Make xpath() do something useful with XPath expressions that return scalars.
Previously, xpath() simply returned an empty array if the expression did not yield a node set. This is useless for expressions that return scalars, such as one with name() at the top level. Arrange to return the scalar value as a single-element xml array, instead. (String values will be suitably escaped.) This change will also cause xpath_exists() to return true, not false, for such expressions. Florian Pflug, reviewed by Radoslaw Smogura Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/0ce7676aa03a2501fde949fea211ba5cd84c2ded Modified Files -------------- doc/src/sgml/func.sgml | 2 + src/backend/utils/adt/xml.c | 114 ++++++++++++++++++++++++++++------- src/test/regress/expected/xml.out | 48 +++++++++++++++ src/test/regress/expected/xml_1.out | 48 +++++++++++++++ src/test/regress/sql/xml.sql | 8 +++ 5 files changed, 198 insertions(+), 22 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
