Ensure COPY TO on an RLS-enabled table copies no more than it should. The COPY documentation is quite clear that "COPY relation TO" copies rows from only the named table, not any inheritance children it may have. However, if you enabled row-level security on the table then this stopped being true, because the code forgot to apply the ONLY modifier in the "SELECT ... FROM relation" query that it constructs in order to allow RLS predicates to be attached. Fix that.
Report and patch by Antonin Houska (comment adjustments and test case by me). Back-patch to all supported branches. Discussion: https://postgr.es/m/3472.1675251957@antos Branch ------ REL_11_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/6e2674d772b017f4ad4e36394aa1cf64c05b46e5 Modified Files -------------- src/backend/commands/copy.c | 9 +++++--- src/test/regress/expected/rowsecurity.out | 37 +++++++++++++++++++++++++++++++ src/test/regress/sql/rowsecurity.sql | 34 ++++++++++++++++++++++++++++ 3 files changed, 77 insertions(+), 3 deletions(-)
