2 Fix bug in and operation which in some cases could result in "extra"
3 hits. Bug was introduced in 1.3.5.
5 Fix bug in handling of schema conversion when producing numeric tags.
11 Add missing files doc/zvrank.txt and doc/marc_indexing.xml.
15 Zvrank: an experimental ranking algorithm. See doc/zvrank.txt and
16 source in index/zvrank.c. Enable this by using rank: zvrank in zebra.cfg.
17 Contributed by Johannes Leveling <Johannes.Leveling at fernuni-hagen.de>
19 livrank: another experimental ranking algorithm. Source in livcode.c.
20 Enable this by using rank: livrank in zebra.cfg and use -DLIV_CODE=1
22 Contributed by Pete Mallinson, University of Liverpool.
24 Advanced MARC indexing. See doc/marc_indexing.xml
25 Oleg Kolobov <oleg at lib.tpu.ru>
27 Perl API updates and fixes.
28 Peter Popovics <pop at technomat.hu>
30 Fixed 'zebraidx delete'.
32 Implemented 'zebraidx clean'.
34 64-bit offsets for register files on WIN32 (no 2 GB limit).
36 Fixed a few memory leaks WRT sorting.
40 Fixed error handling : error code was not properly returned.
42 Support Truncation 104 (CCL).
46 Added missing source files for perl extension.
50 Implemented xelm directive.
52 Updated for newer version of YAZ (introduction of string schema).
54 Directory examples/zthes now part of distribution (was missing
57 New .abs directive, systag, that control where to put retrieval
58 information. The directive takes two arguments: system tag, element name.
59 System tag is one of : rank, sysno, size.
63 Perl Filter and Perl API. By Peter Popovics.
65 For zebra.cfg, if no profilePath is specified, directory
66 (prefix)/share/idzebra/tab
69 Zebra Examples in examples . Zebra tests in test.
71 Bug fix: sort index was not properly modified on
72 record updates/deletes.
74 Fix handling of character entities for sgml filter.
76 Move data1 to Zebra (used to be part of YAZ).
80 Fix character encoding of scan response terms.
82 Fix character decoding of scan request terms.
84 Fix ESpec handling (requires YAZ 1.9.1)
86 Fix searches for complete fields.
90 When name zebra is used in a filename or directory 'idzebra' is used
91 instead to avoid confusion with GNU zebra (routing software).
93 Zebra server stops with a fatal error if config file cannot be read.
95 New config setting, followLinks, that controls whether update of files
96 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
97 By default symbolic links are followed.
99 Fix MARC transfer . MARC fields had wrong data for multiple fields.
101 XML record reader moved from YAZ to Zebra, to make YAZ less
102 dependant on external libraries.
104 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
105 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
106 on systems that doesn't offer iconv.
108 XML record reader supports external system entities.
112 New .abs-directive "xpath" that takes one argument: "enable"
113 or "disable" to enable and disable XPath -indexing. If no "xpath"
114 direcive is found in .abs-file , XPath-indexing is disabled to ensure
115 backwards compatibility. For missing .abs-files XPath-indexing is
116 enabled so that such records are searchable.
118 Zebra warns about missing .abs-file only once (for each type).
120 Fixed a bug in file update where already-inserted files could
125 Zebra license changed to GNU GPL.
127 XPath-like queries used when RPN string attributes are used, eg.
128 @attr 1=/portal/title sometitle
129 @attr 1=/portal/title[@xml:lang=da] danishtitle
130 @attr 1=/portal/title/@xml:lang da
131 @attr 1=//title sometitle
133 Zebra uses UTF-8 internally:
134 1) New setting "encoding" for zebra.cfg that specifies encoding for
135 OCTET terms in queries and record encoding for most transfer syntaxes
136 (except those that use International Strings, such as GRS-1).
137 2) The encoding of International strings is UTF-8 by default. It
138 may be changed by character set negotiation. If character set
139 negotiation is in effect and if records are selected for conversion
140 these'll be converted to the selected character set - thus overriding
141 the encoding setting in zebra.cfg.
142 3) New directive "encoding" in .abs-files. This specifies the external
143 character encoding for files indexed by zebra. However, if records
144 themselves have an XML header that specifies and encoding that'll be used
147 XML filter (-t grs.xml).
149 Multiple registers. New setting in resource 'root' that holds base
150 directory for register(s). A group a databases may be put in separate
151 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
155 Fixes for Digital Unix
157 Implemented hits per term using USR:SearchResult-1.
159 New Zebra API. Locking system re-implemented.
161 --- 1.1.stable 2002/02/20
163 Rank weight can be controlled with attribute type 9. Default
164 value is 34. Recommended values between 1-36.
168 Updated for YAZ version 1.8.
170 Added support for termsets - a result set of terms matching
171 a given query. For @attr 8=<set> creates termset named <set>.
173 Added support for raw retrieval. Element Set Name R forces the
174 text filter which returns the record in its original form.
176 Added numerical sort - triggered by structure=numeric (4=109).
178 Remote record import using Z39.50 Extended Services and Segments.
180 Fixed bug where updating a database with user-defined attributes
181 could corrupt the register (bad storeKeys).
183 Multi-threaded version.
185 Fixed bug regarding proximity.
187 Documentation updates.
189 Fixed bug in record retrieval module that occured on 64-bit OSF
194 Fixed bug in makefile for WIN32.
196 Fixed bug in configure script - used bash-specific features.
200 Added support for multiple records in one file for filter grs.sgml.
202 Changed record index structure. New layout is incompatible with
203 previous releases. Added setting "recordcompression" to control
204 compression of records. Possible values are "none" (no
205 compression) and bzip2 (compression using libbz2).
207 Added XML transfer syntax support for retrieval of structured records.
208 Schema in CompSpec is recognised in retrieval of structured records.
210 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
211 that fails, the filter reads the file <filt>.flt (regx style filter).
213 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
214 Zebra's configure script automatically attempts to locate Tcl. For
215 manual Tcl configuration use option --with-tclconfig=<path> to specify
216 where Tcl's library files are located.
218 Implemented "compression" of Dictionary and ISAM system. Dictionary
221 Added "tagsysno" directive to zebra.cfg to control under which tag the
222 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
225 Added "tagrank" as above.
227 Changed file naming scheme for register files from <name>.mf.<no> to
230 Implemented "position"-flag for register type (as defined in
231 default.idx). When set to zero no position (or seqence number) is
232 saved in register for each word occurrence, thus saving some register
235 Implemented database mapping. Using mapdb one can specify a database
236 to be mapped to one or more physical databases. Usage:
237 mapdb <fromdb> <todb> ..
239 Added SOIF-filter. Thanks to Peter Valkenburg.
241 For the regx-filter "end element -record" may trigger a mark-of-record
242 if outer level is reached.
244 Tag sets may be typed in the reference to it. From the .abs-file the
245 "tagset" directive takes a third optional integer type for the tag set
246 referenced. From a .tag-file the "include" directive takes a third
247 optional type as well. The old "type" directive in the tag set itself
248 is still recognized but acts as the default type for the tag set.
250 Zebra supports the specification of arbitrary attributes sets, schemas
251 and tag sets, because of the change in YAZ' OID management system.
253 Fixed bug in Sort that caused it NOT to use character mapping as it
256 Zebra now uses GNU configure to generate Makefile(s).
258 Added un-optimised support for left and left/right truncation attributes.
260 Added support for relational operators on text when using RPN queries.
262 Added support for sort specifications in RPN queries. Type 7 specifies
263 'sort' where value 1=ascending, value 2=descending. The use attribute
264 specifies the field criteria as usual. The term specifies priority
265 where 0=first, 1=second, ...
267 Changed the way use attributes are specified in the recordId
270 Maximum number of databases in one Zebra register increased.
272 New setting, databasePath, which specifies that first directory during
273 update traversal is the database name (instead of a fixed one).
275 New setting, explainDatabase, which specifies that databases are
278 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
280 Implemented EXPLAIN database maintenance. Zebra automatically
281 generate - and update CategoryList, TargetInfo, DatabaseInfo,
282 AttributeSetInfo and AttributeDetails records at this stage. The
283 records may be transferred as GRS-1, SUTRS or Explain.
285 Fixed register spec so that colon isn't treated as size separator
286 unless followed by [0-9+-] in order to allow DOS drive specifications.
288 Fixed two bugs in ISAMC system.
290 Changed the way Zebra keeps its maintenance information about attribute
291 sets, available attributes, etc.. Records in "SGML" notation using an
292 EXPLAIN schema is now used when appropriate.
294 Bug fix: Index didn't handle update/insert/delete of the same record
295 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
296 first occurence of a record is considered.
298 Most searches now return correct number of hits.
300 New modular ranking system. Interested programmers are encouraged to
301 inspect rank1.c and improve the algorithm.
303 Bug fix: Lock files weren't removed as they should on NT.
305 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
306 specify a "sort register". Refer to the gils sample records which refer
307 to index type "s" which is specified as "sort" in the default.idx file.
308 Each sort criteria can either be Ascending or Descending and at most
309 three sort elements can be specified.
311 Bug fix: Character mapping didn't work for text files.
315 Simple ranked searches now return correct number of hits.
317 The test option (-s) only makes a read-lock on the index as well
318 as using read-only operations anywhere.
320 Moved towards generic character mapping. Configuration file default.idx
321 specifies character map files for register types w, p, u, etc.
323 Implemented "begin variant" for the sgml.regx - filter.
325 Fixed a few memory leaks.
327 Added support for C++, headers uses extern "C" for public definitions.
329 Bug fix: The show records facility (-s) only displayed information for
330 the first record in a file (and not for every record in the file).
332 Added option "-f <n>" to limit the logging of record operations. After
333 <n> records has been processed no logging is performed (unless errors
336 Bug fix: the compressed ISAM system didn't handle update operations
339 Added setting, "maxResultSetSize", to hold the number of records to
340 save in a result set.
342 Bug fix: Complete phrase did't work for search operations.
344 Bug fix: temporary result sets weren't deleted.
346 Reduced disk space for saved keys (storeKeys = 1).
348 Added optional, physical ANY (key replication)
350 Implemented proximity operator in search.
352 Bug fix: the path name buffers used by file match traversal routines
353 have been extended to support long file names.
355 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
356 configuration file. The resulting register without "storeKeys" is about
357 half the size, and the memory used by zebraidx during phase 2 (merge) is
358 reduced to a minimum.
360 Reworked the way Regexp-2 queries with error tolerance are handled and
361 specified. The documentation has been updated accordingly.
363 Bug fix: Zebrasrv didn't search correctly when queries contained masking
364 characters. This bug was introduced in 1.0a8.
366 Zebrasrv now tag records with the proper database name.
368 New settings, memMax and keyTmpDir.
370 Changed name of setting lockDir (previously called lockPath) and
371 setTmpDir (previously called tempSetPath).
373 Generalized and changed record type specifications. In short, there are:
375 grs.sgml structured, "SGML-like" syntax
376 grs.regx.<filter> structured, Regular expression filter
377 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
378 is the name of an abstract syntax file.
379 Bug fix: Result sets weren't sorted in operations involving boolean
380 operations with "ranked" operands.
384 Added national character-handling subsystem.
388 Small modifications to input filters and profiles.
390 Added support for SOIF syntax (with private OID).
394 Fixed buffer-size problem in indexing.
396 Added compression to temporary files for updating.
398 Added phrase registers.
400 Added dynamic mapping of search attribute to multiple termlists (ANY).
402 Scan support in multiple databases/registers.
404 Configuration settings are case-insensitive and single dash (-)
405 characters are ignored in comparisons.
407 The index processing ignores empty files - warning given.
409 New option to zebraidx (-V) displays version information.
413 Fixed problem in file-update system.
415 Fixed problem in shadow system; register was sometimes corrupted after
420 Fixed problems in the ISAM subsystem. Caused difficulties when updating
423 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
424 the rank and record number.
426 Fixed bug in the isam subsystem - caused a malfunction when accessing
427 words which occurred more than 10000 times.
429 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
432 Server can now run under inetd. Use option -i, and -w <directory> to
433 set working directory to desired location.
435 New zebraidx command: clean - removes temporary shadow files.
437 Fixed bug in ISAM system. Occurred rarely during register updates.
439 Logging during index merge phase is improved. The remaining running
442 Temporary files generated by zebraidx are removed after each run.
444 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
445 when doing scan operations in dictionaries with European characters.
449 A whole slew of updates, to make the first publicized release. Get the doc
454 Memory-problems in ISAM fixed. More blocktypes added to the default setup
455 to increase performance on larger databases.
457 Various minor changes in data management system.
461 A couple of portability-problems resolved.
463 Changed some malloc() to xmalloc().