Thread: pgsql: postgres_fdw: Avoid possible misbehavior when RETURNING tableoid

postgres_fdw: Avoid possible misbehavior when RETURNING tableoid column only.

deparseReturningList ended up adding up RETURNING NULL to the code, but
code elsewhere saw an empty list of attributes and concluded that it
should not expect tuples from the remote side.

Etsuro Fujita and Robert Haas, reviewed by Thom Brown

Branch
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REL9_5_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/d160e2a343996030804cc6b74cc5a0b133dae950

Modified Files
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contrib/postgres_fdw/deparse.c                 | 18 +++++----
contrib/postgres_fdw/expected/postgres_fdw.out | 53 ++++++++++++++++++++++++++
contrib/postgres_fdw/sql/postgres_fdw.sql      |  9 +++++
3 files changed, 73 insertions(+), 7 deletions(-)