
59 +
60 + 7. Internal: a more disciplined approach to the handling of Firebird.IReferenceCounted
61 +   interfaces.
62 +
63 + 8. New interface type: IFBNumeric. IFBNumeric is implemented in the unit FBNumeric
64 +   and concentrates all handling of Fixed Point numbers. New ISQLItem and ISQLParam
65 +   functions getAsNumeric and setAsNumeric allow for direct retrival and manipulation
66 +   of numerics without loss of precision.
67 +
68 + 9. TryStrToNumeric and NumericToDouble moved from IBUtils to FBNumeric.
69 +
70 + 10. ISQLParams new method "Clear"
71 +
72 + 11. Support package fbudr added for support of User Defined Routines (UDRs).
73 +
74 + 12. Package layout changed with introduction of udr support. IB*.pas files moved from
75 +    root directory to "client". IBHeader move to "Client".
76 +
77 + 13. Connection Info (e.g. ODS Version, Remote Protocol) now retrieved on first
78 +    request rather than on attachment connect.
79 +
80 +
81 + FBINTF Change Log  version          (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
82 +
83 + 1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
84 +
85 + 2. Remove constraint in IAttachment.HasScollableCursors that returned false when
86 +   using remote protocol. Scrollable cursors with remote database expected to
87 +   be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
88 +   a not supported error.
89 +
90 + 3. IStatement: new function;
91 +    TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
92 +    TStatementFlags = set of TStatementFlag;
93 +    function GetFlags: TStatementFlags;
94 +
95 + 4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
96 +   compatibility.
97 +   In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
98 +   type changes from ExecProcedure to Select. So that ExecuteQuery can continue
99 +   to be used with Update...Retruning statements that return a singleton row,
100 +   instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
101 +   it will open the cursor and return the first row only.
102 +
103 + 5. ITransaction: new functions:
104 +    function GetIsReadOnly: boolean;
105 +    function GetTransactionID: integer;
106 +    function GetTrInformation(Requests: array of byte): ITrInformation; overload;
107 +    function GetTrInformation(Request: byte): ITrInformation; overload;
108 +
109 +   The latter two return the Transaction Information block. The first two extract
110 +   information the Transaction Information block
111 +
112 + 6. New function TSQLTokeniser.ReadCharacters
113 +   Used internally.
114 +
115 + 7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
116 +   parameter placeholders instead of named parameters.
117 +
118 + 8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
119 +   transaction handle is now ignored if Rollback/Commit is called with Force=true
120 +
121 + 9. Tidy up of exception handling code. Under the legacy API, fb_interpret is now
122 +   used to get an IBError Message instead of isc_interprete.
123 +
124 + 10. Internal tidyup. Native code now used for decoding integers and the events
125 +    buffer. Avoids dependencies on fbclient functions isc_portable_integer,
126 +    isc_event_block and isc_event_counts.
127 +
128 + 11. New IAttachment function
129 +     function GetAttachmentID: integer;
130 +
131 + 12. Internal changes to TFBClientAPI, TFBAttachment and TFBTransaction and TFB30
132 +    subclasses to enable UDR support.
133 +
134 + FBINTF Change Log  version          (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
135 +
136 + 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
137 +
138 + 2. IStatement: new methods:
139 +    procedure SetStaleReferenceChecks(Enable:boolean); {default true}
140 +    function GetStaleReferenceChecks: boolean;
141 +
142 +   In previous versions, stale reference checks were always enabled. This allows the
143 +   user to disable them on a per statement basis. Note this can risk out-of-date
144 +   statement BLR. See User Guide.
145 +
146 + 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
147 +   stored procedure and hence avoids replacing named parameters within a containing
148 +   BEGIN..END block.
149 +
150 + 4. ISQLParam: using a string value to set an integer field with a scale factor of
151 +   zero is now treated as a special case to avoid the risk of floating point
152 +   rounding errors affecting pure integers.
153 +
154 + 5. ISQLParam:  Review and tidy-up of SetAsString for numeric types.
155 +
156 + 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
157 +   SQL Parameter metadata (methods moved from ISQLParam).
158 +
159 + 7. ISQLParam: new method
160 +     function getColMetadata: IParamMetaData;
161 +   This instance of IParamMetaData returns the original column metadata which is unmutable.
162 +   Note: ISQLParam metadata can change after a parameter value has been set e.g when
163 +   setting a VARCHAR column to an integer value.
164 +
165 + 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
166 +    procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
167 +   also IAttachment:
168 +    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
169 +    function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
170 +    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
171 +                       aSQLDialect: integer; GenerateParamNames: boolean=false;
172 +                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
173 +    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
174 +                       GenerateParamNames: boolean=false;
175 +                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
176 +
177 + 9. Support for scrollable cursors added. New/updated methods:
178 +   IAttachment:
179 +    function HasScollableCursors: boolean;
180 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
181 +                             Scrollable: boolean=false): IResultSet; overload;
182 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
183 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
184 +                             params: array of const): IResultSet; overload;
185 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
186 +                             params: array of const): IResultSet; overload;
187 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
188 +                             params: array of const): IResultSet; overload;
189 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
190 +                             Scrollable: boolean=false): IResultSet; overload;
191 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
192 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
193 +                             params: array of const): IResultSet; overload;
194 +    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
195 +    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
196 +                             params: array of const): IResultSet; overload;
197 +   IStatement:
198 +     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
199 +   IResultSet:
200 +    function FetchPrior: boolean; {fetch previous record}
201 +    function FetchFirst:boolean; {fetch first record}
202 +    function FetchLast: boolean; {fetch last record}
203 +    function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
204 +    function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
205 +    function IsBof: boolean;
206 +
207 + 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
208 +
209 + 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
210 +    may be noticeable when a line separator occurs inside quoted text. The quoted text
211 +    output by the tokeniser will now use the platform specific lineEnding regardless
212 +    of whether the input uses the CRLF or LF as a line separator.
213 +
214 + 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
215 +
216 +
217 + FBINTF Change Log  version          (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
218 +
219 + 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
220 +
221 + 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
222 +   will now be encoded inline (i.e. as part of the parameter buffer) if they are
223 +   shorter than a pre-set limit. Longer values continue to be saved as blobs as a
224 +   separate server interaction. This is intended as a performance optimisation.
225 +
226 +   The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
227 +   IAttachment interface functions:
228 +
229 +    function GetInlineBlobLimit: integer;
230 +    procedure SetInlineBlobLimit(limit: integer);
231 +
232 + 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
233 +   user as the functionality is embedded in the implementation of the IStatement
234 +   interface. Three new functions are defined:
235 +
236 +    procedure AddToBatch;
237 +    function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
238 +    procedure CancelBatch;
239 +    function GetBatchCompletion: IBatchCompletion;
240 +    function GetBatchRowLimit: integer;
241 +    procedure SetBatchRowLimit(aLimit: integer);
242 +
243 +   Also
244 +
245 +    function IsInBatchMode: boolean;        {true after call to execute(eaDefer)}
246 +    function HasBatchMode: boolean;         {true if and only if IBatch Supported}
247 +
248 +   For more information see the User Guide.
249 +
250 + 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
251 +   provided with the EIBInterBaseError now include all three parts.
252 +
253 + 5. Firebird.pas and include files updated to Firebird 4.0.0
254 +
255 + 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
256 +   Returns SQL Statement type as a text string;
257 +
258 + 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
259 +   an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
260 +
261 + FBINTF Change Log  version          (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
262 +
263 + 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
264 +   typo in FB30Statement.pas that caused an unknown parameter error.
265 +
266 + FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
267 +
268 + 1. Imported (Firebird) constants updated for Firebird 4.
269 +
270 + 2. Firebird.pas from Firebird 4 integrated into source code tree.
271 +
272 + 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
273 +
274 + 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
275 +
276 + 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
277 +   QueryInterface may be used to coerce this interface from IFirebirdAPI. The
278 +   interface provides a single method "function GetIMasterIntf: IMaster". This provides
279 +   type safe access to the Firebird IMaster interface and avoids the need to turn
280 +   off object checks when coercing "function GetIMaster: TObject" to IMaster.
281 +
282 + 6. New IFirebirdAPI Calls:
283 +    function HasLocalTZDB: boolean;
284 +    function HasTimeZoneSupport: boolean;
285 +    function HasExtendedTZSupport: boolean;
286 +    procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
287 +    function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
288 +
289 + 7. New IAttachment Calls:
290 +    function HasDecFloatSupport: boolean;
291 +    function GetTimeZoneServices: ITimeZoneServices;
292 +    function HasTimeZoneSupport: boolean;
293 +
294 + 8. New Interface ITimeZoneServices.
295 +
296 + 9. New ISQLData API Calls:
297 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
298 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
299 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
300 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
301 +    function GetAsUTCDateTime: TDateTime;
302 +    function GetAsBCD: tBCD;
303 +
304 + 10. New ISQLParam API Calls
305 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
306 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
307 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
308 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
309 +    function GetAsUTCDateTime: TDateTime;
310 +    function GetAsBCD: tBCD;
311 +    function GetStatement: IStatement;
312 +    function GetTransaction: ITransaction;
313 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
314 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
315 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
316 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
317 +    procedure SetAsUTCDateTime(aUTCTime: TDateTime);
318 +    procedure SetAsBcd(aValue: tBCD);
319 +
320 + 11. New IArray API Calls
321 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
322 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
323 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
324 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
325 +    function GetAsUTCDateTime(index: array of integer): TDateTime;
326 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
327 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
328 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
329 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
330 +
331 + 12. Utility functions in IBUtils
332 +    function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
333 +              var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
334 +    procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
335 +    function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
336 +    function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
337 +    function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
338 +    function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
339 +
340 + 13. IDPB, ITPB and ISPB: new interface method
341 +      function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
342 +    This is used to add a parameter block item by the string equivalent of its
343 +    symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
344 +
345 + 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
346 +      function getParamTypeName: AnsiString;
347 +
348 + 15. fb_shutdown now called before unloading Firebird library. This can avoid a
349 +     SIGEVENT error when a programme using the embeded server is unloaded.
350 +
351 + FBINTF Change Log  version          (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
352 +
353 + 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
354 +   with a Firebrid 3 client library.
355 +
356 + 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
357 +    If a client library path is not explicitly provided and the FIREBIRD environment
358 +    variable is set then the directory given by this variable and any 'lib' subdirectory
359 +    are searched for the Firebird client library. Only if none is found, is the default
360 +    client library used.
361 +
362 + 3.  IUtil.FormatStatus now used to format error messages when using new API
363 +
364 + 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
365 +
366 + 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
367 +    returned using GetAsString and the string codepage is UTF8, the string is truncated so
368 +    that the byte length corresponds to the number of characters specified for the column.
369 +    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
370 +    correct behaviour but may affect some implementations that relied upon automatic
371 +    trimming of trailing white space.
372 +
373 + 6.  New IFirebirdAPI Calls:
374 +      function GetClientMajor: integer;
375 +      function GetClientMinor: integer;
376 +
377 + 7.  IColumnMetaData and IArrayMetaData: new method
378 +      function GetCharSetWidth: integer;
379 +
380   FBINTF Change Log  version          (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
381  
382   1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
# Line 8 | Line 387 | FBINTF Change Log  version          (1.1
387   3. New API Calls:
388          IColumnMetaData.GetStatement
389          IColumnMetaData.GetTransaction
390 <        ISQLData.GetStrLength
390 >        ISQLData.GetStrDataLength
391          IResults.GetStatement
392          IAttachment.OpenBlob (using Blob metadata)
393          IAttachment.OpenArray (using array metadata)

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