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