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Revision 263 by tony, Thu Dec 6 15:55:01 2018 UTC vs.
Revision 352 by tony, Thu Oct 21 12:17:43 2021 UTC

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1 + FBINTF Change Log  version          (1.3-2 Build 12860) Thu, 21 Oct 2021 13:16:09 +0100
2 +
3 + 1. TFBClientAPI.GetProcAddr. Add check for nil reference.
4 +
5 + 2. IStatement: new methods:
6 +    procedure SetStaleReferenceChecks(Enable:boolean); {default true}
7 +    function GetStaleReferenceChecks: boolean;
8 +
9 +   In previous versions, stale reference checks were always enabled. This allows the
10 +   user to disable them on a per statement basis. Note this can risk out-of-date
11 +   statement BLR. See User Guide.
12 +
13 + 3. IBUtils: TSQLwithNamedParamsTokeniser now recognises a CASE...END block within a
14 +   stored procedure and hence avoids replacing named parameters within a containing
15 +   BEGIN..END block.
16 +
17 + 4. ISQLParam: using a string value to set an integer field with a scale factor of
18 +   zero is now treated as a special case to avoid the risk of floating point
19 +   rounding errors affecting pure integers.
20 +
21 + 5. ISQLParam:  Review and tidy-up of SetAsString for numeric types.
22 +
23 + 6. ISQLParam is now subclassed from IParamMetaData, which provides access to the mutable
24 +   SQL Parameter metadata (methods moved from ISQLParam).
25 +
26 + 7. ISQLParam: new method
27 +     function getColMetadata: IParamMetaData;
28 +   This instance of IParamMetaData returns the original column metadata which is unmutable.
29 +   Note: ISQLParam metadata can change after a parameter value has been set e.g when
30 +   setting a VARCHAR column to an integer value.
31 +
32 + 8. IStatement: can now set cursor name when opening a cursor. New overloaded method:
33 +    procedure Prepare(CursorName: AnsiString; aTransaction: ITransaction=nil); overload;
34 +   also IAttachment:
35 +    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload;
36 +    function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload;
37 +    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
38 +                       aSQLDialect: integer; GenerateParamNames: boolean=false;
39 +                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
40 +    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
41 +                       GenerateParamNames: boolean=false;
42 +                       CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload;
43 +
44 + 9. Support for scrollable cursors added. New/updated methods:
45 +   IAttachment:
46 +    function HasScollableCursors: boolean;
47 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
48 +                             Scrollable: boolean=false): IResultSet; overload;
49 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
50 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
51 +                             params: array of const): IResultSet; overload;
52 +    function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false;
53 +                             params: array of const): IResultSet; overload;
54 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
55 +                             params: array of const): IResultSet; overload;
56 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
57 +                             Scrollable: boolean=false): IResultSet; overload;
58 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
59 +    function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
60 +                             params: array of const): IResultSet; overload;
61 +    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean=false): IResultSet; overload;
62 +    function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
63 +                             params: array of const): IResultSet; overload;
64 +   IStatement:
65 +     function OpenCursor(Scrollable: boolean; CursorName: AnsiString =''; aTransaction: ITransaction=nil): IResultSet; overload;
66 +   IResultSet:
67 +    function FetchPrior: boolean; {fetch previous record}
68 +    function FetchFirst:boolean; {fetch first record}
69 +    function FetchLast: boolean; {fetch last record}
70 +    function FetchAbsolute(position: Integer): boolean; {fetch record by its absolute position in result set}
71 +    function FetchRelative(offset: Integer): boolean; {fetch record by position relative to current}
72 +    function IsBof: boolean;
73 +
74 +
75 +
76 + FBINTF Change Log  version          (1.3-1 Build 12776) Mon, 23 Aug 2021 11:09:33 +0100
77 +
78 + 1. Integer decodes in information blocks (e.g. IDBInfoItem) widened from 32 bit to 64-bit integers.
79 +
80 + 2. Support for inline blob encoding. Blob values pass using the "SetAsString" method
81 +   will now be encoded inline (i.e. as part of the parameter buffer) if they are
82 +   shorter than a pre-set limit. Longer values continue to be saved as blobs as a
83 +   separate server interaction. This is intended as a performance optimisation.
84 +
85 +   The pre-set limit defaults to 8192 bytes and can be inspected/modified using the new
86 +   IAttachment interface functions:
87 +
88 +    function GetInlineBlobLimit: integer;
89 +    procedure SetInlineBlobLimit(limit: integer);
90 +
91 + 3. Support for Firebird 4 IBatch interface added. This is largely transparent to the API
92 +   user as the functionality is embedded in the implementation of the IStatement
93 +   interface. Three new functions are defined:
94 +
95 +    procedure AddToBatch;
96 +    function ExecuteBatch(aTransaction: ITransaction=nil): IBatchCompletion;
97 +    procedure CancelBatch;
98 +    function GetBatchCompletion: IBatchCompletion;
99 +    function GetBatchRowLimit: integer;
100 +    procedure SetBatchRowLimit(aLimit: integer);
101 +
102 +   Also
103 +
104 +    function IsInBatchMode: boolean;        {true after call to execute(eaDefer)}
105 +    function HasBatchMode: boolean;         {true if and only if IBatch Supported}
106 +
107 +   For more information see the User Guide.
108 +
109 + 4. Default error message contents. Now aligned with User Guide section 10.2 i.e. error messages
110 +   provided with the EIBInterBaseError now include all three parts.
111 +
112 + 5. Firebird.pas and include files updated to Firebird 4.0.0
113 +
114 + 6. New IStatement method: function GetSQLStatementTypeName: AnsiString;
115 +   Returns SQL Statement type as a text string;
116 +
117 + 7. ISQLData.AsInteger and AsInt64 now use "Round" to convert a float field to
118 +   an integer instead of "trunc". This is for compatibility with TFloatField.AsInteger.
119 +
120 + FBINTF Change Log  version          (1.2-1 Build 12552) Wed, 09 Jun 2021 13:05:40 +0100
121 +
122 + 1. Big fix for Firebird 4.0. A internal change in Firebird 4.0.0 from RC1 flushed out a
123 +   typo in FB30Statement.pas that caused an unknown parameter error.
124 +
125 + FBINTF Change Log  version          (1.2-0 Build 12520) Fri, 19 Feb 2021 13:27:23 +0000
126 +
127 + 1. Imported (Firebird) constants updated for Firebird 4.
128 +
129 + 2. Firebird.pas from Firebird 4 integrated into source code tree.
130 +
131 + 3. Added Support for TIMETAMP WITH TIME ZONE and TIME WITH TIME ZONE data types.
132 +
133 + 4. Added Support for SQL_DEC16, SQL_DEC34 and extended NUMERIC precision.
134 +
135 + 5. New unit 'FBClientLib.pas' added and provides new interface IFBIMasterProvider.
136 +   QueryInterface may be used to coerce this interface from IFirebirdAPI. The
137 +   interface provides a single method "function GetIMasterIntf: IMaster". This provides
138 +   type safe access to the Firebird IMaster interface and avoids the need to turn
139 +   off object checks when coercing "function GetIMaster: TObject" to IMaster.
140 +
141 + 6. New IFirebirdAPI Calls:
142 +    function HasLocalTZDB: boolean;
143 +    function HasTimeZoneSupport: boolean;
144 +    function HasExtendedTZSupport: boolean;
145 +    procedure SQLDecFloatEncode(aValue: tBCD; SQLType: cardinal; bufptr: PByte);
146 +    function SQLDecFloatDecode(SQLType: cardinal; scale: integer; bufptr: PByte): tBCD;
147 +
148 + 7. New IAttachment Calls:
149 +    function HasDecFloatSupport: boolean;
150 +    function GetTimeZoneServices: ITimeZoneServices;
151 +    function HasTimeZoneSupport: boolean;
152 +
153 + 8. New Interface ITimeZoneServices.
154 +
155 + 9. New ISQLData API Calls:
156 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
157 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
158 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
159 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
160 +    function GetAsUTCDateTime: TDateTime;
161 +    function GetAsBCD: tBCD;
162 +
163 + 10. New ISQLParam API Calls
164 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
165 +    procedure GetAsDateTime(var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
166 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
167 +    procedure GetAsTime(var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
168 +    function GetAsUTCDateTime: TDateTime;
169 +    function GetAsBCD: tBCD;
170 +    function GetStatement: IStatement;
171 +    function GetTransaction: ITransaction;
172 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
173 +    procedure SetAsTime(aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
174 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
175 +    procedure SetAsDateTime(aValue: TDateTime; aTimeZone: AnsiString); overload;
176 +    procedure SetAsUTCDateTime(aUTCTime: TDateTime);
177 +    procedure SetAsBcd(aValue: tBCD);
178 +
179 + 11. New IArray API Calls
180 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID); overload;
181 +    procedure GetAsDateTime(index: array of integer; var aDateTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString); overload;
182 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezoneID: TFBTimeZoneID; OnDate: TDateTime); overload;
183 +    procedure GetAsTime(index: array of integer; var aTime: TDateTime; var dstOffset: smallint; var aTimezone: AnsiString; OnDate: TDateTime); overload;
184 +    function GetAsUTCDateTime(index: array of integer): TDateTime;
185 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
186 +    procedure SetAsDateTime(index: array of integer; aValue: TDateTime; aTimeZone: AnsiString); overload;
187 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZoneID: TFBTimeZoneID); overload;
188 +    procedure SetAsTime(index: array of integer; aValue: TDateTime; OnDate: TDateTime; aTimeZone: AnsiString); overload;
189 +
190 + 12. Utility functions in IBUtils
191 +    function ParseDateTimeTZString(aDateTimeStr: Ansistring; var aDateTime: TDateTime;
192 +              var aTimezone: AnsiString; aFormatSettings: TFormatSettings; TimeOnly: boolean=false): boolean;
193 +    procedure FBDecodeTime(aTime: TDateTime; var Hour, Minute, Second: word; var DeciMillisecond: cardinal);
194 +    function FBEncodeTime(Hour, Minute, Second, DeciMillisecond: cardinal): TDateTime;
195 +    function FBFormatDateTime(fmt: AnsiString; aDateTime: TDateTime): AnsiString;
196 +    function FormatTimeZoneOffset(EffectiveTimeOffsetMins: integer): AnsiString;
197 +    function DecodeTimeZoneOffset(TZOffset: AnsiString; var dstOffset: integer): boolean;
198 +
199 + 13. IDPB, ITPB and ISPB: new interface method
200 +      function AddByTypeName(ParamTypeName: AnsiString): IDPBItem/ITPBItem/ISPBItem;
201 +    This is used to add a parameter block item by the string equivalent of its
202 +    symbolic type name. e.g. DPB.AddByTypeName('isc_dpb_user_name').AsString := '...'
203 +
204 + 14. IDPBItem/ITPBItem/ISPBItem: new interface method:
205 +      function getParamTypeName: AnsiString;
206 +
207 + 15. fb_shutdown now called before unloading Firebird library. This can avoid a
208 +     SIGEVENT error when a programme using the embeded server is unloaded.
209 +
210 + FBINTF Change Log  version          (1.1-6 Build 12237) Tue, 21 Jul 2020 08:54:21 +0100
211 +
212 + 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
213 +   with a Firebrid 3 client library.
214 +
215 + 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
216 +    If a client library path is not explicitly provided and the FIREBIRD environment
217 +    variable is set then the directory given by this variable and any 'lib' subdirectory
218 +    are searched for the Firebird client library. Only if none is found, is the default
219 +    client library used.
220 +
221 + 3.  IUtil.FormatStatus now used to format error messages when using new API
222 +
223 + 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
224 +
225 + 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
226 +    returned using GetAsString and the string codepage is UTF8, the string is truncated so
227 +    that the byte length corresponds to the number of characters specified for the column.
228 +    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
229 +    correct behaviour but may affect some implementations that relied upon automatic
230 +    trimming of trailing white space.
231 +
232 + 6.  New IFirebirdAPI Calls:
233 +      function GetClientMajor: integer;
234 +      function GetClientMinor: integer;
235 +
236 + 7.  IColumnMetaData and IArrayMetaData: new method
237 +      function GetCharSetWidth: integer;
238 +
239 + FBINTF Change Log  version          (1.1-5 Build 12022) Fri, 17 Apr 2020 10:35:55 +0100
240 +
241 + 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
242 +   case sensitive
243 +
244 + 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
245 +
246 + 3. New API Calls:
247 +        IColumnMetaData.GetStatement
248 +        IColumnMetaData.GetTransaction
249 +        ISQLData.GetStrDataLength
250 +        IResults.GetStatement
251 +        IAttachment.OpenBlob (using Blob metadata)
252 +        IAttachment.OpenArray (using array metadata)
253 +
254 + 4. FBMessages: removal of unused messages
255 +
256 + 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
257 +
258 + 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
259 +
260 + FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
261 +
262 + 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
263 +   where the second character of the parameter name is a numeric.
264 +
265 + 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
266 +   This returns the isc_version connection information as one or more lines.
267 +   This is the same information as returned by isql with the -z option.
268 +
269 + 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
270 +   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
271 +   compiler option then the Firebird 3 API is no longer compiled in.
272 +
273 + 4. IColumnMetaData: new method.
274 +
275 +   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
276 +                        dfDateTime,   {SQL DATETIME}
277 +                        dfTime);
278 +
279 +   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
280 +
281 +   This returns the max. number of characters returned by the "AsString" method
282 +   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
283 +
284 + 5. Additional argument for IAttachment.PrepareWithNamedParameters -
285 +     CaseSensitiveParams: boolean = false
286 +
287 +   If this argument is set to true then SQL parameter names are assumed to be case
288 +   sensitive and must be referenced (using ISQLParams.ByName) using the case
289 +   sensitive name.
290 +
291 + 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
292 +   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
293 +   .AsCurrency) and then subsequently to update the value to a non-numeric string
294 +   using .AsString.
295 +
296 +
297 +
298   FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
299  
300   1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary

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