X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=CHANGELOG;h=56b656b5d4f19412832238422c7e92fac3f7fd15;hp=e720d1917d7b13076eaff4c642f9ed6e7c8446c8;hb=1ccf2613ceef2359f589cb3dd7e72a899c618b2f;hpb=1f6d50562f7c9bb02e6781aee7594928e6ede569 diff --git a/CHANGELOG b/CHANGELOG index e720d19..56b656b 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -1,4 +1,264 @@ ---- XXXX XXXX/XX/XX +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. + +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. + +--- 1.0a6 1996/2/24 + +Fixed problem in file-update system. + +Fixed problem in shadow system; register was sometimes corrupted after +a commit operation. + +--- 1.0a5 1996/2/10 + +Fixed problems in the ISAM subsystem. Caused difficulties when updating +existing registers. + +Fixed small problem in SUTRS-filter. A newline was sometimes inserted before +the rank and record number. + +Fixed bug in the isam subsystem - caused a malfunction when accessing +words which occurred more than 10000 times. + +Distribution should now include YAZ (Z39.50 protocol stack) to simplify +installation. + +Server can now run under inetd. Use option -i, and -w to +set working directory to desired location. New zebraidx command: clean - removes temporary shadow files. @@ -10,7 +270,7 @@ time is estimated. Temporary files generated by zebraidx are removed after each run. Bug fix: Dictionary didn't handle 8-bit characters correctly; was obvious -when doing scan operations in dictionares with european characters. +when doing scan operations in dictionaries with European characters. --- 1.0a4 1996/01/11