1 Implemented "position"-flag for register type (as defined in
2 default.idx). When set to zero no position (or seqence number) is
3 saved in register for each word occurrence, thus saving some register
6 Implemented database mapping. Using mapdb one can specify a database
7 to be mapped to one or more physical databases. Usage:
8 mapdb <fromdb> <todb> ..
10 Added SOIF-filter. Thanks to Peter Valkenburg.
12 For the regx-filter "end element -record" may trigger a mark-of-record
13 if outer level is reached.
15 Tag sets may be typed in the reference to it. From the .abs-file the
16 "tagset" directive takes a third optional integer type for the tag set
17 referenced. From a .tag-file the "include" directive takes a third
18 optional type as well. The old "type" directive in the tag set itself
19 is still recognized but acts as the default type for the tag set.
21 Zebra supports the specification of arbitrary attributes sets, schemas
22 and tag sets, because of the change in YAZ' OID management system.
24 Fixed bug in Sort that caused it NOT to use character mapping as it
27 Zebra now uses GNU configure to generate Makefile(s).
29 Added un-optimised support for left and left/right truncation attributes.
31 Added support for relational operators on text when using RPN queries.
33 Added support for sort specifications in RPN queries. Type 7 specifies
34 'sort' where value 1=ascending, value 2=descending. The use attribute
35 specifies the field criteria as usual. The term specifies priority
36 where 0=first, 1=second, ...
38 Changed the way use attributes are specified in the recordId
41 Maximum number of databases in one Zebra register increased.
43 New setting, databasePath, which specifies that first directory during
44 update traversal is the database name (instead of a fixed one).
46 New setting, explainDatabase, which specifies that databases are
49 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
51 Implemented EXPLAIN database maintenance. Zebra automatically
52 generate - and update CategoryList, TargetInfo, DatabaseInfo,
53 AttributeSetInfo and AttributeDetails records at this stage. The
54 records may be transferred as GRS-1, SUTRS or Explain.
56 Fixed register spec so that colon isn't treated as size separator
57 unless followed by [0-9+-] in order to allow DOS drive specifications.
59 Fixed two bugs in ISAMC system.
61 Changed the way Zebra keeps its maintenance information about attribute
62 sets, available attributes, etc.. Records in "SGML" notation using an
63 EXPLAIN schema is now used when appropriate.
65 Bug fix: Index didn't handle update/insert/delete of the same record
66 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
67 first occurence of a record is considered.
69 Most searches now return correct number of hits.
71 New modular ranking system. Interested programmers are encouraged to
72 inspect rank1.c and improve the algorithm.
74 Bug fix: Lock files weren't removed as they should on NT.
76 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
77 specify a "sort register". Refer to the gils sample records which refer
78 to index type "s" which is specified as "sort" in the default.idx file.
79 Each sort criteria can either be Ascending or Descending and at most
80 three sort elements can be specified.
82 Bug fix: Character mapping didn't work for text files.
86 Simple ranked searches now return correct number of hits.
88 The test option (-s) only makes a read-lock on the index as well
89 as using read-only operations anywhere.
91 Moved towards generic character mapping. Configuration file default.idx
92 specifies character map files for register types w, p, u, etc.
94 Implemented "begin variant" for the sgml.regx - filter.
96 Fixed a few memory leaks.
98 Added support for C++, headers uses extern "C" for public definitions.
100 Bug fix: The show records facility (-s) only displayed information for
101 the first record in a file (and not for every record in the file).
103 Added option "-f <n>" to limit the logging of record operations. After
104 <n> records has been processed no logging is performed (unless errors
107 Bug fix: the compressed ISAM system didn't handle update operations
110 Added setting, "maxResultSetSize", to hold the number of records to
111 save in a result set.
113 Bug fix: Complete phrase did't work for search operations.
115 Bug fix: temporary result sets weren't deleted.
117 Reduced disk space for saved keys (storeKeys = 1).
119 Added optional, physical ANY (key replication)
121 Implemented proximity operator in search.
123 Bug fix: the path name buffers used by file match traversal routines
124 have been extended to support long file names.
126 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
127 configuration file. The resulting register without "storeKeys" is about
128 half the size, and the memory used by zebraidx during phase 2 (merge) is
129 reduced to a minimum.
131 Reworked the way Regexp-2 queries with error tolerance are handled and
132 specified. The documentation has been updated accordingly.
134 Bug fix: Zebrasrv didn't search correctly when queries contained masking
135 characters. This bug was introduced in 1.0a8.
137 Zebrasrv now tag records with the proper database name.
139 New settings, memMax and keyTmpDir.
141 Changed name of setting lockDir (previously called lockPath) and
142 setTmpDir (previously called tempSetPath).
144 Generalized and changed record type specifications. In short, there are:
146 grs.sgml structured, "SGML-like" syntax
147 grs.regx.<filter> structured, Regular expression filter
148 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
149 is the name of an abstract syntax file.
150 Bug fix: Result sets weren't sorted in operations involving boolean
151 operations with "ranked" operands.
155 Added national character-handling subsystem.
159 Small modifications to input filters and profiles.
161 Added support for SOIF syntax (with private OID).
165 Fixed buffer-size problem in indexing.
167 Added compression to temporary files for updating.
169 Added phrase registers.
171 Added dynamic mapping of search attribute to multiple termlists (ANY).
173 Scan support in multiple databases/registers.
175 Configuration settings are case-insensitive and single dash (-)
176 characters are ignored in comparisons.
178 The index processing ignores empty files - warning given.
180 New option to zebraidx (-V) displays version information.
184 Fixed problem in file-update system.
186 Fixed problem in shadow system; register was sometimes corrupted after
191 Fixed problems in the ISAM subsystem. Caused difficulties when updating
194 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
195 the rank and record number.
197 Fixed bug in the isam subsystem - caused a malfunction when accessing
198 words which occurred more than 10000 times.
200 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
203 Server can now run under inetd. Use option -i, and -w <directory> to
204 set working directory to desired location.
206 New zebraidx command: clean - removes temporary shadow files.
208 Fixed bug in ISAM system. Occurred rarely during register updates.
210 Logging during index merge phase is improved. The remaining running
213 Temporary files generated by zebraidx are removed after each run.
215 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
216 when doing scan operations in dictionaries with European characters.
220 A whole slew of updates, to make the first publicized release. Get the doc
225 Memory-problems in ISAM fixed. More blocktypes added to the default setup
226 to increase performance on larger databases.
228 Various minor changes in data management system.
232 A couple of portability-problems resolved.
234 Changed some malloc() to xmalloc().