X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=CHANGELOG;h=9f5c3c2d33a13c26c8a8af936baa3e1aad5af038;hp=0c65b7ced5ec290821bd65c46c3d48762f75ac6e;hb=3c5f6226f97612c0d6ac40591f600587c5ffa858;hpb=efc9ee6dcb946a247a45c7545471af21a530e0ff diff --git a/CHANGELOG b/CHANGELOG index 0c65b7c..9f5c3c2 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -1,3 +1,175 @@ +Implemented database mapping. Using mapdb one can specify a database +to be mapped to one or more physical databases. Usage: +mapdb .. + +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 " to limit the logging of record operations. After + 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. structured, Regular expression filter + grs.marc. Reads *MARC records in the ISO2709 format. + 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. + The index processing ignores empty files - warning given. New option to zebraidx (-V) displays version information.