TDbf 7.0.1 released

Nashev — Mon, 30 Nov 2015 14:27:09 -0000

We are glad to finally announce the release of version 7.0.1, thanks to the hard work of paulenandrew, ploeger and others. It includes many new features, improvements and bug fixes

There are about 150 lines in the history.txt describing changes, but we came up with this summary for the release notes to go in the announcements.

See history.txt for full details

New features
- add support for file sizes over 2 GB
- add SetKey, GotoKey, GotoNearest and GotoCommon functions to offer more search options
- add CompareKeys function to compare index keys
- add BatchMove method, implement bmAppend and bmCopy
- add OnIndexInvalid event
- add DeleteMdxFile method
- add OnProgress event
- add functions to parser: Abs, Asc, Ceil, Ceiling, Chr, CDOW, Date, Day, Empty, IIF, Len, LTrim, Month, Proper, RecNo, Right, Round, RTrim, SoundEx, Trim, Val, Year
- make third parameter optional in SubStr()
- add support for new uses of + and - operators
- add support for null values to the parser
- include deleted records in distinct index for compatibility
Improvements
- improve robustness of indexes
- improve robustness of error handling opening a table
- improve support for sharing and locking
- improve support for index key types and expressions
- improve support for memo
- improve numeric field value translation
- improve performance when table is exclusive or write locked
- improve performance of both random and sequential access using a dynamic read-ahead buffer
- improve performance of building an index using bulk-loading
Bug fixes
- general bug fixes
- fix compatibility with older Delphi versions and Free Pascal
- fix index bugs
- fix parser bugs, including heap corruption
- fix bugs copying data
- add missing error message translations

TDbf 6.9.1 released

Nashev — Sun, 04 Mar 2007 22:04:33 -0000

------------------------
V6.9.1

- fix last memo field getting truncated (patch by dhdorrough)
- add dbf_collate unit to the packages
- fix index result too long bug
- add support for big endian
- fix non-raw string field filter
- fix index inserts/updates to be reverted on key violations
- allow lookups to ignore active filter

TDbf 6.9.0 released

Nashev — Sun, 26 Nov 2006 22:07:57 -0000

This is a 7.0 beta release.

Note that indexes are not backward compatible!

Full log of changes:
- BDE compatible index collation: MDX/NDXes have to be rebuilt!
(thx sstewart for generating collation tables)
- fix use long char fields check icw foxpro (thx rpoverdijk)
- fix TDbf.GetRecNo AV when no file open
- remove UseFloatFields, delphi 3 will use float fields, others not
- fix size/precision truncation when opening foxpro B-type fields (thx nring)
- foxbase memo is 10 character index, sizes 4 and 10 are valid (thx majky)
- add int64 to string conversion in expression parser function STR
- fix nativeformat for tdbf.getfielddata(A,B) users
- allow later defined expression variables to have same name as
already defined function
- third parameter in substr function is optional now
- expression parser distinguishes between function() and variable, =no brackets
- updated bcb 4 packages files from troy dalton
- fix write blob B-type field for non-foxpro (thx leexgone)
- fix win64 compatibility

TDbf 6.4.8 released

Nashev — Sat, 29 Apr 2006 14:00:05 -0000

------------------------
V6.4.8

- remove duplicate names, may cause ambiguity
- allow duplicate names in function list for expressions
- remember exprword reference for every field variable so we can remove it
- prevent possible buffer overrun when parsing expression (thx leexgone)
- fix some memory references in the parser
- add ability for locate/lookup to use alternate index than current one
- fix tdbf.copyfrom fieldname copy and fieldno index for size/precision
- make TDbf.CheckMasterRange public so master/detail can be synced manually
when for example .DisableControls is active
- allow calc/lookup fields to work in filters
- fix loosing blobs when packing table (rep by cllerici)
- support variants for freepascal
- fix (filter) parser string partial matching for "A*" strings
- make distinct index creation more robust

TDbf 6.4.7 released

Nashev — Sat, 04 Feb 2006 10:23:03 -0000

------------------------
V6.4.7

- fixed: 64bit compatibility
- fixed: Field.FieldNo is relative to number of FieldDefs, may be larger
- added: function Max for Delphi 3, needed by dbf_avl unit
- added: BCB3 package files (thx to pzelotti)
- fixed: add special case for copying from source TDbf in CopyFrom to retain
more precise field types
- fixed: TDbf.CopyFrom to keep Fields and FieldDefs seperate
- fixed: TDbfFieldDefs.Add to ignore size when it is zero
- added: TDbf.Lookup and as such, lookup fields, should work now
- added: defines for delphi 2006 and 2007
- fixed: some range checking errors when swapping data
- added: packages for delphi 2005 and 2006, c++ 2006 (from stan and others)
- fixed: modifying records with active range
- added: packages for kylix 3, fix casing (from jvargas)

TDbf 6.4.6 released

Nashev — Sat, 19 Nov 2005 12:16:58 -0000

------------------------
V6.4.6

- fixed: FPC 2.0.1 implements "backward-compatible" fielddata
for datetime fields in particular (from alexandrov)
- fixed: only allow >255 field length for creating foxpro files; prevents
range check error (rep by miguel)
- fixed: memo read: check number of bytes read, clear rest for safety
- added: support for foxpro double, fieldtype 'B'
- fixed: foxpro memo pageno is binary 4 byte integer, not ascii
- added: default values are buffered, better/faster record insert
- added: support for long character fields compiletime definable
(USE_LONG_CHAR_FIELDS)
- fixed: added boolean field support in expressions (note: breaks existing)
- fixed: compilation with USE_CACHE directive
- fixed: add my own SwapWord function, because Swap seems buggy in fpc
- fixed: VCL fieldtype ftDateTime was not translated to any native type
for non dBase VII and non FoxPro (hint by paul van helden)

TDbf 6.4.4 released

Nashev — Wed, 13 Jul 2005 17:28:29 -0000

------------------------
V6.4.4

- fixed: delphi 3 does not have math unit
- fixed: exception in opening causes double free (thx arioch)
- fixed: copy precision for float fields
- fixed: force create index file, if index does not exist yet
- fixed: memory leak in TPagedFile.FBufferPtr
- fixed: TDbf.GetFileNames crash, more robust (rep by arioch)
- added: character conversion hungarian (from attila)
- fixed: index creation for tablelevel 7, mdx type 3
- fixed: remember cursor position when changing showdeleted setting
- fixed: findrecord to sync cursor position; endless loop or forgot records
- chang: added initializations to 0 to suppress delphi warnings

==============================

Also, a new version of the demo app was released with some fixes:

------------------------
V1.3.6

- fixed: 'pack a table' packtable tries to get exclusive access
- fixed: 'pack a table' show deleted records remembers cursor position

TDbf 6.4.3 released

Nashev — Sun, 13 Mar 2005 19:51:25 -0000

------------------------
V6.4.3

- fixed: delphi 3 compilation; dynamic array of restructure info (rep by kjteng)
- fixed: datetime index creation using delphi 4 (rep by agam)
- fixed: storage of negative numbers in integer fields (rep by agam)
- fixed: index corruption when opening, with emptytable (rep by arioch)
- fixed: index corruption on regenerateindexes (rep by piotr)

TDbf 6.4.2 released

Nashev — Fri, 31 Dec 2004 22:13:04 -0000

------------------------
V6.4.2

- fixed: overflow in storing float field data (large negative number) (thx madruga)
- fixed: restructure/pack create MDX database desktop compatible;
write db filename in mdx header (rep by rusmonk)
- fixed: freepascal objfpc mode compatibility fixes (still needs some @-ies)
- fixed: upon TDbf.Delete, use internal editing/posting such that BeforeEdit
and other events are not fired; also fixes cursor position bug upon
deletion (rep by bura)
- fixed: only use float fields (UseFloatFields) if int64 not supported
- fixed: deleted records undeleted when using RestructureTable with
Pack=false (rep by scenes)
- fixed: made (hopefully) all references to units lowercase, for kylix

TDbf 6.4.1 released

Nashev — Mon, 29 Nov 2004 17:23:00 -0000

------------------------
V6.4.1

- fixed: restructure numeric fields correctly, try to preserve data
- fixed: read and write foxpro currency fieldtype (thx karelrys)
- fixed: when using TDbf.Insert to add a record, current record indicator does
not move to newly added record (rep by rpoverdijk)
- fixed: req. of numeric field size >= 2, it can be 1 too! (rep by rpoverdijk)
- fixed: forgot cursor position when disabling filter (rep by bobmitch/luchop)
- fixed: initialize binary field types '0' (nullflags) and 'Y' (currency)
properly (thx to karelrys)
- added: _nullflags field operation support (thx karelrys)
- fixed: when editing a record, then moving to another record, memo is not
properly cleared if memo is null (rep by versus)
- fixed: writing to a memo that also has a connected dbcontrol does not work;
quite some semantical changes, may have introduced new bugs (rep by mafro)

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