2 Fix MARC transfer . MARC fields had wrong data for multiple fields.
4 XML record reader moved from YAZ to Zebra, to make YAZ less
5 dependant on external libraries.
7 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
8 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
9 on systems that doesn't offer iconv.
11 XML record reader supports external system entities.
15 New .abs-directive "xpath" that takes one argument: "enable"
16 or "disable" to enable and disable XPath -indexing. If no "xpath"
17 direcive is found in .abs-file , XPath-indexing is disabled to ensure
18 backwards compatibility. For missing .abs-files XPath-indexing is
19 enabled so that such records are searchable.
21 Zebra warns about missing .abs-file only once (for each type).
23 Fixed a bug in file update where already-inserted files could
28 Zebra license changed to GNU GPL.
30 XPath-like queries used when RPN string attributes are used, eg.
31 @attr 1=/portal/title sometitle
32 @attr 1=/portal/title[@xml:lang=da] danishtitle
33 @attr 1=/portal/title/@xml:lang da
34 @attr 1=//title sometitle
36 Zebra uses UTF-8 internally:
37 1) New setting "encoding" for zebra.cfg that specifies encoding for
38 OCTET terms in queries and record encoding for most transfer syntaxes
39 (except those that use International Strings, such as GRS-1).
40 2) The encoding of International strings is UTF-8 by default. It
41 may be changed by character set negotiation. If character set
42 negotiation is in effect and if records are selected for conversion
43 these'll be converted to the selected character set - thus overriding
44 the encoding setting in zebra.cfg.
45 3) New directive "encoding" in .abs-files. This specifies the external
46 character encoding for files indexed by zebra. However, if records
47 themselves have an XML header that specifies and encoding that'll be used
50 XML filter (-t grs.xml).
52 Multiple registers. New setting in resource 'root' that holds base
53 directory for register(s). A group a databases may be put in separate
54 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
58 Fixes for Digital Unix
60 Implemented hits per term using USR:SearchResult-1.
62 New Zebra API. Locking system re-implemented.
64 --- 1.1.stable 2002/02/20
66 Rank weight can be controlled with attribute type 9. Default
67 value is 34. Recommended values between 1-36.
71 Updated for YAZ version 1.8.
73 Added support for termsets - a result set of terms matching
74 a given query. For @attr 8=<set> creates termset named <set>.
76 Added support for raw retrieval. Element Set Name R forces the
77 text filter which returns the record in its original form.
79 Added numerical sort - triggered by structure=numeric (4=109).
81 Remote record import using Z39.50 Extended Services and Segments.
83 Fixed bug where updating a database with user-defined attributes
84 could corrupt the register (bad storeKeys).
86 Multi-threaded version.
88 Fixed bug regarding proximity.
90 Documentation updates.
92 Fixed bug in record retrieval module that occured on 64-bit OSF
97 Fixed bug in makefile for WIN32.
99 Fixed bug in configure script - used bash-specific features.
103 Added support for multiple records in one file for filter grs.sgml.
105 Changed record index structure. New layout is incompatible with
106 previous releases. Added setting "recordcompression" to control
107 compression of records. Possible values are "none" (no
108 compression) and bzip2 (compression using libbz2).
110 Added XML transfer syntax support for retrieval of structured records.
111 Schema in CompSpec is recognised in retrieval of structured records.
113 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
114 that fails, the filter reads the file <filt>.flt (regx style filter).
116 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
117 Zebra's configure script automatically attempts to locate Tcl. For
118 manual Tcl configuration use option --with-tclconfig=<path> to specify
119 where Tcl's library files are located.
121 Implemented "compression" of Dictionary and ISAM system. Dictionary
124 Added "tagsysno" directive to zebra.cfg to control under which tag the
125 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
128 Added "tagrank" as above.
130 Changed file naming scheme for register files from <name>.mf.<no> to
133 Implemented "position"-flag for register type (as defined in
134 default.idx). When set to zero no position (or seqence number) is
135 saved in register for each word occurrence, thus saving some register
138 Implemented database mapping. Using mapdb one can specify a database
139 to be mapped to one or more physical databases. Usage:
140 mapdb <fromdb> <todb> ..
142 Added SOIF-filter. Thanks to Peter Valkenburg.
144 For the regx-filter "end element -record" may trigger a mark-of-record
145 if outer level is reached.
147 Tag sets may be typed in the reference to it. From the .abs-file the
148 "tagset" directive takes a third optional integer type for the tag set
149 referenced. From a .tag-file the "include" directive takes a third
150 optional type as well. The old "type" directive in the tag set itself
151 is still recognized but acts as the default type for the tag set.
153 Zebra supports the specification of arbitrary attributes sets, schemas
154 and tag sets, because of the change in YAZ' OID management system.
156 Fixed bug in Sort that caused it NOT to use character mapping as it
159 Zebra now uses GNU configure to generate Makefile(s).
161 Added un-optimised support for left and left/right truncation attributes.
163 Added support for relational operators on text when using RPN queries.
165 Added support for sort specifications in RPN queries. Type 7 specifies
166 'sort' where value 1=ascending, value 2=descending. The use attribute
167 specifies the field criteria as usual. The term specifies priority
168 where 0=first, 1=second, ...
170 Changed the way use attributes are specified in the recordId
173 Maximum number of databases in one Zebra register increased.
175 New setting, databasePath, which specifies that first directory during
176 update traversal is the database name (instead of a fixed one).
178 New setting, explainDatabase, which specifies that databases are
181 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
183 Implemented EXPLAIN database maintenance. Zebra automatically
184 generate - and update CategoryList, TargetInfo, DatabaseInfo,
185 AttributeSetInfo and AttributeDetails records at this stage. The
186 records may be transferred as GRS-1, SUTRS or Explain.
188 Fixed register spec so that colon isn't treated as size separator
189 unless followed by [0-9+-] in order to allow DOS drive specifications.
191 Fixed two bugs in ISAMC system.
193 Changed the way Zebra keeps its maintenance information about attribute
194 sets, available attributes, etc.. Records in "SGML" notation using an
195 EXPLAIN schema is now used when appropriate.
197 Bug fix: Index didn't handle update/insert/delete of the same record
198 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
199 first occurence of a record is considered.
201 Most searches now return correct number of hits.
203 New modular ranking system. Interested programmers are encouraged to
204 inspect rank1.c and improve the algorithm.
206 Bug fix: Lock files weren't removed as they should on NT.
208 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
209 specify a "sort register". Refer to the gils sample records which refer
210 to index type "s" which is specified as "sort" in the default.idx file.
211 Each sort criteria can either be Ascending or Descending and at most
212 three sort elements can be specified.
214 Bug fix: Character mapping didn't work for text files.
218 Simple ranked searches now return correct number of hits.
220 The test option (-s) only makes a read-lock on the index as well
221 as using read-only operations anywhere.
223 Moved towards generic character mapping. Configuration file default.idx
224 specifies character map files for register types w, p, u, etc.
226 Implemented "begin variant" for the sgml.regx - filter.
228 Fixed a few memory leaks.
230 Added support for C++, headers uses extern "C" for public definitions.
232 Bug fix: The show records facility (-s) only displayed information for
233 the first record in a file (and not for every record in the file).
235 Added option "-f <n>" to limit the logging of record operations. After
236 <n> records has been processed no logging is performed (unless errors
239 Bug fix: the compressed ISAM system didn't handle update operations
242 Added setting, "maxResultSetSize", to hold the number of records to
243 save in a result set.
245 Bug fix: Complete phrase did't work for search operations.
247 Bug fix: temporary result sets weren't deleted.
249 Reduced disk space for saved keys (storeKeys = 1).
251 Added optional, physical ANY (key replication)
253 Implemented proximity operator in search.
255 Bug fix: the path name buffers used by file match traversal routines
256 have been extended to support long file names.
258 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
259 configuration file. The resulting register without "storeKeys" is about
260 half the size, and the memory used by zebraidx during phase 2 (merge) is
261 reduced to a minimum.
263 Reworked the way Regexp-2 queries with error tolerance are handled and
264 specified. The documentation has been updated accordingly.
266 Bug fix: Zebrasrv didn't search correctly when queries contained masking
267 characters. This bug was introduced in 1.0a8.
269 Zebrasrv now tag records with the proper database name.
271 New settings, memMax and keyTmpDir.
273 Changed name of setting lockDir (previously called lockPath) and
274 setTmpDir (previously called tempSetPath).
276 Generalized and changed record type specifications. In short, there are:
278 grs.sgml structured, "SGML-like" syntax
279 grs.regx.<filter> structured, Regular expression filter
280 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
281 is the name of an abstract syntax file.
282 Bug fix: Result sets weren't sorted in operations involving boolean
283 operations with "ranked" operands.
287 Added national character-handling subsystem.
291 Small modifications to input filters and profiles.
293 Added support for SOIF syntax (with private OID).
297 Fixed buffer-size problem in indexing.
299 Added compression to temporary files for updating.
301 Added phrase registers.
303 Added dynamic mapping of search attribute to multiple termlists (ANY).
305 Scan support in multiple databases/registers.
307 Configuration settings are case-insensitive and single dash (-)
308 characters are ignored in comparisons.
310 The index processing ignores empty files - warning given.
312 New option to zebraidx (-V) displays version information.
316 Fixed problem in file-update system.
318 Fixed problem in shadow system; register was sometimes corrupted after
323 Fixed problems in the ISAM subsystem. Caused difficulties when updating
326 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
327 the rank and record number.
329 Fixed bug in the isam subsystem - caused a malfunction when accessing
330 words which occurred more than 10000 times.
332 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
335 Server can now run under inetd. Use option -i, and -w <directory> to
336 set working directory to desired location.
338 New zebraidx command: clean - removes temporary shadow files.
340 Fixed bug in ISAM system. Occurred rarely during register updates.
342 Logging during index merge phase is improved. The remaining running
345 Temporary files generated by zebraidx are removed after each run.
347 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
348 when doing scan operations in dictionaries with European characters.
352 A whole slew of updates, to make the first publicized release. Get the doc
357 Memory-problems in ISAM fixed. More blocktypes added to the default setup
358 to increase performance on larger databases.
360 Various minor changes in data management system.
364 A couple of portability-problems resolved.
366 Changed some malloc() to xmalloc().