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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/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
383 +   case sensitive
384 +
385 + 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
386 +
387 + 3. New API Calls:
388 +        IColumnMetaData.GetStatement
389 +        IColumnMetaData.GetTransaction
390 +        ISQLData.GetStrDataLength
391 +        IResults.GetStatement
392 +        IAttachment.OpenBlob (using Blob metadata)
393 +        IAttachment.OpenArray (using array metadata)
394 +
395 + 4. FBMessages: removal of unused messages
396 +
397 + 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
398 +
399 + 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
400 +
401 + FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
402 +
403 + 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
404 +   where the second character of the parameter name is a numeric.
405 +
406 + 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
407 +   This returns the isc_version connection information as one or more lines.
408 +   This is the same information as returned by isql with the -z option.
409 +
410 + 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
411 +   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
412 +   compiler option then the Firebird 3 API is no longer compiled in.
413 +
414 + 4. IColumnMetaData: new method.
415 +
416 +   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
417 +                        dfDateTime,   {SQL DATETIME}
418 +                        dfTime);
419 +
420 +   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
421 +
422 +   This returns the max. number of characters returned by the "AsString" method
423 +   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
424 +
425 + 5. Additional argument for IAttachment.PrepareWithNamedParameters -
426 +     CaseSensitiveParams: boolean = false
427 +
428 +   If this argument is set to true then SQL parameter names are assumed to be case
429 +   sensitive and must be referenced (using ISQLParams.ByName) using the case
430 +   sensitive name.
431 +
432 + 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
433 +   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
434 +   .AsCurrency) and then subsequently to update the value to a non-numeric string
435 +   using .AsString.
436 +
437 +
438 +
439 + FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
440 +
441 + 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
442 +
443 + 2. Restrict IsMultiThread check to Unix only for compatibility with
444 +   https://bugs.freepascal.org/view.php?id=30535
445 +
446 + 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
447 +   named parameters and is intended to avoid problems with (e.g.) Execute Block
448 +   and processing internal parameters as statement parameters.
449 +
450 + 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
451 +   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
452 +
453 + 5. New function added to IB.pas
454 +
455 +   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
456 +
457 +   This allows a Firebird Library to be loaded from an explicit path. use the
458 +   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
459 +   the library. It is possible to load Firebird libraries from different locations
460 +   simultaneously, each with a distinct IFirebirdAPI.
461 +
462 + FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
463 +
464 + 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
465 +   program compiled with -CR command line switch.
466 +
467 + 2. IServiceManager additions (informational):
468 +    function getProtocol: TProtocol;
469 +    function getPortNo: AnsiString;
470 +
471 + 3. IServiceManager improved error handling. Interfaces changed:
472 +    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
473 +    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
474 +    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
475 +
476 + 4. IAttachment addition (informational)
477 +    function GetSecurityDatabase: AnsiString;
478 +
479 + 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
480 +   thus now returns accumulated stats for a select statement from opening a cursor
481 +   up to the last fetch.
482 +
483 + 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
484 +   the problem.
485 +
486 + 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
487 +   replaces deprecated "comp" type.
488 +
489 + 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
490 +
491 + 11. URL Connection Strings: inet4 and inet6 now recognised.
492 +
493 + 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
494 +
495 + 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
496 +
497 +
498 + FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
499 +
500 + 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
501 +
502 + 2. IAttachment: add two new methods
503 +     function HasDefaultCharSet: boolean;
504 +     function GetDefaultCharSetID: integer;
505 +
506 +   These return, respectively, true if a connection default character set was
507 +   specified and the character set id of the connection default character set.
508 +   The DefaultCharSetID is cached when the connection is opened and hence does not
509 +   require a database lookup.
510 +
511 + 3. Avoid exception when a text blob is a stored procedure parameter.
512 +
513 + 4. Update test suite to include a test for a stored proc returning a text blob.
514 +
515 + 5. IAttachment: add
516 +      function GetRemoteProtocol: AnsiString;
517 +      function GetODSMajorVersion: integer;
518 +      function GetODSMinorVersion: integer;
519 +      function GetAuthenticationMethod: AnsiString;
520 +
521 +   These results are cached when the connection is opened and hence do not
522 +   require a database lookup.
523 +
524 + 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
525 +   connect string used to create/connect to the database.
526 +
527 + 7. IAttachment: Create Database using SQL statement. The username and password
528 +   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
529 +   It is now possible to use IAttachment disconnect/connect to reconnect to
530 +   a database for which the initial connection was established by a create
531 +   database sql statement. Available in FPC only.
532 +
533 + 8. Update Test 1 to test 5, 6 and 7 above.
534 +
535 + 9. IBUtils code tidy up.
536 +
537 + 10. Parameter Block interfaces "find" method. As documented, this should have
538 +   returned a nil interface when the item could not be found. Instead, an empty
539 +   interface item was returned. "Find" now works as documented and will return
540 +   a nil interface if the item cannot be found.
541 +
542 + 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
543 +
544 + 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
545 +    requests with additional parameters. This is to enable support for fb_info_page_contents
546 +    (return of page contents). Response to fb_info_page_contents returned as
547 +    a string with code page CP_NONE.
548 +
549 + 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
550 +    test suite updated.
551 +
552 + 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
553 +    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
554 +
555 + 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
556 +    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
557 +    default connection port to be specified.
558 +
559 + FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
560 +
561 + 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
562 +   Scale is no longer ignored.
563 +
564 + 2. Fix issues with setting SQL Param values using SetAsString with Date values
565 +   not in locale format but which are recognised by Firebird. Date values that
566 +   cannot be converted to a string using Pascal library are now passed through
567 +   to Firebird as Text Strings.
568 +
569 + 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
570 +   UTF8 and not UNICODE_FSS.
571 +
572 + 4. Charset ID problem. When using Firebird 3, with no default database character set
573 +   and a column has a non-default collation specified, an incorrect character set
574 +   id was being reported that could result in a 'division by zero' error when
575 +   used by IBX. This has now been fixed.
576 +
577 + 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
578 +   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
579 +   the character sets supported can be updated on a per database basis. That is
580 +   it is possible to add a (Firebird) user defined character set to a database.
581 +
582 + 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
583 +   set supported by Firebird with the API.
584 +
585 + 7. Add missing isc_info_db_read_only to list of decoded Database Information items
586 +   in FBOutputBlock.pas and update test suite to include this item.
587 +
588 + 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
589 +
590 + 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
591 +   library or finding it by disk location, the PATH environment variable is now also set to
592 +   include the FIREBIRD directory. This is to ensure that the correct dlls in the
593 +   firebird client library dependencies are loaded.
594 +
595 + 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
596 +
597 + 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
598 +
599 + 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
600 +
601 + 13. FB30Statement: A check has been added to ensure that all SQL Parameters
602 +    have been given a value (including NULL). Previously, failing to set the
603 +    value of an SQL Parameter could give rise to unpredictable results or
604 +    an SQLDA error.
605 +
606 + 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
607 +
608 + 15. FBAttachment: Avoid string reference count error when processing an Ansistring
609 +    parameter in an array of const passed to IAttachment.OpenCursor, etc.
610 +
611 + 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
612 +    of const passed to IAttachment.OpenCursor, etc.
613 +
614 +
615 + FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
616 +
617 + 1. Change syntax to Mode Delphi
618 +
619 + 2. Change all uses of string type to explicit AnsiString in order to ensure
620 +   compatibility between Delphi and FPC.
621 +
622 + 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
623 +   defined for each interface.
624 +
625 + 4. Generics syntax variations for Delphi added
626 +
627 + 5. PChar replaced with PByte expect where an actual string is being referenced,
628 +   where PAnsiChar is used instead.
629 +
630 + 6. Review of type definitions in IBExternals to ensure Delphi compatibility
631 +
632 + 7. Testsuite updated for Delphi
633 +
634 + FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
635 +
636 + 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
637 +   large blobs and the FB3 API.
638 +
639 + 2. Update Event Handling algorithm to avoid looping due to recreation of the
640 +   event block.
641 +
642 + 3. Avoid invalid XSQLDA error when the only parameter is updated to null
643 +
644 + 4. Array Handling: fix problem with text arrays with character set none. When the
645 +   DB connection has a default character set (e.g. UTF8), an error is raised by
646 +   Firebird if the space allocated is not enough to allow for transliteration, even
647 +   though it is not required for character set none.
648 +
649 + 5. IBUtils: List of reserved words brought up-to-date
650 +
651 + 6. Add ISQL style performance statistics collection to IStatement
652 +
653 + 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
654 +   CREATE DATABASE statement.
655 +
656 + 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
657 +   an array dimension is not mistaken for a named parameter prefix.
658 +
659 + 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
660 +   when Character set is octets. Avoids loss of non printable characters at start of string.
661 +
662 + 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
663 +    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
664 +    to enable stats gathering.
665 +
666 + 11. API Version information added as constants to IB.pas
667 +
668 + 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
669 +
670 + 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
671 +
672   FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
673  
674   1. Initial Release

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