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Revision 143 by tony, Fri Feb 23 12:11:21 2018 UTC vs.
Revision 306 by tony, Fri Jul 17 22:53:33 2020 UTC

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1 < IBX Change Log  version                                                    (2.2-0) Thu, 22 Feb 2018 17:12:26 +0000
1 > FBINTF Change Log  version          (1.1-6 Build 12214) Fri, 17 Jul 2020 23:10:11 +0100
2  
3 < 1. IBExtract: Identity columns - add additional check for null column for generator name.
3 > 1. GetImplementationVersion now correctly returns '3.0' for Firebird 3 API
4 >   with a Firebrid 3 client library.
5  
6 < 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
7 <   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
8 <   information). However, this is also a very useful mechanism for returning updated computed by
9 <   column values. Values returned as a result of executing an Insert or Update statement
10 <   replace existing values in the current row for each corresponding column.
6 > 2. Linux Only: FIREBIRD environment variable is now checked when loading the client library.
7 >    If a client library path is not explicitly provided and the FIREBIRD environment
8 >    variable is set then the directory given by this variable and any 'lib' subdirectory
9 >    are searched for the Firebird client library. Only if none is found, is the default
10 >    client library used.
11  
12 <   Previously, if a dataset's select query included read only (computed by) fields then
12 <   an automatic row refresh was performed after an insert or update query had been processed,
13 <   irrespective of the setting of the "ForcedUpdates" property. This has changed such
14 <   that an automatic refresh is no longer performed if an insert or update query contains
15 <   a returning clause that updates one or more fields on the current row. A full row
16 <   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17 <   field values and the select query contains read only fields. Use of Insert/update
18 <   returning should be significantly more efficient than executing a refresh query.
12 > 3.  IUtil.FormatStatus now used to format error messages when using new API
13  
14 <   This behaviour change is intended to be backwards compatible and there should be no need to change
21 <   existing programs, other than to improve performance by using the new capability.
14 > 4.  Fixed Array SDL: array_desc_scale now correctly encoded as a signed integer.
15  
16 < 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
17 <   they are called when the dataset row is being deleted, there is no value in
18 <   updating the current record from the query result. Instead, a new event handler
19 <   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
20 <   an OnDeleteReturning event handler is provided then it is called with the IResults returned
21 <   by the query. The event handler can then interrogate the query results and
29 <   perform whatever action is necessary. For example to confirm, to the user,
30 <   the deletion of a row with the returned values.
16 > 5.  SQL_TEXT handling changed. When the value of an SQL_TEXT (i.e. fixed width string) column is
17 >    returned using GetAsString and the string codepage is UTF8, the string is truncated so
18 >    that the byte length corresponds to the number of characters specified for the column.
19 >    SQL_TEXT strings are no longer automatically trimmed to remove all trailing white space. This is
20 >    correct behaviour but may affect some implementations that relied upon automatic
21 >    trimming of trailing white space.
22  
23 < 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
24 <   any Computed By or Identity Columns. The IBTables example has been updated to
25 <   illustrate the computation of the employee Full Name on update.
23 > 6.  New IFirebirdAPI Calls:
24 >      function GetClientMajor: integer;
25 >      function GetClientMinor: integer;
26  
36 5. TIBTable: The GeneratorField property is now published.
27  
28 < 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
39 <   When InsertSQL is generated, the Identity columns are not included in the list of values to
40 <   be inserted. A RETURNING clause is added to the insert statement to return the value of
41 <   each Identity column after the insert is executed.
28 > FBINTF Change Log  version          (1.1-5 Build 12044) Fri, 17 Apr 2020 12:30:01 +0100
29  
30 < 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
31 <   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
45 <   Insert..Returning clause.
30 > 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
31 >   case sensitive
32  
33 < 8. TIBGenerator: small performance improvement by not preparing query each time
48 <   a new value is generated.
33 > 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
34  
35 < 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
35 > 3. New API Calls:
36 >        IColumnMetaData.GetStatement
37 >        IColumnMetaData.GetTransaction
38 >        ISQLData.GetStrLength
39 >        IResults.GetStatement
40 >        IAttachment.OpenBlob (using Blob metadata)
41 >        IAttachment.OpenArray (using array metadata)
42  
43 < 10. Property editors will now sync table name to a System Table when "Include System
53 <    Tables" is selected and the query is for a System Table.
43 > 4. FBMessages: removal of unused messages
44  
45 < 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
56 <    values are no longer converted to milliseconds from TDateTime and then back again
57 <    to TDateTime (the conversion to milliseconds is the default TDataset approach).
45 > 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
46  
47 < 12. Property Editors handling of Stored Procedures.
60 <    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
61 <      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
62 <      query).
63 <    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
47 > 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
48  
49 < 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
66 <    can be used to select a package. If non-empty, the stored procedure name is
67 <    expected to be a stored procedure defined in the specified package and the
68 <    generated SQL will be as required for a stored procedure located in a package.
49 > FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
50  
51 < 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
52 <    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
72 <    which a stored procedure can be selected. With no package name selected, non-package
73 <    stored procedures are listed.
51 > 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
52 >   where the second character of the parameter name is a numeric.
53  
54 < 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
55 <    for password on reconnect.
54 > 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
55 >   This returns the isc_version connection information as one or more lines.
56 >   This is the same information as returned by isql with the -z option.
57  
58 < 16. TIBDatabase: use IAttachment for connection default character set id, code page
59 <    and character set name.
58 > 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
59 >   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
60 >   compiler option then the Firebird 3 API is no longer compiled in.
61  
62 < 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
82 <    DB info lookups"
62 > 4. IColumnMetaData: new method.
63  
64 < 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
64 >   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
65 >                        dfDateTime,   {SQL DATETIME}
66 >                        dfTime);
67  
68 < 19. Add a property Editor for TIBUpdate.RefreshSQL.
68 >   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
69  
70 < 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
71 <    parameters. This stops an exception being raised when the field cannot be
90 <    located in the record buffer.
70 >   This returns the max. number of characters returned by the "AsString" method
71 >   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
72  
73 < 21. Property Editors now automatically include System Tables when opened and when the query table
74 <    is a System Table.
73 > 5. Additional argument for IAttachment.PrepareWithNamedParameters -
74 >     CaseSensitiveParams: boolean = false
75  
76 < 22. IBServices: SQRB and SRB buffers are now reset when service query throws and exception.
77 <    This avoids errors due to a stale SQRB or SRB being used for the next query.
76 >   If this argument is set to true then SQL parameter names are assumed to be case
77 >   sensitive and must be referenced (using ISQLParams.ByName) using the case
78 >   sensitive name.
79  
80 < 23. IBServices: Service attach parameters now include "expected_db". This is used to
81 <    add the SPB item isc_spb_expected_db. This names a database using
82 <    an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
83 <    database. examples/services re-written to illustrate use of "expected_db".
80 > 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
81 >   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
82 >   .AsCurrency) and then subsequently to update the value to a non-numeric string
83 >   using .AsString.
84  
103 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
104    This avoids truncated backups when the server returns a timeout (busy) response.
85  
106 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
86  
87 < 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
109 <    databasenames. These are respectively expanded to the local system's temp directory
110 <    (including trailing delimiter) or to a directory a prescribed data directory (including
111 <    trailing delimiter). Under Unix systems the data directory is a hidden directory
112 <    in the user's home directory. The hidden directory name is either the string returned
113 <    from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
114 <    Under Windows, the directory is the same as the Data Directory as decribed
115 <    above but instead prefixed by the User's application data path. These may be
116 <    used to improve application portability.
87 > FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
88  
89 < 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
119 <    this has not worked for a long time and is not useful either. FieldDefs should be
120 <    managed using the Fields Editor as with any other dataset. To access the fields
121 <    editor for a TIBTable component, double click on the component. The fields editor
122 <    is then displayed.
89 > 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
90  
91 < 28. TIBDatabaseInfo: new properties/function
92 <     * DateDBCreated (returns date/time database created)
126 <     * TransactionCount (returns no. of active transactions)
127 <     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
128 <     * PagesFree (Firebird 3 or later)
129 <     * PagesUsed (Firebird 3 or later)
130 <     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
131 <     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
91 > 2. Restrict IsMultiThread check to Unix only for compatibility with
92 >   https://bugs.freepascal.org/view.php?id=30535
93  
94 < 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
94 > 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
95 >   named parameters and is intended to avoid problems with (e.g.) Execute Block
96 >   and processing internal parameters as statement parameters.
97  
98 < 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
98 > 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
99 >   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
100  
101 < 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
138 <    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
101 > 5. New function added to IB.pas
102  
103 < 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
141 <    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
142 <    firing during backup and restore.
103 >   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
104  
105 < 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
106 <    for verbose output using the new property "StatisticsRequested".
107 <    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
105 >   This allows a Firebird Library to be loaded from an explicit path. use the
106 >   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
107 >   the library. It is possible to load Firebird libraries from different locations
108 >   simultaneously, each with a distinct IFirebirdAPI.
109  
110 < 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
110 > FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
111  
112 < 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
113 <    palette. This uses the online validation feature added in Firebird 2.5. The
152 <    services's properties enable inclusion/exclusion of tables and indexes using
153 <    regular expressions. See.
154 <    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
112 > 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
113 >   program compiled with -CR command line switch.
114  
115 < 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
116 <    option on a database.
115 > 2. IServiceManager additions (informational):
116 >    function getProtocol: TProtocol;
117 >    function getPortNo: AnsiString;
118  
119 < 37. TIBCustomService: Assign method implemented to allow copying of service login
120 <    context between service API components. "Detach" method now only detaches
121 <    service when last reference to the service interface detaches. Tidy up of
122 <    code for SetActive and Attach methods including password hiding.
119 > 3. IServiceManager improved error handling. Interfaces changed:
120 >    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
121 >    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
122 >    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
123  
124 < 38. TIBDatabase: new proterties: AuthenticationMethod and RemoteProtocol. Read only
125 <    and used to determine the auth method and protocol used for the connection.
124 > 4. IAttachment addition (informational)
125 >    function GetSecurityDatabase: AnsiString;
126  
127 < 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
128 <    a Create Database Statement generated by IBX.
127 > 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
128 >   thus now returns accumulated stats for a select statement from opening a cursor
129 >   up to the last fetch.
130  
131 < 40. All IBServices now have an additional published property "PortNo". This may
132 <    be set to a non-standard port number when necessary. If zero then the default
172 <    port number is used.
131 > 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
132 >   the problem.
133  
134 < 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
135 <    and not just the mouse.
134 > 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
135 >   replaces deprecated "comp" type.
136  
137 < 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
137 > 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
138  
139 < 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
180 <    image index and selected image index for each node to be set from a database field.
139 > 11. URL Connection Strings: inet4 and inet6 now recognised.
140  
141 < 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
183 <    then database schema includes grants to all users. If not present then the
184 <    only user grants included are those to User PUBLIC.
141 > 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
142  
143 < 45. TIBTreeView: performance improvement. When expanding include both expanded node
187 <    and child nodes in dataset.
143 > 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
144  
145  
146 < IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
146 > FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
147  
148 < 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
193 <   changes.
148 > 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
149  
150 < 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
151 <   Bug could result in truncated multi-byte character set values.
150 > 2. IAttachment: add two new methods
151 >     function HasDefaultCharSet: boolean;
152 >     function GetDefaultCharSetID: integer;
153  
154 < 3. Changes consequential on moving fbintf character set utility functions from
155 <   IFirebirdAPI to IAttachment.
154 >   These return, respectively, true if a connection default character set was
155 >   specified and the character set id of the connection default character set.
156 >   The DefaultCharSetID is cached when the connection is opened and hence does not
157 >   require a database lookup.
158  
159 < 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
159 > 3. Avoid exception when a text blob is a stored procedure parameter.
160  
161 < 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
204 <   results in autocomplete ignoring prefix text.
161 > 4. Update test suite to include a test for a stored proc returning a text blob.
162  
163 < 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
164 <   entering a new name into the text box.
163 > 5. IAttachment: add
164 >      function GetRemoteProtocol: AnsiString;
165 >      function GetODSMajorVersion: integer;
166 >      function GetODSMinorVersion: integer;
167 >      function GetAuthenticationMethod: AnsiString;
168  
169 < 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
170 <   Firebird rather than recomputing it.
169 >   These results are cached when the connection is opened and hence do not
170 >   require a database lookup.
171  
172 < 8. Property Editor positioning tidy up: All IBX Property editors should now be
173 <   screen centre. Previously some were "poDesigned" which may be inappropriate
214 <   for multi monitor desktops.
172 > 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
173 >   connect string used to create/connect to the database.
174  
175 < 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
175 > 7. IAttachment: Create Database using SQL statement. The username and password
176 >   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
177 >   It is now possible to use IAttachment disconnect/connect to reconnect to
178 >   a database for which the initial connection was established by a create
179 >   database sql statement. Available in FPC only.
180  
181 < 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
219 <    a transaction and always reset the object.
181 > 8. Update Test 1 to test 5, 6 and 7 above.
182  
183 < 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
183 > 9. IBUtils code tidy up.
184  
185 < 13. TIBXScript: Allow for override of database filename in Create Database statements.
185 > 10. Parameter Block interfaces "find" method. As documented, this should have
186 >   returned a nil interface when the item could not be found. Instead, an empty
187 >   interface item was returned. "Find" now works as documented and will return
188 >   a nil interface if the item cannot be found.
189  
190 < 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
226 <    to a gbak format archive.
190 > 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
191  
192 < 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
192 > 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
193 >    requests with additional parameters. This is to enable support for fb_info_page_contents
194 >    (return of page contents). Response to fb_info_page_contents returned as
195 >    a string with code page CP_NONE.
196  
197 < 16. IBLocaldb: Drop database if error creating an empty database.
197 > 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
198 >    test suite updated.
199  
200 < 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
201 <    unless selected node not in current dataset.
200 > 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
201 >    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
202  
203 < 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
204 <    to TIBCustomService, and IBlocalDB code tidy up.
203 > 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
204 >    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
205 >    default connection port to be specified.
206  
207 < 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
239 <    behaviour due to uninitialised variable.
207 > FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
208  
209 < 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
210 <    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
209 > 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
210 >   Scale is no longer ignored.
211  
212 < 21. IBSQL: When Database changed ensure that all resources are freed.
212 > 2. Fix issues with setting SQL Param values using SetAsString with Date values
213 >   not in locale format but which are recognised by Firebird. Date values that
214 >   cannot be converted to a string using Pascal library are now passed through
215 >   to Firebird as Text Strings.
216  
217 < 22. IBCustomDataset: When database changed ensure that queries an unprepared.
217 > 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
218 >   UTF8 and not UNICODE_FSS.
219  
220 < 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
221 <    * Line Wrap on SQL Token boundaries (on user command)
222 <    * auto-complete table names in drop down list of table names
223 <    * Double click on tablename or field name adds to SQL text
220 > 4. Charset ID problem. When using Firebird 3, with no default database character set
221 >   and a column has a non-default collation specified, an incorrect character set
222 >   id was being reported that could result in a 'division by zero' error when
223 >   used by IBX. This has now been fixed.
224  
225 < 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
225 > 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
226 >   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
227 >   the character sets supported can be updated on a per database basis. That is
228 >   it is possible to add a (Firebird) user defined character set to a database.
229  
230 < 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
231 <    TVariantArray. Seems to avoid memory corruption in Windows (probably a
257 <    workaround for a problem in fpc 3.0.4 win64).
230 > 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
231 >   set supported by Firebird with the API.
232  
233 < 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
233 > 7. Add missing isc_info_db_read_only to list of decoded Database Information items
234 >   in FBOutputBlock.pas and update test suite to include this item.
235  
236 < 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
236 > 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
237  
238 < IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
238 > 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
239 >   library or finding it by disk location, the PATH environment variable is now also set to
240 >   include the FIREBIRD directory. This is to ensure that the correct dlls in the
241 >   firebird client library dependencies are loaded.
242  
243 < 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
266 <   include remote system name.
243 > 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
244  
245 < 2. TIBExtract: No longer include comment header and COMMIT statement for empty
269 <   tables when data included in output.
245 > 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
246  
247 < 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
272 <   and timing information to be written to stdout. This may be used to locate
273 <   performance bottlenecks.
247 > 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
248  
249 < 4. SQLParser: only call "OnChanging" event handler when value is different.
249 > 13. FB30Statement: A check has been added to ensure that all SQL Parameters
250 >    have been given a value (including NULL). Previously, failing to set the
251 >    value of an SQL Parameter could give rise to unpredictable results or
252 >    an SQLDA error.
253  
254 < 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
254 > 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
255  
256 < 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
257 <   that BindFields is called when the query is next activated. Avoids FieldName
281 <   not found error.
256 > 15. FBAttachment: Avoid string reference count error when processing an Ansistring
257 >    parameter in an array of const passed to IAttachment.OpenCursor, etc.
258  
259 < 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
260 <   purpose and allows the programmer to define any action they want for Update, Insert
285 <   or Delete. This may be complex SQL (similar to a Trigger), application specific
286 <   filtering of updates, or use of statements such as Grant or Revoke instead of
287 <   normal DML. See User Manual for more information.
259 > 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
260 >    of const passed to IAttachment.OpenCursor, etc.
261  
289 IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
262  
263 < 1. TIBEvents: Fix uninitialised variable that could result in lost events.
263 > FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
264  
265 < 2. TIBExtract: Added support for FB3 "USAGE" privilege.
265 > 1. Change syntax to Mode Delphi
266  
267 < 3. TIBExtract: data formatted as Charset set "octets" is now output using
268 <   hexadecimal notation.
267 > 2. Change all uses of string type to explicit AnsiString in order to ensure
268 >   compatibility between Delphi and FPC.
269  
270 < 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
271 <   using a simple XML format.
270 > 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
271 >   defined for each interface.
272  
273 < 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
302 <   grants to these objects.
273 > 4. Generics syntax variations for Delphi added
274  
275 < 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
276 <   dependency problems restoring complex databases.
275 > 5. PChar replaced with PByte expect where an actual string is being referenced,
276 >   where PAnsiChar is used instead.
277  
278 < 7. TIBXScript: This component has been restructured to allow for the processing of
308 <   embedded XML in INSERT statements and to support interactive sources in addition
309 <   to non-interactive data sources such as files.
278 > 6. Review of type definitions in IBExternals to ensure Delphi compatibility
279  
280 < 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
280 > 7. Testsuite updated for Delphi
281  
282 < 9. TIBXScript: ISQL compatiable Set statements are now supported:
314 <   SET SQL DIALECT
315 <   SET TERM
316 <   SET AUTODDL
317 <   SET BAIL
318 <   SET ECHO
319 <   SET COUNT
320 <   SET STATS
321 <   SET NAMES <character set>
282 > FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
283  
284 < 10. IBVersion unit added to hold current IBX Version Number information.
284 > 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
285 >   large blobs and the FB3 API.
286  
287 < 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
288 <    and domain definitions.
287 > 2. Update Event Handling algorithm to avoid looping due to recreation of the
288 >   event block.
289  
290 < 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
329 <    fully supported.
290 > 3. Avoid invalid XSQLDA error when the only parameter is updated to null
291  
292 < 13. TIBExtract: when a database dump includes data, the generator values are now also set.
292 > 4. Array Handling: fix problem with text arrays with character set none. When the
293 >   DB connection has a default character set (e.g. UTF8), an error is raised by
294 >   Firebird if the space allocated is not enough to allow for transliteration, even
295 >   though it is not required for character set none.
296  
297 < 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
297 > 5. IBUtils: List of reserved words brought up-to-date
298  
299 < IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
299 > 6. Add ISQL style performance statistics collection to IStatement
300  
301 < See also doc/IBX4LazarusGuide.pdf for important information on
302 < upgrading to IBX2.
301 > 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
302 >   CREATE DATABASE statement.
303  
304 < 1. Size property of TIBStringField is now the width in characters of the field
305 <   and not the byte length. This applies only to multi-byte character sets such
342 <   as UTF8. The original approach aligned with TStringField. However, the TStringField
343 <   code is not recognised as a bug and hence this change to align the behaviour.
344 <   The TStringField change is expected in fpc 3.2.0.
304 > 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
305 >   an array dimension is not mistaken for a named parameter prefix.
306  
307 < 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
308 <   true (default) then Size property value saved in the lfm is ignored. Size is
348 <   always set from the dynamic information read from the database. It is unclear
349 <   why anyone would want to override this and set Size to false.
307 > 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
308 >   when Character set is octets. Avoids loss of non printable characters at start of string.
309  
310 < 3. ibxscript: should now handle correctly a Case..End statement within a procedure
311 <   block.
310 > 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
311 >    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
312 >    to enable stats gathering.
313  
314 < 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
355 <   exist when an attempt is made to connect to it (run time only) then an attempt
356 <   is made to create the database.
314 > 11. API Version information added as constants to IB.pas
315  
316 < 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
359 <   has been successfully created as a result of a call to CreateDatabase or when
360 <   creating a database after it was found not to exist.
316 > 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
317  
318 < 6.  DBControlGrid: a race condition could result in the wrong row image being
363 <    written to the cache. This has been avoided by a trip round the message
364 <    loop before rendering the row image.
318 > 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
319  
320 < 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
367 <    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
368 <    known to risk corrupt rendering of row images when the control is first
369 <    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
370 <    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
320 > FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
321  
322 < 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
373 <    a TDateEdit control located on an editor panel.
322 > 1. Initial Release
323  
375 9.  TIBExtract: brought up-to-date plus many bug fixes.
376
377 10. DBControlGrid: Removed memory leak when updating rows.
378
379 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
380
381 IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
382
383 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
384   when target codepage is CP_NONE. This is a workaround for
385   http://bugs.freepascal.org/view.php?id=30622.
386
387 2. DBLog option removed from TIBStatisticalService - not supported by server
388   since Firebird 1.5.
389
390 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
391   similar.
392
393 4. IBCodePage: updated mapping between codepages and character id.
394
395 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
396   Firebird. Character sets with a char width of two are not UTF16.
397
398 6. Strings received from the database are now always transliterated into UTF8
399   regardless of the database character set or connection character set. This
400   is for compatibility with the LCL.
401
402 IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
403
404 1. IBBlob: Defer reading of blob until read method called. This avoids having to
405   read in an entire blob just to get the size of the blob. General performance
406   improvement when opening datasets containing blobs.
407
408 2. Clearing a  Blob now sets the corresponding field's modified flag.
409
410 3. IBLookupCombo: When not performing auto-complete, original query sort order
411   is now used.
412
413 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
414   determined.
415
416 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
417
418 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
419   lazarus 1.6.0
420
421 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
422   compilation error.
423
424 IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
425
426 1. No character set specified for connection: when a text blob is retrieved, the
427  character set is determined by looking up the native character set using then
428  Firebird API. Otherwise a text mode blob is assumed to have the same character
429  set as the connection.
430
431 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
432   for Login Dialog returing a change to the database path.
433
434 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
435   to be changed from that given in the TIBDatabase/TIBServer component and for the
436   entered value to be saved on a project specific basis (design time only).
437
438 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
439   column fieldname. If they are the same then it is acts as a look up for the KeyValue
440   Otherwise, it sets the column text to the selected ListField Value.
441
442 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
443   column width.
444
445 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
446   and a case insensitive search is requested.
447
448 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
449   or column ListSource.
450
451 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
452   unprepare) when closing and the text has not changed.
453
454 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
455   Less likely to cause a cursor re-use error on Windows.
456
457 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
458   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
459
460 11. TIBTreeView: Guard against nil destination on record changed
461
462 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
463    string type with the code page set to reflect the returned field encoding after
464    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
465    earlier versions.
466
467 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
468    will now result in transliteration to the code page specified for the Firebird driver
469    if the assigned string has a different code page. FPC 3.0.0 onwards only.
470
471 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
472    is ignored and the lc_ctype value, when the database is opened, is set to align with
473    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
474    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
475    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
476    the GETACP is used to determine the Windows code page.
477
478 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
479    name used as the lc_ctype when the database was opened. Only valid while the
480    Database is connected.
481
482 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
483    id that corresponds to the DefaultCharSetName.
484
485 IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
486
487 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
488   path is given and database attach fails due to access permission issues on the
489   temp directory or security database, then the attach is retried with "localhost:"
490   prefixing the databasename. This should avoid problems when the database has to
491   be accessed by a local (e.g. classic) server and libfbembed is used.
492
493 2. Windows: revised search order for Firebird DLL:
494     i.   The Firebird Embedded Server in the application Directory.
495     ii.  If the FIREBIRD environment variable is set then the directory this
496          points to is searched for the FB Client DLL and then then underlying
497          "bin" directory.
498     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
499          is used to locate the Firebird installation directory and the underlying
500          "bin" directory is searched for the FB Client DLL.
501     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
502          are searched for the FB Client DLL.
503     v.   The PATH Environment variable is used to search for the FB Client DLL.
504     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
505
506 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
507   See doc/readme.scriptengine and example applications.
508
509 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
510   simplify the use of the embedded firebird server on both Linux and Windows platforms.
511   See dpc/readme.localdatabase and example applications.
512
513 5. IBDynamicGrid: Reordering on column header click should now also work for
514   dynamic columns.
515
516 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
517   between incrementing/decrementing the lock count and signalling the event.
518
519 IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
520
521 1.3.2 was never formally released and only made available as beta copies.
522
523 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
524
525 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
526
527 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
528
529 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
530   i.e. when it is a calculated field
531
532 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
533   This problem was due to a race condition between recalculating row heights and
534   determining which row was selected by the mouse click. The row height calculation
535   is now deferred by an extra trip round the message loop allowing the row to
536   be always calculated on the current grid layout rather than risking it being
537   calculated on the grid layout after the expanded row has been shrunk.
538
539 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
540   Windows.
541
542 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
543   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
544   to be determined at runtime. See doc/readme.charactersets.html.
545
546 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
547   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
548
549 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
550   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
551   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
552
553   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
554   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
555   implies no truncation.
556
557 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
558
559 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
560   (avoids "Not in Edit Mode" error).
561
562 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
563
564 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
565    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
566
567 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
568
569 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
570
571 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
572
573 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
574
575 IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
576
577 1.   OnCloseUp Event Handler added to TDBLookupProperties
578
579 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
580     problem with row size when exception is called.
581
582 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
583
584 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
585     in a TCustomComboBox and ignores return key if in a TCustomMemo
586
587 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
588     keyed in i.e. when autocomplete not performed
589
590 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
591     console mode applications with all LCL required functions (builtin dialogs and
592     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
593     not included in your project, IBX should compile and link with a console mode program.
594     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
595     console mode application or the IDE will automatically assume that your
596     application is GUI based. Instead, you should include the ibexpressconsolemode package.
597
598     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
599     to use the built in dialogs and cursor management. IBDialogs is
600     included by default if "ibexpress" is in your project source's "uses" clause.
601     This should be the case for all projects created through the IDE. This is why
602     you do not want to add the ibexpress package to console mode applications. The
603     ibexpressconsolemode package has been created to allow console mode programs
604     to avoid adding LCL dependencies when using IBX, while still having the
605     unit search paths set up correctly.
606
607     Existing users should check to ensure that the "ibexpress" unit is included in
608     each project's source file (*.lpr).
609
610     You may find that in order for the IDE to recognise that ibexpressconsolemode
611     exists, you have to first open the package in the IDE and then close it. This
612     adds it to the most recently accessed packages list. To make it permanently
613     available, add the package name to lazarus' staticpackages.inc file.
614
615         Thanks to Julio Jiménez for suggesting support of console mode.
616
617 7.   SQL Parser can now accept quoted strings that include new lines
618
619 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
620     of text on start of edit. This is particularly useful when tabbing to a
621     column and then inserting text.
622
623 9.   New Examples provided for IB Services and ISQLMonitor.
624
625 10. Fix error when writing to blob streams that recorded only the last buffer
626    write in the blob stream. In most cases, this did not cause a problem as the
627    IB Blob Stream is written in a single write. However, with the TDBImage, write
628    of a graphic type prefix was lost which caused a problem when the image could
629        not be automatically recognised.
630
631 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
632    already open" errors due to random numbers used for the cursor name being identical.
633
634 12. IBTable: corrected error that could result in an "Index out of bounds" error
635    when opening the table and the Primary Key is the last or only column in the
636    table. Thanks to Rick Hoover for the fix.
637
638 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
639    of "UTF-8", and update list of available database character sets. Existing
640    users should check the current lc_ctype setting in their applications.
641
642 IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
643
644 1.  Firebird Services: avoid List Index error when opening a service with an
645    empty Params property.
646
647 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
648    Link now set up in Loaded method - avoids occasional failure to apply
649    SQL markup on initial open.
650
651 3.  "Employees" example performance improvements when scrolling.
652
653 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
654    TFrame. Force recaching of selected frame to avoid GTK race (results in a
655    random image cached).
656
657 5.  DBControlGrid: Should now react to changes in panel height at run time.
658
659 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
660    even when further rows exist.
661
662 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
663    always be derived from panel height and setting this property can cause confusion.
664    Note for existing projects: to avoid a missing property error at run time,
665    each form using the DBControlGrid must be opened, updated and saved in the IDE
666    in order to remove the property value from the lfm.
667
668
669 IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
670
671 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
672    call Prepare before setting parameter values.
673
674 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
675
676 3.  Code tidyup and more robust handling of dsql information result vector.
677
678 4.  Support for centralised handling of transaction status changes. TIBTransaction
679    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
680    and "AfterExecQuery". The first three are called after the same event is called
681    for an IBCustomDataSet descendent using the Transaction. The fourth is called
682    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
683    enable monitoring of transaction status changes for a given transaction to be
684    handled in a single place. For example, when a change to the dataset occurs
685    an indicator can be set that shows the user that in order to save changes,
686    the transaction should be committed.  Rather than doing this per dataset, this
687    can now be done per transaction.
688
689 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
690    the dataset is scrolled. However, any changes to the current row are, by default,
691    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
692    have a new property "DataSetCloseAction" that adds automatic posting of changes
693    on dataset close. If this property is set to dcDiscardChanges (default) then the
694    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
695    then IBX will attempt to post any unsaved changes before the dataset is closed
696    (and after the BeforeClose event handler is called). The exception is when the
697    dataset is being closed as a result of a transaction rollback. In this case,
698    no action is taken and any unsaved  changes are discarded. This avoids both
699    unnecessary overhead and the risk that a validation error may occur in the Post
700    raising an exception and thereby preventing a rollback.
701
702 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
703    In earlier versions, the Display Width was set to the maximum byte width rather than the character
704    width. Display Widths are now corrected by dividing by the max byte width per character.
705    For UTF8 character sets, the byte width is four and hence the Display Width will be
706    the byte width divided by 4. The byte width of each character set is determined
707    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
708    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
709
710 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
711
712 8.  IBLookupComboEditBox: List should now always be restored to full list when the
713    control loses focus. Default Key press default interval reduced to 200ms.
714
715 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
716    when dataset rows are less than visible rows.
717
718 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
719    does not exist or DataSet is empty. More responsive on dataset open. New event
720    OnRestorePosition. Column sort disabled if no header row.
721
722 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
723    while dataset state is dsInsert. Avoids posting errors.
724
725 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
726    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
727
728 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
729
730 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
731    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
732    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
733    always "posts" the current record regardless or whether or not it may be more appropriate
734    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
735    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
736    as the first action of the "Post" method and allows the handler to convert the Post
737    into a Cancel if that is the appropriate action on moving to a different row. This is
738    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
739    raised here, but it may still be more appropriate to validate a post and signal
740    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
741
742 15. On Unix derived systems, the Firebird library name can now be given as a colon
743    separated list. Each library name on the list is tried in turn, in left to right
744    order with the first found being used as the firebird library. By default, on Linux,
745    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
746    overidden by the FBLIB environment variable or the OnGetLibraryName function.
747
748    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
749    then it will still attempt to access the database via the Firebird Server and will
750    require a username and password. If only the pathname is given, then the username
751    and password should be omitted and the unix file permissions are used to grant
752    access.
753
754 IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
755
756 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
757    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
758    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
759    corresponds to a row of the linked DataSource. Any data aware control on the
760    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
761
762 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
763   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
764   takes place during database access. This may be useful when there are performance issues with
765   the change of cursor. Setting the property to false suppresses the change of cursor.
766
767 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
768   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
769   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
770   making all changes permanent immediately rather than when the transaction is explicitly
771   committed.
772
773 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
774   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
775
776 IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
777
778 Development version only.
779
780 IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
781
782 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
783   This is typically used during an "OnBeforeOpen" event handler to manipulate the
784   "Where" and "Having" clauses to implement user specified filters of arbitrary
785   complexity.
786
787 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
788   three new data aware controls dependent on IBX and which make use of the SQL Parser.
789   These are:
790
791   - TIBLookupComboEditBox
792   - TIBDynamicGrid
793   - TIBTreeview
794
795   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
796   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
797   to revise the available list and restrict it to items that are prefixed by the
798   typed text (either case sensitive or case insensitive). Autoinsert allows a
799   newly typed entry to be added to the list dataset and included in the available
800   list items.
801
802   TIBDynamicGrid is a TDBGrid descendent that provides for:
803   - automatic resizing of selected columns to fill the available row length
804   - automatic positioning and sizing of a "totals" control, typically at the
805     column footer, on a per column basis.
806   - DataSet resorting on header row click, sorting the dataset by the selected column.
807     A second click on the same header cell reversed the sort order.
808   - Support for a "Panel Editor". That is on clicking the indicator column, the row
809     is automatically expanded and a panel superimposed on it. The panel can have any
810     number of child controls, typically data aware controls with the same datasource
811     as the grid allowing for editing of additional fields and more complex editors.
812   - Reselection of the same row following resorting.
813   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
814     Its properties are specified on a per column basis and allows for one or more
815     columns to have their values selected from a list provided by a dataset.
816     Autocomplete and autoinsert are also available. The existing picklist editor
817     is unaffected by the extension.
818
819   TIBTreeView is a data aware TCustomTreeView.
820
821 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
822   zero scale will no longer return an error. An Int64 will be returned instead.
823
824 4. TIBTransaction now has events for Before and After Transaction End and a new function
825   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
826
827 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
828   repeated multiple times.
829
830 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
831   check used to get in the way of using Stored Procedures, and "Update or Insert"
832   statements.
833
834 7. Insert, Modify and Delete property Editors now support Query Generation from
835   Stored Procedures.
836
837 8. Three new examples illustrate the use of the new IB Controls
838
839
840 IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
841
842 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
843   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
844   Gabor Boros for reporting this problem and for testing the improvements).
845
846 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
847   See readme.field+param.names in the doc folder.
848
849 3. IBX SQL Editors will now automatically add double quotes around column names when the database
850   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
851
852 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
853
854 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
855   actions.
856
857 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
858   thanks to Yuriy Kopnin for pointing this out).
859
860 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
861
862 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
863   for both fields and parameter setting.
864
865 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
866   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
867
868 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
869    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
870
871 11. TIBTable now has a property editor for "MasterFields"
872
873 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
874    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
875
876 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
877    of settings is unrecognised. Selecting this radio button has no effect on the settings.
878  
879
880 IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
881
882 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
883
884 IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
885
886 1. In a TIBCustomDataset descendent, a generator now only sets the value when
887   it is null. This allows for alternative user defined setting of the generator
888
889   Many thanks to Julio Jiménez for this fix
890
891 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
892   and suggests that the user may have forgotten to install it.
893
894 IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
895
896 1. Conditional compilation used to limit registration of TIntegerField to
897   Lazarus versions less than 1.1
898
899 2. When a database connection is created, character set is now by default set
900   to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
901   1250 to 1254.
902
903
904 IBX Change Log  version     (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
905
906 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
907
908
909 IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
910
911 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
912   Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
913
914 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
915   package is changed to do this (which it should do).
916
917 IBX Change Log  version (1.0-0)  Sat, 28 Apr 2012 16:43:00 +0100
918
919 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
920
921 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
922
923 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
924
925 4. Property editors should now correctly resize.
926
927 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
928   (restored original functionality)
929
930 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
931   library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.

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