1 Added support for raw retrieval. Element Set Name R forces the
2 text filter which returns the record in its original form.
4 Added numerical sort - triggered by structure=numeric (4=109).
6 Remote record import using Z39.50 Extended Services and Segments.
8 Fixed bug where updating a database with user-defined attributes
9 could corrupt the register (bad storeKeys).
11 Multi-threaded version.
13 Fixed bug regarding proximity.
15 Documentation updates.
17 Fixed bug in record retrieval module that occured on 64-bit OSF
22 Fixed bug in makefile for WIN32.
24 Fixed bug in configure script - used bash-specific features.
28 The software was split in two products Zebra (for testing,
29 non-profit use) and the commercial product Z'mbol. Zebra no
30 longer supports INDEX UPDATES, i.e. zebraidx should be invoked only
31 once for each register. Refer to LICENSE.zebra for more info.
33 Added support for multiple records in one file for filter grs.sgml.
35 Changed record index structure. New layout is incompatible with
36 previous releases. Added setting "recordcompression" to control
37 compression of records. Possible values are "none" (no
38 compression) and bzip2 (compression using libbz2).
40 Added XML transfer syntax support for retrieval of structured records.
41 Schema in CompSpec is recognised in retrieval of structured records.
43 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
44 that fails, the filter reads the file <filt>.flt (regx style filter).
46 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
47 Zebra's configure script automatically attempts to locate Tcl. For
48 manual Tcl configuration use option --with-tclconfig=<path> to specify
49 where Tcl's library files are located.
51 Implemented "compression" of Dictionary and ISAM system. Dictionary
54 Added "tagsysno" directive to zebra.cfg to control under which tag the
55 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
58 Added "tagrank" as above.
60 Changed file naming scheme for register files from <name>.mf.<no> to
63 Implemented "position"-flag for register type (as defined in
64 default.idx). When set to zero no position (or seqence number) is
65 saved in register for each word occurrence, thus saving some register
68 Implemented database mapping. Using mapdb one can specify a database
69 to be mapped to one or more physical databases. Usage:
70 mapdb <fromdb> <todb> ..
72 Added SOIF-filter. Thanks to Peter Valkenburg.
74 For the regx-filter "end element -record" may trigger a mark-of-record
75 if outer level is reached.
77 Tag sets may be typed in the reference to it. From the .abs-file the
78 "tagset" directive takes a third optional integer type for the tag set
79 referenced. From a .tag-file the "include" directive takes a third
80 optional type as well. The old "type" directive in the tag set itself
81 is still recognized but acts as the default type for the tag set.
83 Zebra supports the specification of arbitrary attributes sets, schemas
84 and tag sets, because of the change in YAZ' OID management system.
86 Fixed bug in Sort that caused it NOT to use character mapping as it
89 Zebra now uses GNU configure to generate Makefile(s).
91 Added un-optimised support for left and left/right truncation attributes.
93 Added support for relational operators on text when using RPN queries.
95 Added support for sort specifications in RPN queries. Type 7 specifies
96 'sort' where value 1=ascending, value 2=descending. The use attribute
97 specifies the field criteria as usual. The term specifies priority
98 where 0=first, 1=second, ...
100 Changed the way use attributes are specified in the recordId
103 Maximum number of databases in one Zebra register increased.
105 New setting, databasePath, which specifies that first directory during
106 update traversal is the database name (instead of a fixed one).
108 New setting, explainDatabase, which specifies that databases are
111 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
113 Implemented EXPLAIN database maintenance. Zebra automatically
114 generate - and update CategoryList, TargetInfo, DatabaseInfo,
115 AttributeSetInfo and AttributeDetails records at this stage. The
116 records may be transferred as GRS-1, SUTRS or Explain.
118 Fixed register spec so that colon isn't treated as size separator
119 unless followed by [0-9+-] in order to allow DOS drive specifications.
121 Fixed two bugs in ISAMC system.
123 Changed the way Zebra keeps its maintenance information about attribute
124 sets, available attributes, etc.. Records in "SGML" notation using an
125 EXPLAIN schema is now used when appropriate.
127 Bug fix: Index didn't handle update/insert/delete of the same record
128 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
129 first occurence of a record is considered.
131 Most searches now return correct number of hits.
133 New modular ranking system. Interested programmers are encouraged to
134 inspect rank1.c and improve the algorithm.
136 Bug fix: Lock files weren't removed as they should on NT.
138 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
139 specify a "sort register". Refer to the gils sample records which refer
140 to index type "s" which is specified as "sort" in the default.idx file.
141 Each sort criteria can either be Ascending or Descending and at most
142 three sort elements can be specified.
144 Bug fix: Character mapping didn't work for text files.
148 Simple ranked searches now return correct number of hits.
150 The test option (-s) only makes a read-lock on the index as well
151 as using read-only operations anywhere.
153 Moved towards generic character mapping. Configuration file default.idx
154 specifies character map files for register types w, p, u, etc.
156 Implemented "begin variant" for the sgml.regx - filter.
158 Fixed a few memory leaks.
160 Added support for C++, headers uses extern "C" for public definitions.
162 Bug fix: The show records facility (-s) only displayed information for
163 the first record in a file (and not for every record in the file).
165 Added option "-f <n>" to limit the logging of record operations. After
166 <n> records has been processed no logging is performed (unless errors
169 Bug fix: the compressed ISAM system didn't handle update operations
172 Added setting, "maxResultSetSize", to hold the number of records to
173 save in a result set.
175 Bug fix: Complete phrase did't work for search operations.
177 Bug fix: temporary result sets weren't deleted.
179 Reduced disk space for saved keys (storeKeys = 1).
181 Added optional, physical ANY (key replication)
183 Implemented proximity operator in search.
185 Bug fix: the path name buffers used by file match traversal routines
186 have been extended to support long file names.
188 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
189 configuration file. The resulting register without "storeKeys" is about
190 half the size, and the memory used by zebraidx during phase 2 (merge) is
191 reduced to a minimum.
193 Reworked the way Regexp-2 queries with error tolerance are handled and
194 specified. The documentation has been updated accordingly.
196 Bug fix: Zebrasrv didn't search correctly when queries contained masking
197 characters. This bug was introduced in 1.0a8.
199 Zebrasrv now tag records with the proper database name.
201 New settings, memMax and keyTmpDir.
203 Changed name of setting lockDir (previously called lockPath) and
204 setTmpDir (previously called tempSetPath).
206 Generalized and changed record type specifications. In short, there are:
208 grs.sgml structured, "SGML-like" syntax
209 grs.regx.<filter> structured, Regular expression filter
210 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
211 is the name of an abstract syntax file.
212 Bug fix: Result sets weren't sorted in operations involving boolean
213 operations with "ranked" operands.
217 Added national character-handling subsystem.
221 Small modifications to input filters and profiles.
223 Added support for SOIF syntax (with private OID).
227 Fixed buffer-size problem in indexing.
229 Added compression to temporary files for updating.
231 Added phrase registers.
233 Added dynamic mapping of search attribute to multiple termlists (ANY).
235 Scan support in multiple databases/registers.
237 Configuration settings are case-insensitive and single dash (-)
238 characters are ignored in comparisons.
240 The index processing ignores empty files - warning given.
242 New option to zebraidx (-V) displays version information.
246 Fixed problem in file-update system.
248 Fixed problem in shadow system; register was sometimes corrupted after
253 Fixed problems in the ISAM subsystem. Caused difficulties when updating
256 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
257 the rank and record number.
259 Fixed bug in the isam subsystem - caused a malfunction when accessing
260 words which occurred more than 10000 times.
262 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
265 Server can now run under inetd. Use option -i, and -w <directory> to
266 set working directory to desired location.
268 New zebraidx command: clean - removes temporary shadow files.
270 Fixed bug in ISAM system. Occurred rarely during register updates.
272 Logging during index merge phase is improved. The remaining running
275 Temporary files generated by zebraidx are removed after each run.
277 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
278 when doing scan operations in dictionaries with European characters.
282 A whole slew of updates, to make the first publicized release. Get the doc
287 Memory-problems in ISAM fixed. More blocktypes added to the default setup
288 to increase performance on larger databases.
290 Various minor changes in data management system.
294 A couple of portability-problems resolved.
296 Changed some malloc() to xmalloc().