1 Added support for multiple records in one file for filter grs.sgml.
3 Changed record index structure. New layout is incompatible with
4 previous releases. Added setting "recordcompression" to control
5 compression of records. Possible values are "none" (no
6 compression) and bzip2 (compression using libbz2).
8 Added XML transfer syntax support for retrieval of structured records.
9 Schema in CompSpec is recognised in retrieval of structured records.
11 Changed Tcl record filter so that it attemps to read <filt>.tflt. If
12 that fails, the filter reads the file <filt>.flt (regx style filter).
14 Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
15 Zebra's configure script automatically attempts to locate Tcl. For
16 manual Tcl configuration use option --with-tclconfig=<path> to specify
17 where Tcl's library files are located.
19 Implemented "compression" of Dictionary and ISAM system. Dictionary
22 Added "tagsysno" directive to zebra.cfg to control under which tag the
23 system ID is placed. Use tagsysno: 0 to disable Zebra's system number
26 Added "tagrank" as above.
28 Changed file naming scheme for register files from <name>.mf.<no> to
31 Implemented "position"-flag for register type (as defined in
32 default.idx). When set to zero no position (or seqence number) is
33 saved in register for each word occurrence, thus saving some register
36 Implemented database mapping. Using mapdb one can specify a database
37 to be mapped to one or more physical databases. Usage:
38 mapdb <fromdb> <todb> ..
40 Added SOIF-filter. Thanks to Peter Valkenburg.
42 For the regx-filter "end element -record" may trigger a mark-of-record
43 if outer level is reached.
45 Tag sets may be typed in the reference to it. From the .abs-file the
46 "tagset" directive takes a third optional integer type for the tag set
47 referenced. From a .tag-file the "include" directive takes a third
48 optional type as well. The old "type" directive in the tag set itself
49 is still recognized but acts as the default type for the tag set.
51 Zebra supports the specification of arbitrary attributes sets, schemas
52 and tag sets, because of the change in YAZ' OID management system.
54 Fixed bug in Sort that caused it NOT to use character mapping as it
57 Zebra now uses GNU configure to generate Makefile(s).
59 Added un-optimised support for left and left/right truncation attributes.
61 Added support for relational operators on text when using RPN queries.
63 Added support for sort specifications in RPN queries. Type 7 specifies
64 'sort' where value 1=ascending, value 2=descending. The use attribute
65 specifies the field criteria as usual. The term specifies priority
66 where 0=first, 1=second, ...
68 Changed the way use attributes are specified in the recordId
71 Maximum number of databases in one Zebra register increased.
73 New setting, databasePath, which specifies that first directory during
74 update traversal is the database name (instead of a fixed one).
76 New setting, explainDatabase, which specifies that databases are
79 Modified Zebra so that it works with ASN.1 compiled code for YAZ.
81 Implemented EXPLAIN database maintenance. Zebra automatically
82 generate - and update CategoryList, TargetInfo, DatabaseInfo,
83 AttributeSetInfo and AttributeDetails records at this stage. The
84 records may be transferred as GRS-1, SUTRS or Explain.
86 Fixed register spec so that colon isn't treated as size separator
87 unless followed by [0-9+-] in order to allow DOS drive specifications.
89 Fixed two bugs in ISAMC system.
91 Changed the way Zebra keeps its maintenance information about attribute
92 sets, available attributes, etc.. Records in "SGML" notation using an
93 EXPLAIN schema is now used when appropriate.
95 Bug fix: Index didn't handle update/insert/delete of the same record
96 (i.e. same recordId) in one run (one invocation of zebraidx). Only the
97 first occurence of a record is considered.
99 Most searches now return correct number of hits.
101 New modular ranking system. Interested programmers are encouraged to
102 inspect rank1.c and improve the algorithm.
104 Bug fix: Lock files weren't removed as they should on NT.
106 Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
107 specify a "sort register". Refer to the gils sample records which refer
108 to index type "s" which is specified as "sort" in the default.idx file.
109 Each sort criteria can either be Ascending or Descending and at most
110 three sort elements can be specified.
112 Bug fix: Character mapping didn't work for text files.
116 Simple ranked searches now return correct number of hits.
118 The test option (-s) only makes a read-lock on the index as well
119 as using read-only operations anywhere.
121 Moved towards generic character mapping. Configuration file default.idx
122 specifies character map files for register types w, p, u, etc.
124 Implemented "begin variant" for the sgml.regx - filter.
126 Fixed a few memory leaks.
128 Added support for C++, headers uses extern "C" for public definitions.
130 Bug fix: The show records facility (-s) only displayed information for
131 the first record in a file (and not for every record in the file).
133 Added option "-f <n>" to limit the logging of record operations. After
134 <n> records has been processed no logging is performed (unless errors
137 Bug fix: the compressed ISAM system didn't handle update operations
140 Added setting, "maxResultSetSize", to hold the number of records to
141 save in a result set.
143 Bug fix: Complete phrase did't work for search operations.
145 Bug fix: temporary result sets weren't deleted.
147 Reduced disk space for saved keys (storeKeys = 1).
149 Added optional, physical ANY (key replication)
151 Implemented proximity operator in search.
153 Bug fix: the path name buffers used by file match traversal routines
154 have been extended to support long file names.
156 New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
157 configuration file. The resulting register without "storeKeys" is about
158 half the size, and the memory used by zebraidx during phase 2 (merge) is
159 reduced to a minimum.
161 Reworked the way Regexp-2 queries with error tolerance are handled and
162 specified. The documentation has been updated accordingly.
164 Bug fix: Zebrasrv didn't search correctly when queries contained masking
165 characters. This bug was introduced in 1.0a8.
167 Zebrasrv now tag records with the proper database name.
169 New settings, memMax and keyTmpDir.
171 Changed name of setting lockDir (previously called lockPath) and
172 setTmpDir (previously called tempSetPath).
174 Generalized and changed record type specifications. In short, there are:
176 grs.sgml structured, "SGML-like" syntax
177 grs.regx.<filter> structured, Regular expression filter
178 grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
179 is the name of an abstract syntax file.
180 Bug fix: Result sets weren't sorted in operations involving boolean
181 operations with "ranked" operands.
185 Added national character-handling subsystem.
189 Small modifications to input filters and profiles.
191 Added support for SOIF syntax (with private OID).
195 Fixed buffer-size problem in indexing.
197 Added compression to temporary files for updating.
199 Added phrase registers.
201 Added dynamic mapping of search attribute to multiple termlists (ANY).
203 Scan support in multiple databases/registers.
205 Configuration settings are case-insensitive and single dash (-)
206 characters are ignored in comparisons.
208 The index processing ignores empty files - warning given.
210 New option to zebraidx (-V) displays version information.
214 Fixed problem in file-update system.
216 Fixed problem in shadow system; register was sometimes corrupted after
221 Fixed problems in the ISAM subsystem. Caused difficulties when updating
224 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
225 the rank and record number.
227 Fixed bug in the isam subsystem - caused a malfunction when accessing
228 words which occurred more than 10000 times.
230 Distribution should now include YAZ (Z39.50 protocol stack) to simplify
233 Server can now run under inetd. Use option -i, and -w <directory> to
234 set working directory to desired location.
236 New zebraidx command: clean - removes temporary shadow files.
238 Fixed bug in ISAM system. Occurred rarely during register updates.
240 Logging during index merge phase is improved. The remaining running
243 Temporary files generated by zebraidx are removed after each run.
245 Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious
246 when doing scan operations in dictionaries with European characters.
250 A whole slew of updates, to make the first publicized release. Get the doc
255 Memory-problems in ISAM fixed. More blocktypes added to the default setup
256 to increase performance on larger databases.
258 Various minor changes in data management system.
262 A couple of portability-problems resolved.
264 Changed some malloc() to xmalloc().