4 Updated for newer version of YAZ (introduction of string schema).
6 Directory examples/zthes now part of distribution (was missing
9 New .abs directive, systag, that control where to put retrieval
10 information. The directive takes two arguments: system tag, element name.
11 System tag is one of : rank, sysno, size.
15 Perl Filter and Perl API. By Peter Popovics.
17 For zebra.cfg, if no profilePath is specified, directory
18 (prefix)/share/idzebra/tab
21 Zebra Examples in examples . Zebra tests in test.
23 Bug fix: sort index was not properly modified on
24 record updates/deletes.
26 Fix handling of character entities for sgml filter.
28 Move data1 to Zebra (used to be part of YAZ).
32 Fix character encoding of scan response terms.
34 Fix character decoding of scan request terms.
36 Fix ESpec handling (requires YAZ 1.9.1)
38 Fix searches for complete fields.
42 When name zebra is used in a filename or directory 'idzebra' is used
43 instead to avoid confusion with GNU zebra (routing software).
45 Zebra server stops with a fatal error if config file cannot be read.
47 New config setting, followLinks, that controls whether update of files
48 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
49 By default symbolic links are followed.
51 Fix MARC transfer . MARC fields had wrong data for multiple fields.
53 XML record reader moved from YAZ to Zebra, to make YAZ less
54 dependant on external libraries.
56 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
57 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
58 on systems that doesn't offer iconv.
60 XML record reader supports external system entities.
64 New .abs-directive "xpath" that takes one argument: "enable"
65 or "disable" to enable and disable XPath -indexing. If no "xpath"
66 direcive is found in .abs-file , XPath-indexing is disabled to ensure
67 backwards compatibility. For missing .abs-files XPath-indexing is
68 enabled so that such records are searchable.
70 Zebra warns about missing .abs-file only once (for each type).
72 Fixed a bug in file update where already-inserted files could
77 Zebra license changed to GNU GPL.
79 XPath-like queries used when RPN string attributes are used, eg.
80 @attr 1=/portal/title sometitle
81 @attr 1=/portal/title[@xml:lang=da] danishtitle
82 @attr 1=/portal/title/@xml:lang da
83 @attr 1=//title sometitle
85 Zebra uses UTF-8 internally:
86 1) New setting "encoding" for zebra.cfg that specifies encoding for
87 OCTET terms in queries and record encoding for most transfer syntaxes
88 (except those that use International Strings, such as GRS-1).
89 2) The encoding of International strings is UTF-8 by default. It
90 may be changed by character set negotiation. If character set
91 negotiation is in effect and if records are selected for conversion
92 these'll be converted to the selected character set - thus overriding
93 the encoding setting in zebra.cfg.
94 3) New directive "encoding" in .abs-files. This specifies the external
95 character encoding for files indexed by zebra. However, if records
96 themselves have an XML header that specifies and encoding that'll be used
99 XML filter (-t grs.xml).
101 Multiple registers. New setting in resource 'root' that holds base
102 directory for register(s). A group a databases may be put in separate
103 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
107 Fixes for Digital Unix
109 Implemented hits per term using USR:SearchResult-1.
111 New Zebra API. Locking system re-implemented.
113 --- 1.1.stable 2002/02/20
115 Rank weight can be controlled with attribute type 9. Default
116 value is 34. Recommended values between 1-36.
120 Updated for YAZ version 1.8.
122 Added support for termsets - a result set of terms matching
123 a given query. For @attr 8=<set> creates termset named <set>.
125 Added support for raw retrieval. Element Set Name R forces the
126 text filter which returns the record in its original form.
128 Added numerical sort - triggered by structure=numeric (4=109).
130 Remote record import using Z39.50 Extended Services and Segments.
132 Fixed bug where updating a database with user-defined attributes
133 could corrupt the register (bad storeKeys).
135 Multi-threaded version.
137 Fixed bug regarding proximity.
139 Documentation updates.
141 Fixed bug in record retrieval module that occured on 64-bit OSF
146 Fixed bug in makefile for WIN32.
148 Fixed bug in configure script - used bash-specific features.
152 Added support for multiple records in one file for filter grs.sgml.
154 Changed record index structure. New layout is incompatible with
155 previous releases. Added setting "recordcompression" to control
156 compression of records. Possible values are "none" (no
157 compression) and bzip2 (compression using libbz2).
159 Added XML transfer syntax support for retrieval of structured records.
160 Schema in CompSpec is recognised in retrieval of structured records.
162 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
163 that fails, the filter reads the file <filt>.flt (regx style filter).
165 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
166 Zebra's configure script automatically attempts to locate Tcl. For
167 manual Tcl configuration use option --with-tclconfig=<path> to specify
168 where Tcl's library files are located.
170 Implemented "compression" of Dictionary and ISAM system. Dictionary
173 Added "tagsysno" directive to zebra.cfg to control under which tag the
174 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
177 Added "tagrank" as above.
179 Changed file naming scheme for register files from <name>.mf.<no> to
182 Implemented "position"-flag for register type (as defined in
183 default.idx). When set to zero no position (or seqence number) is
184 saved in register for each word occurrence, thus saving some register
187 Implemented database mapping. Using mapdb one can specify a database
188 to be mapped to one or more physical databases. Usage:
189 mapdb <fromdb> <todb> ..
191 Added SOIF-filter. Thanks to Peter Valkenburg.
193 For the regx-filter "end element -record" may trigger a mark-of-record
194 if outer level is reached.
196 Tag sets may be typed in the reference to it. From the .abs-file the
197 "tagset" directive takes a third optional integer type for the tag set
198 referenced. From a .tag-file the "include" directive takes a third
199 optional type as well. The old "type" directive in the tag set itself
200 is still recognized but acts as the default type for the tag set.
202 Zebra supports the specification of arbitrary attributes sets, schemas
203 and tag sets, because of the change in YAZ' OID management system.
205 Fixed bug in Sort that caused it NOT to use character mapping as it
208 Zebra now uses GNU configure to generate Makefile(s).
210 Added un-optimised support for left and left/right truncation attributes.
212 Added support for relational operators on text when using RPN queries.
214 Added support for sort specifications in RPN queries. Type 7 specifies
215 'sort' where value 1=ascending, value 2=descending. The use attribute
216 specifies the field criteria as usual. The term specifies priority
217 where 0=first, 1=second, ...
219 Changed the way use attributes are specified in the recordId
222 Maximum number of databases in one Zebra register increased.
224 New setting, databasePath, which specifies that first directory during
225 update traversal is the database name (instead of a fixed one).
227 New setting, explainDatabase, which specifies that databases are
230 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
232 Implemented EXPLAIN database maintenance. Zebra automatically
233 generate - and update CategoryList, TargetInfo, DatabaseInfo,
234 AttributeSetInfo and AttributeDetails records at this stage. The
235 records may be transferred as GRS-1, SUTRS or Explain.
237 Fixed register spec so that colon isn't treated as size separator
238 unless followed by [0-9+-] in order to allow DOS drive specifications.
240 Fixed two bugs in ISAMC system.
242 Changed the way Zebra keeps its maintenance information about attribute
243 sets, available attributes, etc.. Records in "SGML" notation using an
244 EXPLAIN schema is now used when appropriate.
246 Bug fix: Index didn't handle update/insert/delete of the same record
247 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
248 first occurence of a record is considered.
250 Most searches now return correct number of hits.
252 New modular ranking system. Interested programmers are encouraged to
253 inspect rank1.c and improve the algorithm.
255 Bug fix: Lock files weren't removed as they should on NT.
257 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
258 specify a "sort register". Refer to the gils sample records which refer
259 to index type "s" which is specified as "sort" in the default.idx file.
260 Each sort criteria can either be Ascending or Descending and at most
261 three sort elements can be specified.
263 Bug fix: Character mapping didn't work for text files.
267 Simple ranked searches now return correct number of hits.
269 The test option (-s) only makes a read-lock on the index as well
270 as using read-only operations anywhere.
272 Moved towards generic character mapping. Configuration file default.idx
273 specifies character map files for register types w, p, u, etc.
275 Implemented "begin variant" for the sgml.regx - filter.
277 Fixed a few memory leaks.
279 Added support for C++, headers uses extern "C" for public definitions.
281 Bug fix: The show records facility (-s) only displayed information for
282 the first record in a file (and not for every record in the file).
284 Added option "-f <n>" to limit the logging of record operations. After
285 <n> records has been processed no logging is performed (unless errors
288 Bug fix: the compressed ISAM system didn't handle update operations
291 Added setting, "maxResultSetSize", to hold the number of records to
292 save in a result set.
294 Bug fix: Complete phrase did't work for search operations.
296 Bug fix: temporary result sets weren't deleted.
298 Reduced disk space for saved keys (storeKeys = 1).
300 Added optional, physical ANY (key replication)
302 Implemented proximity operator in search.
304 Bug fix: the path name buffers used by file match traversal routines
305 have been extended to support long file names.
307 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
308 configuration file. The resulting register without "storeKeys" is about
309 half the size, and the memory used by zebraidx during phase 2 (merge) is
310 reduced to a minimum.
312 Reworked the way Regexp-2 queries with error tolerance are handled and
313 specified. The documentation has been updated accordingly.
315 Bug fix: Zebrasrv didn't search correctly when queries contained masking
316 characters. This bug was introduced in 1.0a8.
318 Zebrasrv now tag records with the proper database name.
320 New settings, memMax and keyTmpDir.
322 Changed name of setting lockDir (previously called lockPath) and
323 setTmpDir (previously called tempSetPath).
325 Generalized and changed record type specifications. In short, there are:
327 grs.sgml structured, "SGML-like" syntax
328 grs.regx.<filter> structured, Regular expression filter
329 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
330 is the name of an abstract syntax file.
331 Bug fix: Result sets weren't sorted in operations involving boolean
332 operations with "ranked" operands.
336 Added national character-handling subsystem.
340 Small modifications to input filters and profiles.
342 Added support for SOIF syntax (with private OID).
346 Fixed buffer-size problem in indexing.
348 Added compression to temporary files for updating.
350 Added phrase registers.
352 Added dynamic mapping of search attribute to multiple termlists (ANY).
354 Scan support in multiple databases/registers.
356 Configuration settings are case-insensitive and single dash (-)
357 characters are ignored in comparisons.
359 The index processing ignores empty files - warning given.
361 New option to zebraidx (-V) displays version information.
365 Fixed problem in file-update system.
367 Fixed problem in shadow system; register was sometimes corrupted after
372 Fixed problems in the ISAM subsystem. Caused difficulties when updating
375 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
376 the rank and record number.
378 Fixed bug in the isam subsystem - caused a malfunction when accessing
379 words which occurred more than 10000 times.
381 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
384 Server can now run under inetd. Use option -i, and -w <directory> to
385 set working directory to desired location.
387 New zebraidx command: clean - removes temporary shadow files.
389 Fixed bug in ISAM system. Occurred rarely during register updates.
391 Logging during index merge phase is improved. The remaining running
394 Temporary files generated by zebraidx are removed after each run.
396 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
397 when doing scan operations in dictionaries with European characters.
401 A whole slew of updates, to make the first publicized release. Get the doc
406 Memory-problems in ISAM fixed. More blocktypes added to the default setup
407 to increase performance on larger databases.
409 Various minor changes in data management system.
413 A couple of portability-problems resolved.
415 Changed some malloc() to xmalloc().