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d758d9702e
match_clause_to_partition_key failed to consider COERCION_PATH_ARRAYCOERCE cases in scalar-op-array expressions, so it was possible to crash the server easily. To handle this case properly (ie. prune partitions) we would need to run a bit of executor code during planning. Maybe it can be improved, but for now let's just not crash. Add a test case that used to trigger the crash. Author: Michaël Paquier match_clause_to_partition_key failed to indicate that operators that don't have a commutator in a btree opclass are unsupported. It is possible for this to cause a crash later if such an operator is used in a scalar-op-array expression. Add a test case that used to the crash. Author: Amit Langote One caller of gen_partprune_steps_internal in match_clause_to_partition_key was too optimistic about the former never returning an empty step list. Rid it of its innocence. (Having fixed the bug above, I no longer know how to exploit this, so no test case for it, but it remained a bug.) Revise code flow a little bit, for succintness. Author: Álvaro Herrera Reported-by: Marina Polyakova Reviewed-by: Michaël Paquier Reviewed-by: Amit Langote Reviewed-by: Álvaro Herrera Discussion: https://postgr.es/m/ff8f9bfa485ff961d6bb43e54120485b@postgrespro.ru |
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