mirror of
https://github.com/postgres/postgres.git
synced 2026-06-25 16:39:14 -04:00
e64a9ba2b4
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. The comparison goes through the partition operator family rather than byte equality so that values which are binary-different but compare equal under the partition key's comparator are treated as the same bound. The corresponding regression test uses a float8 LIST partition with -0.0 and 0.0 -- they have different bit patterns but are equal under float8 -- to verify that a datumIsEqual()-based check would let the degenerate split through while the partsupfunc-based check correctly rejects it. Author: Chao Li <lic@highgo.com> Reviewed-by: Alexander Korotkov <aekorotkov@gmail.com> Discussion: https://postgr.es/m/C18878AB-DEB2-4A61-9995-A035DD644B81@gmail.com |
||
|---|---|---|
| .. | ||
| authentication | ||
| examples | ||
| icu | ||
| isolation | ||
| kerberos | ||
| ldap | ||
| locale | ||
| mb | ||
| modules | ||
| perl | ||
| postmaster | ||
| recovery | ||
| regress | ||
| ssl | ||
| subscription | ||
| Makefile | ||
| meson.build | ||
| README | ||
PostgreSQL tests ================ This directory contains a variety of test infrastructure as well as some of the tests in PostgreSQL. Not all tests are here -- in particular, there are more in individual contrib/ modules and in src/bin. Not all these tests get run by "make check". Check src/test/Makefile to see which tests get run automatically. authentication/ Tests for authentication (but see also below) examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level kerberos/ Tests for Kerberos/GSSAPI authentication and encryption ldap/ Tests for LDAP-based authentication locale/ Sanity checks for locale data, encodings, etc mb/ Tests for multibyte encoding (UTF-8) support modules/ Extensions used only or mainly for test purposes, generally not suitable for installing in production databases perl/ Infrastructure for Perl-based TAP tests recovery/ Test suite for recovery and replication regress/ PostgreSQL's main regression test suite, pg_regress ssl/ Tests to exercise and verify SSL certificate handling subscription/ Tests for logical replication