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ibx/trunk/fbintf/changelog (file contents), Revision 45 by tony, Tue Dec 6 10:33:46 2016 UTC vs.
ibx/branches/journaling/fbintf/changelog (file contents), Revision 362 by tony, Tue Dec 7 13:27:39 2021 UTC

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1 + FBINTF Change Log  version          (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
2 +
3 + 1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
4 +
5 + 2. Remove constraint in IAttachment.HasScollableCursors that returned false when
6 +   using remote protocol. Scrollable cursors with remote database expected to
7 +   be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
8 +   a not supported error.
9 +
10 + 3. IStatement: new function;
11 +    TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
12 +    TStatementFlags = set of TStatementFlag;
13 +    function GetFlags: TStatementFlags;
14 +
15 + 4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
16 +   compatibility.
17 +   In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
18 +   type changes from ExecProcedure to Select. So that ExecuteQuery can continue
19 +   to be used with Update...Retruning statements that return a singleton row,
20 +   instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
21 +   it will open the cursor and return the first row only.
22 +
23 + 5. ITransaction: new functions:
24 +    function GetIsReadOnly: boolean;
25 +    function GetTransactionID: integer;
26 +    function GetTrInformation(Requests: array of byte): ITrInformation; overload;
27 +    function GetTrInformation(Request: byte): ITrInformation; overload;
28 +
29 +   The latter two return the Transaction Information block. The first two extract
30 +   information the Transaction Information block
31 +
32 + 6. New function TSQLTokeniser.ReadCharacters
33 +   Used internally.
34 +
35 + 7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
36 +   parameter placeholders instead of named parameters.
37 +
38 + 8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
39 +   transaction handle is now ignored if Rollback/Commit is called with Force=true
40 +
41 + FBINTF Change Log  version          (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
42 +
43 + 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
44 +
45 + 2. IStatement: new methods:
46 +    procedure SetStaleReferenceChecks(Enable:boolean); {default true}
47 +    function GetStaleReferenceChecks: boolean;
48 +
49 +   In previous versions, stale reference checks were always enabled. This allows the
50 +   user to disable them on a per statement basis. Note this can risk out-of-date
51 +   statement BLR. See User Guide.
52 +
53 + 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
54 +   stored procedure and hence avoids replacing named parameters within a containing
55 +   BEGIN..END block.
56 +
57 + 4. ISQLParam: using a string value to set an integer field with a scale factor of
58 +   zero is now treated as a special case to avoid the risk of floating point
59 +   rounding errors affecting pure integers.
60 +
61 + 5. ISQLParam:  Review and tidy-up of SetAsString for numeric types.
62 +
63 + 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
64 +   SQL Parameter metadata (methods moved from ISQLParam).
65 +
66 + 7. ISQLParam: new method
67 +     function getColMetadata: IParamMetaData;
68 +   This instance of IParamMetaData returns the original column metadata which is unmutable.
69 +   Note: ISQLParam metadata can change after a parameter value has been set e.g when
70 +   setting a VARCHAR column to an integer value.
71 +
72 + 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
73 +    procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
74 +   also IAttachment:
75 +    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
76 +    function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
77 +    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
78 +                       aSQLDialect: integer; GenerateParamNames: boolean=false;
79 +                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
80 +    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
81 +                       GenerateParamNames: boolean=false;
82 +                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
83 +
84 + 9. Support for scrollable cursors added. New/updated methods:
85 +   IAttachment:
86 +    function HasScollableCursors: boolean;
87 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
88 +                             Scrollable: boolean=false): IResultSet; overload;
89 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
90 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
91 +                             params: array of const): IResultSet; overload;
92 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
93 +                             params: array of const): IResultSet; overload;
94 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
95 +                             params: array of const): IResultSet; overload;
96 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
97 +                             Scrollable: boolean=false): IResultSet; overload;
98 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
99 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
100 +                             params: array of const): IResultSet; overload;
101 +    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
102 +    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
103 +                             params: array of const): IResultSet; overload;
104 +   IStatement:
105 +     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
106 +   IResultSet:
107 +    function FetchPrior: boolean; {fetch previous record}
108 +    function FetchFirst:boolean; {fetch first record}
109 +    function FetchLast: boolean; {fetch last record}
110 +    function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
111 +    function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
112 +    function IsBof: boolean;
113 +
114 + 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
115 +
116 + 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
117 +    may be noticeable when a line separator occurs inside quoted text. The quoted text
118 +    output by the tokeniser will now use the platform specific lineEnding regardless
119 +    of whether the input uses the CRLF or LF as a line separator.
120 +
121 + 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
122 +
123 +
124 + FBINTF Change Log  version          (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
125 +
126 + 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
127 +
128 + 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
129 +   will now be encoded inline (i.e. as part of the parameter buffer) if they are
130 +   shorter than a pre-set limit. Longer values continue to be saved as blobs as a
131 +   separate server interaction. This is intended as a performance optimisation.
132 +
133 +   The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
134 +   IAttachment interface functions:
135 +
136 +    function GetInlineBlobLimit: integer;
137 +    procedure SetInlineBlobLimit(limit: integer);
138 +
139 + 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
140 +   user as the functionality is embedded in the implementation of the IStatement
141 +   interface. Three new functions are defined:
142 +
143 +    procedure AddToBatch;
144 +    function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
145 +    procedure CancelBatch;
146 +    function GetBatchCompletion: IBatchCompletion;
147 +    function GetBatchRowLimit: integer;
148 +    procedure SetBatchRowLimit(aLimit: integer);
149 +
150 +   Also
151 +
152 +    function IsInBatchMode: boolean;        {true after call to execute(eaDefer)}
153 +    function HasBatchMode: boolean;         {true if and only if IBatch Supported}
154 +
155 +   For more information see the User Guide.
156 +
157 + 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
158 +   provided with the EIBInterBaseError now include all three parts.
159 +
160 + 5. Firebird.pas and include files updated to Firebird 4.0.0
161 +
162 + 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
163 +   Returns SQL Statement type as a text string;
164 +
165 + 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
166 +   an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
167 +
168 + FBINTF Change Log  version          (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
169 +
170 + 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
171 +   typo in FB30Statement.pas that caused an unknown parameter error.
172 +
173 + FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
174 +
175 + 1. Imported (Firebird) constants updated for Firebird 4.
176 +
177 + 2. Firebird.pas from Firebird 4 integrated into source code tree.
178 +
179 + 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
180 +
181 + 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
182 +
183 + 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
184 +   QueryInterface may be used to coerce this interface from IFirebirdAPI. The
185 +   interface provides a single method "function GetIMasterIntf: IMaster". This provides
186 +   type safe access to the Firebird IMaster interface and avoids the need to turn
187 +   off object checks when coercing "function GetIMaster: TObject" to IMaster.
188 +
189 + 6. New IFirebirdAPI Calls:
190 +    function HasLocalTZDB: boolean;
191 +    function HasTimeZoneSupport: boolean;
192 +    function HasExtendedTZSupport: boolean;
193 +    procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
194 +    function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
195 +
196 + 7. New IAttachment Calls:
197 +    function HasDecFloatSupport: boolean;
198 +    function GetTimeZoneServices: ITimeZoneServices;
199 +    function HasTimeZoneSupport: boolean;
200 +
201 + 8. New Interface ITimeZoneServices.
202 +
203 + 9. New ISQLData API Calls:
204 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
205 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
206 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
207 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
208 +    function GetAsUTCDateTime: TDateTime;
209 +    function GetAsBCD: tBCD;
210 +
211 + 10. New ISQLParam API Calls
212 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
213 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
214 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
215 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
216 +    function GetAsUTCDateTime: TDateTime;
217 +    function GetAsBCD: tBCD;
218 +    function GetStatement: IStatement;
219 +    function GetTransaction: ITransaction;
220 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
221 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
222 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
223 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
224 +    procedure SetAsUTCDateTime(aUTCTime: TDateTime);
225 +    procedure SetAsBcd(aValue: tBCD);
226 +
227 + 11. New IArray API Calls
228 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
229 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
230 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
231 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
232 +    function GetAsUTCDateTime(index: array of integer): TDateTime;
233 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
234 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
235 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
236 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
237 +
238 + 12. Utility functions in IBUtils
239 +    function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
240 +              var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
241 +    procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
242 +    function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
243 +    function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
244 +    function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
245 +    function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
246 +
247 + 13. IDPB, ITPB and ISPB: new interface method
248 +      function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
249 +    This is used to add a parameter block item by the string equivalent of its
250 +    symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
251 +
252 + 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
253 +      function getParamTypeName: AnsiString;
254 +
255 + 15. fb_shutdown now called before unloading Firebird library. This can avoid a
256 +     SIGEVENT error when a programme using the embeded server is unloaded.
257 +
258 + FBINTF Change Log  version          (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
259 +
260 + 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
261 +   with a Firebrid 3 client library.
262 +
263 + 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
264 +    If a client library path is not explicitly provided and the FIREBIRD environment
265 +    variable is set then the directory given by this variable and any 'lib' subdirectory
266 +    are searched for the Firebird client library. Only if none is found, is the default
267 +    client library used.
268 +
269 + 3.  IUtil.FormatStatus now used to format error messages when using new API
270 +
271 + 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
272 +
273 + 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
274 +    returned using GetAsString and the string codepage is UTF8, the string is truncated so
275 +    that the byte length corresponds to the number of characters specified for the column.
276 +    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
277 +    correct behaviour but may affect some implementations that relied upon automatic
278 +    trimming of trailing white space.
279 +
280 + 6.  New IFirebirdAPI Calls:
281 +      function GetClientMajor: integer;
282 +      function GetClientMinor: integer;
283 +
284 + 7.  IColumnMetaData and IArrayMetaData: new method
285 +      function GetCharSetWidth: integer;
286 +
287 + FBINTF Change Log  version          (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
288 +
289 + 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
290 +   case sensitive
291 +
292 + 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
293 +
294 + 3. New API Calls:
295 +        IColumnMetaData.GetStatement
296 +        IColumnMetaData.GetTransaction
297 +        ISQLData.GetStrDataLength
298 +        IResults.GetStatement
299 +        IAttachment.OpenBlob (using Blob metadata)
300 +        IAttachment.OpenArray (using array metadata)
301 +
302 + 4. FBMessages: removal of unused messages
303 +
304 + 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
305 +
306 + 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
307 +
308 + FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
309 +
310 + 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
311 +   where the second character of the parameter name is a numeric.
312 +
313 + 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
314 +   This returns the isc_version connection information as one or more lines.
315 +   This is the same information as returned by isql with the -z option.
316 +
317 + 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
318 +   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
319 +   compiler option then the Firebird 3 API is no longer compiled in.
320 +
321 + 4. IColumnMetaData: new method.
322 +
323 +   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
324 +                        dfDateTime,   {SQL DATETIME}
325 +                        dfTime);
326 +
327 +   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
328 +
329 +   This returns the max. number of characters returned by the "AsString" method
330 +   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
331 +
332 + 5. Additional argument for IAttachment.PrepareWithNamedParameters -
333 +     CaseSensitiveParams: boolean = false
334 +
335 +   If this argument is set to true then SQL parameter names are assumed to be case
336 +   sensitive and must be referenced (using ISQLParams.ByName) using the case
337 +   sensitive name.
338 +
339 + 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
340 +   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
341 +   .AsCurrency) and then subsequently to update the value to a non-numeric string
342 +   using .AsString.
343 +
344 +
345 +
346 + FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
347 +
348 + 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
349 +
350 + 2. Restrict IsMultiThread check to Unix only for compatibility with
351 +   https://bugs.freepascal.org/view.php?id=30535
352 +
353 + 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
354 +   named parameters and is intended to avoid problems with (e.g.) Execute Block
355 +   and processing internal parameters as statement parameters.
356 +
357 + 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
358 +   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
359 +
360 + 5. New function added to IB.pas
361 +
362 +   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
363 +
364 +   This allows a Firebird Library to be loaded from an explicit path. use the
365 +   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
366 +   the library. It is possible to load Firebird libraries from different locations
367 +   simultaneously, each with a distinct IFirebirdAPI.
368 +
369 + FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
370 +
371 + 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
372 +   program compiled with -CR command line switch.
373 +
374 + 2. IServiceManager additions (informational):
375 +    function getProtocol: TProtocol;
376 +    function getPortNo: AnsiString;
377 +
378 + 3. IServiceManager improved error handling. Interfaces changed:
379 +    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
380 +    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
381 +    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
382 +
383 + 4. IAttachment addition (informational)
384 +    function GetSecurityDatabase: AnsiString;
385 +
386 + 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
387 +   thus now returns accumulated stats for a select statement from opening a cursor
388 +   up to the last fetch.
389 +
390 + 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
391 +   the problem.
392 +
393 + 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
394 +   replaces deprecated "comp" type.
395 +
396 + 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
397 +
398 + 11. URL Connection Strings: inet4 and inet6 now recognised.
399 +
400 + 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
401 +
402 + 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
403 +
404 +
405 + FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
406 +
407 + 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
408 +
409 + 2. IAttachment: add two new methods
410 +     function HasDefaultCharSet: boolean;
411 +     function GetDefaultCharSetID: integer;
412 +
413 +   These return, respectively, true if a connection default character set was
414 +   specified and the character set id of the connection default character set.
415 +   The DefaultCharSetID is cached when the connection is opened and hence does not
416 +   require a database lookup.
417 +
418 + 3. Avoid exception when a text blob is a stored procedure parameter.
419 +
420 + 4. Update test suite to include a test for a stored proc returning a text blob.
421 +
422 + 5. IAttachment: add
423 +      function GetRemoteProtocol: AnsiString;
424 +      function GetODSMajorVersion: integer;
425 +      function GetODSMinorVersion: integer;
426 +      function GetAuthenticationMethod: AnsiString;
427 +
428 +   These results are cached when the connection is opened and hence do not
429 +   require a database lookup.
430 +
431 + 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
432 +   connect string used to create/connect to the database.
433 +
434 + 7. IAttachment: Create Database using SQL statement. The username and password
435 +   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
436 +   It is now possible to use IAttachment disconnect/connect to reconnect to
437 +   a database for which the initial connection was established by a create
438 +   database sql statement. Available in FPC only.
439 +
440 + 8. Update Test 1 to test 5, 6 and 7 above.
441 +
442 + 9. IBUtils code tidy up.
443 +
444 + 10. Parameter Block interfaces "find" method. As documented, this should have
445 +   returned a nil interface when the item could not be found. Instead, an empty
446 +   interface item was returned. "Find" now works as documented and will return
447 +   a nil interface if the item cannot be found.
448 +
449 + 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
450 +
451 + 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
452 +    requests with additional parameters. This is to enable support for fb_info_page_contents
453 +    (return of page contents). Response to fb_info_page_contents returned as
454 +    a string with code page CP_NONE.
455 +
456 + 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
457 +    test suite updated.
458 +
459 + 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
460 +    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
461 +
462 + 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
463 +    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
464 +    default connection port to be specified.
465 +
466 + FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
467 +
468 + 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
469 +   Scale is no longer ignored.
470 +
471 + 2. Fix issues with setting SQL Param values using SetAsString with Date values
472 +   not in locale format but which are recognised by Firebird. Date values that
473 +   cannot be converted to a string using Pascal library are now passed through
474 +   to Firebird as Text Strings.
475 +
476 + 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
477 +   UTF8 and not UNICODE_FSS.
478 +
479 + 4. Charset ID problem. When using Firebird 3, with no default database character set
480 +   and a column has a non-default collation specified, an incorrect character set
481 +   id was being reported that could result in a 'division by zero' error when
482 +   used by IBX. This has now been fixed.
483 +
484 + 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
485 +   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
486 +   the character sets supported can be updated on a per database basis. That is
487 +   it is possible to add a (Firebird) user defined character set to a database.
488 +
489 + 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
490 +   set supported by Firebird with the API.
491 +
492 + 7. Add missing isc_info_db_read_only to list of decoded Database Information items
493 +   in FBOutputBlock.pas and update test suite to include this item.
494 +
495 + 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
496 +
497 + 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
498 +   library or finding it by disk location, the PATH environment variable is now also set to
499 +   include the FIREBIRD directory. This is to ensure that the correct dlls in the
500 +   firebird client library dependencies are loaded.
501 +
502 + 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
503 +
504 + 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
505 +
506 + 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
507 +
508 + 13. FB30Statement: A check has been added to ensure that all SQL Parameters
509 +    have been given a value (including NULL). Previously, failing to set the
510 +    value of an SQL Parameter could give rise to unpredictable results or
511 +    an SQLDA error.
512 +
513 + 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
514 +
515 + 15. FBAttachment: Avoid string reference count error when processing an Ansistring
516 +    parameter in an array of const passed to IAttachment.OpenCursor, etc.
517 +
518 + 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
519 +    of const passed to IAttachment.OpenCursor, etc.
520 +
521 +
522 + FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
523 +
524 + 1. Change syntax to Mode Delphi
525 +
526 + 2. Change all uses of string type to explicit AnsiString in order to ensure
527 +   compatibility between Delphi and FPC.
528 +
529 + 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
530 +   defined for each interface.
531 +
532 + 4. Generics syntax variations for Delphi added
533 +
534 + 5. PChar replaced with PByte expect where an actual string is being referenced,
535 +   where PAnsiChar is used instead.
536 +
537 + 6. Review of type definitions in IBExternals to ensure Delphi compatibility
538 +
539 + 7. Testsuite updated for Delphi
540 +
541 + FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
542 +
543 + 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
544 +   large blobs and the FB3 API.
545 +
546 + 2. Update Event Handling algorithm to avoid looping due to recreation of the
547 +   event block.
548 +
549 + 3. Avoid invalid XSQLDA error when the only parameter is updated to null
550 +
551 + 4. Array Handling: fix problem with text arrays with character set none. When the
552 +   DB connection has a default character set (e.g. UTF8), an error is raised by
553 +   Firebird if the space allocated is not enough to allow for transliteration, even
554 +   though it is not required for character set none.
555 +
556 + 5. IBUtils: List of reserved words brought up-to-date
557 +
558 + 6. Add ISQL style performance statistics collection to IStatement
559 +
560 + 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
561 +   CREATE DATABASE statement.
562 +
563 + 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
564 +   an array dimension is not mistaken for a named parameter prefix.
565 +
566 + 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
567 +   when Character set is octets. Avoids loss of non printable characters at start of string.
568 +
569 + 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
570 +    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
571 +    to enable stats gathering.
572 +
573 + 11. API Version information added as constants to IB.pas
574 +
575 + 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
576 +
577 + 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
578 +
579   FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
580  
581   1. Initial Release

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