pgsql: pg_partition_ancestors

pg_partition_ancestors

Adds another introspection feature for partitioning, necessary for
further psql patches.

Reviewed-by: Michaël Paquier
Discussion: https://postgr.es/m/20190226222757.GA31622@alvherre.pgsql

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b96f6b19487fb9802216311b242c01c27c1938de

Modified Files
--------------
doc/src/sgml/func.sgml                       | 11 +++++
src/backend/utils/adt/partitionfuncs.c       | 49 +++++++++++++++++++++
src/include/catalog/catversion.h             |  2 +-
src/include/catalog/pg_proc.dat              |  5 +++
src/test/regress/expected/partition_info.out | 65 ++++++++++++++++++++++++++++
src/test/regress/sql/partition_info.sql      | 13 ++++++
6 files changed, 144 insertions(+), 1 deletion(-)