Fix bugs in polymorphic-argument resolution for multiranges. We failed to deal with an UNKNOWN-type input for anycompatiblemultirange; that should throw an error indicating that we don't know how to resolve the multirange type.
We also failed to infer the type of an anycompatiblerange output from an anycompatiblemultirange input or vice versa. Per bug #17066 from Alexander Lakhin. Back-patch to v14 where multiranges were added. Discussion: https://postgr.es/m/[email protected] Branch ------ REL_14_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/b7ea0e8c41f1e512923267a57cd08df63115b783 Modified Files -------------- src/backend/parser/parse_coerce.c | 316 ++++++++++++++++------------- src/test/regress/expected/polymorphism.out | 68 ++++++- src/test/regress/expected/rangefuncs.out | 2 +- src/test/regress/sql/polymorphism.sql | 48 +++++ 4 files changed, 293 insertions(+), 141 deletions(-)
