Zorba 2.8 "Hermes"

Zorba - The XQuery Processor

version 2.8

New Features:
  * New external module for interfacing with Couchbase Server.
  * New external module for interfacing with SQLite Database.
  * New external module for interfacing with Oracle NoSQL Database.
  * New external module for interfacing with relational databases via JDBC.
  * New external info-extraction module for querying concepts and entities in
    natural language text.
  * New built-in module to (de)reference XML nodes or JSON objects and
    arrays that are stored in a collection
  * Implemented JSONiq's json-doc() function.
  * http-uri-resolution feature to disable HTTP when resolving URIs.
  * Option to specify that parse-json() strips the top-level array.
  * Extended cast and castable expression to allow any simple target type
    (as specified by XQuery 3.0).
  * The XQXQ (XQuery-for-XQuery) module became part of the Zorba core.
  * The datetime module became part of the Zorba core.
  * In the datetime module, added parse-date(), parse-dateTime(), parse-time(),
    and utc-offset().
  * Includes test driver for W3C XQuery 3.0 Test Suite (aka FOTS).

Optimizations:
  * Various optimizations in the implementation of the optimizer rules.
  * Better computation of the static type for global variables.
  * Optimization of comparison operators when untypedAtomic items are involved.
  * Improved computation of static type for fn:data function.
  * Fixed iteration over the components of a window clause; this improves static
    type computation of expressions referencing window vars.
  * No need to cast xs:untypedAtomic to xs:string in order-by expression.
  * Convert LET variables whose domain sequence has exactly one item to FOR vars.

Bug Fixes/Other Changes:
  * Fixed bug #949064 (faulty QName should be printed in the error message)
  * Fixed bug #1072644 (broken parser error location)
  * Fixed bug #868640 (Node lifetime is shorter than expected due to let
      variable inlining)
  * Fixed bugs #1081626 (Segmentation fault in a side-effecting FLWOR),
      #1079488 (streaming segfault)
  * Fixed bug #1062093 (bug in var reference iterators with an associated
      position that is negative)
  * Fixed bug #1073978 (FOTS: option default ns not supported)
  * Fixed bug #1061222 (bad message for errors in index key type declaration)
  * Fixed bug #1065175 (preceding::node()[1] returns wrong results)
  * Fixed bug #1065321 (following:text() doesn't return results in doc order)
  * Fixed bug #1067706 (wrong const folding in mutually recursive udfs)
  * Fixed bug #1021492 (while computing the "sources" of a prolog var, skip
      any var-setting exprs that appear in non-used (and non-optimized) functions).
  * Fixed bug #1070551 (zerr:ZOSE0003 stream read failure)
  * Fixed bug #992304 (Compiling library modules could load data from wrong
    source)
  * Fixed bug #1043294 (XQST0036 not used in XQuery 3.0).
  * Fixed bug in castable expr when the target type is xs:QName.
  * Fixed bug in testing if a sequence type is subtype of node(xs:untyped)
  * Fixed mustCopyInputNodes() method of no-copy, and jsoniq functions.
  * Fixed bugs related to casting to user-defined types.