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