2 Fixed a bug in searches with X-Path searches sometimes giving "extra"
5 Zebra server checks for zebrasrv.pid and refuses to start if it is already
6 locked by another (running) zebrasrv.
8 Fixed a bug with text being chunked in pieces for the grs.xml filter.
12 xelm code updates. xelm works regardless state of 'xpath enable/disable'
13 Avoid -L/usr/lib since that is already default library path.
15 Allow multiple updates within one transaction.
17 Fixed a bug with >2GB files (overflow in integer expression).
21 Fix linker error for Perl module.
23 Fix bug in and operation which in some cases could result in "extra"
24 hits. Bug was introduced in 1.3.5.
26 Fix bug in handling of schema conversion when producing numeric tags.
32 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
36 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
37 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
38 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
40 livrank: another experimental ranking algorithm. Source in livcode.c.
41 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
43 Contributed by Pete Mallinson, University of Liverpool.
45 Advanced MARC indexing. See doc/marc_indexing.xml
46 Oleg Kolobov <oleg at lib.tpu.ru>
48 Perl API updates and fixes.
49 Peter Popovics <pop at technomat.hu>
51 Fixed 'zebraidx delete'.
53 Implemented 'zebraidx clean'.
55 64-bit offsets for register files on WIN32 (no 2 GB limit).
57 Fixed a few memory leaks WRT sorting.
61 Fixed error handling : error code was not properly returned.
63 Support Truncation 104 (CCL).
67 Added missing source files for perl extension.
71 Implemented xelm directive.
73 Updated for newer version of YAZ (introduction of string schema).
75 Directory examples/zthes now part of distribution (was missing
78 New .abs directive, systag, that control where to put retrieval
79 information. The directive takes two arguments: system tag, element name.
80 System tag is one of : rank, sysno, size.
84 Perl Filter and Perl API. By Peter Popovics.
86 For zebra.cfg, if no profilePath is specified, directory
87 (prefix)/share/idzebra/tab
90 Zebra Examples in examples . Zebra tests in test.
92 Bug fix: sort index was not properly modified on
93 record updates/deletes.
95 Fix handling of character entities for sgml filter.
97 Move data1 to Zebra (used to be part of YAZ).
101 Fix character encoding of scan response terms.
103 Fix character decoding of scan request terms.
105 Fix ESpec handling (requires YAZ 1.9.1)
107 Fix searches for complete fields.
111 When name zebra is used in a filename or directory 'idzebra' is used
112 instead to avoid confusion with GNU zebra (routing software).
114 Zebra server stops with a fatal error if config file cannot be read.
116 New config setting, followLinks, that controls whether update of files
117 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
118 By default symbolic links are followed.
120 Fix MARC transfer . MARC fields had wrong data for multiple fields.
122 XML record reader moved from YAZ to Zebra, to make YAZ less
123 dependant on external libraries.
125 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
126 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
127 on systems that doesn't offer iconv.
129 XML record reader supports external system entities.
133 New .abs-directive "xpath" that takes one argument: "enable"
134 or "disable" to enable and disable XPath -indexing. If no "xpath"
135 direcive is found in .abs-file , XPath-indexing is disabled to ensure
136 backwards compatibility. For missing .abs-files XPath-indexing is
137 enabled so that such records are searchable.
139 Zebra warns about missing .abs-file only once (for each type).
141 Fixed a bug in file update where already-inserted files could
146 Zebra license changed to GNU GPL.
148 XPath-like queries used when RPN string attributes are used, eg.
149 @attr 1=/portal/title sometitle
150 @attr 1=/portal/title[@xml:lang=da] danishtitle
151 @attr 1=/portal/title/@xml:lang da
152 @attr 1=//title sometitle
154 Zebra uses UTF-8 internally:
155 1) New setting "encoding" for zebra.cfg that specifies encoding for
156 OCTET terms in queries and record encoding for most transfer syntaxes
157 (except those that use International Strings, such as GRS-1).
158 2) The encoding of International strings is UTF-8 by default. It
159 may be changed by character set negotiation. If character set
160 negotiation is in effect and if records are selected for conversion
161 these'll be converted to the selected character set - thus overriding
162 the encoding setting in zebra.cfg.
163 3) New directive "encoding" in .abs-files. This specifies the external
164 character encoding for files indexed by zebra. However, if records
165 themselves have an XML header that specifies and encoding that'll be used
168 XML filter (-t grs.xml).
170 Multiple registers. New setting in resource 'root' that holds base
171 directory for register(s). A group a databases may be put in separate
172 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
176 Fixes for Digital Unix
178 Implemented hits per term using USR:SearchResult-1.
180 New Zebra API. Locking system re-implemented.
182 --- 1.1.stable 2002/02/20
184 Rank weight can be controlled with attribute type 9. Default
185 value is 34. Recommended values between 1-36.
189 Updated for YAZ version 1.8.
191 Added support for termsets - a result set of terms matching
192 a given query. For @attr 8=<set> creates termset named <set>.
194 Added support for raw retrieval. Element Set Name R forces the
195 text filter which returns the record in its original form.
197 Added numerical sort - triggered by structure=numeric (4=109).
199 Remote record import using Z39.50 Extended Services and Segments.
201 Fixed bug where updating a database with user-defined attributes
202 could corrupt the register (bad storeKeys).
204 Multi-threaded version.
206 Fixed bug regarding proximity.
208 Documentation updates.
210 Fixed bug in record retrieval module that occured on 64-bit OSF
215 Fixed bug in makefile for WIN32.
217 Fixed bug in configure script - used bash-specific features.
221 Added support for multiple records in one file for filter grs.sgml.
223 Changed record index structure. New layout is incompatible with
224 previous releases. Added setting "recordcompression" to control
225 compression of records. Possible values are "none" (no
226 compression) and bzip2 (compression using libbz2).
228 Added XML transfer syntax support for retrieval of structured records.
229 Schema in CompSpec is recognised in retrieval of structured records.
231 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
232 that fails, the filter reads the file <filt>.flt (regx style filter).
234 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
235 Zebra's configure script automatically attempts to locate Tcl. For
236 manual Tcl configuration use option --with-tclconfig=<path> to specify
237 where Tcl's library files are located.
239 Implemented "compression" of Dictionary and ISAM system. Dictionary
242 Added "tagsysno" directive to zebra.cfg to control under which tag the
243 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
246 Added "tagrank" as above.
248 Changed file naming scheme for register files from <name>.mf.<no> to
251 Implemented "position"-flag for register type (as defined in
252 default.idx). When set to zero no position (or seqence number) is
253 saved in register for each word occurrence, thus saving some register
256 Implemented database mapping. Using mapdb one can specify a database
257 to be mapped to one or more physical databases. Usage:
258 mapdb <fromdb> <todb> ..
260 Added SOIF-filter. Thanks to Peter Valkenburg.
262 For the regx-filter "end element -record" may trigger a mark-of-record
263 if outer level is reached.
265 Tag sets may be typed in the reference to it. From the .abs-file the
266 "tagset" directive takes a third optional integer type for the tag set
267 referenced. From a .tag-file the "include" directive takes a third
268 optional type as well. The old "type" directive in the tag set itself
269 is still recognized but acts as the default type for the tag set.
271 Zebra supports the specification of arbitrary attributes sets, schemas
272 and tag sets, because of the change in YAZ' OID management system.
274 Fixed bug in Sort that caused it NOT to use character mapping as it
277 Zebra now uses GNU configure to generate Makefile(s).
279 Added un-optimised support for left and left/right truncation attributes.
281 Added support for relational operators on text when using RPN queries.
283 Added support for sort specifications in RPN queries. Type 7 specifies
284 'sort' where value 1=ascending, value 2=descending. The use attribute
285 specifies the field criteria as usual. The term specifies priority
286 where 0=first, 1=second, ...
288 Changed the way use attributes are specified in the recordId
291 Maximum number of databases in one Zebra register increased.
293 New setting, databasePath, which specifies that first directory during
294 update traversal is the database name (instead of a fixed one).
296 New setting, explainDatabase, which specifies that databases are
299 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
301 Implemented EXPLAIN database maintenance. Zebra automatically
302 generate - and update CategoryList, TargetInfo, DatabaseInfo,
303 AttributeSetInfo and AttributeDetails records at this stage. The
304 records may be transferred as GRS-1, SUTRS or Explain.
306 Fixed register spec so that colon isn't treated as size separator
307 unless followed by [0-9+-] in order to allow DOS drive specifications.
309 Fixed two bugs in ISAMC system.
311 Changed the way Zebra keeps its maintenance information about attribute
312 sets, available attributes, etc.. Records in "SGML" notation using an
313 EXPLAIN schema is now used when appropriate.
315 Bug fix: Index didn't handle update/insert/delete of the same record
316 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
317 first occurence of a record is considered.
319 Most searches now return correct number of hits.
321 New modular ranking system. Interested programmers are encouraged to
322 inspect rank1.c and improve the algorithm.
324 Bug fix: Lock files weren't removed as they should on NT.
326 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
327 specify a "sort register". Refer to the gils sample records which refer
328 to index type "s" which is specified as "sort" in the default.idx file.
329 Each sort criteria can either be Ascending or Descending and at most
330 three sort elements can be specified.
332 Bug fix: Character mapping didn't work for text files.
336 Simple ranked searches now return correct number of hits.
338 The test option (-s) only makes a read-lock on the index as well
339 as using read-only operations anywhere.
341 Moved towards generic character mapping. Configuration file default.idx
342 specifies character map files for register types w, p, u, etc.
344 Implemented "begin variant" for the sgml.regx - filter.
346 Fixed a few memory leaks.
348 Added support for C++, headers uses extern "C" for public definitions.
350 Bug fix: The show records facility (-s) only displayed information for
351 the first record in a file (and not for every record in the file).
353 Added option "-f <n>" to limit the logging of record operations. After
354 <n> records has been processed no logging is performed (unless errors
357 Bug fix: the compressed ISAM system didn't handle update operations
360 Added setting, "maxResultSetSize", to hold the number of records to
361 save in a result set.
363 Bug fix: Complete phrase did't work for search operations.
365 Bug fix: temporary result sets weren't deleted.
367 Reduced disk space for saved keys (storeKeys = 1).
369 Added optional, physical ANY (key replication)
371 Implemented proximity operator in search.
373 Bug fix: the path name buffers used by file match traversal routines
374 have been extended to support long file names.
376 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
377 configuration file. The resulting register without "storeKeys" is about
378 half the size, and the memory used by zebraidx during phase 2 (merge) is
379 reduced to a minimum.
381 Reworked the way Regexp-2 queries with error tolerance are handled and
382 specified. The documentation has been updated accordingly.
384 Bug fix: Zebrasrv didn't search correctly when queries contained masking
385 characters. This bug was introduced in 1.0a8.
387 Zebrasrv now tag records with the proper database name.
389 New settings, memMax and keyTmpDir.
391 Changed name of setting lockDir (previously called lockPath) and
392 setTmpDir (previously called tempSetPath).
394 Generalized and changed record type specifications. In short, there are:
396 grs.sgml structured, "SGML-like" syntax
397 grs.regx.<filter> structured, Regular expression filter
398 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
399 is the name of an abstract syntax file.
400 Bug fix: Result sets weren't sorted in operations involving boolean
401 operations with "ranked" operands.
405 Added national character-handling subsystem.
409 Small modifications to input filters and profiles.
411 Added support for SOIF syntax (with private OID).
415 Fixed buffer-size problem in indexing.
417 Added compression to temporary files for updating.
419 Added phrase registers.
421 Added dynamic mapping of search attribute to multiple termlists (ANY).
423 Scan support in multiple databases/registers.
425 Configuration settings are case-insensitive and single dash (-)
426 characters are ignored in comparisons.
428 The index processing ignores empty files - warning given.
430 New option to zebraidx (-V) displays version information.
434 Fixed problem in file-update system.
436 Fixed problem in shadow system; register was sometimes corrupted after
441 Fixed problems in the ISAM subsystem. Caused difficulties when updating
444 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
445 the rank and record number.
447 Fixed bug in the isam subsystem - caused a malfunction when accessing
448 words which occurred more than 10000 times.
450 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
453 Server can now run under inetd. Use option -i, and -w <directory> to
454 set working directory to desired location.
456 New zebraidx command: clean - removes temporary shadow files.
458 Fixed bug in ISAM system. Occurred rarely during register updates.
460 Logging during index merge phase is improved. The remaining running
463 Temporary files generated by zebraidx are removed after each run.
465 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
466 when doing scan operations in dictionaries with European characters.
470 A whole slew of updates, to make the first publicized release. Get the doc
475 Memory-problems in ISAM fixed. More blocktypes added to the default setup
476 to increase performance on larger databases.
478 Various minor changes in data management system.
482 A couple of portability-problems resolved.
484 Changed some malloc() to xmalloc().