--- ibx/trunk/changelog 2017/10/03 14:08:11 67 +++ ibx/trunk/changelog 2018/01/24 16:16:29 139 @@ -1,4 +1,96 @@ -IBX Change Log version (2.0.3) tba, 24 Feb 2017 12:17:53 +0000 +IBX Change Log version (2.2-0) Tue, 23 Jan 2018 11:23:09 +0000 + +1. IBExtract: Identity columns - add additional check for null column for generator name. + +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 executing 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. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as + they are called when the dataset row is being deleted, there is no value in + updating the current record from the query result. Instead, a new event handler + "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and + an OnDeleteReturning event handler is provided then it is called with the IResults returned + by the query. The event handler can then interrogate the query results and + perform whatever action is necessary. For example to confirm, to the user, + the deletion of a row with the returned values. + +4. 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. + +5. TIBTable: The GeneratorField property is now published. + +6. 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. + +7. 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. + +8. TIBGenerator: small performance improvement by not preparing query each time + a new value is generated. + +9. TIBSQL: Free resources when transaction changed - ensures new transaction is used. + +10. 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. + +11. 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). + +12. 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). + +13. 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. + +14. 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. + +15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting + for password on reconnect. + +16. IBDatabase: use IAttachment for connection default character set id, code page + and character set name. + +17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise + DB info lookups" + +18. IBExtract: now supports DDL Triggers. + +19. Add a property Editor for TIBUpdate.RefreshSQL. + +20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input + parameters. This stops an exception being raised when the field cannot be + located in the record buffer. + + +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. @@ -24,6 +116,53 @@ IBX Change Log version 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 @@ -44,6 +183,12 @@ IBX Change Log version 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.