1 Added zebra_set_approx_limit for a ZebraHandle (session). Results
2 will be approximate if hit count is greater than the limit specified.
4 Added support for term hit counts. This was not in place for earlier
5 1.4 versions, but is present in the 1.3 series. Bug #124.
7 Implemented the 'equivalent' directive for .chr-files.
9 Added zebra_get_bfs to get BFile handle for session.
11 Added 'melm' directive to absyn format to simplify config files
12 for MARC-style databases. See tab/marc21.abs for an example.
14 Added bath-compliant definition file marc21.abs for use with MARC databases.
16 Added autoconf utility idzebra.m4 which defines --with-idzebra .
18 Added mechanism to ignore leading articles when doing full-field indexing,
19 based on the character map files. See the manual for further discussion.
21 Fixed bug in record management. Releasing blocks could result in
24 Fixed bug in isam:b. A tree split could result in a lost item.
26 Remove isamd. It's not been in use for a long time and isamb is better
29 Change SYSNO to be zint. Change pointers in isamc and isamb to zint.
30 Change block number in bfile/cfile to zint. zint is a long integer
31 (64-bit). This change practially removes register limits for Zebra.
33 Implement int-list encoding for ISAMs.
35 Added facility to make attibutes in grs.regx and grs.tcl filter using the
36 data command with argument -attribute <name> . The content of data is
37 the value of the attribute. This command should be used inside a
38 begin element , end element section.
40 Update zebra.nsi to NSIS 2.
42 Added a new 'cut' directive to charmaps (.chr files) which specifies that
43 only characters after the cutting char should be indexed.
45 Update Perl internals so that it matches the current Zebra API.
46 The recordGroup structure is no longer available. A group of resources
47 can still be referenced by setting groupName=>.. in various methods.
49 Maximum number of records to be sorted in a result set can be
50 specified by setting "sortmax". Default is 1000.
52 Allow use of string use attributes for regular attribute sets. The
53 name matches the name given in the attribute set file. All strings
54 starting with / are considered X-Path as usual.
56 Fixed bug in grs.regx. filter . 'end element' could pop off top tag
57 element for XML tree. It may only pop off if -record is given.
59 Added grs.danbib filter - for Danish Bibliographic Centre.
61 Rename CHANGELOG to NEWS.
63 For text filter, return only header if elementSetName=H . elementSetName=R
64 returns contents only. Other elementSetName returns both header+content.
66 Added test for charmap and rusmarc.
68 Added feature charmaps (.chr) so that characters may be specified in
71 Fixed problem with encoding directive for charmap(.chr) files.
73 Allow Remote insert/delete/replace/update with record, recordIdNumber
74 (sysno) and/or recordIdOpaque(user supplied record Id). If both
75 IDs are omitted internal record ID match is assumed (recordId: - in
80 Fix bug. X-Path attribute expressions with spaces in them now works.
82 Fix base address for MARC output.
86 Fix bug with shadow and result set handling.
88 Implement MARCXML to ISO2709 conversion.
92 Add missing examples for Windows install.
94 Fix bug in regx filter to make it "greedy" again. This bug appeared
101 Fix XML error handling. Stop XML parse immediately if XML parse error
102 occur (i.e. produce one error only).
104 Zebra ignores "unsupported use attribute" for individual databases
105 when search multiple databases (unless all databases fail).
107 New filter grs.marcxml which works like grs.marc but produces MARCXML.
109 Added support for database deletion. It is possible to create/drop
110 a database from zebraidx utility. Note: only for isam:b.
112 Write zebrasrv.pid to lockdir.
114 Bug fix: result sets were not recovered correctly. Had to
115 add ODR handle for zebra_search_RPN in order to make it work.
117 Fixed a bug in regx filters that didn't do anchors (^) correctly.
119 Fixed a bug in searches with X-Path searches sometimes giving "extra"
122 Zebra server checks for zebrasrv.pid and refuses to start if it is already
123 locked by another (running) zebrasrv.
125 Fixed a bug with text being chunked in pieces for the grs.xml filter.
127 --- 1.3.11 2003/04/25
129 xelm code updates. xelm works regardless state of 'xpath enable/disable'
130 Avoid -L/usr/lib since that is already default library path.
132 Allow multiple updates within one transaction.
134 Fixed a bug with >2GB files (overflow in integer expression).
136 --- 1.3.10 2003/04/01
138 Fix linker error for Perl module.
140 Fix bug in and operation which in some cases could result in "extra"
141 hits. Bug was introduced in 1.3.5.
143 Fix bug in handling of schema conversion when producing numeric tags.
149 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
153 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
154 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
155 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
157 livrank: another experimental ranking algorithm. Source in livcode.c.
158 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
160 Contributed by Pete Mallinson, University of Liverpool.
162 Advanced MARC indexing. See doc/marc_indexing.xml
163 Oleg Kolobov <oleg at lib.tpu.ru>
165 Perl API updates and fixes.
166 Peter Popovics <pop at technomat.hu>
168 Fixed 'zebraidx delete'.
170 Implemented 'zebraidx clean'.
172 64-bit offsets for register files on WIN32 (no 2 GB limit).
174 Fixed a few memory leaks WRT sorting.
178 Fixed error handling : error code was not properly returned.
180 Support Truncation 104 (CCL).
184 Added missing source files for perl extension.
188 Implemented xelm directive.
190 Updated for newer version of YAZ (introduction of string schema).
192 Directory examples/zthes now part of distribution (was missing
193 in previous release).
195 New .abs directive, systag, that control where to put retrieval
196 information. The directive takes two arguments: system tag, element name.
197 System tag is one of : rank, sysno, size.
201 Perl Filter and Perl API. By Peter Popovics.
203 For zebra.cfg, if no profilePath is specified, directory
204 (prefix)/share/idzebra/tab
207 Zebra Examples in examples . Zebra tests in test.
209 Bug fix: sort index was not properly modified on
210 record updates/deletes.
212 Fix handling of character entities for sgml filter.
214 Move data1 to Zebra (used to be part of YAZ).
218 Fix character encoding of scan response terms.
220 Fix character decoding of scan request terms.
222 Fix ESpec handling (requires YAZ 1.9.1)
224 Fix searches for complete fields.
228 When name zebra is used in a filename or directory 'idzebra' is used
229 instead to avoid confusion with GNU zebra (routing software).
231 Zebra server stops with a fatal error if config file cannot be read.
233 New config setting, followLinks, that controls whether update of files
234 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
235 By default symbolic links are followed.
237 Fix MARC transfer . MARC fields had wrong data for multiple fields.
239 XML record reader moved from YAZ to Zebra, to make YAZ less
240 dependant on external libraries.
242 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
243 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
244 on systems that doesn't offer iconv.
246 XML record reader supports external system entities.
250 New .abs-directive "xpath" that takes one argument: "enable"
251 or "disable" to enable and disable XPath -indexing. If no "xpath"
252 direcive is found in .abs-file , XPath-indexing is disabled to ensure
253 backwards compatibility. For missing .abs-files XPath-indexing is
254 enabled so that such records are searchable.
256 Zebra warns about missing .abs-file only once (for each type).
258 Fixed a bug in file update where already-inserted files could
263 Zebra license changed to GNU GPL.
265 XPath-like queries used when RPN string attributes are used, eg.
266 @attr 1=/portal/title sometitle
267 @attr 1=/portal/title[@xml:lang=da] danishtitle
268 @attr 1=/portal/title/@xml:lang da
269 @attr 1=//title sometitle
271 Zebra uses UTF-8 internally:
272 1) New setting "encoding" for zebra.cfg that specifies encoding for
273 OCTET terms in queries and record encoding for most transfer syntaxes
274 (except those that use International Strings, such as GRS-1).
275 2) The encoding of International strings is UTF-8 by default. It
276 may be changed by character set negotiation. If character set
277 negotiation is in effect and if records are selected for conversion
278 these'll be converted to the selected character set - thus overriding
279 the encoding setting in zebra.cfg.
280 3) New directive "encoding" in .abs-files. This specifies the external
281 character encoding for files indexed by zebra. However, if records
282 themselves have an XML header that specifies and encoding that'll be used
285 XML filter (-t grs.xml).
287 Multiple registers. New setting in resource 'root' that holds base
288 directory for register(s). A group a databases may be put in separate
289 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
293 Fixes for Digital Unix
295 Implemented hits per term using USR:SearchResult-1.
297 New Zebra API. Locking system re-implemented.
299 --- 1.1.stable 2002/02/20
301 Rank weight can be controlled with attribute type 9. Default
302 value is 34. Recommended values between 1-36.
306 Updated for YAZ version 1.8.
308 Added support for termsets - a result set of terms matching
309 a given query. For @attr 8=<set> creates termset named <set>.
311 Added support for raw retrieval. Element Set Name R forces the
312 text filter which returns the record in its original form.
314 Added numerical sort - triggered by structure=numeric (4=109).
316 Remote record import using Z39.50 Extended Services and Segments.
318 Fixed bug where updating a database with user-defined attributes
319 could corrupt the register (bad storeKeys).
321 Multi-threaded version.
323 Fixed bug regarding proximity.
325 Documentation updates.
327 Fixed bug in record retrieval module that occured on 64-bit OSF
332 Fixed bug in makefile for WIN32.
334 Fixed bug in configure script - used bash-specific features.
338 Added support for multiple records in one file for filter grs.sgml.
340 Changed record index structure. New layout is incompatible with
341 previous releases. Added setting "recordcompression" to control
342 compression of records. Possible values are "none" (no
343 compression) and bzip2 (compression using libbz2).
345 Added XML transfer syntax support for retrieval of structured records.
346 Schema in CompSpec is recognised in retrieval of structured records.
348 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
349 that fails, the filter reads the file <filt>.flt (regx style filter).
351 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
352 Zebra's configure script automatically attempts to locate Tcl. For
353 manual Tcl configuration use option --with-tclconfig=<path> to specify
354 where Tcl's library files are located.
356 Implemented "compression" of Dictionary and ISAM system. Dictionary
359 Added "tagsysno" directive to zebra.cfg to control under which tag the
360 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
363 Added "tagrank" as above.
365 Changed file naming scheme for register files from <name>.mf.<no> to
368 Implemented "position"-flag for register type (as defined in
369 default.idx). When set to zero no position (or seqence number) is
370 saved in register for each word occurrence, thus saving some register
373 Implemented database mapping. Using mapdb one can specify a database
374 to be mapped to one or more physical databases. Usage:
375 mapdb <fromdb> <todb> ..
377 Added SOIF-filter. Thanks to Peter Valkenburg.
379 For the regx-filter "end element -record" may trigger a mark-of-record
380 if outer level is reached.
382 Tag sets may be typed in the reference to it. From the .abs-file the
383 "tagset" directive takes a third optional integer type for the tag set
384 referenced. From a .tag-file the "include" directive takes a third
385 optional type as well. The old "type" directive in the tag set itself
386 is still recognized but acts as the default type for the tag set.
388 Zebra supports the specification of arbitrary attributes sets, schemas
389 and tag sets, because of the change in YAZ' OID management system.
391 Fixed bug in Sort that caused it NOT to use character mapping as it
394 Zebra now uses GNU configure to generate Makefile(s).
396 Added un-optimised support for left and left/right truncation attributes.
398 Added support for relational operators on text when using RPN queries.
400 Added support for sort specifications in RPN queries. Type 7 specifies
401 'sort' where value 1=ascending, value 2=descending. The use attribute
402 specifies the field criteria as usual. The term specifies priority
403 where 0=first, 1=second, ...
405 Changed the way use attributes are specified in the recordId
408 Maximum number of databases in one Zebra register increased.
410 New setting, databasePath, which specifies that first directory during
411 update traversal is the database name (instead of a fixed one).
413 New setting, explainDatabase, which specifies that databases are
416 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
418 Implemented EXPLAIN database maintenance. Zebra automatically
419 generate - and update CategoryList, TargetInfo, DatabaseInfo,
420 AttributeSetInfo and AttributeDetails records at this stage. The
421 records may be transferred as GRS-1, SUTRS or Explain.
423 Fixed register spec so that colon isn't treated as size separator
424 unless followed by [0-9+-] in order to allow DOS drive specifications.
426 Fixed two bugs in ISAMC system.
428 Changed the way Zebra keeps its maintenance information about attribute
429 sets, available attributes, etc.. Records in "SGML" notation using an
430 EXPLAIN schema is now used when appropriate.
432 Bug fix: Index didn't handle update/insert/delete of the same record
433 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
434 first occurence of a record is considered.
436 Most searches now return correct number of hits.
438 New modular ranking system. Interested programmers are encouraged to
439 inspect rank1.c and improve the algorithm.
441 Bug fix: Lock files weren't removed as they should on NT.
443 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
444 specify a "sort register". Refer to the gils sample records which refer
445 to index type "s" which is specified as "sort" in the default.idx file.
446 Each sort criteria can either be Ascending or Descending and at most
447 three sort elements can be specified.
449 Bug fix: Character mapping didn't work for text files.
453 Simple ranked searches now return correct number of hits.
455 The test option (-s) only makes a read-lock on the index as well
456 as using read-only operations anywhere.
458 Moved towards generic character mapping. Configuration file default.idx
459 specifies character map files for register types w, p, u, etc.
461 Implemented "begin variant" for the sgml.regx - filter.
463 Fixed a few memory leaks.
465 Added support for C++, headers uses extern "C" for public definitions.
467 Bug fix: The show records facility (-s) only displayed information for
468 the first record in a file (and not for every record in the file).
470 Added option "-f <n>" to limit the logging of record operations. After
471 <n> records has been processed no logging is performed (unless errors
474 Bug fix: the compressed ISAM system didn't handle update operations
477 Added setting, "maxResultSetSize", to hold the number of records to
478 save in a result set.
480 Bug fix: Complete phrase did't work for search operations.
482 Bug fix: temporary result sets weren't deleted.
484 Reduced disk space for saved keys (storeKeys = 1).
486 Added optional, physical ANY (key replication)
488 Implemented proximity operator in search.
490 Bug fix: the path name buffers used by file match traversal routines
491 have been extended to support long file names.
493 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
494 configuration file. The resulting register without "storeKeys" is about
495 half the size, and the memory used by zebraidx during phase 2 (merge) is
496 reduced to a minimum.
498 Reworked the way Regexp-2 queries with error tolerance are handled and
499 specified. The documentation has been updated accordingly.
501 Bug fix: Zebrasrv didn't search correctly when queries contained masking
502 characters. This bug was introduced in 1.0a8.
504 Zebrasrv now tag records with the proper database name.
506 New settings, memMax and keyTmpDir.
508 Changed name of setting lockDir (previously called lockPath) and
509 setTmpDir (previously called tempSetPath).
511 Generalized and changed record type specifications. In short, there are:
513 grs.sgml structured, "SGML-like" syntax
514 grs.regx.<filter> structured, Regular expression filter
515 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
516 is the name of an abstract syntax file.
517 Bug fix: Result sets weren't sorted in operations involving boolean
518 operations with "ranked" operands.
522 Added national character-handling subsystem.
526 Small modifications to input filters and profiles.
528 Added support for SOIF syntax (with private OID).
532 Fixed buffer-size problem in indexing.
534 Added compression to temporary files for updating.
536 Added phrase registers.
538 Added dynamic mapping of search attribute to multiple termlists (ANY).
540 Scan support in multiple databases/registers.
542 Configuration settings are case-insensitive and single dash (-)
543 characters are ignored in comparisons.
545 The index processing ignores empty files - warning given.
547 New option to zebraidx (-V) displays version information.
551 Fixed problem in file-update system.
553 Fixed problem in shadow system; register was sometimes corrupted after
558 Fixed problems in the ISAM subsystem. Caused difficulties when updating
561 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
562 the rank and record number.
564 Fixed bug in the isam subsystem - caused a malfunction when accessing
565 words which occurred more than 10000 times.
567 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
570 Server can now run under inetd. Use option -i, and -w <directory> to
571 set working directory to desired location.
573 New zebraidx command: clean - removes temporary shadow files.
575 Fixed bug in ISAM system. Occurred rarely during register updates.
577 Logging during index merge phase is improved. The remaining running
580 Temporary files generated by zebraidx are removed after each run.
582 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
583 when doing scan operations in dictionaries with European characters.
587 A whole slew of updates, to make the first publicized release. Get the doc
592 Memory-problems in ISAM fixed. More blocktypes added to the default setup
593 to increase performance on larger databases.
595 Various minor changes in data management system.
599 A couple of portability-problems resolved.
601 Changed some malloc() to xmalloc().