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