path occurrence field and related query benchmarking
path occurrence field and related query benchmarking
Working implementation of regexp-based path queries - all tests pass
clean up debug messages
Merge branch 'master' into path-occurrence
cleanup comments about potential bug w/exists() optimization and cleanup duplicate code a bit
defensive assertion: throw exception when sorting by unsupported type
finally cleaned up the type-as-bitflag mess

Added an EMPTY flag; this can be applied to any query, so
we no longer have to use the immutable static match-all queries

Use the EMPTY state to control precedence of minimal flags when combining
comment re: possible field-terms performance booster
comment
test case for some built-in functions in predicates
MockQuery now tracks query result type better;
got rid of DOCUMENT_RESULTS flag in XPathQuery
updated test cases to reflect these changes
got rid of flawed idea of isomorphs
simplified handling of built-in functions
tightened up handling of binary operators
-- this is all from a fix for the previous over optimization of exists(…)
missed a spot ... all tests pass now
removing dead code
adding DocWriter.close()
removing deadcode
formatting
exclude xqts from coverage metric
test file extension functions