pgsql: Introduce parse_ident()

Introduce parse_ident()

SQL-layer function to split qualified identifier into array parts.

Author: Pavel Stehule with minor editorization by me and Jim Nasby

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/3187d6de0e5a9e805b27c48437897e8c39071d45

Modified Files
--------------
doc/src/sgml/func.sgml | 26 ++++
src/backend/catalog/system_views.sql | 7 ++
src/backend/parser/scansup.c | 12 +-
src/backend/utils/adt/misc.c | 224 +++++++++++++++++++++++++++++++++++
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_proc.h | 3 +
src/include/parser/scansup.h | 3 +
src/include/utils/builtins.h | 1 +
src/test/regress/expected/name.out | 66 +++++++++++
src/test/regress/sql/name.sql | 33 ++++++
10 files changed, 375 insertions(+), 2 deletions(-)

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