1 Zebra reads (non-standard) attribute 10 for RPN queries. The value, when
2 specified, is returned as subqueryId in SearchResult-1. It un-specified
3 no subqueryId is part of SearchResult-1.
5 Added 'dbperms' setting to zebra.cfg. Names file with lines of
6 format username: db1+...dbn, listing databases that user has access to.
7 Database-specific access control only happens for searching, at present.
9 Added zebra_set_approx_limit for a ZebraHandle (session). Results
10 will be approximate if hit count is greater than the limit specified.
12 Added support for term hit counts. This was not in place for earlier
13 1.4 versions, but is present in the 1.3 series. Bug #124.
15 Implemented the 'equivalent' directive for .chr-files.
17 Added zebra_get_bfs to get BFile handle for session.
19 Added 'melm' directive to absyn format to simplify config files
20 for MARC-style databases. See tab/marc21.abs for an example.
22 Added bath-compliant definition file marc21.abs for use with MARC databases.
24 Added autoconf utility idzebra.m4 which defines --with-idzebra .
26 Added mechanism to ignore leading articles when doing full-field indexing,
27 based on the character map files. See the manual for further discussion.
29 Fixed bug in record management. Releasing blocks could result in
32 Fixed bug in isam:b. A tree split could result in a lost item.
34 Remove isamd. It's not been in use for a long time and isamb is better
37 Change SYSNO to be zint. Change pointers in isamc and isamb to zint.
38 Change block number in bfile/cfile to zint. zint is a long integer
39 (64-bit). This change practially removes register limits for Zebra.
41 Implement int-list encoding for ISAMs.
43 Added facility to make attibutes in grs.regx and grs.tcl filter using the
44 data command with argument -attribute <name> . The content of data is
45 the value of the attribute. This command should be used inside a
46 begin element , end element section.
48 Update zebra.nsi to NSIS 2.
50 Added a new 'cut' directive to charmaps (.chr files) which specifies that
51 only characters after the cutting char should be indexed.
53 Update Perl internals so that it matches the current Zebra API.
54 The recordGroup structure is no longer available. A group of resources
55 can still be referenced by setting groupName=>.. in various methods.
57 Maximum number of records to be sorted in a result set can be
58 specified by setting "sortmax". Default is 1000.
60 Allow use of string use attributes for regular attribute sets. The
61 name matches the name given in the attribute set file. All strings
62 starting with / are considered X-Path as usual.
64 Fixed bug in grs.regx. filter . 'end element' could pop off top tag
65 element for XML tree. It may only pop off if -record is given.
67 Added grs.danbib filter - for Danish Bibliographic Centre.
69 Rename CHANGELOG to NEWS.
71 For text filter, return only header if elementSetName=H . elementSetName=R
72 returns contents only. Other elementSetName returns both header+content.
74 Added test for charmap and rusmarc.
76 Added feature charmaps (.chr) so that characters may be specified in
79 Fixed problem with encoding directive for charmap(.chr) files.
81 Allow Remote insert/delete/replace/update with record, recordIdNumber
82 (sysno) and/or recordIdOpaque(user supplied record Id). If both
83 IDs are omitted internal record ID match is assumed (recordId: - in
88 Fix bug. X-Path attribute expressions with spaces in them now works.
90 Fix base address for MARC output.
94 Fix bug with shadow and result set handling.
96 Implement MARCXML to ISO2709 conversion.
100 Add missing examples for Windows install.
102 Fix bug in regx filter to make it "greedy" again. This bug appeared
107 --- 1.3.12 2003/09/08
109 Fix XML error handling. Stop XML parse immediately if XML parse error
110 occur (i.e. produce one error only).
112 Zebra ignores "unsupported use attribute" for individual databases
113 when search multiple databases (unless all databases fail).
115 New filter grs.marcxml which works like grs.marc but produces MARCXML.
117 Added support for database deletion. It is possible to create/drop
118 a database from zebraidx utility. Note: only for isam:b.
120 Write zebrasrv.pid to lockdir.
122 Bug fix: result sets were not recovered correctly. Had to
123 add ODR handle for zebra_search_RPN in order to make it work.
125 Fixed a bug in regx filters that didn't do anchors (^) correctly.
127 Fixed a bug in searches with X-Path searches sometimes giving "extra"
130 Zebra server checks for zebrasrv.pid and refuses to start if it is already
131 locked by another (running) zebrasrv.
133 Fixed a bug with text being chunked in pieces for the grs.xml filter.
135 --- 1.3.11 2003/04/25
137 xelm code updates. xelm works regardless state of 'xpath enable/disable'
138 Avoid -L/usr/lib since that is already default library path.
140 Allow multiple updates within one transaction.
142 Fixed a bug with >2GB files (overflow in integer expression).
144 --- 1.3.10 2003/04/01
146 Fix linker error for Perl module.
148 Fix bug in and operation which in some cases could result in "extra"
149 hits. Bug was introduced in 1.3.5.
151 Fix bug in handling of schema conversion when producing numeric tags.
157 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
161 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
162 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
163 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
165 livrank: another experimental ranking algorithm. Source in livcode.c.
166 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
168 Contributed by Pete Mallinson, University of Liverpool.
170 Advanced MARC indexing. See doc/marc_indexing.xml
171 Oleg Kolobov <oleg at lib.tpu.ru>
173 Perl API updates and fixes.
174 Peter Popovics <pop at technomat.hu>
176 Fixed 'zebraidx delete'.
178 Implemented 'zebraidx clean'.
180 64-bit offsets for register files on WIN32 (no 2 GB limit).
182 Fixed a few memory leaks WRT sorting.
186 Fixed error handling : error code was not properly returned.
188 Support Truncation 104 (CCL).
192 Added missing source files for perl extension.
196 Implemented xelm directive.
198 Updated for newer version of YAZ (introduction of string schema).
200 Directory examples/zthes now part of distribution (was missing
201 in previous release).
203 New .abs directive, systag, that control where to put retrieval
204 information. The directive takes two arguments: system tag, element name.
205 System tag is one of : rank, sysno, size.
209 Perl Filter and Perl API. By Peter Popovics.
211 For zebra.cfg, if no profilePath is specified, directory
212 (prefix)/share/idzebra/tab
215 Zebra Examples in examples . Zebra tests in test.
217 Bug fix: sort index was not properly modified on
218 record updates/deletes.
220 Fix handling of character entities for sgml filter.
222 Move data1 to Zebra (used to be part of YAZ).
226 Fix character encoding of scan response terms.
228 Fix character decoding of scan request terms.
230 Fix ESpec handling (requires YAZ 1.9.1)
232 Fix searches for complete fields.
236 When name zebra is used in a filename or directory 'idzebra' is used
237 instead to avoid confusion with GNU zebra (routing software).
239 Zebra server stops with a fatal error if config file cannot be read.
241 New config setting, followLinks, that controls whether update of files
242 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
243 By default symbolic links are followed.
245 Fix MARC transfer . MARC fields had wrong data for multiple fields.
247 XML record reader moved from YAZ to Zebra, to make YAZ less
248 dependant on external libraries.
250 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
251 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
252 on systems that doesn't offer iconv.
254 XML record reader supports external system entities.
258 New .abs-directive "xpath" that takes one argument: "enable"
259 or "disable" to enable and disable XPath -indexing. If no "xpath"
260 direcive is found in .abs-file , XPath-indexing is disabled to ensure
261 backwards compatibility. For missing .abs-files XPath-indexing is
262 enabled so that such records are searchable.
264 Zebra warns about missing .abs-file only once (for each type).
266 Fixed a bug in file update where already-inserted files could
271 Zebra license changed to GNU GPL.
273 XPath-like queries used when RPN string attributes are used, eg.
274 @attr 1=/portal/title sometitle
275 @attr 1=/portal/title[@xml:lang=da] danishtitle
276 @attr 1=/portal/title/@xml:lang da
277 @attr 1=//title sometitle
279 Zebra uses UTF-8 internally:
280 1) New setting "encoding" for zebra.cfg that specifies encoding for
281 OCTET terms in queries and record encoding for most transfer syntaxes
282 (except those that use International Strings, such as GRS-1).
283 2) The encoding of International strings is UTF-8 by default. It
284 may be changed by character set negotiation. If character set
285 negotiation is in effect and if records are selected for conversion
286 these'll be converted to the selected character set - thus overriding
287 the encoding setting in zebra.cfg.
288 3) New directive "encoding" in .abs-files. This specifies the external
289 character encoding for files indexed by zebra. However, if records
290 themselves have an XML header that specifies and encoding that'll be used
293 XML filter (-t grs.xml).
295 Multiple registers. New setting in resource 'root' that holds base
296 directory for register(s). A group a databases may be put in separate
297 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
301 Fixes for Digital Unix
303 Implemented hits per term using USR:SearchResult-1.
305 New Zebra API. Locking system re-implemented.
307 --- 1.1.stable 2002/02/20
309 Rank weight can be controlled with attribute type 9. Default
310 value is 34. Recommended values between 1-36.
314 Updated for YAZ version 1.8.
316 Added support for termsets - a result set of terms matching
317 a given query. For @attr 8=<set> creates termset named <set>.
319 Added support for raw retrieval. Element Set Name R forces the
320 text filter which returns the record in its original form.
322 Added numerical sort - triggered by structure=numeric (4=109).
324 Remote record import using Z39.50 Extended Services and Segments.
326 Fixed bug where updating a database with user-defined attributes
327 could corrupt the register (bad storeKeys).
329 Multi-threaded version.
331 Fixed bug regarding proximity.
333 Documentation updates.
335 Fixed bug in record retrieval module that occured on 64-bit OSF
340 Fixed bug in makefile for WIN32.
342 Fixed bug in configure script - used bash-specific features.
346 Added support for multiple records in one file for filter grs.sgml.
348 Changed record index structure. New layout is incompatible with
349 previous releases. Added setting "recordcompression" to control
350 compression of records. Possible values are "none" (no
351 compression) and bzip2 (compression using libbz2).
353 Added XML transfer syntax support for retrieval of structured records.
354 Schema in CompSpec is recognised in retrieval of structured records.
356 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
357 that fails, the filter reads the file <filt>.flt (regx style filter).
359 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
360 Zebra's configure script automatically attempts to locate Tcl. For
361 manual Tcl configuration use option --with-tclconfig=<path> to specify
362 where Tcl's library files are located.
364 Implemented "compression" of Dictionary and ISAM system. Dictionary
367 Added "tagsysno" directive to zebra.cfg to control under which tag the
368 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
371 Added "tagrank" as above.
373 Changed file naming scheme for register files from <name>.mf.<no> to
376 Implemented "position"-flag for register type (as defined in
377 default.idx). When set to zero no position (or seqence number) is
378 saved in register for each word occurrence, thus saving some register
381 Implemented database mapping. Using mapdb one can specify a database
382 to be mapped to one or more physical databases. Usage:
383 mapdb <fromdb> <todb> ..
385 Added SOIF-filter. Thanks to Peter Valkenburg.
387 For the regx-filter "end element -record" may trigger a mark-of-record
388 if outer level is reached.
390 Tag sets may be typed in the reference to it. From the .abs-file the
391 "tagset" directive takes a third optional integer type for the tag set
392 referenced. From a .tag-file the "include" directive takes a third
393 optional type as well. The old "type" directive in the tag set itself
394 is still recognized but acts as the default type for the tag set.
396 Zebra supports the specification of arbitrary attributes sets, schemas
397 and tag sets, because of the change in YAZ' OID management system.
399 Fixed bug in Sort that caused it NOT to use character mapping as it
402 Zebra now uses GNU configure to generate Makefile(s).
404 Added un-optimised support for left and left/right truncation attributes.
406 Added support for relational operators on text when using RPN queries.
408 Added support for sort specifications in RPN queries. Type 7 specifies
409 'sort' where value 1=ascending, value 2=descending. The use attribute
410 specifies the field criteria as usual. The term specifies priority
411 where 0=first, 1=second, ...
413 Changed the way use attributes are specified in the recordId
416 Maximum number of databases in one Zebra register increased.
418 New setting, databasePath, which specifies that first directory during
419 update traversal is the database name (instead of a fixed one).
421 New setting, explainDatabase, which specifies that databases are
424 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
426 Implemented EXPLAIN database maintenance. Zebra automatically
427 generate - and update CategoryList, TargetInfo, DatabaseInfo,
428 AttributeSetInfo and AttributeDetails records at this stage. The
429 records may be transferred as GRS-1, SUTRS or Explain.
431 Fixed register spec so that colon isn't treated as size separator
432 unless followed by [0-9+-] in order to allow DOS drive specifications.
434 Fixed two bugs in ISAMC system.
436 Changed the way Zebra keeps its maintenance information about attribute
437 sets, available attributes, etc.. Records in "SGML" notation using an
438 EXPLAIN schema is now used when appropriate.
440 Bug fix: Index didn't handle update/insert/delete of the same record
441 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
442 first occurence of a record is considered.
444 Most searches now return correct number of hits.
446 New modular ranking system. Interested programmers are encouraged to
447 inspect rank1.c and improve the algorithm.
449 Bug fix: Lock files weren't removed as they should on NT.
451 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
452 specify a "sort register". Refer to the gils sample records which refer
453 to index type "s" which is specified as "sort" in the default.idx file.
454 Each sort criteria can either be Ascending or Descending and at most
455 three sort elements can be specified.
457 Bug fix: Character mapping didn't work for text files.
461 Simple ranked searches now return correct number of hits.
463 The test option (-s) only makes a read-lock on the index as well
464 as using read-only operations anywhere.
466 Moved towards generic character mapping. Configuration file default.idx
467 specifies character map files for register types w, p, u, etc.
469 Implemented "begin variant" for the sgml.regx - filter.
471 Fixed a few memory leaks.
473 Added support for C++, headers uses extern "C" for public definitions.
475 Bug fix: The show records facility (-s) only displayed information for
476 the first record in a file (and not for every record in the file).
478 Added option "-f <n>" to limit the logging of record operations. After
479 <n> records has been processed no logging is performed (unless errors
482 Bug fix: the compressed ISAM system didn't handle update operations
485 Added setting, "maxResultSetSize", to hold the number of records to
486 save in a result set.
488 Bug fix: Complete phrase did't work for search operations.
490 Bug fix: temporary result sets weren't deleted.
492 Reduced disk space for saved keys (storeKeys = 1).
494 Added optional, physical ANY (key replication)
496 Implemented proximity operator in search.
498 Bug fix: the path name buffers used by file match traversal routines
499 have been extended to support long file names.
501 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
502 configuration file. The resulting register without "storeKeys" is about
503 half the size, and the memory used by zebraidx during phase 2 (merge) is
504 reduced to a minimum.
506 Reworked the way Regexp-2 queries with error tolerance are handled and
507 specified. The documentation has been updated accordingly.
509 Bug fix: Zebrasrv didn't search correctly when queries contained masking
510 characters. This bug was introduced in 1.0a8.
512 Zebrasrv now tag records with the proper database name.
514 New settings, memMax and keyTmpDir.
516 Changed name of setting lockDir (previously called lockPath) and
517 setTmpDir (previously called tempSetPath).
519 Generalized and changed record type specifications. In short, there are:
521 grs.sgml structured, "SGML-like" syntax
522 grs.regx.<filter> structured, Regular expression filter
523 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
524 is the name of an abstract syntax file.
525 Bug fix: Result sets weren't sorted in operations involving boolean
526 operations with "ranked" operands.
530 Added national character-handling subsystem.
534 Small modifications to input filters and profiles.
536 Added support for SOIF syntax (with private OID).
540 Fixed buffer-size problem in indexing.
542 Added compression to temporary files for updating.
544 Added phrase registers.
546 Added dynamic mapping of search attribute to multiple termlists (ANY).
548 Scan support in multiple databases/registers.
550 Configuration settings are case-insensitive and single dash (-)
551 characters are ignored in comparisons.
553 The index processing ignores empty files - warning given.
555 New option to zebraidx (-V) displays version information.
559 Fixed problem in file-update system.
561 Fixed problem in shadow system; register was sometimes corrupted after
566 Fixed problems in the ISAM subsystem. Caused difficulties when updating
569 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
570 the rank and record number.
572 Fixed bug in the isam subsystem - caused a malfunction when accessing
573 words which occurred more than 10000 times.
575 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
578 Server can now run under inetd. Use option -i, and -w <directory> to
579 set working directory to desired location.
581 New zebraidx command: clean - removes temporary shadow files.
583 Fixed bug in ISAM system. Occurred rarely during register updates.
585 Logging during index merge phase is improved. The remaining running
588 Temporary files generated by zebraidx are removed after each run.
590 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
591 when doing scan operations in dictionaries with European characters.
595 A whole slew of updates, to make the first publicized release. Get the doc
600 Memory-problems in ISAM fixed. More blocktypes added to the default setup
601 to increase performance on larger databases.
603 Various minor changes in data management system.
607 A couple of portability-problems resolved.
609 Changed some malloc() to xmalloc().