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