2 New .abs-directive "xpath" that takes one argument: "enable"
3 or "disable" to enable and disable XPATH -indexing. If no "xpath"
4 direcive is found in .abs-file , XPATH-indexing is disabled to ensure
5 backwards compatibility. For missing .abs-files XPATH-indexing is
6 enabled so that such records are searchable.
8 Zebra warns about missing .abs-file only once (for each type).
10 Fixed a bug in file update where already-inserted files could
15 Zebra license changed to GNU GPL.
17 XPATH-like queries used when RPN string attributes are used, eg.
18 @attr 1=/portal/title sometitle
19 @attr 1=/portal/title[@xml:lang=da] danishtitle
20 @attr 1=/portal/title/@xml:lang da
21 @attr 1=//title sometitle
23 Zebra uses UTF-8 internally:
24 1) New setting "encoding" for zebra.cfg that specifies encoding for
25 OCTET terms in queries and record encoding for most transfer syntaxes
26 (except those that use International Strings, such as GRS-1).
27 2) The encoding of International strings is UTF-8 by default. It
28 may be changed by character set negotiation. If character set
29 negotiation is in effect and if records are selected for conversion
30 these'll be converted to the selected character set - thus overriding
31 the encoding setting in zebra.cfg.
32 3) New directive "encoding" in .abs-files. This specifies the external
33 character encoding for files indexed by zebra. However, if records
34 themselves have an XML header that specifies and encoding that'll be used
37 XML filter (-t grs.xml).
39 Multiple registers. New setting in resource 'root' that holds base
40 directory for register(s). A group a databases may be put in separate
41 register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'.
45 Fixes for Digital Unix
47 Implemented hits per term using USR:SearchResult-1.
49 New Zebra API. Locking system re-implemented.
51 --- 1.1.stable 2002/02/20
53 Rank weight can be controlled with attribute type 9. Default
54 value is 34. Recommended values between 1-36.
58 Updated for YAZ version 1.8.
60 Added support for termsets - a result set of terms matching
61 a given query. For @attr 8=<set> creates termset named <set>.
63 Added support for raw retrieval. Element Set Name R forces the
64 text filter which returns the record in its original form.
66 Added numerical sort - triggered by structure=numeric (4=109).
68 Remote record import using Z39.50 Extended Services and Segments.
70 Fixed bug where updating a database with user-defined attributes
71 could corrupt the register (bad storeKeys).
73 Multi-threaded version.
75 Fixed bug regarding proximity.
77 Documentation updates.
79 Fixed bug in record retrieval module that occured on 64-bit OSF
84 Fixed bug in makefile for WIN32.
86 Fixed bug in configure script - used bash-specific features.
90 Added support for multiple records in one file for filter grs.sgml.
92 Changed record index structure. New layout is incompatible with
93 previous releases. Added setting "recordcompression" to control
94 compression of records. Possible values are "none" (no
95 compression) and bzip2 (compression using libbz2).
97 Added XML transfer syntax support for retrieval of structured records.
98 Schema in CompSpec is recognised in retrieval of structured records.
100 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
101 that fails, the filter reads the file <filt>.flt (regx style filter).
103 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
104 Zebra's configure script automatically attempts to locate Tcl. For
105 manual Tcl configuration use option --with-tclconfig=<path> to specify
106 where Tcl's library files are located.
108 Implemented "compression" of Dictionary and ISAM system. Dictionary
111 Added "tagsysno" directive to zebra.cfg to control under which tag the
112 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
115 Added "tagrank" as above.
117 Changed file naming scheme for register files from <name>.mf.<no> to
120 Implemented "position"-flag for register type (as defined in
121 default.idx). When set to zero no position (or seqence number) is
122 saved in register for each word occurrence, thus saving some register
125 Implemented database mapping. Using mapdb one can specify a database
126 to be mapped to one or more physical databases. Usage:
127 mapdb <fromdb> <todb> ..
129 Added SOIF-filter. Thanks to Peter Valkenburg.
131 For the regx-filter "end element -record" may trigger a mark-of-record
132 if outer level is reached.
134 Tag sets may be typed in the reference to it. From the .abs-file the
135 "tagset" directive takes a third optional integer type for the tag set
136 referenced. From a .tag-file the "include" directive takes a third
137 optional type as well. The old "type" directive in the tag set itself
138 is still recognized but acts as the default type for the tag set.
140 Zebra supports the specification of arbitrary attributes sets, schemas
141 and tag sets, because of the change in YAZ' OID management system.
143 Fixed bug in Sort that caused it NOT to use character mapping as it
146 Zebra now uses GNU configure to generate Makefile(s).
148 Added un-optimised support for left and left/right truncation attributes.
150 Added support for relational operators on text when using RPN queries.
152 Added support for sort specifications in RPN queries. Type 7 specifies
153 'sort' where value 1=ascending, value 2=descending. The use attribute
154 specifies the field criteria as usual. The term specifies priority
155 where 0=first, 1=second, ...
157 Changed the way use attributes are specified in the recordId
160 Maximum number of databases in one Zebra register increased.
162 New setting, databasePath, which specifies that first directory during
163 update traversal is the database name (instead of a fixed one).
165 New setting, explainDatabase, which specifies that databases are
168 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
170 Implemented EXPLAIN database maintenance. Zebra automatically
171 generate - and update CategoryList, TargetInfo, DatabaseInfo,
172 AttributeSetInfo and AttributeDetails records at this stage. The
173 records may be transferred as GRS-1, SUTRS or Explain.
175 Fixed register spec so that colon isn't treated as size separator
176 unless followed by [0-9+-] in order to allow DOS drive specifications.
178 Fixed two bugs in ISAMC system.
180 Changed the way Zebra keeps its maintenance information about attribute
181 sets, available attributes, etc.. Records in "SGML" notation using an
182 EXPLAIN schema is now used when appropriate.
184 Bug fix: Index didn't handle update/insert/delete of the same record
185 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
186 first occurence of a record is considered.
188 Most searches now return correct number of hits.
190 New modular ranking system. Interested programmers are encouraged to
191 inspect rank1.c and improve the algorithm.
193 Bug fix: Lock files weren't removed as they should on NT.
195 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
196 specify a "sort register". Refer to the gils sample records which refer
197 to index type "s" which is specified as "sort" in the default.idx file.
198 Each sort criteria can either be Ascending or Descending and at most
199 three sort elements can be specified.
201 Bug fix: Character mapping didn't work for text files.
205 Simple ranked searches now return correct number of hits.
207 The test option (-s) only makes a read-lock on the index as well
208 as using read-only operations anywhere.
210 Moved towards generic character mapping. Configuration file default.idx
211 specifies character map files for register types w, p, u, etc.
213 Implemented "begin variant" for the sgml.regx - filter.
215 Fixed a few memory leaks.
217 Added support for C++, headers uses extern "C" for public definitions.
219 Bug fix: The show records facility (-s) only displayed information for
220 the first record in a file (and not for every record in the file).
222 Added option "-f <n>" to limit the logging of record operations. After
223 <n> records has been processed no logging is performed (unless errors
226 Bug fix: the compressed ISAM system didn't handle update operations
229 Added setting, "maxResultSetSize", to hold the number of records to
230 save in a result set.
232 Bug fix: Complete phrase did't work for search operations.
234 Bug fix: temporary result sets weren't deleted.
236 Reduced disk space for saved keys (storeKeys = 1).
238 Added optional, physical ANY (key replication)
240 Implemented proximity operator in search.
242 Bug fix: the path name buffers used by file match traversal routines
243 have been extended to support long file names.
245 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
246 configuration file. The resulting register without "storeKeys" is about
247 half the size, and the memory used by zebraidx during phase 2 (merge) is
248 reduced to a minimum.
250 Reworked the way Regexp-2 queries with error tolerance are handled and
251 specified. The documentation has been updated accordingly.
253 Bug fix: Zebrasrv didn't search correctly when queries contained masking
254 characters. This bug was introduced in 1.0a8.
256 Zebrasrv now tag records with the proper database name.
258 New settings, memMax and keyTmpDir.
260 Changed name of setting lockDir (previously called lockPath) and
261 setTmpDir (previously called tempSetPath).
263 Generalized and changed record type specifications. In short, there are:
265 grs.sgml structured, "SGML-like" syntax
266 grs.regx.<filter> structured, Regular expression filter
267 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
268 is the name of an abstract syntax file.
269 Bug fix: Result sets weren't sorted in operations involving boolean
270 operations with "ranked" operands.
274 Added national character-handling subsystem.
278 Small modifications to input filters and profiles.
280 Added support for SOIF syntax (with private OID).
284 Fixed buffer-size problem in indexing.
286 Added compression to temporary files for updating.
288 Added phrase registers.
290 Added dynamic mapping of search attribute to multiple termlists (ANY).
292 Scan support in multiple databases/registers.
294 Configuration settings are case-insensitive and single dash (-)
295 characters are ignored in comparisons.
297 The index processing ignores empty files - warning given.
299 New option to zebraidx (-V) displays version information.
303 Fixed problem in file-update system.
305 Fixed problem in shadow system; register was sometimes corrupted after
310 Fixed problems in the ISAM subsystem. Caused difficulties when updating
313 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
314 the rank and record number.
316 Fixed bug in the isam subsystem - caused a malfunction when accessing
317 words which occurred more than 10000 times.
319 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
322 Server can now run under inetd. Use option -i, and -w <directory> to
323 set working directory to desired location.
325 New zebraidx command: clean - removes temporary shadow files.
327 Fixed bug in ISAM system. Occurred rarely during register updates.
329 Logging during index merge phase is improved. The remaining running
332 Temporary files generated by zebraidx are removed after each run.
334 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
335 when doing scan operations in dictionaries with European characters.
339 A whole slew of updates, to make the first publicized release. Get the doc
344 Memory-problems in ISAM fixed. More blocktypes added to the default setup
345 to increase performance on larger databases.
347 Various minor changes in data management system.
351 A couple of portability-problems resolved.
353 Changed some malloc() to xmalloc().