2 New .abs directive, systag, that control where to put retrieval
3 information. The directive takes two arguments: system tag, element name.
4 System tag is one of : rank, sysno, size.
8 Perl Filter and Perl API. By Peter Popovics.
10 For zebra.cfg, if no profilePath is specified, directory
11 (prefix)/share/idzebra/tab
14 Zebra Examples in examples . Zebra tests in test.
16 Bug fix: sort index was not properly modified on
17 record updates/deletes.
19 Fix handling of character entities for sgml filter.
21 Move data1 to Zebra (used to be part of YAZ).
25 Fix character encoding of scan response terms.
27 Fix character decoding of scan request terms.
29 Fix ESpec handling (requires YAZ 1.9.1)
31 Fix searches for complete fields.
35 When name zebra is used in a filename or directory 'idzebra' is used
36 instead to avoid confusion with GNU zebra (routing software).
38 Zebra server stops with a fatal error if config file cannot be read.
40 New config setting, followLinks, that controls whether update of files
41 should follow symbolic. Set it to 1 (for enable) or 0 (to disable).
42 By default symbolic links are followed.
44 Fix MARC transfer . MARC fields had wrong data for multiple fields.
46 XML record reader moved from YAZ to Zebra, to make YAZ less
47 dependant on external libraries.
49 Zebra uses yaz_iconv which is mini iconv library supporting UTF-8,
50 UCS4, ISO-8859-1. This means that Zebra does UNICODE even
51 on systems that doesn't offer iconv.
53 XML record reader supports external system entities.
57 New .abs-directive "xpath" that takes one argument: "enable"
58 or "disable" to enable and disable XPath -indexing. If no "xpath"
59 direcive is found in .abs-file , XPath-indexing is disabled to ensure
60 backwards compatibility. For missing .abs-files XPath-indexing is
61 enabled so that such records are searchable.
63 Zebra warns about missing .abs-file only once (for each type).
65 Fixed a bug in file update where already-inserted files could
70 Zebra license changed to GNU GPL.
72 XPath-like queries used when RPN string attributes are used, eg.
73 @attr 1=/portal/title sometitle
74 @attr 1=/portal/title[@xml:lang=da] danishtitle
75 @attr 1=/portal/title/@xml:lang da
76 @attr 1=//title sometitle
78 Zebra uses UTF-8 internally:
79 1) New setting "encoding" for zebra.cfg that specifies encoding for
80 OCTET terms in queries and record encoding for most transfer syntaxes
81 (except those that use International Strings, such as GRS-1).
82 2) The encoding of International strings is UTF-8 by default. It
83 may be changed by character set negotiation. If character set
84 negotiation is in effect and if records are selected for conversion
85 these'll be converted to the selected character set - thus overriding
86 the encoding setting in zebra.cfg.
87 3) New directive "encoding" in .abs-files. This specifies the external
88 character encoding for files indexed by zebra. However, if records
89 themselves have an XML header that specifies and encoding that'll be used
92 XML filter (-t grs.xml).
94 Multiple registers. New setting in resource 'root' that holds base
95 directory for register(s). A group a databases may be put in separate
96 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
100 Fixes for Digital Unix
102 Implemented hits per term using USR:SearchResult-1.
104 New Zebra API. Locking system re-implemented.
106 --- 1.1.stable 2002/02/20
108 Rank weight can be controlled with attribute type 9. Default
109 value is 34. Recommended values between 1-36.
113 Updated for YAZ version 1.8.
115 Added support for termsets - a result set of terms matching
116 a given query. For @attr 8=<set> creates termset named <set>.
118 Added support for raw retrieval. Element Set Name R forces the
119 text filter which returns the record in its original form.
121 Added numerical sort - triggered by structure=numeric (4=109).
123 Remote record import using Z39.50 Extended Services and Segments.
125 Fixed bug where updating a database with user-defined attributes
126 could corrupt the register (bad storeKeys).
128 Multi-threaded version.
130 Fixed bug regarding proximity.
132 Documentation updates.
134 Fixed bug in record retrieval module that occured on 64-bit OSF
139 Fixed bug in makefile for WIN32.
141 Fixed bug in configure script - used bash-specific features.
145 Added support for multiple records in one file for filter grs.sgml.
147 Changed record index structure. New layout is incompatible with
148 previous releases. Added setting "recordcompression" to control
149 compression of records. Possible values are "none" (no
150 compression) and bzip2 (compression using libbz2).
152 Added XML transfer syntax support for retrieval of structured records.
153 Schema in CompSpec is recognised in retrieval of structured records.
155 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
156 that fails, the filter reads the file <filt>.flt (regx style filter).
158 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
159 Zebra's configure script automatically attempts to locate Tcl. For
160 manual Tcl configuration use option --with-tclconfig=<path> to specify
161 where Tcl's library files are located.
163 Implemented "compression" of Dictionary and ISAM system. Dictionary
166 Added "tagsysno" directive to zebra.cfg to control under which tag the
167 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
170 Added "tagrank" as above.
172 Changed file naming scheme for register files from <name>.mf.<no> to
175 Implemented "position"-flag for register type (as defined in
176 default.idx). When set to zero no position (or seqence number) is
177 saved in register for each word occurrence, thus saving some register
180 Implemented database mapping. Using mapdb one can specify a database
181 to be mapped to one or more physical databases. Usage:
182 mapdb <fromdb> <todb> ..
184 Added SOIF-filter. Thanks to Peter Valkenburg.
186 For the regx-filter "end element -record" may trigger a mark-of-record
187 if outer level is reached.
189 Tag sets may be typed in the reference to it. From the .abs-file the
190 "tagset" directive takes a third optional integer type for the tag set
191 referenced. From a .tag-file the "include" directive takes a third
192 optional type as well. The old "type" directive in the tag set itself
193 is still recognized but acts as the default type for the tag set.
195 Zebra supports the specification of arbitrary attributes sets, schemas
196 and tag sets, because of the change in YAZ' OID management system.
198 Fixed bug in Sort that caused it NOT to use character mapping as it
201 Zebra now uses GNU configure to generate Makefile(s).
203 Added un-optimised support for left and left/right truncation attributes.
205 Added support for relational operators on text when using RPN queries.
207 Added support for sort specifications in RPN queries. Type 7 specifies
208 'sort' where value 1=ascending, value 2=descending. The use attribute
209 specifies the field criteria as usual. The term specifies priority
210 where 0=first, 1=second, ...
212 Changed the way use attributes are specified in the recordId
215 Maximum number of databases in one Zebra register increased.
217 New setting, databasePath, which specifies that first directory during
218 update traversal is the database name (instead of a fixed one).
220 New setting, explainDatabase, which specifies that databases are
223 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
225 Implemented EXPLAIN database maintenance. Zebra automatically
226 generate - and update CategoryList, TargetInfo, DatabaseInfo,
227 AttributeSetInfo and AttributeDetails records at this stage. The
228 records may be transferred as GRS-1, SUTRS or Explain.
230 Fixed register spec so that colon isn't treated as size separator
231 unless followed by [0-9+-] in order to allow DOS drive specifications.
233 Fixed two bugs in ISAMC system.
235 Changed the way Zebra keeps its maintenance information about attribute
236 sets, available attributes, etc.. Records in "SGML" notation using an
237 EXPLAIN schema is now used when appropriate.
239 Bug fix: Index didn't handle update/insert/delete of the same record
240 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
241 first occurence of a record is considered.
243 Most searches now return correct number of hits.
245 New modular ranking system. Interested programmers are encouraged to
246 inspect rank1.c and improve the algorithm.
248 Bug fix: Lock files weren't removed as they should on NT.
250 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
251 specify a "sort register". Refer to the gils sample records which refer
252 to index type "s" which is specified as "sort" in the default.idx file.
253 Each sort criteria can either be Ascending or Descending and at most
254 three sort elements can be specified.
256 Bug fix: Character mapping didn't work for text files.
260 Simple ranked searches now return correct number of hits.
262 The test option (-s) only makes a read-lock on the index as well
263 as using read-only operations anywhere.
265 Moved towards generic character mapping. Configuration file default.idx
266 specifies character map files for register types w, p, u, etc.
268 Implemented "begin variant" for the sgml.regx - filter.
270 Fixed a few memory leaks.
272 Added support for C++, headers uses extern "C" for public definitions.
274 Bug fix: The show records facility (-s) only displayed information for
275 the first record in a file (and not for every record in the file).
277 Added option "-f <n>" to limit the logging of record operations. After
278 <n> records has been processed no logging is performed (unless errors
281 Bug fix: the compressed ISAM system didn't handle update operations
284 Added setting, "maxResultSetSize", to hold the number of records to
285 save in a result set.
287 Bug fix: Complete phrase did't work for search operations.
289 Bug fix: temporary result sets weren't deleted.
291 Reduced disk space for saved keys (storeKeys = 1).
293 Added optional, physical ANY (key replication)
295 Implemented proximity operator in search.
297 Bug fix: the path name buffers used by file match traversal routines
298 have been extended to support long file names.
300 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
301 configuration file. The resulting register without "storeKeys" is about
302 half the size, and the memory used by zebraidx during phase 2 (merge) is
303 reduced to a minimum.
305 Reworked the way Regexp-2 queries with error tolerance are handled and
306 specified. The documentation has been updated accordingly.
308 Bug fix: Zebrasrv didn't search correctly when queries contained masking
309 characters. This bug was introduced in 1.0a8.
311 Zebrasrv now tag records with the proper database name.
313 New settings, memMax and keyTmpDir.
315 Changed name of setting lockDir (previously called lockPath) and
316 setTmpDir (previously called tempSetPath).
318 Generalized and changed record type specifications. In short, there are:
320 grs.sgml structured, "SGML-like" syntax
321 grs.regx.<filter> structured, Regular expression filter
322 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
323 is the name of an abstract syntax file.
324 Bug fix: Result sets weren't sorted in operations involving boolean
325 operations with "ranked" operands.
329 Added national character-handling subsystem.
333 Small modifications to input filters and profiles.
335 Added support for SOIF syntax (with private OID).
339 Fixed buffer-size problem in indexing.
341 Added compression to temporary files for updating.
343 Added phrase registers.
345 Added dynamic mapping of search attribute to multiple termlists (ANY).
347 Scan support in multiple databases/registers.
349 Configuration settings are case-insensitive and single dash (-)
350 characters are ignored in comparisons.
352 The index processing ignores empty files - warning given.
354 New option to zebraidx (-V) displays version information.
358 Fixed problem in file-update system.
360 Fixed problem in shadow system; register was sometimes corrupted after
365 Fixed problems in the ISAM subsystem. Caused difficulties when updating
368 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
369 the rank and record number.
371 Fixed bug in the isam subsystem - caused a malfunction when accessing
372 words which occurred more than 10000 times.
374 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
377 Server can now run under inetd. Use option -i, and -w <directory> to
378 set working directory to desired location.
380 New zebraidx command: clean - removes temporary shadow files.
382 Fixed bug in ISAM system. Occurred rarely during register updates.
384 Logging during index merge phase is improved. The remaining running
387 Temporary files generated by zebraidx are removed after each run.
389 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
390 when doing scan operations in dictionaries with European characters.
394 A whole slew of updates, to make the first publicized release. Get the doc
399 Memory-problems in ISAM fixed. More blocktypes added to the default setup
400 to increase performance on larger databases.
402 Various minor changes in data management system.
406 A couple of portability-problems resolved.
408 Changed some malloc() to xmalloc().