New result set model and modular ranking system. Moved towards

[idzebra-moved-to-github.git] / CHANGELOG

diff --git a/CHANGELOG b/CHANGELOG
index f5f1b2c..dcdc5c1 100644 (file)
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,33 @@
+Changed the way Zebra keeps its maintenance information. 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 when using 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.
 
 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.
 
 Moved towards generic character mapping. Configuration file default.idx
 specifies character map files for register types w, p, u, etc.