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Revision 47 by tony, Mon Jan 9 15:31:51 2017 UTC vs.
Revision 107 by tony, Thu Jan 18 14:37:40 2018 UTC

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1 + IBX Change Log  version                                    (2.2-0) Mon, 15 Jan 2018 23:43:19 +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 +
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
146 +   tables when data included in output.
147 +
148 + 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
149 +   and timing information to be written to stdout. This may be used to locate
150 +   performance bottlenecks.
151 +
152 + 4. SQLParser: only call "OnChanging" event handler when value is different.
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 46 | 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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