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Revision 305 by tony, Fri Jul 17 22:51:19 2020 UTC

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1 < IBX Change Log  version                   (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
1 > FBINTF Change Log  version          (1.1-5 Build 12044) Fri, 17 Apr 2020 12:30:01 +0100
2  
3 < 1. Remove need to check for IsMultiThread by providing access to GUI timers via
4 <   IBGUIInterface. Note: master/detail delay timer does not apply to console
5 <   mode apps.
3 > 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
4 >   case sensitive
5  
6 < 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
8 <   statement. This avoids problems if "Execute Block" is used as the Query.
6 > 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
7  
8 < 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
9 <   internal SQL tokeniser routines.
8 > 3. New API Calls:
9 >        IColumnMetaData.GetStatement
10 >        IColumnMetaData.GetTransaction
11 >        ISQLData.GetStrLength
12 >        IResults.GetStatement
13 >        IAttachment.OpenBlob (using Blob metadata)
14 >        IAttachment.OpenArray (using array metadata)
15  
16 < 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
14 <   as a select statement, with or without CTEs.
16 > 4. FBMessages: removal of unused messages
17  
18 < 5. IBSQLParser: parser now recognises the "ROWS" clause.
18 > 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
19  
20 < 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
19 <   internal SQL tokeniser routines.
20 > 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
21  
22 < 7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
22 <    being raised for valid set statements processed by a data formatter.
22 > FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
23  
24 < 8. New published property for TIBDatabase and TIBXServicesConnection. This is
25 <   FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
26 <   the path of the Firebird Library used by the database/services connection.
24 > 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
25 >   where the second character of the parameter name is a numeric.
26  
27 < 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
28 <   is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
29 <   services connection.
27 > 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
28 >   This returns the isc_version connection information as one or more lines.
29 >   This is the same information as returned by isql with the -z option.
30  
31 < 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
32 <   or param name is not a valid SQL identifier.
31 > 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
32 >   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
33 >   compiler option then the Firebird 3 API is no longer compiled in.
34  
35 < 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
36 <    view of whether the text box should be editable when no DataSource is specified.
37 <    TIBLookupComboEditBox has been updated to workaround this problem. As long as
38 <    ReadOnly is false, the text box is editable when no DataSource is specified.
35 > 4. IColumnMetaData: new method.
36  
37 < 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
38 <    the FBLIB environment variable. If you do not want to permit this then you
39 <    must modify the Register procedure in the design/IBDBReg.pas unit to remove
43 <    this setting.
37 >   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
38 >                        dfDateTime,   {SQL DATETIME}
39 >                        dfTime);
40  
41 < IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
41 >   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
42  
43 < 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
44 <   Utf8EscapeControlChars
43 >   This returns the max. number of characters returned by the "AsString" method
44 >   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
45  
46 < IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
46 > 5. Additional argument for IAttachment.PrepareWithNamedParameters -
47 >     CaseSensitiveParams: boolean = false
48  
49 < IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
50 < all previous copies of the IBX source code tree before installing this release.
49 >   If this argument is set to true then SQL parameter names are assumed to be case
50 >   sensitive and must be referenced (using ISQLParams.ByName) using the case
51 >   sensitive name.
52  
53 < The IBX packages used by most users have not changed, with one exception. The
54 < IBServices unit has been moved to the package iblegacyServices.lpk. To continue
55 < to use the IBServices unit in your applications, please add the iblegacyServices
56 < to the list of dependencies. To do this, open the Project Inspector and select
59 < Add->New Requirement and select "ibLegacyServices" from the list of available
60 < packages.
53 > 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
54 >   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
55 >   .AsCurrency) and then subsequently to update the value to a non-numeric string
56 >   using .AsString.
57  
62 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
63   the IBServices unit providing what is intended to be a clearer and easier to
64   use set of IB Services components. See Chapter 10 of the IBX User Guide for
65   more information and the guide to "Firebird Service Management Using IBX".
66   As indicated above, the legacy services components are still available and
67   provided in a separate package. There is no need to update working applications
68   using the older versions except for an additional package dependency.
58  
70 2. The IBX packages and source code tree have been re-organised in an attempt to
71   finally get rid of the "duplicate ppu" warnings. This re-organisation should
72   not affect existing users. Section 2.3 of the IBX User Guide describes the
73   new set of IBX packages.
59  
60 < 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
76 <   updated to use the new Services API components.
60 > FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
61  
62 < 4. The iblocal package has been updated to use the new Services API components.
62 > 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
63  
64 < 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
65 <   TIBXSecurityService. It had been wrongly classified in the previous version
82 <   as a per database configuration item. It is global to a server and hence
83 <   correctly positioned as part of the Security Package. In the DBAdmin example,
84 <   the setting has moved to the mappings page.
64 > 2. Restrict IsMultiThread check to Unix only for compatibility with
65 >   https://bugs.freepascal.org/view.php?id=30535
66  
67 < 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
68 <   are ignored.
67 > 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
68 >   named parameters and is intended to avoid problems with (e.g.) Execute Block
69 >   and processing internal parameters as statement parameters.
70  
71 < 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
72 <   closed before the database is dropped. Before and After Disconnect event handlers
91 <   are also fired.
71 > 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
72 >   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
73  
74 < 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
94 <   is started and not just the first time.
74 > 5. New function added to IB.pas
75  
76 < 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
97 <   depenendency with comp type.
76 >   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
77  
78 < 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
78 >   This allows a Firebird Library to be loaded from an explicit path. use the
79 >   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
80 >   the library. It is possible to load Firebird libraries from different locations
81 >   simultaneously, each with a distinct IFirebirdAPI.
82  
83 < 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
102 <    then this is recognised and not ignored.
83 > FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
84  
85 < 12. TIBDataSet, TIBQuery, TIBTable: additions:
86 <    function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
106 <    function GetPerfStatistics(var stats: TPerfCounters): boolean;
107 <    property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
85 > 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
86 >   program compiled with -CR command line switch.
87  
88 <    GetRowsAffected returns the affected row counts from the last insert/update/delete
89 <    if EnableStatistics = true then GetPerfStatistics returns the current stats
90 <    counters for the select query. Note: stats accumulate after each fetch from
112 <    the database. To get total query cost after open, call the "Last" method
113 <    and then GetPerfStatistics.
88 > 2. IServiceManager additions (informational):
89 >    function getProtocol: TProtocol;
90 >    function getPortNo: AnsiString;
91  
92 <    See ibx/examples/consolemode for an example of the use of GetPerfStatistics
92 > 3. IServiceManager improved error handling. Interfaces changed:
93 >    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
94 >    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
95 >    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
96  
97 < 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
98 <    in parenthesises.
97 > 4. IAttachment addition (informational)
98 >    function GetSecurityDatabase: AnsiString;
99  
100 < 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
101 <    SQL identifiers are always delimited by double quotes. If false, then they are
102 <    only delimited if the identifier is a reserved word, contains lower case or special
123 <    characters. Set this property to true to retain previous behaviour.
100 > 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
101 >   thus now returns accumulated stats for a select statement from opening a cursor
102 >   up to the last fetch.
103  
104 < 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
105 <    are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
104 > 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
105 >   the problem.
106  
107 < 16. TIBDataSet, TIBQuery, TIBTable: addition:
108 <       property MasterDetailDelay: integer {defaults to zero}
107 > 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
108 >   replaces deprecated "comp" type.
109  
110 <    When non-zero and the dataset is a detail table referencing a master table
132 <    through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
133 <    then a synchronisation delay is added (in milliseconds) between the master
134 <    row changing and the detail dataset being re-opened. If the master dataset
135 <    is scrolled before the delay expires then the delay is reset. This can be used
136 <    to avoid performance overheads when scrolling through a large master dataset.
110 > 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
111  
112 <    Note: uses fptimer and hence requires a thread manager. Under Linux the
139 <    chreads unit must be included in your project. TTimer is not used in order
140 <    to avoid an LCL dependency. Requires FPC 3.0.2 or later.
112 > 11. URL Connection Strings: inet4 and inet6 now recognised.
113  
114 < 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
143 <    with Extract Option eoDatabase.
114 > 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
115  
116 < 18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
146 <    When a deLayoutChanged event is reported on the ListSource dataset, the
147 <    combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
148 <    relationship with the control's datasource (master).
116 > 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
117  
150 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
118  
119 < 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
153 <    stubs. Pedantic fix really, as procedures output in dependency order anyway.
119 > FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
120  
121 < 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
156 <    DDL (Firebird 3 and later only).
121 > 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
122  
123 < 22. TIBLookupComboBox Autocomplete Fixes:
124 <    i. Only appended text is now selected after autocomplete.
125 <    ii. Uppercase keys no longer ignored for autocomplete.
161 <    iii. Retain Prefix case is now honoured correctly.
162 <    iv. When a DataSource is assigned, typing after autocomplete now extends prefix
163 <        before autocomplete performed. i.e. behaviour now the same as when
164 <        no DataSource assigned.
123 > 2. IAttachment: add two new methods
124 >     function HasDefaultCharSet: boolean;
125 >     function GetDefaultCharSetID: integer;
126  
127 < 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
128 <    between SQL statements.
127 >   These return, respectively, true if a connection default character set was
128 >   specified and the character set id of the connection default character set.
129 >   The DefaultCharSetID is cached when the connection is opened and hence does not
130 >   require a database lookup.
131  
132 < 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
170 <    ObjectNames are converted to upper case before matching against metadata object
171 <    names, unless the objectname is delimited by double quotes, in which case, the
172 <    double quotes are removed and the remaining string is used (unmodified) to match
173 <    against the metadata object name.
132 > 3. Avoid exception when a text blob is a stored procedure parameter.
133  
134 <    If true then the ObjectName is used as is without modification and matched
176 <    against the metadata object name. No attempt is made to remove double quotes.
134 > 4. Update test suite to include a test for a stored proc returning a text blob.
135  
136 < 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
137 <    with eoTrigger, these extract types can be used to select only Database Triggers,
138 <    or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
136 > 5. IAttachment: add
137 >      function GetRemoteProtocol: AnsiString;
138 >      function GetODSMajorVersion: integer;
139 >      function GetODSMinorVersion: integer;
140 >      function GetAuthenticationMethod: AnsiString;
141  
142 < 26. TIBXScript: If an exception occurs during the processing of a statement, the
143 <    statement separate character is now reset to the default (';').
142 >   These results are cached when the connection is opened and hence do not
143 >   require a database lookup.
144  
145 < 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
145 > 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
146 >   connect string used to create/connect to the database.
147  
148 < 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
149 <    a commit or reconnect statement and instead activated only when next SQL statement
150 <    is executed.
148 > 7. IAttachment: Create Database using SQL statement. The username and password
149 >   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
150 >   It is now possible to use IAttachment disconnect/connect to reconnect to
151 >   a database for which the initial connection was established by a create
152 >   database sql statement. Available in FPC only.
153  
154 < 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
154 > 8. Update Test 1 to test 5, 6 and 7 above.
155  
156 < 30. TIBXScript: case insensitive regex now used when matching statements instead of
194 <    converting statement to upper case.
156 > 9. IBUtils code tidy up.
157  
158 < 31. TIBExtract: metadata comments now supported. New published property
159 <    IncludeMetaDataComments (default true). If true then metadata comments included
160 <    in extracted DDL. New Extract Object member eoComments. This may be used with
161 <    ExtractObject method to list all metadata comments.
158 > 10. Parameter Block interfaces "find" method. As documented, this should have
159 >   returned a nil interface when the item could not be found. Instead, an empty
160 >   interface item was returned. "Find" now works as documented and will return
161 >   a nil interface if the item cannot be found.
162  
163 < 32. TIBExtract: ListObjectNames method added.
163 > 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
164  
165 < 33. Updated Database component editor to support additional connection string
166 <    types.
165 > 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
166 >    requests with additional parameters. This is to enable support for fb_info_page_contents
167 >    (return of page contents). Response to fb_info_page_contents returned as
168 >    a string with code page CP_NONE.
169  
170 < IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
170 > 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
171 >    test suite updated.
172  
173 < NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
174 < AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
210 < RELEASE.
173 > 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
174 >    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
175  
176 < NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
176 > 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
177 >    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
178 >    default connection port to be specified.
179  
180 < 1. IBExtract: Identity columns - add additional check for null column for generator name.
180 > FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
181  
182 < 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
183 <   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
218 <   information). However, this is also a very useful mechanism for returning updated computed by
219 <   column values. Values returned as a result of executing an Insert or Update statement
220 <   replace existing values in the current row for each corresponding column.
182 > 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
183 >   Scale is no longer ignored.
184  
185 <   Previously, if a dataset's select query included read only (computed by) fields then
186 <   an automatic row refresh was performed after an insert or update query had been processed,
187 <   irrespective of the setting of the "ForcedUpdates" property. This has changed such
188 <   that an automatic refresh is no longer performed if an insert or update query contains
226 <   a returning clause that updates one or more fields on the current row. A full row
227 <   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
228 <   field values and the select query contains read only fields. Use of Insert/update
229 <   returning should be significantly more efficient than executing a refresh query.
185 > 2. Fix issues with setting SQL Param values using SetAsString with Date values
186 >   not in locale format but which are recognised by Firebird. Date values that
187 >   cannot be converted to a string using Pascal library are now passed through
188 >   to Firebird as Text Strings.
189  
190 <   This behaviour change is intended to be backwards compatible and there should be no need to change
191 <   existing programs, other than to improve performance by using the new capability.
190 > 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
191 >   UTF8 and not UNICODE_FSS.
192  
193 < 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
194 <   they are called when the dataset row is being deleted, there is no value in
195 <   updating the current record from the query result. Instead, a new event handler
196 <   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
238 <   an OnDeleteReturning event handler is provided then it is called with the IResults returned
239 <   by the query. The event handler can then interrogate the query results and
240 <   perform whatever action is necessary. For example to confirm, to the user,
241 <   the deletion of a row with the returned values.
193 > 4. Charset ID problem. When using Firebird 3, with no default database character set
194 >   and a column has a non-default collation specified, an incorrect character set
195 >   id was being reported that could result in a 'division by zero' error when
196 >   used by IBX. This has now been fixed.
197  
198 < 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
199 <   any Computed By or Identity Columns. The IBTables example has been updated to
200 <   illustrate the computation of the employee Full Name on update.
198 > 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
199 >   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
200 >   the character sets supported can be updated on a per database basis. That is
201 >   it is possible to add a (Firebird) user defined character set to a database.
202  
203 < 5. TIBTable: The GeneratorField property is now published.
203 > 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
204 >   set supported by Firebird with the API.
205  
206 < 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
207 <   When InsertSQL is generated, the Identity columns are not included in the list of values to
251 <   be inserted. A RETURNING clause is added to the insert statement to return the value of
252 <   each Identity column after the insert is executed.
206 > 7. Add missing isc_info_db_read_only to list of decoded Database Information items
207 >   in FBOutputBlock.pas and update test suite to include this item.
208  
209 < 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
255 <   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
256 <   Insert..Returning clause.
209 > 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
210  
211 < 8. TIBGenerator: small performance improvement by not preparing query each time
212 <   a new value is generated.
211 > 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
212 >   library or finding it by disk location, the PATH environment variable is now also set to
213 >   include the FIREBIRD directory. This is to ensure that the correct dlls in the
214 >   firebird client library dependencies are loaded.
215  
216 < 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
216 > 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
217  
218 < 10. Property editors will now sync table name to a System Table when "Include System
264 <    Tables" is selected and the query is for a System Table.
218 > 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
219  
220 < 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
267 <    values are no longer converted to milliseconds from TDateTime and then back again
268 <    to TDateTime (the conversion to milliseconds is the default TDataset approach).
220 > 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
221  
222 < 12. Property Editors handling of Stored Procedures.
223 <    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
224 <      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
225 <      query).
274 <    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
222 > 13. FB30Statement: A check has been added to ensure that all SQL Parameters
223 >    have been given a value (including NULL). Previously, failing to set the
224 >    value of an SQL Parameter could give rise to unpredictable results or
225 >    an SQLDA error.
226  
227 < 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
277 <    can be used to select a package. If non-empty, the stored procedure name is
278 <    expected to be a stored procedure defined in the specified package and the
279 <    generated SQL will be as required for a stored procedure located in a package.
227 > 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
228  
229 < 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
230 <    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
283 <    which a stored procedure can be selected. With no package name selected, non-package
284 <    stored procedures are listed.
229 > 15. FBAttachment: Avoid string reference count error when processing an Ansistring
230 >    parameter in an array of const passed to IAttachment.OpenCursor, etc.
231  
232 < 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
233 <    for password on reconnect.
232 > 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
233 >    of const passed to IAttachment.OpenCursor, etc.
234  
289 16. TIBDatabase: use IAttachment for connection default character set id, code page
290    and character set name.
235  
236 < 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
293 <    DB info lookups"
236 > FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
237  
238 < 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
238 > 1. Change syntax to Mode Delphi
239  
240 < 19. Add a property Editor for TIBUpdate.RefreshSQL.
240 > 2. Change all uses of string type to explicit AnsiString in order to ensure
241 >   compatibility between Delphi and FPC.
242  
243 < 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
244 <    parameters. This stops an exception being raised when the field cannot be
301 <    located in the record buffer.
243 > 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
244 >   defined for each interface.
245  
246 < 21. Property Editors now automatically include System Tables when opened and when the query table
304 <    is a System Table.
246 > 4. Generics syntax variations for Delphi added
247  
248 < 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
249 <    This avoids errors due to a stale SQRB or SRB being used for the next query.
248 > 5. PChar replaced with PByte expect where an actual string is being referenced,
249 >   where PAnsiChar is used instead.
250  
251 < 23. IBServices: Service attach parameters now include "expected_db". This is used to
310 <    add the SPB item isc_spb_expected_db. This names a database using
311 <    an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
312 <    database. examples/services re-written to illustrate use of "expected_db".
251 > 6. Review of type definitions in IBExternals to ensure Delphi compatibility
252  
253 < 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
315 <    This avoids truncated backups when the server returns a timeout (busy) response.
253 > 7. Testsuite updated for Delphi
254  
255 < 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
255 > FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
256  
257 < 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
258 <    databasenames. These are respectively expanded to the local system's temp directory
321 <    (including trailing delimiter) or to a prescribed data directory (including
322 <    trailing delimiter). Under Unix systems the data directory is a hidden directory
323 <    in the user's home directory. The hidden directory name is either the string returned
324 <    from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
325 <    Under Windows, the directory is the same as the Data Directory as decribed
326 <    above but instead prefixed by the User's application data path. These may be
327 <    used to improve application portability for Personal Databases.
257 > 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
258 >   large blobs and the FB3 API.
259  
260 < 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
261 <    this has not worked for a long time and is not useful either. FieldDefs should be
331 <    managed using the Fields Editor as with any other dataset. To access the fields
332 <    editor for a TIBTable component, double click on the component. The fields editor
333 <    is then displayed.
260 > 2. Update Event Handling algorithm to avoid looping due to recreation of the
261 >   event block.
262  
263 < 28. TIBDatabaseInfo: new properties/function
336 <     * DateDBCreated (returns date/time database created)
337 <     * TransactionCount (returns no. of active transactions)
338 <     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
339 <     * PagesFree (Firebird 3 or later)
340 <     * PagesUsed (Firebird 3 or later)
341 <     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
342 <     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
263 > 3. Avoid invalid XSQLDA error when the only parameter is updated to null
264  
265 < 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
265 > 4. Array Handling: fix problem with text arrays with character set none. When the
266 >   DB connection has a default character set (e.g. UTF8), an error is raised by
267 >   Firebird if the space allocated is not enough to allow for transliteration, even
268 >   though it is not required for character set none.
269  
270 < 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
270 > 5. IBUtils: List of reserved words brought up-to-date
271  
272 < 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
349 <    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
272 > 6. Add ISQL style performance statistics collection to IStatement
273  
274 < 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
275 <    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
353 <    firing during backup and restore.
274 > 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
275 >   CREATE DATABASE statement.
276  
277 < 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
278 <    for verbose output using the new property "StatisticsRequested".
357 <    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
277 > 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
278 >   an array dimension is not mistaken for a named parameter prefix.
279  
280 < 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
280 > 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
281 >   when Character set is octets. Avoids loss of non printable characters at start of string.
282  
283 < 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
284 <    palette. This uses the online validation feature added in Firebird 2.5. The
285 <    services's properties enable inclusion/exclusion of tables and indexes using
364 <    regular expressions. See.
365 <    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
283 > 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
284 >    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
285 >    to enable stats gathering.
286  
287 < 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
368 <    option on a database.
287 > 11. API Version information added as constants to IB.pas
288  
289 < 37. TIBCustomService: Assign method implemented to allow copying of service login
371 <    context between service API components. "Detach" method now only detaches
372 <    service when last reference to the service interface detaches. Tidy up of
373 <    code for SetActive and Attach methods including password hiding.
289 > 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
290  
291 < 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
376 <    and used to determine the auth method and protocol used for the connection.
291 > 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
292  
293 < 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
379 <    a Create Database Statement generated by IBX.
293 > FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
294  
295 < 40. All IBServices now have an additional published property "PortNo". This may
382 <    be set to a non-standard port number when necessary. If zero then the default
383 <    port number is used.
295 > 1. Initial Release
296  
385 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
386    and not just the mouse.
387
388 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
389
390 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
391    image index and selected image index for each node to be set from a database field.
392
393 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
394    then database schema includes grants to all users. If not present then the
395    only user grants included are those to User PUBLIC.
396
397 45. TIBTreeView: performance improvement. When expanding include both expanded node
398    and child nodes in dataset.
399
400
401 IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
402
403 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
404   changes.
405
406 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
407   Bug could result in truncated multi-byte character set values.
408
409 3. Changes consequential on moving fbintf character set utility functions from
410   IFirebirdAPI to IAttachment.
411
412 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
413
414 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
415   results in autocomplete ignoring prefix text.
416
417 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
418   entering a new name into the text box.
419
420 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
421   Firebird rather than recomputing it.
422
423 8. Property Editor positioning tidy up: All IBX Property editors should now be
424   screen centre. Previously some were "poDesigned" which may be inappropriate
425   for multi monitor desktops.
426
427 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
428
429 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
430    a transaction and always reset the object.
431
432 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
433
434 13. TIBXScript: Allow for override of database filename in Create Database statements.
435
436 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
437    to a gbak format archive.
438
439 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
440
441 16. IBLocaldb: Drop database if error creating an empty database.
442
443 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
444    unless selected node not in current dataset.
445
446 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
447    to TIBCustomService, and IBlocalDB code tidy up.
448
449 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
450    behaviour due to uninitialised variable.
451
452 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
453    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
454
455 21. IBSQL: When Database changed ensure that all resources are freed.
456
457 22. IBCustomDataset: When database changed ensure that queries an unprepared.
458
459 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
460    * Line Wrap on SQL Token boundaries (on user command)
461    * auto-complete table names in drop down list of table names
462    * Double click on tablename or field name adds to SQL text
463
464 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
465
466 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
467    TVariantArray. Seems to avoid memory corruption in Windows (probably a
468    workaround for a problem in fpc 3.0.4 win64).
469
470 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
471
472 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
473
474 IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
475
476 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
477   include remote system name.
478
479 2. TIBExtract: No longer include comment header and COMMIT statement for empty
480   tables when data included in output.
481
482 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
483   and timing information to be written to stdout. This may be used to locate
484   performance bottlenecks.
485
486 4. SQLParser: only call "OnChanging" event handler when value is different.
487
488 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
489
490 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
491   that BindFields is called when the query is next activated. Avoids FieldName
492   not found error.
493
494 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
495   purpose and allows the programmer to define any action they want for Update, Insert
496   or Delete. This may be complex SQL (similar to a Trigger), application specific
497   filtering of updates, or use of statements such as Grant or Revoke instead of
498   normal DML. See User Manual for more information.
499
500 IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
501
502 1. TIBEvents: Fix uninitialised variable that could result in lost events.
503
504 2. TIBExtract: Added support for FB3 "USAGE" privilege.
505
506 3. TIBExtract: data formatted as Charset set "octets" is now output using
507   hexadecimal notation.
508
509 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
510   using a simple XML format.
511
512 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
513   grants to these objects.
514
515 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
516   dependency problems restoring complex databases.
517
518 7. TIBXScript: This component has been restructured to allow for the processing of
519   embedded XML in INSERT statements and to support interactive sources in addition
520   to non-interactive data sources such as files.
521
522 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
523
524 9. TIBXScript: ISQL compatiable Set statements are now supported:
525   SET SQL DIALECT
526   SET TERM
527   SET AUTODDL
528   SET BAIL
529   SET ECHO
530   SET COUNT
531   SET STATS
532   SET NAMES <character set>
533
534 10. IBVersion unit added to hold current IBX Version Number information.
535
536 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
537    and domain definitions.
538
539 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
540    fully supported.
541
542 13. TIBExtract: when a database dump includes data, the generator values are now also set.
543
544 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
545
546 IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
547
548 See also doc/IBX4LazarusGuide.pdf for important information on
549 upgrading to IBX2.
550
551 1. Size property of TIBStringField is now the width in characters of the field
552   and not the byte length. This applies only to multi-byte character sets such
553   as UTF8. The original approach aligned with TStringField. However, the TStringField
554   code is not recognised as a bug and hence this change to align the behaviour.
555   The TStringField change is expected in fpc 3.2.0.
556
557 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
558   true (default) then Size property value saved in the lfm is ignored. Size is
559   always set from the dynamic information read from the database. It is unclear
560   why anyone would want to override this and set Size to false.
561
562 3. ibxscript: should now handle correctly a Case..End statement within a procedure
563   block.
564
565 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
566   exist when an attempt is made to connect to it (run time only) then an attempt
567   is made to create the database.
568
569 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
570   has been successfully created as a result of a call to CreateDatabase or when
571   creating a database after it was found not to exist.
572
573 6.  DBControlGrid: a race condition could result in the wrong row image being
574    written to the cache. This has been avoided by a trip round the message
575    loop before rendering the row image.
576
577 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
578    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
579    known to risk corrupt rendering of row images when the control is first
580    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
581    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
582
583 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
584    a TDateEdit control located on an editor panel.
585
586 9.  TIBExtract: brought up-to-date plus many bug fixes.
587
588 10. DBControlGrid: Removed memory leak when updating rows.
589
590 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
591
592 IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
593
594 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
595   when target codepage is CP_NONE. This is a workaround for
596   http://bugs.freepascal.org/view.php?id=30622.
597
598 2. DBLog option removed from TIBStatisticalService - not supported by server
599   since Firebird 1.5.
600
601 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
602   similar.
603
604 4. IBCodePage: updated mapping between codepages and character id.
605
606 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
607   Firebird. Character sets with a char width of two are not UTF16.
608
609 6. Strings received from the database are now always transliterated into UTF8
610   regardless of the database character set or connection character set. This
611   is for compatibility with the LCL.
612
613 IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
614
615 1. IBBlob: Defer reading of blob until read method called. This avoids having to
616   read in an entire blob just to get the size of the blob. General performance
617   improvement when opening datasets containing blobs.
618
619 2. Clearing a  Blob now sets the corresponding field's modified flag.
620
621 3. IBLookupCombo: When not performing auto-complete, original query sort order
622   is now used.
623
624 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
625   determined.
626
627 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
628
629 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
630   lazarus 1.6.0
631
632 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
633   compilation error.
634
635 IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
636
637 1. No character set specified for connection: when a text blob is retrieved, the
638  character set is determined by looking up the native character set using then
639  Firebird API. Otherwise a text mode blob is assumed to have the same character
640  set as the connection.
641
642 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
643   for Login Dialog returing a change to the database path.
644
645 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
646   to be changed from that given in the TIBDatabase/TIBServer component and for the
647   entered value to be saved on a project specific basis (design time only).
648
649 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
650   column fieldname. If they are the same then it is acts as a look up for the KeyValue
651   Otherwise, it sets the column text to the selected ListField Value.
652
653 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
654   column width.
655
656 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
657   and a case insensitive search is requested.
658
659 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
660   or column ListSource.
661
662 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
663   unprepare) when closing and the text has not changed.
664
665 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
666   Less likely to cause a cursor re-use error on Windows.
667
668 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
669   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
670
671 11. TIBTreeView: Guard against nil destination on record changed
672
673 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
674    string type with the code page set to reflect the returned field encoding after
675    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
676    earlier versions.
677
678 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
679    will now result in transliteration to the code page specified for the Firebird driver
680    if the assigned string has a different code page. FPC 3.0.0 onwards only.
681
682 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
683    is ignored and the lc_ctype value, when the database is opened, is set to align with
684    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
685    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
686    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
687    the GETACP is used to determine the Windows code page.
688
689 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
690    name used as the lc_ctype when the database was opened. Only valid while the
691    Database is connected.
692
693 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
694    id that corresponds to the DefaultCharSetName.
695
696 IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
697
698 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
699   path is given and database attach fails due to access permission issues on the
700   temp directory or security database, then the attach is retried with "localhost:"
701   prefixing the databasename. This should avoid problems when the database has to
702   be accessed by a local (e.g. classic) server and libfbembed is used.
703
704 2. Windows: revised search order for Firebird DLL:
705     i.   The Firebird Embedded Server in the application Directory.
706     ii.  If the FIREBIRD environment variable is set then the directory this
707          points to is searched for the FB Client DLL and then then underlying
708          "bin" directory.
709     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
710          is used to locate the Firebird installation directory and the underlying
711          "bin" directory is searched for the FB Client DLL.
712     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
713          are searched for the FB Client DLL.
714     v.   The PATH Environment variable is used to search for the FB Client DLL.
715     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
716
717 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
718   See doc/readme.scriptengine and example applications.
719
720 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
721   simplify the use of the embedded firebird server on both Linux and Windows platforms.
722   See dpc/readme.localdatabase and example applications.
723
724 5. IBDynamicGrid: Reordering on column header click should now also work for
725   dynamic columns.
726
727 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
728   between incrementing/decrementing the lock count and signalling the event.
729
730 IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
731
732 1.3.2 was never formally released and only made available as beta copies.
733
734 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
735
736 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
737
738 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
739
740 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
741   i.e. when it is a calculated field
742
743 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
744   This problem was due to a race condition between recalculating row heights and
745   determining which row was selected by the mouse click. The row height calculation
746   is now deferred by an extra trip round the message loop allowing the row to
747   be always calculated on the current grid layout rather than risking it being
748   calculated on the grid layout after the expanded row has been shrunk.
749
750 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
751   Windows.
752
753 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
754   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
755   to be determined at runtime. See doc/readme.charactersets.html.
756
757 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
758   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
759
760 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
761   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
762   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
763
764   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
765   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
766   implies no truncation.
767
768 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
769
770 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
771   (avoids "Not in Edit Mode" error).
772
773 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
774
775 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
776    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
777
778 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
779
780 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
781
782 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
783
784 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
785
786 IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
787
788 1.   OnCloseUp Event Handler added to TDBLookupProperties
789
790 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
791     problem with row size when exception is called.
792
793 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
794
795 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
796     in a TCustomComboBox and ignores return key if in a TCustomMemo
797
798 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
799     keyed in i.e. when autocomplete not performed
800
801 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
802     console mode applications with all LCL required functions (builtin dialogs and
803     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
804     not included in your project, IBX should compile and link with a console mode program.
805     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
806     console mode application or the IDE will automatically assume that your
807     application is GUI based. Instead, you should include the ibexpressconsolemode package.
808
809     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
810     to use the built in dialogs and cursor management. IBDialogs is
811     included by default if "ibexpress" is in your project source's "uses" clause.
812     This should be the case for all projects created through the IDE. This is why
813     you do not want to add the ibexpress package to console mode applications. The
814     ibexpressconsolemode package has been created to allow console mode programs
815     to avoid adding LCL dependencies when using IBX, while still having the
816     unit search paths set up correctly.
817
818     Existing users should check to ensure that the "ibexpress" unit is included in
819     each project's source file (*.lpr).
820
821     You may find that in order for the IDE to recognise that ibexpressconsolemode
822     exists, you have to first open the package in the IDE and then close it. This
823     adds it to the most recently accessed packages list. To make it permanently
824     available, add the package name to lazarus' staticpackages.inc file.
825
826         Thanks to Julio Jiménez for suggesting support of console mode.
827
828 7.   SQL Parser can now accept quoted strings that include new lines
829
830 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
831     of text on start of edit. This is particularly useful when tabbing to a
832     column and then inserting text.
833
834 9.   New Examples provided for IB Services and ISQLMonitor.
835
836 10. Fix error when writing to blob streams that recorded only the last buffer
837    write in the blob stream. In most cases, this did not cause a problem as the
838    IB Blob Stream is written in a single write. However, with the TDBImage, write
839    of a graphic type prefix was lost which caused a problem when the image could
840        not be automatically recognised.
841
842 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
843    already open" errors due to random numbers used for the cursor name being identical.
844
845 12. IBTable: corrected error that could result in an "Index out of bounds" error
846    when opening the table and the Primary Key is the last or only column in the
847    table. Thanks to Rick Hoover for the fix.
848
849 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
850    of "UTF-8", and update list of available database character sets. Existing
851    users should check the current lc_ctype setting in their applications.
852
853 IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
854
855 1.  Firebird Services: avoid List Index error when opening a service with an
856    empty Params property.
857
858 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
859    Link now set up in Loaded method - avoids occasional failure to apply
860    SQL markup on initial open.
861
862 3.  "Employees" example performance improvements when scrolling.
863
864 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
865    TFrame. Force recaching of selected frame to avoid GTK race (results in a
866    random image cached).
867
868 5.  DBControlGrid: Should now react to changes in panel height at run time.
869
870 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
871    even when further rows exist.
872
873 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
874    always be derived from panel height and setting this property can cause confusion.
875    Note for existing projects: to avoid a missing property error at run time,
876    each form using the DBControlGrid must be opened, updated and saved in the IDE
877    in order to remove the property value from the lfm.
878
879
880 IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
881
882 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
883    call Prepare before setting parameter values.
884
885 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
886
887 3.  Code tidyup and more robust handling of dsql information result vector.
888
889 4.  Support for centralised handling of transaction status changes. TIBTransaction
890    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
891    and "AfterExecQuery". The first three are called after the same event is called
892    for an IBCustomDataSet descendent using the Transaction. The fourth is called
893    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
894    enable monitoring of transaction status changes for a given transaction to be
895    handled in a single place. For example, when a change to the dataset occurs
896    an indicator can be set that shows the user that in order to save changes,
897    the transaction should be committed.  Rather than doing this per dataset, this
898    can now be done per transaction.
899
900 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
901    the dataset is scrolled. However, any changes to the current row are, by default,
902    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
903    have a new property "DataSetCloseAction" that adds automatic posting of changes
904    on dataset close. If this property is set to dcDiscardChanges (default) then the
905    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
906    then IBX will attempt to post any unsaved changes before the dataset is closed
907    (and after the BeforeClose event handler is called). The exception is when the
908    dataset is being closed as a result of a transaction rollback. In this case,
909    no action is taken and any unsaved  changes are discarded. This avoids both
910    unnecessary overhead and the risk that a validation error may occur in the Post
911    raising an exception and thereby preventing a rollback.
912
913 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
914    In earlier versions, the Display Width was set to the maximum byte width rather than the character
915    width. Display Widths are now corrected by dividing by the max byte width per character.
916    For UTF8 character sets, the byte width is four and hence the Display Width will be
917    the byte width divided by 4. The byte width of each character set is determined
918    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
919    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
920
921 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
922
923 8.  IBLookupComboEditBox: List should now always be restored to full list when the
924    control loses focus. Default Key press default interval reduced to 200ms.
925
926 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
927    when dataset rows are less than visible rows.
928
929 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
930    does not exist or DataSet is empty. More responsive on dataset open. New event
931    OnRestorePosition. Column sort disabled if no header row.
932
933 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
934    while dataset state is dsInsert. Avoids posting errors.
935
936 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
937    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
938
939 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
940
941 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
942    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
943    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
944    always "posts" the current record regardless or whether or not it may be more appropriate
945    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
946    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
947    as the first action of the "Post" method and allows the handler to convert the Post
948    into a Cancel if that is the appropriate action on moving to a different row. This is
949    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
950    raised here, but it may still be more appropriate to validate a post and signal
951    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
952
953 15. On Unix derived systems, the Firebird library name can now be given as a colon
954    separated list. Each library name on the list is tried in turn, in left to right
955    order with the first found being used as the firebird library. By default, on Linux,
956    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
957    overidden by the FBLIB environment variable or the OnGetLibraryName function.
958
959    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
960    then it will still attempt to access the database via the Firebird Server and will
961    require a username and password. If only the pathname is given, then the username
962    and password should be omitted and the unix file permissions are used to grant
963    access.
964
965 IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
966
967 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
968    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
969    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
970    corresponds to a row of the linked DataSource. Any data aware control on the
971    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
972
973 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
974   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
975   takes place during database access. This may be useful when there are performance issues with
976   the change of cursor. Setting the property to false suppresses the change of cursor.
977
978 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
979   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
980   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
981   making all changes permanent immediately rather than when the transaction is explicitly
982   committed.
983
984 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
985   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
986
987 IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
988
989 Development version only.
990
991 IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
992
993 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
994   This is typically used during an "OnBeforeOpen" event handler to manipulate the
995   "Where" and "Having" clauses to implement user specified filters of arbitrary
996   complexity.
997
998 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
999   three new data aware controls dependent on IBX and which make use of the SQL Parser.
1000   These are:
1001
1002   - TIBLookupComboEditBox
1003   - TIBDynamicGrid
1004   - TIBTreeview
1005
1006   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1007   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1008   to revise the available list and restrict it to items that are prefixed by the
1009   typed text (either case sensitive or case insensitive). Autoinsert allows a
1010   newly typed entry to be added to the list dataset and included in the available
1011   list items.
1012
1013   TIBDynamicGrid is a TDBGrid descendent that provides for:
1014   - automatic resizing of selected columns to fill the available row length
1015   - automatic positioning and sizing of a "totals" control, typically at the
1016     column footer, on a per column basis.
1017   - DataSet resorting on header row click, sorting the dataset by the selected column.
1018     A second click on the same header cell reversed the sort order.
1019   - Support for a "Panel Editor". That is on clicking the indicator column, the row
1020     is automatically expanded and a panel superimposed on it. The panel can have any
1021     number of child controls, typically data aware controls with the same datasource
1022     as the grid allowing for editing of additional fields and more complex editors.
1023   - Reselection of the same row following resorting.
1024   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
1025     Its properties are specified on a per column basis and allows for one or more
1026     columns to have their values selected from a list provided by a dataset.
1027     Autocomplete and autoinsert are also available. The existing picklist editor
1028     is unaffected by the extension.
1029
1030   TIBTreeView is a data aware TCustomTreeView.
1031
1032 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
1033   zero scale will no longer return an error. An Int64 will be returned instead.
1034
1035 4. TIBTransaction now has events for Before and After Transaction End and a new function
1036   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
1037
1038 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
1039   repeated multiple times.
1040
1041 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
1042   check used to get in the way of using Stored Procedures, and "Update or Insert"
1043   statements.
1044
1045 7. Insert, Modify and Delete property Editors now support Query Generation from
1046   Stored Procedures.
1047
1048 8. Three new examples illustrate the use of the new IB Controls
1049
1050
1051 IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1052
1053 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1054   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
1055   Gabor Boros for reporting this problem and for testing the improvements).
1056
1057 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
1058   See readme.field+param.names in the doc folder.
1059
1060 3. IBX SQL Editors will now automatically add double quotes around column names when the database
1061   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
1062
1063 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
1064
1065 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
1066   actions.
1067
1068 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
1069   thanks to Yuriy Kopnin for pointing this out).
1070
1071 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
1072
1073 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
1074   for both fields and parameter setting.
1075
1076 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
1077   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
1078
1079 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
1080    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
1081
1082 11. TIBTable now has a property editor for "MasterFields"
1083
1084 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
1085    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
1086
1087 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
1088    of settings is unrecognised. Selecting this radio button has no effect on the settings.
1089  
1090
1091 IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
1092
1093 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
1094
1095 IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
1096
1097 1. In a TIBCustomDataset descendent, a generator now only sets the value when
1098   it is null. This allows for alternative user defined setting of the generator
1099
1100   Many thanks to Julio Jiménez for this fix
1101
1102 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
1103   and suggests that the user may have forgotten to install it.
1104
1105 IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
1106
1107 1. Conditional compilation used to limit registration of TIntegerField to
1108   Lazarus versions less than 1.1
1109
1110 2. When a database connection is created, character set is now by default set
1111   to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
1112   1250 to 1254.
1113
1114
1115 IBX Change Log  version     (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
1116
1117 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
1118
1119
1120 IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
1121
1122 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
1123   Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
1124
1125 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
1126   package is changed to do this (which it should do).
1127
1128 IBX Change Log  version (1.0-0)  Sat, 28 Apr 2012 16:43:00 +0100
1129
1130 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
1131
1132 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
1133
1134 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
1135
1136 4. Property editors should now correctly resize.
1137
1138 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
1139   (restored original functionality)
1140
1141 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
1142   library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.

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