2 Zebra server checks for zebrasrv.pid and refuses to start if it is already
3 locked by another (running) zebrasrv.
5 Fixed a bug with text being chunked in pieces for the grs.xml filter.
9 xelm code updates. xelm works regardless state of 'xpath enable/disable'
10 Avoid -L/usr/lib since that is already default library path.
12 Allow multiple updates within one transaction.
14 Fixed a bug with >2GB files (overflow in integer expression).
18 Fix linker error for Perl module.
20 Fix bug in and operation which in some cases could result in "extra"
21 hits. Bug was introduced in 1.3.5.
23 Fix bug in handling of schema conversion when producing numeric tags.
29 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
33 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
34 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
35 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
37 livrank: another experimental ranking algorithm. Source in livcode.c.
38 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
40 Contributed by Pete Mallinson, University of Liverpool.
42 Advanced MARC indexing. See doc/marc_indexing.xml
43 Oleg Kolobov <oleg at lib.tpu.ru>
45 Perl API updates and fixes.
46 Peter Popovics <pop at technomat.hu>
48 Fixed 'zebraidx delete'.
50 Implemented 'zebraidx clean'.
52 64-bit offsets for register files on WIN32 (no 2 GB limit).
54 Fixed a few memory leaks WRT sorting.
58 Fixed error handling : error code was not properly returned.
60 Support Truncation 104 (CCL).
64 Added missing source files for perl extension.
68 Implemented xelm directive.
70 Updated for newer version of YAZ (introduction of string schema).
72 Directory examples/zthes now part of distribution (was missing
75 New .abs directive, systag, that control where to put retrieval
76 information. The directive takes two arguments: system tag, element name.
77 System tag is one of : rank, sysno, size.
81 Perl Filter and Perl API. By Peter Popovics.
83 For zebra.cfg, if no profilePath is specified, directory
84 (prefix)/share/idzebra/tab
87 Zebra Examples in examples . Zebra tests in test.
89 Bug fix: sort index was not properly modified on
90 record updates/deletes.
92 Fix handling of character entities for sgml filter.
94 Move data1 to Zebra (used to be part of YAZ).
98 Fix character encoding of scan response terms.
100 Fix character decoding of scan request terms.
102 Fix ESpec handling (requires YAZ 1.9.1)
104 Fix searches for complete fields.
108 When name zebra is used in a filename or directory 'idzebra' is used
109 instead to avoid confusion with GNU zebra (routing software).
111 Zebra server stops with a fatal error if config file cannot be read.
113 New config setting, followLinks, that controls whether update of files
114 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
115 By default symbolic links are followed.
117 Fix MARC transfer . MARC fields had wrong data for multiple fields.
119 XML record reader moved from YAZ to Zebra, to make YAZ less
120 dependant on external libraries.
122 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
123 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
124 on systems that doesn't offer iconv.
126 XML record reader supports external system entities.
130 New .abs-directive "xpath" that takes one argument: "enable"
131 or "disable" to enable and disable XPath -indexing. If no "xpath"
132 direcive is found in .abs-file , XPath-indexing is disabled to ensure
133 backwards compatibility. For missing .abs-files XPath-indexing is
134 enabled so that such records are searchable.
136 Zebra warns about missing .abs-file only once (for each type).
138 Fixed a bug in file update where already-inserted files could
143 Zebra license changed to GNU GPL.
145 XPath-like queries used when RPN string attributes are used, eg.
146 @attr 1=/portal/title sometitle
147 @attr 1=/portal/title[@xml:lang=da] danishtitle
148 @attr 1=/portal/title/@xml:lang da
149 @attr 1=//title sometitle
151 Zebra uses UTF-8 internally:
152 1) New setting "encoding" for zebra.cfg that specifies encoding for
153 OCTET terms in queries and record encoding for most transfer syntaxes
154 (except those that use International Strings, such as GRS-1).
155 2) The encoding of International strings is UTF-8 by default. It
156 may be changed by character set negotiation. If character set
157 negotiation is in effect and if records are selected for conversion
158 these'll be converted to the selected character set - thus overriding
159 the encoding setting in zebra.cfg.
160 3) New directive "encoding" in .abs-files. This specifies the external
161 character encoding for files indexed by zebra. However, if records
162 themselves have an XML header that specifies and encoding that'll be used
165 XML filter (-t grs.xml).
167 Multiple registers. New setting in resource 'root' that holds base
168 directory for register(s). A group a databases may be put in separate
169 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
173 Fixes for Digital Unix
175 Implemented hits per term using USR:SearchResult-1.
177 New Zebra API. Locking system re-implemented.
179 --- 1.1.stable 2002/02/20
181 Rank weight can be controlled with attribute type 9. Default
182 value is 34. Recommended values between 1-36.
186 Updated for YAZ version 1.8.
188 Added support for termsets - a result set of terms matching
189 a given query. For @attr 8=<set> creates termset named <set>.
191 Added support for raw retrieval. Element Set Name R forces the
192 text filter which returns the record in its original form.
194 Added numerical sort - triggered by structure=numeric (4=109).
196 Remote record import using Z39.50 Extended Services and Segments.
198 Fixed bug where updating a database with user-defined attributes
199 could corrupt the register (bad storeKeys).
201 Multi-threaded version.
203 Fixed bug regarding proximity.
205 Documentation updates.
207 Fixed bug in record retrieval module that occured on 64-bit OSF
212 Fixed bug in makefile for WIN32.
214 Fixed bug in configure script - used bash-specific features.
218 Added support for multiple records in one file for filter grs.sgml.
220 Changed record index structure. New layout is incompatible with
221 previous releases. Added setting "recordcompression" to control
222 compression of records. Possible values are "none" (no
223 compression) and bzip2 (compression using libbz2).
225 Added XML transfer syntax support for retrieval of structured records.
226 Schema in CompSpec is recognised in retrieval of structured records.
228 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
229 that fails, the filter reads the file <filt>.flt (regx style filter).
231 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
232 Zebra's configure script automatically attempts to locate Tcl. For
233 manual Tcl configuration use option --with-tclconfig=<path> to specify
234 where Tcl's library files are located.
236 Implemented "compression" of Dictionary and ISAM system. Dictionary
239 Added "tagsysno" directive to zebra.cfg to control under which tag the
240 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
243 Added "tagrank" as above.
245 Changed file naming scheme for register files from <name>.mf.<no> to
248 Implemented "position"-flag for register type (as defined in
249 default.idx). When set to zero no position (or seqence number) is
250 saved in register for each word occurrence, thus saving some register
253 Implemented database mapping. Using mapdb one can specify a database
254 to be mapped to one or more physical databases. Usage:
255 mapdb <fromdb> <todb> ..
257 Added SOIF-filter. Thanks to Peter Valkenburg.
259 For the regx-filter "end element -record" may trigger a mark-of-record
260 if outer level is reached.
262 Tag sets may be typed in the reference to it. From the .abs-file the
263 "tagset" directive takes a third optional integer type for the tag set
264 referenced. From a .tag-file the "include" directive takes a third
265 optional type as well. The old "type" directive in the tag set itself
266 is still recognized but acts as the default type for the tag set.
268 Zebra supports the specification of arbitrary attributes sets, schemas
269 and tag sets, because of the change in YAZ' OID management system.
271 Fixed bug in Sort that caused it NOT to use character mapping as it
274 Zebra now uses GNU configure to generate Makefile(s).
276 Added un-optimised support for left and left/right truncation attributes.
278 Added support for relational operators on text when using RPN queries.
280 Added support for sort specifications in RPN queries. Type 7 specifies
281 'sort' where value 1=ascending, value 2=descending. The use attribute
282 specifies the field criteria as usual. The term specifies priority
283 where 0=first, 1=second, ...
285 Changed the way use attributes are specified in the recordId
288 Maximum number of databases in one Zebra register increased.
290 New setting, databasePath, which specifies that first directory during
291 update traversal is the database name (instead of a fixed one).
293 New setting, explainDatabase, which specifies that databases are
296 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
298 Implemented EXPLAIN database maintenance. Zebra automatically
299 generate - and update CategoryList, TargetInfo, DatabaseInfo,
300 AttributeSetInfo and AttributeDetails records at this stage. The
301 records may be transferred as GRS-1, SUTRS or Explain.
303 Fixed register spec so that colon isn't treated as size separator
304 unless followed by [0-9+-] in order to allow DOS drive specifications.
306 Fixed two bugs in ISAMC system.
308 Changed the way Zebra keeps its maintenance information about attribute
309 sets, available attributes, etc.. Records in "SGML" notation using an
310 EXPLAIN schema is now used when appropriate.
312 Bug fix: Index didn't handle update/insert/delete of the same record
313 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
314 first occurence of a record is considered.
316 Most searches now return correct number of hits.
318 New modular ranking system. Interested programmers are encouraged to
319 inspect rank1.c and improve the algorithm.
321 Bug fix: Lock files weren't removed as they should on NT.
323 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
324 specify a "sort register". Refer to the gils sample records which refer
325 to index type "s" which is specified as "sort" in the default.idx file.
326 Each sort criteria can either be Ascending or Descending and at most
327 three sort elements can be specified.
329 Bug fix: Character mapping didn't work for text files.
333 Simple ranked searches now return correct number of hits.
335 The test option (-s) only makes a read-lock on the index as well
336 as using read-only operations anywhere.
338 Moved towards generic character mapping. Configuration file default.idx
339 specifies character map files for register types w, p, u, etc.
341 Implemented "begin variant" for the sgml.regx - filter.
343 Fixed a few memory leaks.
345 Added support for C++, headers uses extern "C" for public definitions.
347 Bug fix: The show records facility (-s) only displayed information for
348 the first record in a file (and not for every record in the file).
350 Added option "-f <n>" to limit the logging of record operations. After
351 <n> records has been processed no logging is performed (unless errors
354 Bug fix: the compressed ISAM system didn't handle update operations
357 Added setting, "maxResultSetSize", to hold the number of records to
358 save in a result set.
360 Bug fix: Complete phrase did't work for search operations.
362 Bug fix: temporary result sets weren't deleted.
364 Reduced disk space for saved keys (storeKeys = 1).
366 Added optional, physical ANY (key replication)
368 Implemented proximity operator in search.
370 Bug fix: the path name buffers used by file match traversal routines
371 have been extended to support long file names.
373 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
374 configuration file. The resulting register without "storeKeys" is about
375 half the size, and the memory used by zebraidx during phase 2 (merge) is
376 reduced to a minimum.
378 Reworked the way Regexp-2 queries with error tolerance are handled and
379 specified. The documentation has been updated accordingly.
381 Bug fix: Zebrasrv didn't search correctly when queries contained masking
382 characters. This bug was introduced in 1.0a8.
384 Zebrasrv now tag records with the proper database name.
386 New settings, memMax and keyTmpDir.
388 Changed name of setting lockDir (previously called lockPath) and
389 setTmpDir (previously called tempSetPath).
391 Generalized and changed record type specifications. In short, there are:
393 grs.sgml structured, "SGML-like" syntax
394 grs.regx.<filter> structured, Regular expression filter
395 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
396 is the name of an abstract syntax file.
397 Bug fix: Result sets weren't sorted in operations involving boolean
398 operations with "ranked" operands.
402 Added national character-handling subsystem.
406 Small modifications to input filters and profiles.
408 Added support for SOIF syntax (with private OID).
412 Fixed buffer-size problem in indexing.
414 Added compression to temporary files for updating.
416 Added phrase registers.
418 Added dynamic mapping of search attribute to multiple termlists (ANY).
420 Scan support in multiple databases/registers.
422 Configuration settings are case-insensitive and single dash (-)
423 characters are ignored in comparisons.
425 The index processing ignores empty files - warning given.
427 New option to zebraidx (-V) displays version information.
431 Fixed problem in file-update system.
433 Fixed problem in shadow system; register was sometimes corrupted after
438 Fixed problems in the ISAM subsystem. Caused difficulties when updating
441 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
442 the rank and record number.
444 Fixed bug in the isam subsystem - caused a malfunction when accessing
445 words which occurred more than 10000 times.
447 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
450 Server can now run under inetd. Use option -i, and -w <directory> to
451 set working directory to desired location.
453 New zebraidx command: clean - removes temporary shadow files.
455 Fixed bug in ISAM system. Occurred rarely during register updates.
457 Logging during index merge phase is improved. The remaining running
460 Temporary files generated by zebraidx are removed after each run.
462 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
463 when doing scan operations in dictionaries with European characters.
467 A whole slew of updates, to make the first publicized release. Get the doc
472 Memory-problems in ISAM fixed. More blocktypes added to the default setup
473 to increase performance on larger databases.
475 Various minor changes in data management system.
479 A couple of portability-problems resolved.
481 Changed some malloc() to xmalloc().