[ViewVC] Diff of: public/ibx/trunk/changelog

Comparing ibx/trunk/changelog (file contents):
Revision 35 by tony, Tue Jan 26 14:38:47 2016 UTC vs.
Revision 141 by tony, Thu Jan 25 14:18:12 2018 UTC

-+
+IBX Change Log  version                                              (2.2-0) Thu, 25 Jan 2018 13:56:39 +0000
-+
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+. IBExtract: Identity columns - add additional check for null column for generator name.
-+
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+. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
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+   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
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+   information). However, this is also a very useful mechanism for returning updated computed by
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+   column values. Values returned as a result of executing an Insert or Update statement
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+   replace existing values in the current row for each corresponding column.
-+
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+   Previously, if a dataset's select query included read only (computed by) fields then
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+   an automatic row refresh was performed after an insert or update query had been processed,
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+   irrespective of the setting of the "ForcedUpdates" property. This has changed such
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+   that an automatic refresh is no longer performed if an insert or update query contains
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+   a returning clause that updates one or more fields on the current row. A full row
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+   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
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+   field values and the select query contains read only fields. Use of Insert/update
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+   returning should be significantly more efficient than executing a refresh query.
-+
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+   This behaviour change is intended to be backwards compatible and there should be no need to change
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+   existing programs, other than to improve performance by using the new capability.
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+. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
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+   they are called when the dataset row is being deleted, there is no value in
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+   updating the current record from the query result. Instead, a new event handler
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+   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
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+   an OnDeleteReturning event handler is provided then it is called with the IResults returned
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+   by the query. The event handler can then interrogate the query results and
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+   perform whatever action is necessary. For example to confirm, to the user,
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+   the deletion of a row with the returned values.
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+. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
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+   any Computed By or Identity Columns. The IBTables example has been updated to
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+   illustrate the computation of the employee Full Name on update.
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+. TIBTable: The GeneratorField property is now published.
-+
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+. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
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+   When InsertSQL is generated, the Identity columns are not included in the list of values to
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+   be inserted. A RETURNING clause is added to the insert statement to return the value of
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+   each Identity column after the insert is executed.
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+. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
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+   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
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+   Insert..Returning clause.
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+. TIBGenerator: small performance improvement by not preparing query each time
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+   a new value is generated.
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+. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
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+. Property editors will now sync table name to a System Table when "Include System
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+    Tables" is selected and the query is for a System Table.
-+
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+. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
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+    values are no longer converted to milliseconds from TDateTime and then back again
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+    to TDateTime (the conversion to milliseconds is the default TDataset approach).
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+. Property Editors handling of Stored Procedures.
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+    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
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+      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
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+      query).
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+    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
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+. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
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+    can be used to select a package. If non-empty, the stored procedure name is
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+    expected to be a stored procedure defined in the specified package and the
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+    generated SQL will be as required for a stored procedure located in a package.
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+. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
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+    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
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+    which a stored procedure can be selected. With no package name selected, non-package
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+    stored procedures are listed.
-+
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+. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
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+    for password on reconnect.
-+
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+. IBDatabase: use IAttachment for connection default character set id, code page
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+    and character set name.
-+
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+. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
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+    DB info lookups"
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+. IBExtract: now supports DDL Triggers.
-+
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+. Add a property Editor for TIBUpdate.RefreshSQL.
-+
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+. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
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+    parameters. This stops an exception being raised when the field cannot be
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+    located in the record buffer.
-+
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+. Property Editors now automatically include System Tables when opened and when the query table
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+    is a System Table.
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+. FB3UserManager example added to illustrate use if IBX for managing user logins, passwords
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+    and connections using IBX and with single or multiple security databases.
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-+
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+IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
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+. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
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+   changes.
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+. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
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+   Bug could result in truncated multi-byte character set values.
-+
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+. Changes consequential on moving fbintf character set utility functions from
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+   IFirebirdAPI to IAttachment.
-+
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+. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
-+
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+. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
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+   results in autocomplete ignoring prefix text.
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+. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
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+   entering a new name into the text box.
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+. IBCustomDataset: ensure that TIBStringField uses the field size reported by
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+   Firebird rather than recomputing it.
-+
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+. Property Editor positioning tidy up: All IBX Property editors should now be
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+   screen centre. Previously some were "poDesigned" which may be inappropriate
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+   for multi monitor desktops.
-+
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+. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
-+
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+. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
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+    a transaction and always reset the object.
-+
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+. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
-+
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+. TIBXScript: Allow for override of database filename in Create Database statements.
-+
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+. IBLocaldb: Support initialisation of the database from an SQL script in addition
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+    to a gbak format archive.
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+. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
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+. IBLocaldb: Drop database if error creating an empty database.
-+
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+. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
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+    unless selected node not in current dataset.
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+. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
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+    to TIBCustomService, and IBlocalDB code tidy up.
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+. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
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+    behaviour due to uninitialised variable.
-+
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+. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
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+    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
-+
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+. IBSQL: When Database changed ensure that all resources are freed.
-+
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+. IBCustomDataset: When database changed ensure that queries an unprepared.
-+
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+. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
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+    * Line Wrap on SQL Token boundaries (on user command)
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+    * auto-complete table names in drop down list of table names
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+    * Double click on tablename or field name adds to SQL text
-+
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+. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
-+
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+. IBTreeView: Call to FindNode: param type change from "array of Variant" to
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+    TVariantArray. Seems to avoid memory corruption in Windows (probably a
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+    workaround for a problem in fpc 3.0.4 win64).
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+. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
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+. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
-+
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+IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
-+
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+. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
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+   include remote system name.
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+. TIBExtract: No longer include comment header and COMMIT statement for empty
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+   tables when data included in output.
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+. Profiling: IBSQL now has conditional compilation flags to enable query performance
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+   and timing information to be written to stdout. This may be used to locate
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+   performance bottlenecks.
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+. SQLParser: only call "OnChanging" event handler when value is different.
-+
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+. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
-+
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+. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
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+   that BindFields is called when the query is next activated. Avoids FieldName
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+   not found error.
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+. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
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+   purpose and allows the programmer to define any action they want for Update, Insert
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+   or Delete. This may be complex SQL (similar to a Trigger), application specific
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+   filtering of updates, or use of statements such as Grant or Revoke instead of
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+   normal DML. See User Manual for more information.
-+
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+IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
-+
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+. TIBEvents: Fix uninitialised variable that could result in lost events.
-+
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+. TIBExtract: Added support for FB3 "USAGE" privilege.
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+. TIBExtract: data formatted as Charset set "octets" is now output using
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+   hexadecimal notation.
-+
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+. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
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+   using a simple XML format.
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+. TIBExtract: extract of individual Triggers and Stored Procedures can now include
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+   grants to these objects.
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+. TIBExtract: Stored Procedures and Views output in dependency order to avoid
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+   dependency problems restoring complex databases.
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+. TIBXScript: This component has been restructured to allow for the processing of
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+   embedded XML in INSERT statements and to support interactive sources in addition
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+   to non-interactive data sources such as files.
-+
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+. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
-+
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+. TIBXScript: ISQL compatiable Set statements are now supported:
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+   SET SQL DIALECT
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+   SET TERM
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+   SET AUTODDL
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+   SET BAIL
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+   SET ECHO
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+   SET COUNT
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+   SET STATS
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+   SET NAMES <character set>
-+
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+. IBVersion unit added to hold current IBX Version Number information.
-+
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+. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
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+    and domain definitions.
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+. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
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+    fully supported.
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+. TIBExtract: when a database dump includes data, the generator values are now also set.
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+: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
-+
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+IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
-+
-+
+See also doc/IBX4LazarusGuide.pdf for important information on
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+upgrading to IBX2.
-+
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+. Size property of TIBStringField is now the width in characters of the field
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+   and not the byte length. This applies only to multi-byte character sets such
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+   as UTF8. The original approach aligned with TStringField. However, the TStringField
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+   code is not recognised as a bug and hence this change to align the behaviour.
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+   The TStringField change is expected in fpc 3.2.0.
-+
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+. A new property AutoFieldSize: boolean has been added to TIBStringField. When
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+   true (default) then Size property value saved in the lfm is ignored. Size is
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+   always set from the dynamic information read from the database. It is unclear
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+   why anyone would want to override this and set Size to false.
-+
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+. ibxscript: should now handle correctly a Case..End statement within a procedure
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+   block.
-+
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+. IBDatabase: new property - CreateIfNotExists. If true and database does not
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+   exist when an attempt is made to connect to it (run time only) then an attempt
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+   is made to create the database.
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+. IBDatabase: new event - OnCreateDatabase. This event is called after a database
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+   has been successfully created as a result of a call to CreateDatabase or when
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+   creating a database after it was found not to exist.
-+
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+.  DBControlGrid: a race condition could result in the wrong row image being
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+    written to the cache. This has been avoided by a trip round the message
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+    loop before rendering the row image.
-+
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+.  DBControlGrid: It is strongly recommended not to open the source DataSet for
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+    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
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+    known to risk corrupt rendering of row images when the control is first
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+    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
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+    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
-+
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+.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
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+    a TDateEdit control located on an editor panel.
-+
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+.  TIBExtract: brought up-to-date plus many bug fixes.
-+
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+. DBControlGrid: Removed memory leak when updating rows.
-+
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+. TIBCMLocalDBSupport: fixed invalid free on upgrade.
-+
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+IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
-+
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+. IBCustomDataset: When calling SetCodePage, no longer request transliteration
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+   when target codepage is CP_NONE. This is a workaround for
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+   http://bugs.freepascal.org/view.php?id=30622.
-+
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+. DBLog option removed from TIBStatisticalService - not supported by server
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+   since Firebird 1.5.
-+
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+. ibxscript: An error is no longer generated for "on commit preserve rows" or
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+   similar.
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+. IBCodePage: updated mapping between codepages and character id.
-+
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+. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
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+   Firebird. Character sets with a char width of two are not UTF16.
-+
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+. Strings received from the database are now always transliterated into UTF8
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+   regardless of the database character set or connection character set. This
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+   is for compatibility with the LCL.
-+
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+IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
-+
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+. IBBlob: Defer reading of blob until read method called. This avoids having to
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+   read in an entire blob just to get the size of the blob. General performance
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+   improvement when opening datasets containing blobs.
-+
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+. Clearing a  Blob now sets the corresponding field's modified flag.
-+
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+. IBLookupCombo: When not performing auto-complete, original query sort order
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+   is now used.
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+. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
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+   determined.
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+. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
-+
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+. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
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+   lazarus 1.6.0
-+
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+. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
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+   compilation error.
-+
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+IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
-+
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+. No character set specified for connection: when a text blob is retrieved, the
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+  character set is determined by looking up the native character set using then
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+  Firebird API. Otherwise a text mode blob is assumed to have the same character
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+  set as the connection.
-+
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+. TIBGUIInterface: this is an internal interface. Minor type changes to allow
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+   for Login Dialog returing a change to the database path.
-+
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+. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
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+   to be changed from that given in the TIBDatabase/TIBServer component and for the
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+   entered value to be saved on a project specific basis (design time only).
-+
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+. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
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+   column fieldname. If they are the same then it is acts as a look up for the KeyValue
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+   Otherwise, it sets the column text to the selected ListField Value.
-+
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+. IBDynamicGrid: Only visible columns are now taken into account When recalculating
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+   column width.
-+
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+. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
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+   and a case insensitive search is requested.
-+
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+. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
-+
+   or column ListSource.
-+
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+. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
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+   unprepare) when closing and the text has not changed.
-+
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+. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
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+   Less likely to cause a cursor re-use error on Windows.
-+
-+
+.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
-+
+   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
-+
-+
+. TIBTreeView: Guard against nil destination on record changed
-+
-+
+. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
-+
+    string type with the code page set to reflect the returned field encoding after
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+    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
-+
+    earlier versions.
-+
-+
+. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
-+
+    will now result in transliteration to the code page specified for the Firebird driver
-+
+    if the assigned string has a different code page. FPC 3.0.0 onwards only.
-+
-+
+. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
-+
+    is ignored and the lc_ctype value, when the database is opened, is set to align with
-+
+    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
-+
+    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
-+
+.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
-+
+    the GETACP is used to determine the Windows code page.
-+
-+
+. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
-+
+    name used as the lc_ctype when the database was opened. Only valid while the
-+
+    Database is connected.
-+
-+
+. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
-+
+    id that corresponds to the DefaultCharSetName.
-+
-+
+IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
-+
-+
+. Unix: If Firebird Embedded Server shared object is loaded and a local database
-+
+   path is given and database attach fails due to access permission issues on the
-+
+   temp directory or security database, then the attach is retried with "localhost:"
-+
+   prefixing the databasename. This should avoid problems when the database has to
-+
+   be accessed by a local (e.g. classic) server and libfbembed is used.
-+
-+
+. Windows: revised search order for Firebird DLL:
-+
+     i.   The Firebird Embedded Server in the application Directory.
-+
+     ii.  If the FIREBIRD environment variable is set then the directory this
-+
+          points to is searched for the FB Client DLL and then then underlying
-+
+          "bin" directory.
-+
+     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
-+
+          is used to locate the Firebird installation directory and the underlying
-+
+          "bin" directory is searched for the FB Client DLL.
-+
+     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
-+
+          are searched for the FB Client DLL.
-+
+     v.   The PATH Environment variable is used to search for the FB Client DLL.
-+
+     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
-+
-+
+. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
-+
+   See doc/readme.scriptengine and example applications.
-+
-+
+. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
-+
+   simplify the use of the embedded firebird server on both Linux and Windows platforms.
-+
+   See dpc/readme.localdatabase and example applications.
-+
-+
+. IBDynamicGrid: Reordering on column header click should now also work for
-+
+   dynamic columns.
-+
-+
+. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
-+
+   between incrementing/decrementing the lock count and signalling the event.
-+
+IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
-+
+.3.2 was never formally released and only made available as beta copies.
-+
+. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
+. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
+. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
+   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
-<
+   to be determined at runtime.
->
+   to be determined at runtime. See doc/readme.charactersets.html.
+. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
-<
+   TWideStringField. This field type is used with the character size reported by Firebird is two.
->
+   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
+. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
+   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
-<
+, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField).
->
+, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
+   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
+   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero

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Comparing ibx/trunk/changelog (file contents): Revision 35 by tony, Tue Jan 26 14:38:47 2016 UTC vs. Revision 141 by tony, Thu Jan 25 14:18:12 2018 UTC

Diff Legend

Comparing ibx/trunk/changelog (file contents):
Revision 35 by tony, Tue Jan 26 14:38:47 2016 UTC vs.
Revision 141 by tony, Thu Jan 25 14:18:12 2018 UTC