version 2.6
New Features:
* Include first-class support for JSON data by implementing the JSONiq spec
- see http://www.jsoniq.org/ for more information. This feature is enabled by default.
* Implemented the new EQName syntax (use Q{namespace}local instead of "namespace":local)
* New function Item::isSeekable for streamable content (xs:string and xs:base64Binary)
* Implemented the latest W3C specification for the group by clause (backwards incompatible)
* New ft:tokenize-nodes() function to full-text module
* New XQuery 3.0 function fn:parse-xml-fragment#1
* New ItemFactory function that allows creating dateTime items without timezone
* Added support for transient maps to the
http://www.zorba-xquery.com/modules/store/data-structures/unordered-map module.
* Added support for fragments to fn:path
* Positional pagination support for collections
* New function in the http://www.zorba-xquery.com/modules/store/static/indexes/dml module which returns
the value of all keys contained in an index
* Incremental maintenance for general indexes
Optimizations:
* Optimization of comparison operations
* Tighter hoisting of expressions (also fixes bug #967428)
* Optimized hash sets used by fn:distinct-values and nodes-distinct
* Optimized hash function used for nodes (also fixes bug #1010051)
* Rewrite of plan serializer internals, resulting in big performance improvement
* Avoid treat expr for checking that the value of a non-external
global variable conforms to the type declaration of the variable
* Streaming execution for tumbling windows (also fixes bug #1010051)
Bug Fixes/Other Changes:
* Fixed bug #1025622 (Incorrect JSON serialization of supplementary plane code points)
* Fixed bug #1016606 (DOCTYPE in the input of the parse-fragment function)
* Fixed bug #1002993 (bug during revalidation after update; improper condition
for calling TypeOps::get_atomic_type_code() from
SchemaValidatorImpl::isPossibleSimpleContentRevalImpl())
* Fixed bug #867357 (Improved parser error messages)
* Fixed bug #1026379 ("q" flag for fn:replace() is ignored)
* Fixed bug #932314 (non-comparable values must be treated as distinct by
fn:distinct-values)
* Fixed bug #1015580 (Add base64_streambuf / replace inefficient base64 code)
* Fixed bug #1022557 (subsequence function applied on window variable)
* Fixed bug #9910884 (raise XUST0001 in trycatch with mixed updating and simple clauses)
* Fixed bug #854506 (ugly type error messages) and partial fix for bug #867008
* Fixed bug #1008082 (bug in transform expr when a copy var is not used anywhere)
* Fixed bug #898066 (Stringstream & fn:trace)
* Fixed numbering of items in fn:trace starts with one
* Fixed bug #1003023$ (optimizer problems due to common subexpression after
var folding into if-then-else)
* Fixed bug #1006166 (disabling 2 functions with the same qname)
* Fixed bug #960083 (improper error handling of NaN comparisons)
* Fixed bug #878508 (JsonML serialization not escaping characters)
* The XML plan serialization format is not supported anymore
