Log Message:
-----------
XPath fixes:
- Function renamed to "xpath".
- Function is now strict, per discussion.
- Return empty array in case when XPath expression detects nothing
(previously, NULL was returned in such case), per discussion.
- (bugfix) Work with fragments with prologue: select xpath('/a',
'<?xml version="1.0"?><a /><b />'); // now XML datum is always wrapped
with dummy <x>...</x>, XML prologue simply goes away (if any).
- Some cleanup.
Nikolay Samokhvalov
Some code cleanup and documentation work by myself.
Modified Files:
--------------
pgsql/doc/src/sgml:
datatype.sgml (r1.200 -> r1.201)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/datatype.sgml.diff?r1=1.200&r2=1.201)
func.sgml (r1.379 -> r1.380)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml.diff?r1=1.379&r2=1.380)
pgsql/src/backend/utils/adt:
xml.c (r1.42 -> r1.43)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/xml.c.diff?r1=1.42&r2=1.43)
pgsql/src/include/catalog:
catversion.h (r1.406 -> r1.407)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h.diff?r1=1.406&r2=1.407)
pg_proc.h (r1.455 -> r1.456)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_proc.h.diff?r1=1.455&r2=1.456)
pgsql/src/include/utils:
xml.h (r1.18 -> r1.19)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/xml.h.diff?r1=1.18&r2=1.19)
pgsql/src/test/regress/expected:
xml.out (r1.17 -> r1.18)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/xml.out.diff?r1=1.17&r2=1.18)
xml_1.out (r1.16 -> r1.17)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/xml_1.out.diff?r1=1.16&r2=1.17)
pgsql/src/test/regress/sql:
xml.sql (r1.14 -> r1.15)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/xml.sql.diff?r1=1.14&r2=1.15)
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