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Revision 67 by tony, Tue Oct 3 14:08:11 2017 UTC vs.
Revision 109 by tony, Thu Jan 18 14:37:48 2018 UTC

# Line 1 | Line 1
1 < IBX Change Log  version                   (2.0.3) tba, 24 Feb 2017 12:17:53 +0000
1 > IBX Change Log  version                                     (2.2-0) Tue, 16 Jan 2018 16:49:07 +0000
2 >
3 > 1. IBExtract: Identity columns - add additional check for null column for generator name.
4 >
5 > 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6 >   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7 >   information). However, this is also a very useful mechanism for returning updated computed by
8 >   column values. Values returned as a result of executing an Insert or Update statement
9 >   replace existing values in the current row for each corresponding column.
10 >
11 >   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 excuting a refresh query.
19 >
20 >   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.
22 >
23 > 3. 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.
26 >
27 > 4. TIBTable: The GeneratorField property is now published.
28 >
29 > 5. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
30 >   When InsertSQL is generated, the Identity columns are not included in the list of values to
31 >   be inserted. A RETURNING clause is added to the insert statement to return the value of
32 >   each Identity column after the insert is executed.
33 >
34 > 6. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
35 >   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
36 >   Insert..Returning clause.
37 >
38 > 7. TIBGenerator: small performance improvement by not preparing query each time
39 >   a new value is generated.
40 >
41 > 8. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
42 >
43 > 9. Property editors will now sync table name to a System Table when "Include System
44 >   Tables" is selected and the query is for a System Table.
45 >
46 > 10. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
47 >    values are no longer converted to milliseconds from TDateTime and then back again
48 >    to TDateTime (the conversion to milliseconds is the default TDataset approach).
49 >
50 > 11. Property Editors handling of Stored Procedures.
51 >    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
52 >      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
53 >      query).
54 >    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
55 >
56 > 12. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
57 >    can be used to select a package. If non-empty, the stored procedure name is
58 >    expected to be a stored procedure defined in the specified package and the
59 >    generated SQL will be as required for a stored procedure located in a package.
60 >
61 > 13. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
62 >    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
63 >    which a stored procedure can be selected. With no package name selected, non-package
64 >    stored procedures are listed.
65 >
66 > 14. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
67 >    for password on reconnect.
68 >
69 >
70 > IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
71  
72   1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
73     changes.
# Line 24 | Line 93 | IBX Change Log  version
93     screen centre. Previously some were "poDesigned" which may be inappropriate
94     for multi monitor desktops.
95  
96 + 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
97 +
98 + 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
99 +    a transaction and always reset the object.
100 +
101 + 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
102 +
103 + 13. TIBXScript: Allow for override of database filename in Create Database statements.
104 +
105 + 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
106 +    to a gbak format archive.
107 +
108 + 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
109 +
110 + 16. IBLocaldb: Drop database if error creating an empty database.
111 +
112 + 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
113 +    unless selected node not in current dataset.
114 +
115 + 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
116 +    to TIBCustomService, and IBlocalDB code tidy up.
117 +
118 + 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
119 +    behaviour due to uninitialised variable.
120 +
121 + 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
122 +    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
123 +
124 + 21. IBSQL: When Database changed ensure that all resources are freed.
125 +
126 + 22. IBCustomDataset: When database changed ensure that queries an unprepared.
127 +
128 + 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
129 +    * Line Wrap on SQL Token boundaries (on user command)
130 +    * auto-complete table names in drop down list of table names
131 +    * Double click on tablename or field name adds to SQL text
132 +
133 + 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
134 +
135 + 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
136 +    TVariantArray. Seems to avoid memory corruption in Windows (probably a
137 +    workaround for a problem in fpc 3.0.4 win64).
138 +
139 + 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
140 +
141 + 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
142 +
143   IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
144  
145   1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
# Line 44 | Line 160 | IBX Change Log  version
160     that BindFields is called when the query is next activated. Avoids FieldName
161     not found error.
162  
163 + 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
164 +   purpose and allows the programmer to define any action they want for Update, Insert
165 +   or Delete. This may be complex SQL (similar to a Trigger), application specific
166 +   filtering of updates, or use of statements such as Grant or Revoke instead of
167 +   normal DML. See User Manual for more information.
168 +
169   IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
170  
171   1. TIBEvents: Fix uninitialised variable that could result in lost events.

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