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