X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=CHANGELOG;h=5ad7744cc7df8215dfa4cd7f12c46255b89af22e;hp=f5f1b2cf55224a47d41480c9262ab18d6b64d45b;hb=bad06dda453543b8dd716ee54e9b7cb2b015b6e5;hpb=d79f0901b184c1bcf383be8500aee3cfd197ca1d diff --git a/CHANGELOG b/CHANGELOG index f5f1b2c..5ad7744 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -1,5 +1,207 @@ + +--- 1.3.0 2002/MM/DD + +Zebra license changed to GNU GPL. + +XPATH-like queries used when RPN string attributes are used, eg. + @attr 1=/portal/title sometitle + @attr 1=/portal/title[@xml:lang=da] danishtitle + @attr 1=/portal/title/@xml:lang da + @attr 1=//title sometitle + +Zebra uses UTF-8 internally: +1) New setting "encoding" for zebra.cfg that specifies encoding for +OCTET terms in queries and record encoding for most transfer syntaxes +(except those that use International Strings, such as GRS-1). +2) The encoding of International strings is UTF-8 by default. It +may be changed by character set negotiation. If character set +negotiation is in effect and if records are selected for conversion +these'll be converted to the selected character set - thus overriding +the encoding setting in zebra.cfg. + +3) New directive "encoding" in .abs-files. This specifies the +external for files indexed by zebra. However, if records themselves +have an XML header that specifies and encoding that'll be used +instead. + +XML filter (-t grs.xml). + +Multiple registers. New setting in resource 'root' that holds base +directory for register(s). A group a databases may be put in separate +register in directory root/reg by using db name 'reg/db1' ... 'reg/dbN'. + +--- 1.1.1 2002/03/21 + +Fixes for Digital Unix + +Implemented hits per term using USR:SearchResult-1. + +New Zebra API. Locking system re-implemented. + +--- 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= creates termset named . + +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 .tflt. If +that fails, the filter reads the file .flt (regx style filter). + +Implemented new Tcl record filter - use grs.tcl. to enable it. +Zebra's configure script automatically attempts to locate Tcl. For +manual Tcl configuration use option --with-tclconfig= 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 .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.