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Revision 45 by tony, Tue Dec 6 10:33:46 2016 UTC vs.
Revision 319 by tony, Thu Feb 25 12:05:40 2021 UTC

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1 + FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
2 +
3 + 1. Imported (Firebird) constants updated for Firebird 4.
4 +
5 + 2. Firebird.pas from Firebird 4 integrated into source code tree.
6 +
7 + 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
8 +
9 + 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
10 +
11 + 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
12 +   QueryInterface may be used to coerce this interface from IFirebirdAPI. The
13 +   interface provides a single method "function GetIMasterIntf: IMaster". This provides
14 +   type safe access to the Firebird IMaster interface and avoids the need to turn
15 +   off object checks when coercing "function GetIMaster: TObject" to IMaster.
16 +
17 + 6. New IFirebirdAPI Calls:
18 +    function HasLocalTZDB: boolean;
19 +    function HasTimeZoneSupport: boolean;
20 +    function HasExtendedTZSupport: boolean;
21 +    procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
22 +    function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
23 +
24 + 7. New IAttachment Calls:
25 +    function HasDecFloatSupport: boolean;
26 +    function GetTimeZoneServices: ITimeZoneServices;
27 +    function HasTimeZoneSupport: boolean;
28 +
29 + 8. New Interface ITimeZoneServices.
30 +
31 + 9. New ISQLData API Calls:
32 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
33 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
34 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
35 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
36 +    function GetAsUTCDateTime: TDateTime;
37 +    function GetAsBCD: tBCD;
38 +
39 + 10. New ISQLParam API Calls
40 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
41 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
42 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
43 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
44 +    function GetAsUTCDateTime: TDateTime;
45 +    function GetAsBCD: tBCD;
46 +    function GetStatement: IStatement;
47 +    function GetTransaction: ITransaction;
48 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
49 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
50 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
51 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
52 +    procedure SetAsUTCDateTime(aUTCTime: TDateTime);
53 +    procedure SetAsBcd(aValue: tBCD);
54 +
55 + 11. New IArray API Calls
56 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
57 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
58 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
59 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
60 +    function GetAsUTCDateTime(index: array of integer): TDateTime;
61 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
62 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
63 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
64 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
65 +
66 + 12. Utility functions in IBUtils
67 +    function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
68 +              var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
69 +    procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
70 +    function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
71 +    function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
72 +    function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
73 +    function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
74 +
75 + 13. IDPB, ITPB and ISPB: new interface method
76 +      function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
77 +    This is used to add a parameter block item by the string equivalent of its
78 +    symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
79 +
80 + 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
81 +      function getParamTypeName: AnsiString;
82 +
83 + 15. fb_shutdown now called before unloading Firebird library. This can avoid a
84 +     SIGEVENT error when a programme using the embeded server is unloaded.
85 +
86 + FBINTF Change Log  version          (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
87 +
88 + 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
89 +   with a Firebrid 3 client library.
90 +
91 + 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
92 +    If a client library path is not explicitly provided and the FIREBIRD environment
93 +    variable is set then the directory given by this variable and any 'lib' subdirectory
94 +    are searched for the Firebird client library. Only if none is found, is the default
95 +    client library used.
96 +
97 + 3.  IUtil.FormatStatus now used to format error messages when using new API
98 +
99 + 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
100 +
101 + 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
102 +    returned using GetAsString and the string codepage is UTF8, the string is truncated so
103 +    that the byte length corresponds to the number of characters specified for the column.
104 +    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
105 +    correct behaviour but may affect some implementations that relied upon automatic
106 +    trimming of trailing white space.
107 +
108 + 6.  New IFirebirdAPI Calls:
109 +      function GetClientMajor: integer;
110 +      function GetClientMinor: integer;
111 +
112 + 7.  IColumnMetaData and IArrayMetaData: new method
113 +      function GetCharSetWidth: integer;
114 +
115 + FBINTF Change Log  version          (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
116 +
117 + 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
118 +   case sensitive
119 +
120 + 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
121 +
122 + 3. New API Calls:
123 +        IColumnMetaData.GetStatement
124 +        IColumnMetaData.GetTransaction
125 +        ISQLData.GetStrDataLength
126 +        IResults.GetStatement
127 +        IAttachment.OpenBlob (using Blob metadata)
128 +        IAttachment.OpenArray (using array metadata)
129 +
130 + 4. FBMessages: removal of unused messages
131 +
132 + 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
133 +
134 + 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
135 +
136 + FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
137 +
138 + 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
139 +   where the second character of the parameter name is a numeric.
140 +
141 + 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
142 +   This returns the isc_version connection information as one or more lines.
143 +   This is the same information as returned by isql with the -z option.
144 +
145 + 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
146 +   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
147 +   compiler option then the Firebird 3 API is no longer compiled in.
148 +
149 + 4. IColumnMetaData: new method.
150 +
151 +   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
152 +                        dfDateTime,   {SQL DATETIME}
153 +                        dfTime);
154 +
155 +   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
156 +
157 +   This returns the max. number of characters returned by the "AsString" method
158 +   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
159 +
160 + 5. Additional argument for IAttachment.PrepareWithNamedParameters -
161 +     CaseSensitiveParams: boolean = false
162 +
163 +   If this argument is set to true then SQL parameter names are assumed to be case
164 +   sensitive and must be referenced (using ISQLParams.ByName) using the case
165 +   sensitive name.
166 +
167 + 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
168 +   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
169 +   .AsCurrency) and then subsequently to update the value to a non-numeric string
170 +   using .AsString.
171 +
172 +
173 +
174 + FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
175 +
176 + 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
177 +
178 + 2. Restrict IsMultiThread check to Unix only for compatibility with
179 +   https://bugs.freepascal.org/view.php?id=30535
180 +
181 + 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
182 +   named parameters and is intended to avoid problems with (e.g.) Execute Block
183 +   and processing internal parameters as statement parameters.
184 +
185 + 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
186 +   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
187 +
188 + 5. New function added to IB.pas
189 +
190 +   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
191 +
192 +   This allows a Firebird Library to be loaded from an explicit path. use the
193 +   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
194 +   the library. It is possible to load Firebird libraries from different locations
195 +   simultaneously, each with a distinct IFirebirdAPI.
196 +
197 + FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
198 +
199 + 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
200 +   program compiled with -CR command line switch.
201 +
202 + 2. IServiceManager additions (informational):
203 +    function getProtocol: TProtocol;
204 +    function getPortNo: AnsiString;
205 +
206 + 3. IServiceManager improved error handling. Interfaces changed:
207 +    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
208 +    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
209 +    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
210 +
211 + 4. IAttachment addition (informational)
212 +    function GetSecurityDatabase: AnsiString;
213 +
214 + 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
215 +   thus now returns accumulated stats for a select statement from opening a cursor
216 +   up to the last fetch.
217 +
218 + 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
219 +   the problem.
220 +
221 + 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
222 +   replaces deprecated "comp" type.
223 +
224 + 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
225 +
226 + 11. URL Connection Strings: inet4 and inet6 now recognised.
227 +
228 + 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
229 +
230 + 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
231 +
232 +
233 + FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
234 +
235 + 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
236 +
237 + 2. IAttachment: add two new methods
238 +     function HasDefaultCharSet: boolean;
239 +     function GetDefaultCharSetID: integer;
240 +
241 +   These return, respectively, true if a connection default character set was
242 +   specified and the character set id of the connection default character set.
243 +   The DefaultCharSetID is cached when the connection is opened and hence does not
244 +   require a database lookup.
245 +
246 + 3. Avoid exception when a text blob is a stored procedure parameter.
247 +
248 + 4. Update test suite to include a test for a stored proc returning a text blob.
249 +
250 + 5. IAttachment: add
251 +      function GetRemoteProtocol: AnsiString;
252 +      function GetODSMajorVersion: integer;
253 +      function GetODSMinorVersion: integer;
254 +      function GetAuthenticationMethod: AnsiString;
255 +
256 +   These results are cached when the connection is opened and hence do not
257 +   require a database lookup.
258 +
259 + 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
260 +   connect string used to create/connect to the database.
261 +
262 + 7. IAttachment: Create Database using SQL statement. The username and password
263 +   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
264 +   It is now possible to use IAttachment disconnect/connect to reconnect to
265 +   a database for which the initial connection was established by a create
266 +   database sql statement. Available in FPC only.
267 +
268 + 8. Update Test 1 to test 5, 6 and 7 above.
269 +
270 + 9. IBUtils code tidy up.
271 +
272 + 10. Parameter Block interfaces "find" method. As documented, this should have
273 +   returned a nil interface when the item could not be found. Instead, an empty
274 +   interface item was returned. "Find" now works as documented and will return
275 +   a nil interface if the item cannot be found.
276 +
277 + 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
278 +
279 + 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
280 +    requests with additional parameters. This is to enable support for fb_info_page_contents
281 +    (return of page contents). Response to fb_info_page_contents returned as
282 +    a string with code page CP_NONE.
283 +
284 + 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
285 +    test suite updated.
286 +
287 + 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
288 +    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
289 +
290 + 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
291 +    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
292 +    default connection port to be specified.
293 +
294 + FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
295 +
296 + 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
297 +   Scale is no longer ignored.
298 +
299 + 2. Fix issues with setting SQL Param values using SetAsString with Date values
300 +   not in locale format but which are recognised by Firebird. Date values that
301 +   cannot be converted to a string using Pascal library are now passed through
302 +   to Firebird as Text Strings.
303 +
304 + 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
305 +   UTF8 and not UNICODE_FSS.
306 +
307 + 4. Charset ID problem. When using Firebird 3, with no default database character set
308 +   and a column has a non-default collation specified, an incorrect character set
309 +   id was being reported that could result in a 'division by zero' error when
310 +   used by IBX. This has now been fixed.
311 +
312 + 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
313 +   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
314 +   the character sets supported can be updated on a per database basis. That is
315 +   it is possible to add a (Firebird) user defined character set to a database.
316 +
317 + 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
318 +   set supported by Firebird with the API.
319 +
320 + 7. Add missing isc_info_db_read_only to list of decoded Database Information items
321 +   in FBOutputBlock.pas and update test suite to include this item.
322 +
323 + 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
324 +
325 + 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
326 +   library or finding it by disk location, the PATH environment variable is now also set to
327 +   include the FIREBIRD directory. This is to ensure that the correct dlls in the
328 +   firebird client library dependencies are loaded.
329 +
330 + 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
331 +
332 + 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
333 +
334 + 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
335 +
336 + 13. FB30Statement: A check has been added to ensure that all SQL Parameters
337 +    have been given a value (including NULL). Previously, failing to set the
338 +    value of an SQL Parameter could give rise to unpredictable results or
339 +    an SQLDA error.
340 +
341 + 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
342 +
343 + 15. FBAttachment: Avoid string reference count error when processing an Ansistring
344 +    parameter in an array of const passed to IAttachment.OpenCursor, etc.
345 +
346 + 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
347 +    of const passed to IAttachment.OpenCursor, etc.
348 +
349 +
350 + FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
351 +
352 + 1. Change syntax to Mode Delphi
353 +
354 + 2. Change all uses of string type to explicit AnsiString in order to ensure
355 +   compatibility between Delphi and FPC.
356 +
357 + 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
358 +   defined for each interface.
359 +
360 + 4. Generics syntax variations for Delphi added
361 +
362 + 5. PChar replaced with PByte expect where an actual string is being referenced,
363 +   where PAnsiChar is used instead.
364 +
365 + 6. Review of type definitions in IBExternals to ensure Delphi compatibility
366 +
367 + 7. Testsuite updated for Delphi
368 +
369 + FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
370 +
371 + 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
372 +   large blobs and the FB3 API.
373 +
374 + 2. Update Event Handling algorithm to avoid looping due to recreation of the
375 +   event block.
376 +
377 + 3. Avoid invalid XSQLDA error when the only parameter is updated to null
378 +
379 + 4. Array Handling: fix problem with text arrays with character set none. When the
380 +   DB connection has a default character set (e.g. UTF8), an error is raised by
381 +   Firebird if the space allocated is not enough to allow for transliteration, even
382 +   though it is not required for character set none.
383 +
384 + 5. IBUtils: List of reserved words brought up-to-date
385 +
386 + 6. Add ISQL style performance statistics collection to IStatement
387 +
388 + 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
389 +   CREATE DATABASE statement.
390 +
391 + 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
392 +   an array dimension is not mistaken for a named parameter prefix.
393 +
394 + 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
395 +   when Character set is octets. Avoids loss of non printable characters at start of string.
396 +
397 + 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
398 +    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
399 +    to enable stats gathering.
400 +
401 + 11. API Version information added as constants to IB.pas
402 +
403 + 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
404 +
405 + 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
406 +
407   FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
408  
409   1. Initial Release

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