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