Reject degenerate SPLIT PARTITION with DEFAULT partition ALTER TABLE ... SPLIT PARTITION allows a DEFAULT partition to be created as one of the replacement partitions when the parent table does not already have one. However, it should not allow the degenerate case where a non-DEFAULT partition keeps exactly the same bound as the split partition and the command merely adds a DEFAULT partition through the SPLIT PARTITION path.
Detect that case by comparing the bound of the split partition with the bound of the only non-DEFAULT replacement partition, and raise an error when they are the same. Users should add a DEFAULT partition directly with CREATE TABLE ... PARTITION OF ... DEFAULT or ALTER TABLE ... ATTACH PARTITION ... DEFAULT instead. Author: Chao Li <[email protected]> Reviewed-by: Alexander Korotkov <[email protected]> Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/d8af73010033cb8ad6c941942d6b03d74d7e4f7e Modified Files -------------- src/backend/partitioning/partbounds.c | 150 ++++++++++++++++++++++++++ src/test/regress/expected/partition_split.out | 59 ++++++++++ src/test/regress/sql/partition_split.sql | 52 +++++++++ 3 files changed, 261 insertions(+)
