2 Fix bug in regx filter with regular expression parsing being non-greedy.
6 Fix XML error handling. Stop XML parse immediately if XML parse error
7 occur (i.e. produce one error only).
9 Zebra ignores "unsupported use attribute" for individual databases
10 when search multiple databases (unless all databases fail).
12 New filter grs.marcxml which works like grs.marc but produces MARCXML.
14 Added support for database deletion. It is possible to create/drop
15 a database from zebraidx utility. Note: only for isam:b.
17 Write zebrasrv.pid to lockdir.
19 Bug fix: result sets were not recovered correctly. Had to
20 add ODR handle for zebra_search_RPN in order to make it work.
22 Fixed a bug in regx filters that didn't do anchors (^) correctly.
24 Fixed a bug in searches with X-Path searches sometimes giving "extra"
27 Zebra server checks for zebrasrv.pid and refuses to start if it is already
28 locked by another (running) zebrasrv.
30 Fixed a bug with text being chunked in pieces for the grs.xml filter.
34 xelm code updates. xelm works regardless state of 'xpath enable/disable'
35 Avoid -L/usr/lib since that is already default library path.
37 Allow multiple updates within one transaction.
39 Fixed a bug with >2GB files (overflow in integer expression).
43 Fix linker error for Perl module.
45 Fix bug in and operation which in some cases could result in "extra"
46 hits. Bug was introduced in 1.3.5.
48 Fix bug in handling of schema conversion when producing numeric tags.
54 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
58 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
59 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
60 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
62 livrank: another experimental ranking algorithm. Source in livcode.c.
63 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
65 Contributed by Pete Mallinson, University of Liverpool.
67 Advanced MARC indexing. See doc/marc_indexing.xml
68 Oleg Kolobov <oleg at lib.tpu.ru>
70 Perl API updates and fixes.
71 Peter Popovics <pop at technomat.hu>
73 Fixed 'zebraidx delete'.
75 Implemented 'zebraidx clean'.
77 64-bit offsets for register files on WIN32 (no 2 GB limit).
79 Fixed a few memory leaks WRT sorting.
83 Fixed error handling : error code was not properly returned.
85 Support Truncation 104 (CCL).
89 Added missing source files for perl extension.
93 Implemented xelm directive.
95 Updated for newer version of YAZ (introduction of string schema).
97 Directory examples/zthes now part of distribution (was missing
100 New .abs directive, systag, that control where to put retrieval
101 information. The directive takes two arguments: system tag, element name.
102 System tag is one of : rank, sysno, size.
106 Perl Filter and Perl API. By Peter Popovics.
108 For zebra.cfg, if no profilePath is specified, directory
109 (prefix)/share/idzebra/tab
112 Zebra Examples in examples . Zebra tests in test.
114 Bug fix: sort index was not properly modified on
115 record updates/deletes.
117 Fix handling of character entities for sgml filter.
119 Move data1 to Zebra (used to be part of YAZ).
123 Fix character encoding of scan response terms.
125 Fix character decoding of scan request terms.
127 Fix ESpec handling (requires YAZ 1.9.1)
129 Fix searches for complete fields.
133 When name zebra is used in a filename or directory 'idzebra' is used
134 instead to avoid confusion with GNU zebra (routing software).
136 Zebra server stops with a fatal error if config file cannot be read.
138 New config setting, followLinks, that controls whether update of files
139 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
140 By default symbolic links are followed.
142 Fix MARC transfer . MARC fields had wrong data for multiple fields.
144 XML record reader moved from YAZ to Zebra, to make YAZ less
145 dependant on external libraries.
147 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
148 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
149 on systems that doesn't offer iconv.
151 XML record reader supports external system entities.
155 New .abs-directive "xpath" that takes one argument: "enable"
156 or "disable" to enable and disable XPath -indexing. If no "xpath"
157 direcive is found in .abs-file , XPath-indexing is disabled to ensure
158 backwards compatibility. For missing .abs-files XPath-indexing is
159 enabled so that such records are searchable.
161 Zebra warns about missing .abs-file only once (for each type).
163 Fixed a bug in file update where already-inserted files could
168 Zebra license changed to GNU GPL.
170 XPath-like queries used when RPN string attributes are used, eg.
171 @attr 1=/portal/title sometitle
172 @attr 1=/portal/title[@xml:lang=da] danishtitle
173 @attr 1=/portal/title/@xml:lang da
174 @attr 1=//title sometitle
176 Zebra uses UTF-8 internally:
177 1) New setting "encoding" for zebra.cfg that specifies encoding for
178 OCTET terms in queries and record encoding for most transfer syntaxes
179 (except those that use International Strings, such as GRS-1).
180 2) The encoding of International strings is UTF-8 by default. It
181 may be changed by character set negotiation. If character set
182 negotiation is in effect and if records are selected for conversion
183 these'll be converted to the selected character set - thus overriding
184 the encoding setting in zebra.cfg.
185 3) New directive "encoding" in .abs-files. This specifies the external
186 character encoding for files indexed by zebra. However, if records
187 themselves have an XML header that specifies and encoding that'll be used
190 XML filter (-t grs.xml).
192 Multiple registers. New setting in resource 'root' that holds base
193 directory for register(s). A group a databases may be put in separate
194 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
198 Fixes for Digital Unix
200 Implemented hits per term using USR:SearchResult-1.
202 New Zebra API. Locking system re-implemented.
204 --- 1.1.stable 2002/02/20
206 Rank weight can be controlled with attribute type 9. Default
207 value is 34. Recommended values between 1-36.
211 Updated for YAZ version 1.8.
213 Added support for termsets - a result set of terms matching
214 a given query. For @attr 8=<set> creates termset named <set>.
216 Added support for raw retrieval. Element Set Name R forces the
217 text filter which returns the record in its original form.
219 Added numerical sort - triggered by structure=numeric (4=109).
221 Remote record import using Z39.50 Extended Services and Segments.
223 Fixed bug where updating a database with user-defined attributes
224 could corrupt the register (bad storeKeys).
226 Multi-threaded version.
228 Fixed bug regarding proximity.
230 Documentation updates.
232 Fixed bug in record retrieval module that occured on 64-bit OSF
237 Fixed bug in makefile for WIN32.
239 Fixed bug in configure script - used bash-specific features.
243 Added support for multiple records in one file for filter grs.sgml.
245 Changed record index structure. New layout is incompatible with
246 previous releases. Added setting "recordcompression" to control
247 compression of records. Possible values are "none" (no
248 compression) and bzip2 (compression using libbz2).
250 Added XML transfer syntax support for retrieval of structured records.
251 Schema in CompSpec is recognised in retrieval of structured records.
253 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
254 that fails, the filter reads the file <filt>.flt (regx style filter).
256 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
257 Zebra's configure script automatically attempts to locate Tcl. For
258 manual Tcl configuration use option --with-tclconfig=<path> to specify
259 where Tcl's library files are located.
261 Implemented "compression" of Dictionary and ISAM system. Dictionary
264 Added "tagsysno" directive to zebra.cfg to control under which tag the
265 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
268 Added "tagrank" as above.
270 Changed file naming scheme for register files from <name>.mf.<no> to
273 Implemented "position"-flag for register type (as defined in
274 default.idx). When set to zero no position (or seqence number) is
275 saved in register for each word occurrence, thus saving some register
278 Implemented database mapping. Using mapdb one can specify a database
279 to be mapped to one or more physical databases. Usage:
280 mapdb <fromdb> <todb> ..
282 Added SOIF-filter. Thanks to Peter Valkenburg.
284 For the regx-filter "end element -record" may trigger a mark-of-record
285 if outer level is reached.
287 Tag sets may be typed in the reference to it. From the .abs-file the
288 "tagset" directive takes a third optional integer type for the tag set
289 referenced. From a .tag-file the "include" directive takes a third
290 optional type as well. The old "type" directive in the tag set itself
291 is still recognized but acts as the default type for the tag set.
293 Zebra supports the specification of arbitrary attributes sets, schemas
294 and tag sets, because of the change in YAZ' OID management system.
296 Fixed bug in Sort that caused it NOT to use character mapping as it
299 Zebra now uses GNU configure to generate Makefile(s).
301 Added un-optimised support for left and left/right truncation attributes.
303 Added support for relational operators on text when using RPN queries.
305 Added support for sort specifications in RPN queries. Type 7 specifies
306 'sort' where value 1=ascending, value 2=descending. The use attribute
307 specifies the field criteria as usual. The term specifies priority
308 where 0=first, 1=second, ...
310 Changed the way use attributes are specified in the recordId
313 Maximum number of databases in one Zebra register increased.
315 New setting, databasePath, which specifies that first directory during
316 update traversal is the database name (instead of a fixed one).
318 New setting, explainDatabase, which specifies that databases are
321 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
323 Implemented EXPLAIN database maintenance. Zebra automatically
324 generate - and update CategoryList, TargetInfo, DatabaseInfo,
325 AttributeSetInfo and AttributeDetails records at this stage. The
326 records may be transferred as GRS-1, SUTRS or Explain.
328 Fixed register spec so that colon isn't treated as size separator
329 unless followed by [0-9+-] in order to allow DOS drive specifications.
331 Fixed two bugs in ISAMC system.
333 Changed the way Zebra keeps its maintenance information about attribute
334 sets, available attributes, etc.. Records in "SGML" notation using an
335 EXPLAIN schema is now used when appropriate.
337 Bug fix: Index didn't handle update/insert/delete of the same record
338 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
339 first occurence of a record is considered.
341 Most searches now return correct number of hits.
343 New modular ranking system. Interested programmers are encouraged to
344 inspect rank1.c and improve the algorithm.
346 Bug fix: Lock files weren't removed as they should on NT.
348 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
349 specify a "sort register". Refer to the gils sample records which refer
350 to index type "s" which is specified as "sort" in the default.idx file.
351 Each sort criteria can either be Ascending or Descending and at most
352 three sort elements can be specified.
354 Bug fix: Character mapping didn't work for text files.
358 Simple ranked searches now return correct number of hits.
360 The test option (-s) only makes a read-lock on the index as well
361 as using read-only operations anywhere.
363 Moved towards generic character mapping. Configuration file default.idx
364 specifies character map files for register types w, p, u, etc.
366 Implemented "begin variant" for the sgml.regx - filter.
368 Fixed a few memory leaks.
370 Added support for C++, headers uses extern "C" for public definitions.
372 Bug fix: The show records facility (-s) only displayed information for
373 the first record in a file (and not for every record in the file).
375 Added option "-f <n>" to limit the logging of record operations. After
376 <n> records has been processed no logging is performed (unless errors
379 Bug fix: the compressed ISAM system didn't handle update operations
382 Added setting, "maxResultSetSize", to hold the number of records to
383 save in a result set.
385 Bug fix: Complete phrase did't work for search operations.
387 Bug fix: temporary result sets weren't deleted.
389 Reduced disk space for saved keys (storeKeys = 1).
391 Added optional, physical ANY (key replication)
393 Implemented proximity operator in search.
395 Bug fix: the path name buffers used by file match traversal routines
396 have been extended to support long file names.
398 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
399 configuration file. The resulting register without "storeKeys" is about
400 half the size, and the memory used by zebraidx during phase 2 (merge) is
401 reduced to a minimum.
403 Reworked the way Regexp-2 queries with error tolerance are handled and
404 specified. The documentation has been updated accordingly.
406 Bug fix: Zebrasrv didn't search correctly when queries contained masking
407 characters. This bug was introduced in 1.0a8.
409 Zebrasrv now tag records with the proper database name.
411 New settings, memMax and keyTmpDir.
413 Changed name of setting lockDir (previously called lockPath) and
414 setTmpDir (previously called tempSetPath).
416 Generalized and changed record type specifications. In short, there are:
418 grs.sgml structured, "SGML-like" syntax
419 grs.regx.<filter> structured, Regular expression filter
420 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
421 is the name of an abstract syntax file.
422 Bug fix: Result sets weren't sorted in operations involving boolean
423 operations with "ranked" operands.
427 Added national character-handling subsystem.
431 Small modifications to input filters and profiles.
433 Added support for SOIF syntax (with private OID).
437 Fixed buffer-size problem in indexing.
439 Added compression to temporary files for updating.
441 Added phrase registers.
443 Added dynamic mapping of search attribute to multiple termlists (ANY).
445 Scan support in multiple databases/registers.
447 Configuration settings are case-insensitive and single dash (-)
448 characters are ignored in comparisons.
450 The index processing ignores empty files - warning given.
452 New option to zebraidx (-V) displays version information.
456 Fixed problem in file-update system.
458 Fixed problem in shadow system; register was sometimes corrupted after
463 Fixed problems in the ISAM subsystem. Caused difficulties when updating
466 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
467 the rank and record number.
469 Fixed bug in the isam subsystem - caused a malfunction when accessing
470 words which occurred more than 10000 times.
472 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
475 Server can now run under inetd. Use option -i, and -w <directory> to
476 set working directory to desired location.
478 New zebraidx command: clean - removes temporary shadow files.
480 Fixed bug in ISAM system. Occurred rarely during register updates.
482 Logging during index merge phase is improved. The remaining running
485 Temporary files generated by zebraidx are removed after each run.
487 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
488 when doing scan operations in dictionaries with European characters.
492 A whole slew of updates, to make the first publicized release. Get the doc
497 Memory-problems in ISAM fixed. More blocktypes added to the default setup
498 to increase performance on larger databases.
500 Various minor changes in data management system.
504 A couple of portability-problems resolved.
506 Changed some malloc() to xmalloc().