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