--- ibx/trunk/changelog 2016/12/06 10:33:46 45 +++ ibx/trunk/changelog 2018/01/18 14:37:48 109 @@ -1,7 +1,220 @@ +IBX Change Log version (2.2-0) Tue, 16 Jan 2018 16:49:07 +0000 -IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000 +1. IBExtract: Identity columns - add additional check for null column for generator name. -See also doc/readme.upgrade-4-x.to.2-0-0.xhtml for important information on +2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses. + The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further + information). However, this is also a very useful mechanism for returning updated computed by + column values. Values returned as a result of executing an Insert or Update statement + replace existing values in the current row for each corresponding column. + + Previously, if a dataset's select query included read only (computed by) fields then + an automatic row refresh was performed after an insert or update query had been processed, + irrespective of the setting of the "ForcedUpdates" property. This has changed such + that an automatic refresh is no longer performed if an insert or update query contains + a returning clause that updates one or more fields on the current row. A full row + refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any + field values and the select query contains read only fields. Use of Insert/update + returning should be significantly more efficient than excuting a refresh query. + + This behaviour change is intended to be backwards compatible and there should be no need to change + existing programs, other than to improve performance by using the new capability. + +3. TIBTable: generated Insert and Update SQL now include a RETURNING clause for + any Computed By or Identity Columns. The IBTables example has been updated to + illustrate the computation of the employee Full Name on update. + +4. TIBTable: The GeneratorField property is now published. + +5. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List. + When InsertSQL is generated, the Identity columns are not included in the list of values to + be inserted. A RETURNING clause is added to the insert statement to return the value of + each Identity column after the insert is executed. + +6. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause. + Similarly Insert Property Editor now generates Insert SQL with Computed By fields in + Insert..Returning clause. + +7. TIBGenerator: small performance improvement by not preparing query each time + a new value is generated. + +8. TIBSQL: Free resources when transaction changed - ensures new transaction is used. + +9. Property editors will now sync table name to a System Table when "Include System + Tables" is selected and the query is for a System Table. + +10. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field + values are no longer converted to milliseconds from TDateTime and then back again + to TDateTime (the conversion to milliseconds is the default TDataset approach). + +11. Property Editors handling of Stored Procedures. + * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and + which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select + query). + * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2). + +12. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName + can be used to select a package. If non-empty, the stored procedure name is + expected to be a stored procedure defined in the specified package and the + generated SQL will be as required for a stored procedure located in a package. + +13. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include + a "Package Name" drop down box to allow selection of a Firebird 3 Package from + which a stored procedure can be selected. With no package name selected, non-package + stored procedures are listed. + +14. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting + for password on reconnect. + + +IBX Change Log version (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000 + +1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf + changes. + +2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString. + Bug could result in truncated multi-byte character set values. + +3. Changes consequential on moving fbintf character set utility functions from + IFirebirdAPI to IAttachment. + +4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true + +5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally + results in autocomplete ignoring prefix text. + +6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when + entering a new name into the text box. + +7. IBCustomDataset: ensure that TIBStringField uses the field size reported by + Firebird rather than recomputing it. + +8. Property Editor positioning tidy up: All IBX Property editors should now be + screen centre. Previously some were "poDesigned" which may be inappropriate + for multi monitor desktops. + +10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node. + +11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending + a transaction and always reset the object. + +12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows. + +13. TIBXScript: Allow for override of database filename in Create Database statements. + +14. IBLocaldb: Support initialisation of the database from an SQL script in addition + to a gbak format archive. + +15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised. + +16. IBLocaldb: Drop database if error creating an empty database. + +17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset + unless selected node not in current dataset. + +18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package) + to TIBCustomService, and IBlocalDB code tidy up. + +19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable + behaviour due to uninitialised variable. + +20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from + integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode. + +21. IBSQL: When Database changed ensure that all resources are freed. + +22. IBCustomDataset: When database changed ensure that queries an unprepared. + +23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include: + * Line Wrap on SQL Token boundaries (on user command) + * auto-complete table names in drop down list of table names + * Double click on tablename or field name adds to SQL text + +24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d). + +25. IBTreeView: Call to FindNode: param type change from "array of Variant" to + TVariantArray. Seems to avoid memory corruption in Windows (probably a + workaround for a problem in fpc 3.0.4 win64). + +26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open. + +27. IBDatabaseInfo: Remove memory leak when accessing database operation counts. + +IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000 + +1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to + include remote system name. + +2. TIBExtract: No longer include comment header and COMMIT statement for empty + tables when data included in output. + +3. Profiling: IBSQL now has conditional compilation flags to enable query performance + and timing information to be written to stdout. This may be used to locate + performance bottlenecks. + +4. SQLParser: only call "OnChanging" event handler when value is different. + +5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit + +6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures + that BindFields is called when the query is next activated. Avoids FieldName + not found error. + +7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general + purpose and allows the programmer to define any action they want for Update, Insert + or Delete. This may be complex SQL (similar to a Trigger), application specific + filtering of updates, or use of statements such as Grant or Revoke instead of + normal DML. See User Manual for more information. + +IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000 + +1. TIBEvents: Fix uninitialised variable that could result in lost events. + +2. TIBExtract: Added support for FB3 "USAGE" privilege. + +3. TIBExtract: data formatted as Charset set "octets" is now output using + hexadecimal notation. + +4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements + using a simple XML format. + +5. TIBExtract: extract of individual Triggers and Stored Procedures can now include + grants to these objects. + +6. TIBExtract: Stored Procedures and Views output in dependency order to avoid + dependency problems restoring complex databases. + +7. TIBXScript: This component has been restructured to allow for the processing of + embedded XML in INSERT statements and to support interactive sources in addition + to non-interactive data sources such as files. + +8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported. + +9. TIBXScript: ISQL compatiable Set statements are now supported: + SET SQL DIALECT + SET TERM + SET AUTODDL + SET BAIL + SET ECHO + SET COUNT + SET STATS + SET NAMES + +10. IBVersion unit added to hold current IBX Version Number information. + +11. TIBExtract: Use character rather than byte length for VarChar procedure arguments., + and domain definitions. + +12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers + fully supported. + +13. TIBExtract: when a database dump includes data, the generator values are now also set. + +14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later. + +IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000 + +See also doc/IBX4LazarusGuide.pdf for important information on upgrading to IBX2. 1. Size property of TIBStringField is now the width in characters of the field