X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=CHANGELOG;h=971678b49e9127d6ad0dda80a15e7ae059c2a997;hb=5b4dcfcb99600327a11b58de4fec33003dc4d816;hp=ba0a6f77a0c075469e603376d61e22178d0ee729;hpb=4761eb8c7f59142020d60e68127a159e9ad4ef55;p=idzebra-moved-to-github.git diff --git a/CHANGELOG b/CHANGELOG index ba0a6f7..971678b 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -1,5 +1,110 @@ -Added feature in regx-filters: "end element" on outer-most level will -perform an implicit "end record". +Added "tagsysno" directive to zebra.cfg to control under which tag the +sysstem 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 .mf. to +-.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 .. + +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). @@ -49,7 +154,8 @@ 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.