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