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ibx/trunk/fbintf/changelog (file contents), Revision 47 by tony, Mon Jan 9 15:31:51 2017 UTC vs.
ibx/branches/udr/changelog (file contents), Revision 371 by tony, Wed Jan 5 15:21:22 2022 UTC

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1 < FBINTF Change Log  version                                                   (1.0-1) Mon, 09 Jan 2017 15:31:52 +0000
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 > 2. Transactions may now be given a local transaction name:
13 >   IFirebirdAPI
14 >     function StartTransaction(Attachments: array of IAttachment;
15 >             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
16 >             TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit;
17 >             aName: AnsiString=''): ITransaction; overload;
18 >     function StartTransaction(Attachments: array of IAttachment;
19 >             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
20 >             TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit;
21 >             aName: AnsiString=''): ITransaction; overload;
22 >
23 >   IAttachment
24 >    function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
25 >    function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
26 >    function StartTransaction(TPB: array of byte;
27 >                              DefaultCompletion: TTransactionCompletion=taCommit;
28 >                              aName: AnsiString=''): ITransaction; overload;
29 >    function StartTransaction(TPB: ITPB;
30 >                              DefaultCompletion: TTransactionCompletion=taCommit;
31 >                              aName: AnsiString=''): ITransaction; overload;
32 >
33 >  ITransaction
34 >    function GetTransactionName: AnsiString;
35 >    procedure SetTransactionName(aValue: AnsiString);
36 >
37 > 3. Additional Transaction information
38 >     ITPB.function AsText: AnsiString; {Returns TPB as a text string}
39 >
40 >   ITransaction
41 >     function GetDefaultCompletion: TTransactionCompletion;
42 >     function GetJournalingActive(attachment: IAttachment): boolean; {attachment must be specified when multi-database transaction}
43 >
44 > 4. New IAttachment helper functions
45 >     function HasTable(aTableName: AnsiString): boolean;
46 >     function HasFunction(aFunctionName: AnsiString): boolean;
47 >     function HasProcedure(aProcName: AnsiString): boolean;
48 >     function GetAttachmentID: integer;
49 >     function GetCharSetID: integer;
50 >
51 > 5. IStatement: if the BatchRowLimit is set to maxint, the maximum possible buffer size
52 >   will be allocted for batch operations.
53 >
54 > 6. IStatement, IColumnMetaData and ISQLParam all now consistently provide:
55 >    function GetStatement: IStatement;
56 >    function GetTransaction: ITransaction;
57 >    function GetAttachment: IAttachment;
58 >
59 > 7. Internal: a more disciplined approach to the handling of Firebird.IReferenceCounted
60 >   interfaces.
61 >
62 > 8. New interface type: IFBNumeric. IFBNumeric is implemented in the unit FBNumeric
63 >   and concentrates all handling of Fixed Point numbers. New ISQLItem and ISQLParam
64 >   functions getAsNumeric and setAsNumeric allow for direct retrival and manipulation
65 >   of numerics without loss of precision.
66 >
67 > 9. TryStrToNumeric and NumericToDouble moved from IBUtils to FBNumeric.
68 >
69 > 10. ISQLParams new method "Clear"
70 >
71 > 11. Support package fbudr added for support of User Defined Routines (UDRs).
72 >
73 > 12. Package layout changed with introduction of udr support. IB*.pas files moved from
74 >    root directory to "client".
75 >
76 >
77 > FBINTF Change Log  version          (1.3-3 Build 12935) Mon, 06 Dec 2021 23:17:13 +0000
78 >
79 > 1. Fix compile error with fpc trunk (3.3.1 and later), due to type change to tzname in "unix" unit.
80 >
81 > 2. Remove constraint in IAttachment.HasScollableCursors that returned false when
82 >   using remote protocol. Scrollable cursors with remote database expected to
83 >   be support for Firebird 4.0.1 onwards. Note: Firebird 4.0.0 will return
84 >   a not supported error.
85 >
86 > 3. IStatement: new function;
87 >    TStatementFlag = (stHasCursor,stRepeatExecute,stScrollable);
88 >    TStatementFlags = set of TStatementFlag;
89 >    function GetFlags: TStatementFlags;
90 >
91 > 4. Revised behaviour for IStatement.ExecuteQuery in order to preserve backwards
92 >   compatibility.
93 >   In Firebird 5, Update..Returning may returns multiple rows and hence the statemen
94 >   type changes from ExecProcedure to Select. So that ExecuteQuery can continue
95 >   to be used with Update...Retruning statements that return a singleton row,
96 >   instead of raising an exception when ExecuteQuery is used with a (SELECT) statement,
97 >   it will open the cursor and return the first row only.
98 >
99 > 5. ITransaction: new functions:
100 >    function GetIsReadOnly: boolean;
101 >    function GetTransactionID: integer;
102 >    function GetTrInformation(Requests: array of byte): ITrInformation; overload;
103 >    function GetTrInformation(Request: byte): ITrInformation; overload;
104 >
105 >   The latter two return the Transaction Information block. The first two extract
106 >   information the Transaction Information block
107 >
108 > 6. New function TSQLTokeniser.ReadCharacters
109 >   Used internally.
110 >
111 > 7. IStatement: GetProcessedSQL bug fix. No longer raises and error if SQL contains
112 >   parameter placeholders instead of named parameters.
113 >
114 > 8. ITransaction (Firebird 3 and later): An exception raised when freeing an underlying
115 >   transaction handle is now ignored if Rollback/Commit is called with Force=true
116 >
117 > 9. Tidy up of exception handling code. Under the legacy API, fb_interpret is now
118 >   used to get an IBError Message instead of isc_interprete.
119 >
120 > 10. Internal tidyup. Native code now used for decoding integers and the events
121 >    buffer. Avoids dependencies on fbclient functions isc_portable_integer,
122 >    isc_event_block and isc_event_counts.
123 >
124 > 11. New IAttachment function
125 >     function GetAttachmentID: integer;
126 >
127 > 12. Internal changes to TFBClientAPI, TFBAttachment and TFBTransaction and TFB30
128 >    subclasses to enable UDR support.
129 >
130 > FBINTF Change Log  version          (1.3-2 Build 12889) Sun, 24 Oct 2021 13:49:28 +0100
131 >
132 > 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
133 >
134 > 2. IStatement: new methods:
135 >    procedure SetStaleReferenceChecks(Enable:boolean); {default true}
136 >    function GetStaleReferenceChecks: boolean;
137 >
138 >   In previous versions, stale reference checks were always enabled. This allows the
139 >   user to disable them on a per statement basis. Note this can risk out-of-date
140 >   statement BLR. See User Guide.
141 >
142 > 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
143 >   stored procedure and hence avoids replacing named parameters within a containing
144 >   BEGIN..END block.
145 >
146 > 4. ISQLParam: using a string value to set an integer field with a scale factor of
147 >   zero is now treated as a special case to avoid the risk of floating point
148 >   rounding errors affecting pure integers.
149 >
150 > 5. ISQLParam:  Review and tidy-up of SetAsString for numeric types.
151 >
152 > 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
153 >   SQL Parameter metadata (methods moved from ISQLParam).
154 >
155 > 7. ISQLParam: new method
156 >     function getColMetadata: IParamMetaData;
157 >   This instance of IParamMetaData returns the original column metadata which is unmutable.
158 >   Note: ISQLParam metadata can change after a parameter value has been set e.g when
159 >   setting a VARCHAR column to an integer value.
160 >
161 > 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
162 >    procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
163 >   also IAttachment:
164 >    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
165 >    function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
166 >    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
167 >                       aSQLDialect: integer; GenerateParamNames: boolean=false;
168 >                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
169 >    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
170 >                       GenerateParamNames: boolean=false;
171 >                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
172 >
173 > 9. Support for scrollable cursors added. New/updated methods:
174 >   IAttachment:
175 >    function HasScollableCursors: boolean;
176 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
177 >                             Scrollable: boolean=false): IResultSet; overload;
178 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
179 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
180 >                             params: array of const): IResultSet; overload;
181 >    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
182 >                             params: array of const): IResultSet; overload;
183 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
184 >                             params: array of const): IResultSet; overload;
185 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
186 >                             Scrollable: boolean=false): IResultSet; overload;
187 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
188 >    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
189 >                             params: array of const): IResultSet; overload;
190 >    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
191 >    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
192 >                             params: array of const): IResultSet; overload;
193 >   IStatement:
194 >     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
195 >   IResultSet:
196 >    function FetchPrior: boolean; {fetch previous record}
197 >    function FetchFirst:boolean; {fetch first record}
198 >    function FetchLast: boolean; {fetch last record}
199 >    function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
200 >    function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
201 >    function IsBof: boolean;
202 >
203 > 10. IArray: tidyup of SetAsString method to ensure correct handling of fixed point numbers.
204 >
205 > 11. IBUtils: TSQLTokeniser. CRLF now combined by low level parser into sqltEOL token. This
206 >    may be noticeable when a line separator occurs inside quoted text. The quoted text
207 >    output by the tokeniser will now use the platform specific lineEnding regardless
208 >    of whether the input uses the CRLF or LF as a line separator.
209 >
210 > 12. IStatement, IResultsSet: Support for scrollable cursors added (note: local databases only)
211 >
212 >
213 > FBINTF Change Log  version          (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
214 >
215 > 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
216 >
217 > 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
218 >   will now be encoded inline (i.e. as part of the parameter buffer) if they are
219 >   shorter than a pre-set limit. Longer values continue to be saved as blobs as a
220 >   separate server interaction. This is intended as a performance optimisation.
221 >
222 >   The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
223 >   IAttachment interface functions:
224 >
225 >    function GetInlineBlobLimit: integer;
226 >    procedure SetInlineBlobLimit(limit: integer);
227 >
228 > 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
229 >   user as the functionality is embedded in the implementation of the IStatement
230 >   interface. Three new functions are defined:
231 >
232 >    procedure AddToBatch;
233 >    function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
234 >    procedure CancelBatch;
235 >    function GetBatchCompletion: IBatchCompletion;
236 >    function GetBatchRowLimit: integer;
237 >    procedure SetBatchRowLimit(aLimit: integer);
238 >
239 >   Also
240 >
241 >    function IsInBatchMode: boolean;        {true after call to execute(eaDefer)}
242 >    function HasBatchMode: boolean;         {true if and only if IBatch Supported}
243 >
244 >   For more information see the User Guide.
245 >
246 > 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
247 >   provided with the EIBInterBaseError now include all three parts.
248 >
249 > 5. Firebird.pas and include files updated to Firebird 4.0.0
250 >
251 > 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
252 >   Returns SQL Statement type as a text string;
253 >
254 > 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
255 >   an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
256 >
257 > FBINTF Change Log  version          (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
258 >
259 > 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
260 >   typo in FB30Statement.pas that caused an unknown parameter error.
261 >
262 > FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
263 >
264 > 1. Imported (Firebird) constants updated for Firebird 4.
265 >
266 > 2. Firebird.pas from Firebird 4 integrated into source code tree.
267 >
268 > 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
269 >
270 > 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
271 >
272 > 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
273 >   QueryInterface may be used to coerce this interface from IFirebirdAPI. The
274 >   interface provides a single method "function GetIMasterIntf: IMaster". This provides
275 >   type safe access to the Firebird IMaster interface and avoids the need to turn
276 >   off object checks when coercing "function GetIMaster: TObject" to IMaster.
277 >
278 > 6. New IFirebirdAPI Calls:
279 >    function HasLocalTZDB: boolean;
280 >    function HasTimeZoneSupport: boolean;
281 >    function HasExtendedTZSupport: boolean;
282 >    procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
283 >    function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
284 >
285 > 7. New IAttachment Calls:
286 >    function HasDecFloatSupport: boolean;
287 >    function GetTimeZoneServices: ITimeZoneServices;
288 >    function HasTimeZoneSupport: boolean;
289 >
290 > 8. New Interface ITimeZoneServices.
291 >
292 > 9. New ISQLData API Calls:
293 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
294 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
295 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
296 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
297 >    function GetAsUTCDateTime: TDateTime;
298 >    function GetAsBCD: tBCD;
299 >
300 > 10. New ISQLParam API Calls
301 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
302 >    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
303 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
304 >    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
305 >    function GetAsUTCDateTime: TDateTime;
306 >    function GetAsBCD: tBCD;
307 >    function GetStatement: IStatement;
308 >    function GetTransaction: ITransaction;
309 >    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
310 >    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
311 >    procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
312 >    procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
313 >    procedure SetAsUTCDateTime(aUTCTime: TDateTime);
314 >    procedure SetAsBcd(aValue: tBCD);
315 >
316 > 11. New IArray API Calls
317 >    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
318 >    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
319 >    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
320 >    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
321 >    function GetAsUTCDateTime(index: array of integer): TDateTime;
322 >    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
323 >    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
324 >    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
325 >    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
326 >
327 > 12. Utility functions in IBUtils
328 >    function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
329 >              var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
330 >    procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
331 >    function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
332 >    function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
333 >    function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
334 >    function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
335 >
336 > 13. IDPB, ITPB and ISPB: new interface method
337 >      function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
338 >    This is used to add a parameter block item by the string equivalent of its
339 >    symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
340 >
341 > 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
342 >      function getParamTypeName: AnsiString;
343 >
344 > 15. fb_shutdown now called before unloading Firebird library. This can avoid a
345 >     SIGEVENT error when a programme using the embeded server is unloaded.
346 >
347 > FBINTF Change Log  version          (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
348 >
349 > 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
350 >   with a Firebrid 3 client library.
351 >
352 > 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
353 >    If a client library path is not explicitly provided and the FIREBIRD environment
354 >    variable is set then the directory given by this variable and any 'lib' subdirectory
355 >    are searched for the Firebird client library. Only if none is found, is the default
356 >    client library used.
357 >
358 > 3.  IUtil.FormatStatus now used to format error messages when using new API
359 >
360 > 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
361 >
362 > 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
363 >    returned using GetAsString and the string codepage is UTF8, the string is truncated so
364 >    that the byte length corresponds to the number of characters specified for the column.
365 >    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
366 >    correct behaviour but may affect some implementations that relied upon automatic
367 >    trimming of trailing white space.
368 >
369 > 6.  New IFirebirdAPI Calls:
370 >      function GetClientMajor: integer;
371 >      function GetClientMinor: integer;
372 >
373 > 7.  IColumnMetaData and IArrayMetaData: new method
374 >      function GetCharSetWidth: integer;
375 >
376 > FBINTF Change Log  version          (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
377 >
378 > 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
379 >   case sensitive
380 >
381 > 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
382 >
383 > 3. New API Calls:
384 >        IColumnMetaData.GetStatement
385 >        IColumnMetaData.GetTransaction
386 >        ISQLData.GetStrDataLength
387 >        IResults.GetStatement
388 >        IAttachment.OpenBlob (using Blob metadata)
389 >        IAttachment.OpenArray (using array metadata)
390 >
391 > 4. FBMessages: removal of unused messages
392 >
393 > 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
394 >
395 > 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
396 >
397 > FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
398 >
399 > 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
400 >   where the second character of the parameter name is a numeric.
401 >
402 > 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
403 >   This returns the isc_version connection information as one or more lines.
404 >   This is the same information as returned by isql with the -z option.
405 >
406 > 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
407 >   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
408 >   compiler option then the Firebird 3 API is no longer compiled in.
409 >
410 > 4. IColumnMetaData: new method.
411 >
412 >   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
413 >                        dfDateTime,   {SQL DATETIME}
414 >                        dfTime);
415 >
416 >   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
417 >
418 >   This returns the max. number of characters returned by the "AsString" method
419 >   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
420 >
421 > 5. Additional argument for IAttachment.PrepareWithNamedParameters -
422 >     CaseSensitiveParams: boolean = false
423 >
424 >   If this argument is set to true then SQL parameter names are assumed to be case
425 >   sensitive and must be referenced (using ISQLParams.ByName) using the case
426 >   sensitive name.
427 >
428 > 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
429 >   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
430 >   .AsCurrency) and then subsequently to update the value to a non-numeric string
431 >   using .AsString.
432 >
433 >
434 >
435 > FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
436 >
437 > 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
438 >
439 > 2. Restrict IsMultiThread check to Unix only for compatibility with
440 >   https://bugs.freepascal.org/view.php?id=30535
441 >
442 > 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
443 >   named parameters and is intended to avoid problems with (e.g.) Execute Block
444 >   and processing internal parameters as statement parameters.
445 >
446 > 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
447 >   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
448 >
449 > 5. New function added to IB.pas
450 >
451 >   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
452 >
453 >   This allows a Firebird Library to be loaded from an explicit path. use the
454 >   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
455 >   the library. It is possible to load Firebird libraries from different locations
456 >   simultaneously, each with a distinct IFirebirdAPI.
457 >
458 > FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
459 >
460 > 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
461 >   program compiled with -CR command line switch.
462 >
463 > 2. IServiceManager additions (informational):
464 >    function getProtocol: TProtocol;
465 >    function getPortNo: AnsiString;
466 >
467 > 3. IServiceManager improved error handling. Interfaces changed:
468 >    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
469 >    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
470 >    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
471 >
472 > 4. IAttachment addition (informational)
473 >    function GetSecurityDatabase: AnsiString;
474 >
475 > 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
476 >   thus now returns accumulated stats for a select statement from opening a cursor
477 >   up to the last fetch.
478 >
479 > 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
480 >   the problem.
481 >
482 > 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
483 >   replaces deprecated "comp" type.
484 >
485 > 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
486 >
487 > 11. URL Connection Strings: inet4 and inet6 now recognised.
488 >
489 > 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
490 >
491 > 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
492 >
493 >
494 > FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
495 >
496 > 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
497 >
498 > 2. IAttachment: add two new methods
499 >     function HasDefaultCharSet: boolean;
500 >     function GetDefaultCharSetID: integer;
501 >
502 >   These return, respectively, true if a connection default character set was
503 >   specified and the character set id of the connection default character set.
504 >   The DefaultCharSetID is cached when the connection is opened and hence does not
505 >   require a database lookup.
506 >
507 > 3. Avoid exception when a text blob is a stored procedure parameter.
508 >
509 > 4. Update test suite to include a test for a stored proc returning a text blob.
510 >
511 > 5. IAttachment: add
512 >      function GetRemoteProtocol: AnsiString;
513 >      function GetODSMajorVersion: integer;
514 >      function GetODSMinorVersion: integer;
515 >      function GetAuthenticationMethod: AnsiString;
516 >
517 >   These results are cached when the connection is opened and hence do not
518 >   require a database lookup.
519 >
520 > 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
521 >   connect string used to create/connect to the database.
522 >
523 > 7. IAttachment: Create Database using SQL statement. The username and password
524 >   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
525 >   It is now possible to use IAttachment disconnect/connect to reconnect to
526 >   a database for which the initial connection was established by a create
527 >   database sql statement. Available in FPC only.
528 >
529 > 8. Update Test 1 to test 5, 6 and 7 above.
530 >
531 > 9. IBUtils code tidy up.
532 >
533 > 10. Parameter Block interfaces "find" method. As documented, this should have
534 >   returned a nil interface when the item could not be found. Instead, an empty
535 >   interface item was returned. "Find" now works as documented and will return
536 >   a nil interface if the item cannot be found.
537 >
538 > 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
539 >
540 > 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
541 >    requests with additional parameters. This is to enable support for fb_info_page_contents
542 >    (return of page contents). Response to fb_info_page_contents returned as
543 >    a string with code page CP_NONE.
544 >
545 > 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
546 >    test suite updated.
547 >
548 > 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
549 >    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
550 >
551 > 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
552 >    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
553 >    default connection port to be specified.
554 >
555 > FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
556 >
557 > 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
558 >   Scale is no longer ignored.
559 >
560 > 2. Fix issues with setting SQL Param values using SetAsString with Date values
561 >   not in locale format but which are recognised by Firebird. Date values that
562 >   cannot be converted to a string using Pascal library are now passed through
563 >   to Firebird as Text Strings.
564 >
565 > 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
566 >   UTF8 and not UNICODE_FSS.
567 >
568 > 4. Charset ID problem. When using Firebird 3, with no default database character set
569 >   and a column has a non-default collation specified, an incorrect character set
570 >   id was being reported that could result in a 'division by zero' error when
571 >   used by IBX. This has now been fixed.
572 >
573 > 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
574 >   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
575 >   the character sets supported can be updated on a per database basis. That is
576 >   it is possible to add a (Firebird) user defined character set to a database.
577 >
578 > 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
579 >   set supported by Firebird with the API.
580 >
581 > 7. Add missing isc_info_db_read_only to list of decoded Database Information items
582 >   in FBOutputBlock.pas and update test suite to include this item.
583 >
584 > 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
585 >
586 > 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
587 >   library or finding it by disk location, the PATH environment variable is now also set to
588 >   include the FIREBIRD directory. This is to ensure that the correct dlls in the
589 >   firebird client library dependencies are loaded.
590 >
591 > 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
592 >
593 > 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
594 >
595 > 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
596 >
597 > 13. FB30Statement: A check has been added to ensure that all SQL Parameters
598 >    have been given a value (including NULL). Previously, failing to set the
599 >    value of an SQL Parameter could give rise to unpredictable results or
600 >    an SQLDA error.
601 >
602 > 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
603 >
604 > 15. FBAttachment: Avoid string reference count error when processing an Ansistring
605 >    parameter in an array of const passed to IAttachment.OpenCursor, etc.
606 >
607 > 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
608 >    of const passed to IAttachment.OpenCursor, etc.
609 >
610 >
611 > FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
612 >
613 > 1. Change syntax to Mode Delphi
614 >
615 > 2. Change all uses of string type to explicit AnsiString in order to ensure
616 >   compatibility between Delphi and FPC.
617 >
618 > 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
619 >   defined for each interface.
620 >
621 > 4. Generics syntax variations for Delphi added
622 >
623 > 5. PChar replaced with PByte expect where an actual string is being referenced,
624 >   where PAnsiChar is used instead.
625 >
626 > 6. Review of type definitions in IBExternals to ensure Delphi compatibility
627 >
628 > 7. Testsuite updated for Delphi
629 >
630 > FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
631  
632   1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
633     large blobs and the FB3 API.

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