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