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