+
+--- 1.2 2002/MM/DD
+
+New Zebra API. Locking system re-implemented. Beware!
+
+--- 1.1.stable 2002/02/20
+
+Rank weight can be controlled with attribute type 9. Default
+value is 34. Recommended values between 1-36.
+
+--- 1.1 2001/10/25
+
+Updated for YAZ version 1.8.
+
+Added support for termsets - a result set of terms matching
+a given query. For @attr 8=<set> creates termset named <set>.
+
+Added support for raw retrieval. Element Set Name R forces the
+text filter which returns the record in its original form.
+
+Added numerical sort - triggered by structure=numeric (4=109).
+
+Remote record import using Z39.50 Extended Services and Segments.
+
+Fixed bug where updating a database with user-defined attributes
+could corrupt the register (bad storeKeys).
+
+Multi-threaded version.
+
+Fixed bug regarding proximity.
+
+Documentation updates.
+
+Fixed bug in record retrieval module that occured on 64-bit OSF
+architectures.
+
+--- 1.0.1 2000/2/10
+
+Fixed bug in makefile for WIN32.
+
+Fixed bug in configure script - used bash-specific features.
+
+--- 1.0 1999/12/10
+
+The software was split in two products Zebra (for testing,
+non-profit use) and the commercial product Z'mbol. Zebra no
+longer supports INDEX UPDATES, i.e. zebraidx should be invoked only
+once for each register. Refer to LICENSE.zebra for more info.
+
+Added support for multiple records in one file for filter grs.sgml.
+
+Changed record index structure. New layout is incompatible with
+previous releases. Added setting "recordcompression" to control
+compression of records. Possible values are "none" (no
+compression) and bzip2 (compression using libbz2).
+
+Added XML transfer syntax support for retrieval of structured records.
+Schema in CompSpec is recognised in retrieval of structured records.
+
+Changed Tcl record filter so that it attemps to read <filt>.tflt. If
+that fails, the filter reads the file <filt>.flt (regx style filter).
+
+Implemented new Tcl record filter - use grs.tcl.<filter> to enable it.
+Zebra's configure script automatically attempts to locate Tcl. For
+manual Tcl configuration use option --with-tclconfig=<path> to specify
+where Tcl's library files are located.
+
+Implemented "compression" of Dictionary and ISAM system. Dictionary
+format HAS changed.
+
+Added "tagsysno" directive to zebra.cfg to control under which tag the
+system ID is placed. Use tagsysno: 0 to disable Zebra's system number
+entirely.
+
+Added "tagrank" as above.
+
+Changed file naming scheme for register files from <name>.mf.<no> to
+<name>-<no>.mf.
+
+Implemented "position"-flag for register type (as defined in
+default.idx). When set to zero no position (or seqence number) is
+saved in register for each word occurrence, thus saving some register
+space.
+
+Implemented database mapping. Using mapdb one can specify a database
+to be mapped to one or more physical databases. Usage:
+mapdb <fromdb> <todb> ..
+
+Added SOIF-filter. Thanks to Peter Valkenburg.
+
+For the regx-filter "end element -record" may trigger a mark-of-record
+if outer level is reached.
+
+Tag sets may be typed in the reference to it. From the .abs-file the
+"tagset" directive takes a third optional integer type for the tag set
+referenced. From a .tag-file the "include" directive takes a third
+optional type as well. The old "type" directive in the tag set itself
+is still recognized but acts as the default type for the tag set.
+
+Zebra supports the specification of arbitrary attributes sets, schemas
+and tag sets, because of the change in YAZ' OID management system.
+
+Fixed bug in Sort that caused it NOT to use character mapping as it
+should.
+
+Zebra now uses GNU configure to generate Makefile(s).
+
+Added un-optimised support for left and left/right truncation attributes.
+
+Added support for relational operators on text when using RPN queries.
+
+Added support for sort specifications in RPN queries. Type 7 specifies
+'sort' where value 1=ascending, value 2=descending. The use attribute
+specifies the field criteria as usual. The term specifies priority
+where 0=first, 1=second, ...
+
+Changed the way use attributes are specified in the recordId
+specification.
+
+Maximum number of databases in one Zebra register increased.
+
+New setting, databasePath, which specifies that first directory during
+update traversal is the database name (instead of a fixed one).
+
+New setting, explainDatabase, which specifies that databases are
+EXPLAIN aware.
+
+Modified Zebra so that it works with ASN.1 compiled code for YAZ.
+
+Implemented EXPLAIN database maintenance. Zebra automatically
+generate - and update CategoryList, TargetInfo, DatabaseInfo,
+AttributeSetInfo and AttributeDetails records at this stage. The
+records may be transferred as GRS-1, SUTRS or Explain.
+
+Fixed register spec so that colon isn't treated as size separator
+unless followed by [0-9+-] in order to allow DOS drive specifications.
+
+Fixed two bugs in ISAMC system.
+
+Changed the way Zebra keeps its maintenance information about attribute
+sets, available attributes, etc.. Records in "SGML" notation using an
+EXPLAIN schema is now used when appropriate.
+
+Bug fix: Index didn't handle update/insert/delete of the same record
+(i.e. same recordId) in one run (one invocation of zebraidx). Only the
+first occurence of a record is considered.
+
+Most searches now return correct number of hits.
+
+New modular ranking system. Interested programmers are encouraged to
+inspect rank1.c and improve the algorithm.
+
+Bug fix: Lock files weren't removed as they should on NT.
+
+Implemented Z39.50 Sort. Zebra's sort handler uses use attributes to
+specify a "sort register". Refer to the gils sample records which refer
+to index type "s" which is specified as "sort" in the default.idx file.
+Each sort criteria can either be Ascending or Descending and at most
+three sort elements can be specified.
+
+Bug fix: Character mapping didn't work for text files.
+
+--- 1.0b1 1998/1/29
+
+Simple ranked searches now return correct number of hits.
+
+The test option (-s) only makes a read-lock on the index as well
+as using read-only operations anywhere.
+
+Moved towards generic character mapping. Configuration file default.idx
+specifies character map files for register types w, p, u, etc.
+
+Implemented "begin variant" for the sgml.regx - filter.
+
+Fixed a few memory leaks.
+
+Added support for C++, headers uses extern "C" for public definitions.
+
+Bug fix: The show records facility (-s) only displayed information for
+the first record in a file (and not for every record in the file).
+
+Added option "-f <n>" to limit the logging of record operations. After
+<n> records has been processed no logging is performed (unless errors
+occur).
+
+Bug fix: the compressed ISAM system didn't handle update operations
+correctly.
+
+Added setting, "maxResultSetSize", to hold the number of records to
+save in a result set.
+
+Bug fix: Complete phrase did't work for search operations.
+
+Bug fix: temporary result sets weren't deleted.
+
+Reduced disk space for saved keys (storeKeys = 1).
+
+Added optional, physical ANY (key replication)
+
+Implemented proximity operator in search.
+
+Bug fix: the path name buffers used by file match traversal routines
+have been extended to support long file names.
+
+New C(ompressed) ISAM system. To enable it, specify "isam: c" in the
+configuration file. The resulting register without "storeKeys" is about
+half the size, and the memory used by zebraidx during phase 2 (merge) is
+reduced to a minimum.
+
+Reworked the way Regexp-2 queries with error tolerance are handled and
+specified. The documentation has been updated accordingly.
+
+Bug fix: Zebrasrv didn't search correctly when queries contained masking
+characters. This bug was introduced in 1.0a8.
+
+Zebrasrv now tag records with the proper database name.
+
+New settings, memMax and keyTmpDir.
+
+Changed name of setting lockDir (previously called lockPath) and
+setTmpDir (previously called tempSetPath).
+
+Generalized and changed record type specifications. In short, there are:
+ text plain SUTRS
+ grs.sgml structured, "SGML-like" syntax
+ grs.regx.<filter> structured, Regular expression filter
+ grs.marc.<abs> Reads *MARC records in the ISO2709 format. <abs>
+ is the name of an abstract syntax file.
+Bug fix: Result sets weren't sorted in operations involving boolean
+operations with "ranked" operands.
+
+--- 1.0a8 1996/6/6
+
+Added national character-handling subsystem.
+
+Various fixes.
+
+Small modifications to input filters and profiles.
+
+Added support for SOIF syntax (with private OID).
+
+--- 1.0a7 1996/5/16
+
+Fixed buffer-size problem in indexing.
+
+Added compression to temporary files for updating.
+
+Added phrase registers.
+
+Added dynamic mapping of search attribute to multiple termlists (ANY).
+
+Scan support in multiple databases/registers.
+
Configuration settings are case-insensitive and single dash (-)
characters are ignored in comparisons.
projects / idzebra-moved-to-github.git / blobdiff