3 Updated for YAZ version 1.8.
5 Added support for termsets - a result set of terms matching
8 Added support for raw retrieval. Element Set Name R forces the
9 text filter which returns the record in its original form.
11 Added numerical sort - triggered by structure=numeric (4=109).
13 Remote record import using Z39.50 Extended Services and Segments.
15 Fixed bug where updating a database with user-defined attributes
16 could corrupt the register (bad storeKeys).
18 Multi-threaded version.
20 Fixed bug regarding proximity.
22 Documentation updates.
24 Fixed bug in record retrieval module that occured on 64-bit OSF
29 Fixed bug in makefile for WIN32.
31 Fixed bug in configure script - used bash-specific features.
35 The software was split in two products Zebra (for testing,
36 non-profit use) and the commercial product Z'mbol. Zebra no
37 longer supports INDEX UPDATES, i.e. zebraidx should be invoked only
38 once for each register. Refer to LICENSE.zebra for more info.
40 Added support for multiple records in one file for filter grs.sgml.
42 Changed record index structure. New layout is incompatible with
43 previous releases. Added setting "recordcompression" to control
44 compression of records. Possible values are "none" (no
45 compression) and bzip2 (compression using libbz2).
47 Added XML transfer syntax support for retrieval of structured records.
48 Schema in CompSpec is recognised in retrieval of structured records.
50 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
51 that fails, the filter reads the file <filt>.flt (regx style filter).
53 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
54 Zebra's configure script automatically attempts to locate Tcl. For
55 manual Tcl configuration use option --with-tclconfig=<path> to specify
56 where Tcl's library files are located.
58 Implemented "compression" of Dictionary and ISAM system. Dictionary
61 Added "tagsysno" directive to zebra.cfg to control under which tag the
62 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
65 Added "tagrank" as above.
67 Changed file naming scheme for register files from <name>.mf.<no> to
70 Implemented "position"-flag for register type (as defined in
71 default.idx). When set to zero no position (or seqence number) is
72 saved in register for each word occurrence, thus saving some register
75 Implemented database mapping. Using mapdb one can specify a database
76 to be mapped to one or more physical databases. Usage:
77 mapdb <fromdb> <todb> ..
79 Added SOIF-filter. Thanks to Peter Valkenburg.
81 For the regx-filter "end element -record" may trigger a mark-of-record
82 if outer level is reached.
84 Tag sets may be typed in the reference to it. From the .abs-file the
85 "tagset" directive takes a third optional integer type for the tag set
86 referenced. From a .tag-file the "include" directive takes a third
87 optional type as well. The old "type" directive in the tag set itself
88 is still recognized but acts as the default type for the tag set.
90 Zebra supports the specification of arbitrary attributes sets, schemas
91 and tag sets, because of the change in YAZ' OID management system.
93 Fixed bug in Sort that caused it NOT to use character mapping as it
96 Zebra now uses GNU configure to generate Makefile(s).
98 Added un-optimised support for left and left/right truncation attributes.
100 Added support for relational operators on text when using RPN queries.
102 Added support for sort specifications in RPN queries. Type 7 specifies
103 'sort' where value 1=ascending, value 2=descending. The use attribute
104 specifies the field criteria as usual. The term specifies priority
105 where 0=first, 1=second, ...
107 Changed the way use attributes are specified in the recordId
110 Maximum number of databases in one Zebra register increased.
112 New setting, databasePath, which specifies that first directory during
113 update traversal is the database name (instead of a fixed one).
115 New setting, explainDatabase, which specifies that databases are
118 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
120 Implemented EXPLAIN database maintenance. Zebra automatically
121 generate - and update CategoryList, TargetInfo, DatabaseInfo,
122 AttributeSetInfo and AttributeDetails records at this stage. The
123 records may be transferred as GRS-1, SUTRS or Explain.
125 Fixed register spec so that colon isn't treated as size separator
126 unless followed by [0-9+-] in order to allow DOS drive specifications.
128 Fixed two bugs in ISAMC system.
130 Changed the way Zebra keeps its maintenance information about attribute
131 sets, available attributes, etc.. Records in "SGML" notation using an
132 EXPLAIN schema is now used when appropriate.
134 Bug fix: Index didn't handle update/insert/delete of the same record
135 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
136 first occurence of a record is considered.
138 Most searches now return correct number of hits.
140 New modular ranking system. Interested programmers are encouraged to
141 inspect rank1.c and improve the algorithm.
143 Bug fix: Lock files weren't removed as they should on NT.
145 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
146 specify a "sort register". Refer to the gils sample records which refer
147 to index type "s" which is specified as "sort" in the default.idx file.
148 Each sort criteria can either be Ascending or Descending and at most
149 three sort elements can be specified.
151 Bug fix: Character mapping didn't work for text files.
155 Simple ranked searches now return correct number of hits.
157 The test option (-s) only makes a read-lock on the index as well
158 as using read-only operations anywhere.
160 Moved towards generic character mapping. Configuration file default.idx
161 specifies character map files for register types w, p, u, etc.
163 Implemented "begin variant" for the sgml.regx - filter.
165 Fixed a few memory leaks.
167 Added support for C++, headers uses extern "C" for public definitions.
169 Bug fix: The show records facility (-s) only displayed information for
170 the first record in a file (and not for every record in the file).
172 Added option "-f <n>" to limit the logging of record operations. After
173 <n> records has been processed no logging is performed (unless errors
176 Bug fix: the compressed ISAM system didn't handle update operations
179 Added setting, "maxResultSetSize", to hold the number of records to
180 save in a result set.
182 Bug fix: Complete phrase did't work for search operations.
184 Bug fix: temporary result sets weren't deleted.
186 Reduced disk space for saved keys (storeKeys = 1).
188 Added optional, physical ANY (key replication)
190 Implemented proximity operator in search.
192 Bug fix: the path name buffers used by file match traversal routines
193 have been extended to support long file names.
195 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
196 configuration file. The resulting register without "storeKeys" is about
197 half the size, and the memory used by zebraidx during phase 2 (merge) is
198 reduced to a minimum.
200 Reworked the way Regexp-2 queries with error tolerance are handled and
201 specified. The documentation has been updated accordingly.
203 Bug fix: Zebrasrv didn't search correctly when queries contained masking
204 characters. This bug was introduced in 1.0a8.
206 Zebrasrv now tag records with the proper database name.
208 New settings, memMax and keyTmpDir.
210 Changed name of setting lockDir (previously called lockPath) and
211 setTmpDir (previously called tempSetPath).
213 Generalized and changed record type specifications. In short, there are:
215 grs.sgml structured, "SGML-like" syntax
216 grs.regx.<filter> structured, Regular expression filter
217 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
218 is the name of an abstract syntax file.
219 Bug fix: Result sets weren't sorted in operations involving boolean
220 operations with "ranked" operands.
224 Added national character-handling subsystem.
228 Small modifications to input filters and profiles.
230 Added support for SOIF syntax (with private OID).
234 Fixed buffer-size problem in indexing.
236 Added compression to temporary files for updating.
238 Added phrase registers.
240 Added dynamic mapping of search attribute to multiple termlists (ANY).
242 Scan support in multiple databases/registers.
244 Configuration settings are case-insensitive and single dash (-)
245 characters are ignored in comparisons.
247 The index processing ignores empty files - warning given.
249 New option to zebraidx (-V) displays version information.
253 Fixed problem in file-update system.
255 Fixed problem in shadow system; register was sometimes corrupted after
260 Fixed problems in the ISAM subsystem. Caused difficulties when updating
263 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
264 the rank and record number.
266 Fixed bug in the isam subsystem - caused a malfunction when accessing
267 words which occurred more than 10000 times.
269 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
272 Server can now run under inetd. Use option -i, and -w <directory> to
273 set working directory to desired location.
275 New zebraidx command: clean - removes temporary shadow files.
277 Fixed bug in ISAM system. Occurred rarely during register updates.
279 Logging during index merge phase is improved. The remaining running
282 Temporary files generated by zebraidx are removed after each run.
284 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
285 when doing scan operations in dictionaries with European characters.
289 A whole slew of updates, to make the first publicized release. Get the doc
294 Memory-problems in ISAM fixed. More blocktypes added to the default setup
295 to increase performance on larger databases.
297 Various minor changes in data management system.
301 A couple of portability-problems resolved.
303 Changed some malloc() to xmalloc().