2 Maximum number of records to be sorted in a result set can be
3 specified by setting "sortmax". Default is 1000.
5 Allow use of string use attributes for regular attribute sets. The
6 name matches the name given in the attribute set file. All strings
7 starting with / are considered X-Path as usual.
9 Fixed bug in grs.regx. filter . 'end element' could pop off top tag
10 element for XML tree. It may only pop off if -record is given.
12 Added grs.danbib filter - for Danish Bibliographic Centre.
14 Rename CHANGELOG to NEWS.
18 For text filter, return only header if elementSetName=H . elementSetName=R
19 returns contents only. Other elementSetName returns both header+content.
21 Added test for charmap and rusmarc.
23 Added feature charmaps (.chr) so that characters may be specified in
26 Fixed problem with encoding directive for charmap(.chr) files.
28 Allow Remote insert/delete/replace/update with record, recordIdNumber
29 (sysno) and/or recordIdOpaque(user supplied record Id). If both
30 IDs are omitted internal record ID match is assumed (recordId: - in
35 Fix bug. X-Path attribute expressions with spaces in them now works.
37 Fix base address for MARC output.
41 Fix bug with shadow and result set handling.
43 Implement MARCXML to ISO2709 conversion.
47 Add missing examples for Windows install.
49 Fix bug in regx filter to make it "greedy" again. This bug appeared
56 Fix XML error handling. Stop XML parse immediately if XML parse error
57 occur (i.e. produce one error only).
59 Zebra ignores "unsupported use attribute" for individual databases
60 when search multiple databases (unless all databases fail).
62 New filter grs.marcxml which works like grs.marc but produces MARCXML.
64 Added support for database deletion. It is possible to create/drop
65 a database from zebraidx utility. Note: only for isam:b.
67 Write zebrasrv.pid to lockdir.
69 Bug fix: result sets were not recovered correctly. Had to
70 add ODR handle for zebra_search_RPN in order to make it work.
72 Fixed a bug in regx filters that didn't do anchors (^) correctly.
74 Fixed a bug in searches with X-Path searches sometimes giving "extra"
77 Zebra server checks for zebrasrv.pid and refuses to start if it is already
78 locked by another (running) zebrasrv.
80 Fixed a bug with text being chunked in pieces for the grs.xml filter.
84 xelm code updates. xelm works regardless state of 'xpath enable/disable'
85 Avoid -L/usr/lib since that is already default library path.
87 Allow multiple updates within one transaction.
89 Fixed a bug with >2GB files (overflow in integer expression).
93 Fix linker error for Perl module.
95 Fix bug in and operation which in some cases could result in "extra"
96 hits. Bug was introduced in 1.3.5.
98 Fix bug in handling of schema conversion when producing numeric tags.
104 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
108 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
109 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
110 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
112 livrank: another experimental ranking algorithm. Source in livcode.c.
113 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
115 Contributed by Pete Mallinson, University of Liverpool.
117 Advanced MARC indexing. See doc/marc_indexing.xml
118 Oleg Kolobov <oleg at lib.tpu.ru>
120 Perl API updates and fixes.
121 Peter Popovics <pop at technomat.hu>
123 Fixed 'zebraidx delete'.
125 Implemented 'zebraidx clean'.
127 64-bit offsets for register files on WIN32 (no 2 GB limit).
129 Fixed a few memory leaks WRT sorting.
133 Fixed error handling : error code was not properly returned.
135 Support Truncation 104 (CCL).
139 Added missing source files for perl extension.
143 Implemented xelm directive.
145 Updated for newer version of YAZ (introduction of string schema).
147 Directory examples/zthes now part of distribution (was missing
148 in previous release).
150 New .abs directive, systag, that control where to put retrieval
151 information. The directive takes two arguments: system tag, element name.
152 System tag is one of : rank, sysno, size.
156 Perl Filter and Perl API. By Peter Popovics.
158 For zebra.cfg, if no profilePath is specified, directory
159 (prefix)/share/idzebra/tab
162 Zebra Examples in examples . Zebra tests in test.
164 Bug fix: sort index was not properly modified on
165 record updates/deletes.
167 Fix handling of character entities for sgml filter.
169 Move data1 to Zebra (used to be part of YAZ).
173 Fix character encoding of scan response terms.
175 Fix character decoding of scan request terms.
177 Fix ESpec handling (requires YAZ 1.9.1)
179 Fix searches for complete fields.
183 When name zebra is used in a filename or directory 'idzebra' is used
184 instead to avoid confusion with GNU zebra (routing software).
186 Zebra server stops with a fatal error if config file cannot be read.
188 New config setting, followLinks, that controls whether update of files
189 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
190 By default symbolic links are followed.
192 Fix MARC transfer . MARC fields had wrong data for multiple fields.
194 XML record reader moved from YAZ to Zebra, to make YAZ less
195 dependant on external libraries.
197 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
198 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
199 on systems that doesn't offer iconv.
201 XML record reader supports external system entities.
205 New .abs-directive "xpath" that takes one argument: "enable"
206 or "disable" to enable and disable XPath -indexing. If no "xpath"
207 direcive is found in .abs-file , XPath-indexing is disabled to ensure
208 backwards compatibility. For missing .abs-files XPath-indexing is
209 enabled so that such records are searchable.
211 Zebra warns about missing .abs-file only once (for each type).
213 Fixed a bug in file update where already-inserted files could
218 Zebra license changed to GNU GPL.
220 XPath-like queries used when RPN string attributes are used, eg.
221 @attr 1=/portal/title sometitle
222 @attr 1=/portal/title[@xml:lang=da] danishtitle
223 @attr 1=/portal/title/@xml:lang da
224 @attr 1=//title sometitle
226 Zebra uses UTF-8 internally:
227 1) New setting "encoding" for zebra.cfg that specifies encoding for
228 OCTET terms in queries and record encoding for most transfer syntaxes
229 (except those that use International Strings, such as GRS-1).
230 2) The encoding of International strings is UTF-8 by default. It
231 may be changed by character set negotiation. If character set
232 negotiation is in effect and if records are selected for conversion
233 these'll be converted to the selected character set - thus overriding
234 the encoding setting in zebra.cfg.
235 3) New directive "encoding" in .abs-files. This specifies the external
236 character encoding for files indexed by zebra. However, if records
237 themselves have an XML header that specifies and encoding that'll be used
240 XML filter (-t grs.xml).
242 Multiple registers. New setting in resource 'root' that holds base
243 directory for register(s). A group a databases may be put in separate
244 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
248 Fixes for Digital Unix
250 Implemented hits per term using USR:SearchResult-1.
252 New Zebra API. Locking system re-implemented.
254 --- 1.1.stable 2002/02/20
256 Rank weight can be controlled with attribute type 9. Default
257 value is 34. Recommended values between 1-36.
261 Updated for YAZ version 1.8.
263 Added support for termsets - a result set of terms matching
264 a given query. For @attr 8=<set> creates termset named <set>.
266 Added support for raw retrieval. Element Set Name R forces the
267 text filter which returns the record in its original form.
269 Added numerical sort - triggered by structure=numeric (4=109).
271 Remote record import using Z39.50 Extended Services and Segments.
273 Fixed bug where updating a database with user-defined attributes
274 could corrupt the register (bad storeKeys).
276 Multi-threaded version.
278 Fixed bug regarding proximity.
280 Documentation updates.
282 Fixed bug in record retrieval module that occured on 64-bit OSF
287 Fixed bug in makefile for WIN32.
289 Fixed bug in configure script - used bash-specific features.
293 Added support for multiple records in one file for filter grs.sgml.
295 Changed record index structure. New layout is incompatible with
296 previous releases. Added setting "recordcompression" to control
297 compression of records. Possible values are "none" (no
298 compression) and bzip2 (compression using libbz2).
300 Added XML transfer syntax support for retrieval of structured records.
301 Schema in CompSpec is recognised in retrieval of structured records.
303 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
304 that fails, the filter reads the file <filt>.flt (regx style filter).
306 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
307 Zebra's configure script automatically attempts to locate Tcl. For
308 manual Tcl configuration use option --with-tclconfig=<path> to specify
309 where Tcl's library files are located.
311 Implemented "compression" of Dictionary and ISAM system. Dictionary
314 Added "tagsysno" directive to zebra.cfg to control under which tag the
315 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
318 Added "tagrank" as above.
320 Changed file naming scheme for register files from <name>.mf.<no> to
323 Implemented "position"-flag for register type (as defined in
324 default.idx). When set to zero no position (or seqence number) is
325 saved in register for each word occurrence, thus saving some register
328 Implemented database mapping. Using mapdb one can specify a database
329 to be mapped to one or more physical databases. Usage:
330 mapdb <fromdb> <todb> ..
332 Added SOIF-filter. Thanks to Peter Valkenburg.
334 For the regx-filter "end element -record" may trigger a mark-of-record
335 if outer level is reached.
337 Tag sets may be typed in the reference to it. From the .abs-file the
338 "tagset" directive takes a third optional integer type for the tag set
339 referenced. From a .tag-file the "include" directive takes a third
340 optional type as well. The old "type" directive in the tag set itself
341 is still recognized but acts as the default type for the tag set.
343 Zebra supports the specification of arbitrary attributes sets, schemas
344 and tag sets, because of the change in YAZ' OID management system.
346 Fixed bug in Sort that caused it NOT to use character mapping as it
349 Zebra now uses GNU configure to generate Makefile(s).
351 Added un-optimised support for left and left/right truncation attributes.
353 Added support for relational operators on text when using RPN queries.
355 Added support for sort specifications in RPN queries. Type 7 specifies
356 'sort' where value 1=ascending, value 2=descending. The use attribute
357 specifies the field criteria as usual. The term specifies priority
358 where 0=first, 1=second, ...
360 Changed the way use attributes are specified in the recordId
363 Maximum number of databases in one Zebra register increased.
365 New setting, databasePath, which specifies that first directory during
366 update traversal is the database name (instead of a fixed one).
368 New setting, explainDatabase, which specifies that databases are
371 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
373 Implemented EXPLAIN database maintenance. Zebra automatically
374 generate - and update CategoryList, TargetInfo, DatabaseInfo,
375 AttributeSetInfo and AttributeDetails records at this stage. The
376 records may be transferred as GRS-1, SUTRS or Explain.
378 Fixed register spec so that colon isn't treated as size separator
379 unless followed by [0-9+-] in order to allow DOS drive specifications.
381 Fixed two bugs in ISAMC system.
383 Changed the way Zebra keeps its maintenance information about attribute
384 sets, available attributes, etc.. Records in "SGML" notation using an
385 EXPLAIN schema is now used when appropriate.
387 Bug fix: Index didn't handle update/insert/delete of the same record
388 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
389 first occurence of a record is considered.
391 Most searches now return correct number of hits.
393 New modular ranking system. Interested programmers are encouraged to
394 inspect rank1.c and improve the algorithm.
396 Bug fix: Lock files weren't removed as they should on NT.
398 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
399 specify a "sort register". Refer to the gils sample records which refer
400 to index type "s" which is specified as "sort" in the default.idx file.
401 Each sort criteria can either be Ascending or Descending and at most
402 three sort elements can be specified.
404 Bug fix: Character mapping didn't work for text files.
408 Simple ranked searches now return correct number of hits.
410 The test option (-s) only makes a read-lock on the index as well
411 as using read-only operations anywhere.
413 Moved towards generic character mapping. Configuration file default.idx
414 specifies character map files for register types w, p, u, etc.
416 Implemented "begin variant" for the sgml.regx - filter.
418 Fixed a few memory leaks.
420 Added support for C++, headers uses extern "C" for public definitions.
422 Bug fix: The show records facility (-s) only displayed information for
423 the first record in a file (and not for every record in the file).
425 Added option "-f <n>" to limit the logging of record operations. After
426 <n> records has been processed no logging is performed (unless errors
429 Bug fix: the compressed ISAM system didn't handle update operations
432 Added setting, "maxResultSetSize", to hold the number of records to
433 save in a result set.
435 Bug fix: Complete phrase did't work for search operations.
437 Bug fix: temporary result sets weren't deleted.
439 Reduced disk space for saved keys (storeKeys = 1).
441 Added optional, physical ANY (key replication)
443 Implemented proximity operator in search.
445 Bug fix: the path name buffers used by file match traversal routines
446 have been extended to support long file names.
448 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
449 configuration file. The resulting register without "storeKeys" is about
450 half the size, and the memory used by zebraidx during phase 2 (merge) is
451 reduced to a minimum.
453 Reworked the way Regexp-2 queries with error tolerance are handled and
454 specified. The documentation has been updated accordingly.
456 Bug fix: Zebrasrv didn't search correctly when queries contained masking
457 characters. This bug was introduced in 1.0a8.
459 Zebrasrv now tag records with the proper database name.
461 New settings, memMax and keyTmpDir.
463 Changed name of setting lockDir (previously called lockPath) and
464 setTmpDir (previously called tempSetPath).
466 Generalized and changed record type specifications. In short, there are:
468 grs.sgml structured, "SGML-like" syntax
469 grs.regx.<filter> structured, Regular expression filter
470 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
471 is the name of an abstract syntax file.
472 Bug fix: Result sets weren't sorted in operations involving boolean
473 operations with "ranked" operands.
477 Added national character-handling subsystem.
481 Small modifications to input filters and profiles.
483 Added support for SOIF syntax (with private OID).
487 Fixed buffer-size problem in indexing.
489 Added compression to temporary files for updating.
491 Added phrase registers.
493 Added dynamic mapping of search attribute to multiple termlists (ANY).
495 Scan support in multiple databases/registers.
497 Configuration settings are case-insensitive and single dash (-)
498 characters are ignored in comparisons.
500 The index processing ignores empty files - warning given.
502 New option to zebraidx (-V) displays version information.
506 Fixed problem in file-update system.
508 Fixed problem in shadow system; register was sometimes corrupted after
513 Fixed problems in the ISAM subsystem. Caused difficulties when updating
516 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
517 the rank and record number.
519 Fixed bug in the isam subsystem - caused a malfunction when accessing
520 words which occurred more than 10000 times.
522 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
525 Server can now run under inetd. Use option -i, and -w <directory> to
526 set working directory to desired location.
528 New zebraidx command: clean - removes temporary shadow files.
530 Fixed bug in ISAM system. Occurred rarely during register updates.
532 Logging during index merge phase is improved. The remaining running
535 Temporary files generated by zebraidx are removed after each run.
537 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
538 when doing scan operations in dictionaries with European characters.
542 A whole slew of updates, to make the first publicized release. Get the doc
547 Memory-problems in ISAM fixed. More blocktypes added to the default setup
548 to increase performance on larger databases.
550 Various minor changes in data management system.
554 A couple of portability-problems resolved.
556 Changed some malloc() to xmalloc().