When modifying a foreign table, initialize tableoid field properly.
When modifying a foreign table, initialize tableoid field properly.

Failure to do this can cause AFTER ROW triggers or RETURNING expressions
that reference this field to misbehave.

Etsuro Fujita, reviewed by Thom Brown

zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl