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