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Revision 49 by tony, Thu Feb 2 16:20:12 2017 UTC vs.
Revision 107 by tony, Thu Jan 18 14:37:40 2018 UTC

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1 < IBX Change Log  version                  (2.0-2) tba, 09 Jan 2017 15:31:49 +0000
1 > IBX Change Log  version                                    (2.2-0) Mon, 15 Jan 2018 23:43:19 +0000
2  
3 < 1. TIBDatabase.CreateDatabase: extract full DB Name using reg ex in order to
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 >
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
70 >   changes.
71 >
72 > 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
73 >   Bug could result in truncated multi-byte character set values.
74 >
75 > 3. Changes consequential on moving fbintf character set utility functions from
76 >   IFirebirdAPI to IAttachment.
77 >
78 > 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
79 >
80 > 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
81 >   results in autocomplete ignoring prefix text.
82 >
83 > 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
84 >   entering a new name into the text box.
85 >
86 > 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
87 >   Firebird rather than recomputing it.
88 >
89 > 8. Property Editor positioning tidy up: All IBX Property editors should now be
90 >   screen centre. Previously some were "poDesigned" which may be inappropriate
91 >   for multi monitor desktops.
92 >
93 > 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
94 >
95 > 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
96 >    a transaction and always reset the object.
97 >
98 > 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
99 >
100 > 13. TIBXScript: Allow for override of database filename in Create Database statements.
101 >
102 > 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
103 >    to a gbak format archive.
104 >
105 > 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
106 >
107 > 16. IBLocaldb: Drop database if error creating an empty database.
108 >
109 > 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
110 >    unless selected node not in current dataset.
111 >
112 > 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
113 >    to TIBCustomService, and IBlocalDB code tidy up.
114 >
115 > 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
116 >    behaviour due to uninitialised variable.
117 >
118 > 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
119 >    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
120 >
121 > 21. IBSQL: When Database changed ensure that all resources are freed.
122 >
123 > 22. IBCustomDataset: When database changed ensure that queries an unprepared.
124 >
125 > 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
126 >    * Line Wrap on SQL Token boundaries (on user command)
127 >    * auto-complete table names in drop down list of table names
128 >    * Double click on tablename or field name adds to SQL text
129 >
130 > 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
131 >
132 > 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
133 >    TVariantArray. Seems to avoid memory corruption in Windows (probably a
134 >    workaround for a problem in fpc 3.0.4 win64).
135 >
136 > 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
137 >
138 > 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
139 >
140 > IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
141 >
142 > 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
143     include remote system name.
144  
145   2. TIBExtract: No longer include comment header and COMMIT statement for empty
# Line 14 | Line 153 | IBX Change Log  version
153  
154   5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
155  
156 + 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
157 +   that BindFields is called when the query is next activated. Avoids FieldName
158 +   not found error.
159 +
160 + 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
161 +   purpose and allows the programmer to define any action they want for Update, Insert
162 +   or Delete. This may be complex SQL (similar to a Trigger), application specific
163 +   filtering of updates, or use of statements such as Grant or Revoke instead of
164 +   normal DML. See User Manual for more information.
165 +
166   IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
167  
168   1. TIBEvents: Fix uninitialised variable that could result in lost events.
# Line 62 | Line 211 | IBX Change Log  version
211  
212   IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
213  
214 < See also doc/readme.upgrade-4-x.to.2-0-0.xhtml for important information on
214 > See also doc/IBX4LazarusGuide.pdf for important information on
215   upgrading to IBX2.
216  
217   1. Size property of TIBStringField is now the width in characters of the field

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