diff options
Diffstat (limited to 'contrib/postgres_fdw/sql/postgres_fdw.sql')
| -rw-r--r-- | contrib/postgres_fdw/sql/postgres_fdw.sql | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/contrib/postgres_fdw/sql/postgres_fdw.sql b/contrib/postgres_fdw/sql/postgres_fdw.sql index 3b4f90a99ca..7487096eac5 100644 --- a/contrib/postgres_fdw/sql/postgres_fdw.sql +++ b/contrib/postgres_fdw/sql/postgres_fdw.sql @@ -2352,6 +2352,107 @@ drop foreign table rem3; drop table loc3; -- =================================================================== +-- test for TRUNCATE +-- =================================================================== +CREATE TABLE tru_rtable0 (id int primary key); +CREATE TABLE tru_rtable1 (id int primary key); +CREATE FOREIGN TABLE tru_ftable (id int) + SERVER loopback OPTIONS (table_name 'tru_rtable0'); +INSERT INTO tru_rtable0 (SELECT x FROM generate_series(1,10) x); + +CREATE TABLE tru_ptable (id int) PARTITION BY HASH(id); +CREATE TABLE tru_ptable__p0 PARTITION OF tru_ptable + FOR VALUES WITH (MODULUS 2, REMAINDER 0); +CREATE FOREIGN TABLE tru_ftable__p1 PARTITION OF tru_ptable + FOR VALUES WITH (MODULUS 2, REMAINDER 1) + SERVER loopback OPTIONS (table_name 'tru_rtable1'); +INSERT INTO tru_ptable (SELECT x FROM generate_series(11,20) x); + +CREATE TABLE tru_pk_table(id int primary key); +CREATE TABLE tru_fk_table(fkey int references tru_pk_table(id)); +INSERT INTO tru_pk_table (SELECT x FROM generate_series(1,10) x); +INSERT INTO tru_fk_table (SELECT x % 10 + 1 FROM generate_series(5,25) x); +CREATE FOREIGN TABLE tru_pk_ftable (id int) + SERVER loopback OPTIONS (table_name 'tru_pk_table'); + +CREATE TABLE tru_rtable_parent (id int); +CREATE TABLE tru_rtable_child (id int); +CREATE FOREIGN TABLE tru_ftable_parent (id int) + SERVER loopback OPTIONS (table_name 'tru_rtable_parent'); +CREATE FOREIGN TABLE tru_ftable_child () INHERITS (tru_ftable_parent) + SERVER loopback OPTIONS (table_name 'tru_rtable_child'); +INSERT INTO tru_rtable_parent (SELECT x FROM generate_series(1,8) x); +INSERT INTO tru_rtable_child (SELECT x FROM generate_series(10, 18) x); + +-- normal truncate +SELECT sum(id) FROM tru_ftable; -- 55 +TRUNCATE tru_ftable; +SELECT count(*) FROM tru_rtable0; -- 0 +SELECT count(*) FROM tru_ftable; -- 0 + +-- 'truncatable' option +ALTER SERVER loopback OPTIONS (ADD truncatable 'false'); +TRUNCATE tru_ftable; -- error +ALTER FOREIGN TABLE tru_ftable OPTIONS (ADD truncatable 'true'); +TRUNCATE tru_ftable; -- accepted +ALTER FOREIGN TABLE tru_ftable OPTIONS (SET truncatable 'false'); +TRUNCATE tru_ftable; -- error +ALTER SERVER loopback OPTIONS (DROP truncatable); +ALTER FOREIGN TABLE tru_ftable OPTIONS (SET truncatable 'false'); +TRUNCATE tru_ftable; -- error +ALTER FOREIGN TABLE tru_ftable OPTIONS (SET truncatable 'true'); +TRUNCATE tru_ftable; -- accepted + +-- partitioned table with both local and foreign tables as partitions +SELECT sum(id) FROM tru_ptable; -- 155 +TRUNCATE tru_ptable; +SELECT count(*) FROM tru_ptable; -- 0 +SELECT count(*) FROM tru_ptable__p0; -- 0 +SELECT count(*) FROM tru_ftable__p1; -- 0 +SELECT count(*) FROM tru_rtable1; -- 0 + +-- 'CASCADE' option +SELECT sum(id) FROM tru_pk_ftable; -- 55 +TRUNCATE tru_pk_ftable; -- failed by FK reference +TRUNCATE tru_pk_ftable CASCADE; +SELECT count(*) FROM tru_pk_ftable; -- 0 +SELECT count(*) FROM tru_fk_table; -- also truncated,0 + +-- truncate two tables at a command +INSERT INTO tru_ftable (SELECT x FROM generate_series(1,8) x); +INSERT INTO tru_pk_ftable (SELECT x FROM generate_series(3,10) x); +SELECT count(*) from tru_ftable; -- 8 +SELECT count(*) from tru_pk_ftable; -- 8 +TRUNCATE tru_ftable, tru_pk_ftable CASCADE; +SELECT count(*) from tru_ftable; -- 0 +SELECT count(*) from tru_pk_ftable; -- 0 + +-- truncate with ONLY clause +TRUNCATE ONLY tru_ftable_parent; +SELECT sum(id) FROM tru_ftable_parent; -- 126 +TRUNCATE tru_ftable_parent; +SELECT count(*) FROM tru_ftable_parent; -- 0 + +-- in case when remote table has inherited children +CREATE TABLE tru_rtable0_child () INHERITS (tru_rtable0); +INSERT INTO tru_rtable0 (SELECT x FROM generate_series(5,9) x); +INSERT INTO tru_rtable0_child (SELECT x FROM generate_series(10,14) x); +SELECT sum(id) FROM tru_ftable; -- 95 + +TRUNCATE ONLY tru_ftable; -- truncate only parent portion +SELECT sum(id) FROM tru_ftable; -- 60 + +INSERT INTO tru_rtable0 (SELECT x FROM generate_series(21,25) x); +SELECT sum(id) FROM tru_ftable; -- 175 +TRUNCATE tru_ftable; -- truncate both of parent and child +SELECT count(*) FROM tru_ftable; -- empty + +-- cleanup +DROP FOREIGN TABLE tru_ftable_parent, tru_ftable_child, tru_pk_ftable,tru_ftable__p1,tru_ftable; +DROP TABLE tru_rtable0, tru_rtable1, tru_ptable, tru_ptable__p0, tru_pk_table, tru_fk_table, +tru_rtable_parent,tru_rtable_child, tru_rtable0_child; + +-- =================================================================== -- test IMPORT FOREIGN SCHEMA -- =================================================================== |