ViewVC Help
View File | Revision Log | Show Annotations | Download File | View Changeset | Root Listing
root/public/ibx/trunk/changelog
(Generate patch)

Comparing ibx/trunk/changelog (file contents):
Revision 102 by tony, Thu Jan 18 14:37:23 2018 UTC vs.
Revision 107 by tony, Thu Jan 18 14:37:40 2018 UTC

# Line 1 | Line 1
1 < IBX Change Log  version                                (2.1-1) Fri, 05 Jan 2018 16:53:58 +0000
1 > IBX Change Log  version                                    (2.2-0) Mon, 15 Jan 2018 23:43:19 +0000
2  
3 < 1. IBExtract: Identity columns - add addition check for null column for generator name.
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). Values returned as a result of executing an Insert or Update statement
8 <   replace existing values in the current row for each corresponding column.
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 < 3. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
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 +
67   IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
68  
69   1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines