2 Attempt to avoid SEGV in older versions of Expat by not calling
3 XML_GetCurrent{Line,Column}Number when XML_Parse fails. New
6 Zebra ignores "unsupported use attribute" for individual databases
7 when search multiple databases (unless all databases fail).
9 New filter grs.marcxml which works like grs.marc but produces MARCXML.
11 Added support for database deletion. It is possible to create/drop
12 a database from zebraidx utility.
14 Write zebrasrv.pid to lockdir.
16 Bug fix: result sets were not recovered correctly. Had to
17 add ODR handle for zebra_search_RPN in order to make it work.
19 Fixed a bug in regx filters that didn't do anchors (^) correctly.
21 Fixed a bug in searches with X-Path searches sometimes giving "extra"
24 Zebra server checks for zebrasrv.pid and refuses to start if it is already
25 locked by another (running) zebrasrv.
27 Fixed a bug with text being chunked in pieces for the grs.xml filter.
31 xelm code updates. xelm works regardless state of 'xpath enable/disable'
32 Avoid -L/usr/lib since that is already default library path.
34 Allow multiple updates within one transaction.
36 Fixed a bug with >2GB files (overflow in integer expression).
40 Fix linker error for Perl module.
42 Fix bug in and operation which in some cases could result in "extra"
43 hits. Bug was introduced in 1.3.5.
45 Fix bug in handling of schema conversion when producing numeric tags.
51 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
55 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
56 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
57 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
59 livrank: another experimental ranking algorithm. Source in livcode.c.
60 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
62 Contributed by Pete Mallinson, University of Liverpool.
64 Advanced MARC indexing. See doc/marc_indexing.xml
65 Oleg Kolobov <oleg at lib.tpu.ru>
67 Perl API updates and fixes.
68 Peter Popovics <pop at technomat.hu>
70 Fixed 'zebraidx delete'.
72 Implemented 'zebraidx clean'.
74 64-bit offsets for register files on WIN32 (no 2 GB limit).
76 Fixed a few memory leaks WRT sorting.
80 Fixed error handling : error code was not properly returned.
82 Support Truncation 104 (CCL).
86 Added missing source files for perl extension.
90 Implemented xelm directive.
92 Updated for newer version of YAZ (introduction of string schema).
94 Directory examples/zthes now part of distribution (was missing
97 New .abs directive, systag, that control where to put retrieval
98 information. The directive takes two arguments: system tag, element name.
99 System tag is one of : rank, sysno, size.
103 Perl Filter and Perl API. By Peter Popovics.
105 For zebra.cfg, if no profilePath is specified, directory
106 (prefix)/share/idzebra/tab
109 Zebra Examples in examples . Zebra tests in test.
111 Bug fix: sort index was not properly modified on
112 record updates/deletes.
114 Fix handling of character entities for sgml filter.
116 Move data1 to Zebra (used to be part of YAZ).
120 Fix character encoding of scan response terms.
122 Fix character decoding of scan request terms.
124 Fix ESpec handling (requires YAZ 1.9.1)
126 Fix searches for complete fields.
130 When name zebra is used in a filename or directory 'idzebra' is used
131 instead to avoid confusion with GNU zebra (routing software).
133 Zebra server stops with a fatal error if config file cannot be read.
135 New config setting, followLinks, that controls whether update of files
136 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
137 By default symbolic links are followed.
139 Fix MARC transfer . MARC fields had wrong data for multiple fields.
141 XML record reader moved from YAZ to Zebra, to make YAZ less
142 dependant on external libraries.
144 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
145 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
146 on systems that doesn't offer iconv.
148 XML record reader supports external system entities.
152 New .abs-directive "xpath" that takes one argument: "enable"
153 or "disable" to enable and disable XPath -indexing. If no "xpath"
154 direcive is found in .abs-file , XPath-indexing is disabled to ensure
155 backwards compatibility. For missing .abs-files XPath-indexing is
156 enabled so that such records are searchable.
158 Zebra warns about missing .abs-file only once (for each type).
160 Fixed a bug in file update where already-inserted files could
165 Zebra license changed to GNU GPL.
167 XPath-like queries used when RPN string attributes are used, eg.
168 @attr 1=/portal/title sometitle
169 @attr 1=/portal/title[@xml:lang=da] danishtitle
170 @attr 1=/portal/title/@xml:lang da
171 @attr 1=//title sometitle
173 Zebra uses UTF-8 internally:
174 1) New setting "encoding" for zebra.cfg that specifies encoding for
175 OCTET terms in queries and record encoding for most transfer syntaxes
176 (except those that use International Strings, such as GRS-1).
177 2) The encoding of International strings is UTF-8 by default. It
178 may be changed by character set negotiation. If character set
179 negotiation is in effect and if records are selected for conversion
180 these'll be converted to the selected character set - thus overriding
181 the encoding setting in zebra.cfg.
182 3) New directive "encoding" in .abs-files. This specifies the external
183 character encoding for files indexed by zebra. However, if records
184 themselves have an XML header that specifies and encoding that'll be used
187 XML filter (-t grs.xml).
189 Multiple registers. New setting in resource 'root' that holds base
190 directory for register(s). A group a databases may be put in separate
191 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
195 Fixes for Digital Unix
197 Implemented hits per term using USR:SearchResult-1.
199 New Zebra API. Locking system re-implemented.
201 --- 1.1.stable 2002/02/20
203 Rank weight can be controlled with attribute type 9. Default
204 value is 34. Recommended values between 1-36.
208 Updated for YAZ version 1.8.
210 Added support for termsets - a result set of terms matching
211 a given query. For @attr 8=<set> creates termset named <set>.
213 Added support for raw retrieval. Element Set Name R forces the
214 text filter which returns the record in its original form.
216 Added numerical sort - triggered by structure=numeric (4=109).
218 Remote record import using Z39.50 Extended Services and Segments.
220 Fixed bug where updating a database with user-defined attributes
221 could corrupt the register (bad storeKeys).
223 Multi-threaded version.
225 Fixed bug regarding proximity.
227 Documentation updates.
229 Fixed bug in record retrieval module that occured on 64-bit OSF
234 Fixed bug in makefile for WIN32.
236 Fixed bug in configure script - used bash-specific features.
240 Added support for multiple records in one file for filter grs.sgml.
242 Changed record index structure. New layout is incompatible with
243 previous releases. Added setting "recordcompression" to control
244 compression of records. Possible values are "none" (no
245 compression) and bzip2 (compression using libbz2).
247 Added XML transfer syntax support for retrieval of structured records.
248 Schema in CompSpec is recognised in retrieval of structured records.
250 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
251 that fails, the filter reads the file <filt>.flt (regx style filter).
253 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
254 Zebra's configure script automatically attempts to locate Tcl. For
255 manual Tcl configuration use option --with-tclconfig=<path> to specify
256 where Tcl's library files are located.
258 Implemented "compression" of Dictionary and ISAM system. Dictionary
261 Added "tagsysno" directive to zebra.cfg to control under which tag the
262 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
265 Added "tagrank" as above.
267 Changed file naming scheme for register files from <name>.mf.<no> to
270 Implemented "position"-flag for register type (as defined in
271 default.idx). When set to zero no position (or seqence number) is
272 saved in register for each word occurrence, thus saving some register
275 Implemented database mapping. Using mapdb one can specify a database
276 to be mapped to one or more physical databases. Usage:
277 mapdb <fromdb> <todb> ..
279 Added SOIF-filter. Thanks to Peter Valkenburg.
281 For the regx-filter "end element -record" may trigger a mark-of-record
282 if outer level is reached.
284 Tag sets may be typed in the reference to it. From the .abs-file the
285 "tagset" directive takes a third optional integer type for the tag set
286 referenced. From a .tag-file the "include" directive takes a third
287 optional type as well. The old "type" directive in the tag set itself
288 is still recognized but acts as the default type for the tag set.
290 Zebra supports the specification of arbitrary attributes sets, schemas
291 and tag sets, because of the change in YAZ' OID management system.
293 Fixed bug in Sort that caused it NOT to use character mapping as it
296 Zebra now uses GNU configure to generate Makefile(s).
298 Added un-optimised support for left and left/right truncation attributes.
300 Added support for relational operators on text when using RPN queries.
302 Added support for sort specifications in RPN queries. Type 7 specifies
303 'sort' where value 1=ascending, value 2=descending. The use attribute
304 specifies the field criteria as usual. The term specifies priority
305 where 0=first, 1=second, ...
307 Changed the way use attributes are specified in the recordId
310 Maximum number of databases in one Zebra register increased.
312 New setting, databasePath, which specifies that first directory during
313 update traversal is the database name (instead of a fixed one).
315 New setting, explainDatabase, which specifies that databases are
318 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
320 Implemented EXPLAIN database maintenance. Zebra automatically
321 generate - and update CategoryList, TargetInfo, DatabaseInfo,
322 AttributeSetInfo and AttributeDetails records at this stage. The
323 records may be transferred as GRS-1, SUTRS or Explain.
325 Fixed register spec so that colon isn't treated as size separator
326 unless followed by [0-9+-] in order to allow DOS drive specifications.
328 Fixed two bugs in ISAMC system.
330 Changed the way Zebra keeps its maintenance information about attribute
331 sets, available attributes, etc.. Records in "SGML" notation using an
332 EXPLAIN schema is now used when appropriate.
334 Bug fix: Index didn't handle update/insert/delete of the same record
335 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
336 first occurence of a record is considered.
338 Most searches now return correct number of hits.
340 New modular ranking system. Interested programmers are encouraged to
341 inspect rank1.c and improve the algorithm.
343 Bug fix: Lock files weren't removed as they should on NT.
345 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
346 specify a "sort register". Refer to the gils sample records which refer
347 to index type "s" which is specified as "sort" in the default.idx file.
348 Each sort criteria can either be Ascending or Descending and at most
349 three sort elements can be specified.
351 Bug fix: Character mapping didn't work for text files.
355 Simple ranked searches now return correct number of hits.
357 The test option (-s) only makes a read-lock on the index as well
358 as using read-only operations anywhere.
360 Moved towards generic character mapping. Configuration file default.idx
361 specifies character map files for register types w, p, u, etc.
363 Implemented "begin variant" for the sgml.regx - filter.
365 Fixed a few memory leaks.
367 Added support for C++, headers uses extern "C" for public definitions.
369 Bug fix: The show records facility (-s) only displayed information for
370 the first record in a file (and not for every record in the file).
372 Added option "-f <n>" to limit the logging of record operations. After
373 <n> records has been processed no logging is performed (unless errors
376 Bug fix: the compressed ISAM system didn't handle update operations
379 Added setting, "maxResultSetSize", to hold the number of records to
380 save in a result set.
382 Bug fix: Complete phrase did't work for search operations.
384 Bug fix: temporary result sets weren't deleted.
386 Reduced disk space for saved keys (storeKeys = 1).
388 Added optional, physical ANY (key replication)
390 Implemented proximity operator in search.
392 Bug fix: the path name buffers used by file match traversal routines
393 have been extended to support long file names.
395 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
396 configuration file. The resulting register without "storeKeys" is about
397 half the size, and the memory used by zebraidx during phase 2 (merge) is
398 reduced to a minimum.
400 Reworked the way Regexp-2 queries with error tolerance are handled and
401 specified. The documentation has been updated accordingly.
403 Bug fix: Zebrasrv didn't search correctly when queries contained masking
404 characters. This bug was introduced in 1.0a8.
406 Zebrasrv now tag records with the proper database name.
408 New settings, memMax and keyTmpDir.
410 Changed name of setting lockDir (previously called lockPath) and
411 setTmpDir (previously called tempSetPath).
413 Generalized and changed record type specifications. In short, there are:
415 grs.sgml structured, "SGML-like" syntax
416 grs.regx.<filter> structured, Regular expression filter
417 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
418 is the name of an abstract syntax file.
419 Bug fix: Result sets weren't sorted in operations involving boolean
420 operations with "ranked" operands.
424 Added national character-handling subsystem.
428 Small modifications to input filters and profiles.
430 Added support for SOIF syntax (with private OID).
434 Fixed buffer-size problem in indexing.
436 Added compression to temporary files for updating.
438 Added phrase registers.
440 Added dynamic mapping of search attribute to multiple termlists (ANY).
442 Scan support in multiple databases/registers.
444 Configuration settings are case-insensitive and single dash (-)
445 characters are ignored in comparisons.
447 The index processing ignores empty files - warning given.
449 New option to zebraidx (-V) displays version information.
453 Fixed problem in file-update system.
455 Fixed problem in shadow system; register was sometimes corrupted after
460 Fixed problems in the ISAM subsystem. Caused difficulties when updating
463 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
464 the rank and record number.
466 Fixed bug in the isam subsystem - caused a malfunction when accessing
467 words which occurred more than 10000 times.
469 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
472 Server can now run under inetd. Use option -i, and -w <directory> to
473 set working directory to desired location.
475 New zebraidx command: clean - removes temporary shadow files.
477 Fixed bug in ISAM system. Occurred rarely during register updates.
479 Logging during index merge phase is improved. The remaining running
482 Temporary files generated by zebraidx are removed after each run.
484 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
485 when doing scan operations in dictionaries with European characters.
489 A whole slew of updates, to make the first publicized release. Get the doc
494 Memory-problems in ISAM fixed. More blocktypes added to the default setup
495 to increase performance on larger databases.
497 Various minor changes in data management system.
501 A couple of portability-problems resolved.
503 Changed some malloc() to xmalloc().