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Add more tests for foreign key constraints on hypertables

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Sven Klemm 2024-07-18 10:21:57 +02:00 committed by Sven Klemm
parent 640cb377a2
commit 6d83e0584d
2 changed files with 531 additions and 0 deletions
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322
tsl/test/expected/foreign_keys.out
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@ -580,3 +580,325 @@ ERROR: hypertables cannot be used as foreign key references of hypertables
DROP TABLE event; DROP TABLE event;
DROP TABLE event2; DROP TABLE event2;
DROP TABLE metrics; DROP TABLE metrics;
-- test FK behavior with different cascading configurations
CREATE TABLE fk_no_action(fk_no_action text primary key);
CREATE TABLE fk_restrict(fk_restrict text primary key);
CREATE TABLE fk_cascade(fk_cascade text primary key);
CREATE TABLE fk_set_null(fk_set_null text primary key);
CREATE TABLE fk_set_default(fk_set_default text primary key);
CREATE TABLE ht(
time timestamptz not null,
fk_no_action text references fk_no_action(fk_no_action) ON DELETE NO ACTION ON UPDATE NO ACTION,
fk_restrict text references fk_restrict(fk_restrict) ON DELETE RESTRICT ON UPDATE RESTRICT,
fk_cascade text references fk_cascade(fk_cascade) ON DELETE CASCADE ON UPDATE CASCADE,
fk_set_null text references fk_set_null(fk_set_null) ON DELETE SET NULL ON UPDATE SET NULL,
fk_set_default text default 'default' references fk_set_default(fk_set_default) ON DELETE SET DEFAULT ON UPDATE SET DEFAULT
);
SELECT table_name FROM create_hypertable('ht', 'time');
table_name
------------
ht
(1 row)
ALTER TABLE ht SET(timescaledb.compress, timescaledb.compress_segmentby='fk_no_action,fk_restrict,fk_cascade,fk_set_null,fk_set_default');
NOTICE: default order by for hypertable "ht" is set to ""time" DESC"
\set ON_ERROR_STOP 0
INSERT INTO fk_set_default(fk_set_default) VALUES ('default');
INSERT INTO ht(time) VALUES ('2020-01-01');
-- NO ACTION
-- should fail with foreign key violation
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
ERROR: insert or update on table "_hyper_13_14_chunk" violates foreign key constraint "14_14_ht_fk_no_action_fkey"
-- ON UPDATE NO ACTION
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
-- should error
UPDATE fk_no_action SET fk_no_action = 'fk_no_action_updated';
ERROR: update or delete on table "fk_no_action" violates foreign key constraint "ht_fk_no_action_fkey" on table "ht"
ROLLBACK;
-- ON UPDATE NO ACTION with compression
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should error
UPDATE fk_no_action SET fk_no_action = 'fk_no_action_updated';
ERROR: update or delete on table "fk_no_action" violates foreign key constraint "ht_fk_no_action_fkey" on table "ht"
ROLLBACK;
-- ON DELETE NO ACTION
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
-- should error
DELETE FROM fk_no_action;
ERROR: update or delete on table "fk_no_action" violates foreign key constraint "ht_fk_no_action_fkey" on table "ht"
ROLLBACK;
-- ON DELETE NO ACTION with compression
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should error
DELETE FROM fk_no_action;
ERROR: update or delete on table "fk_no_action" violates foreign key constraint "ht_fk_no_action_fkey" on table "ht"
ROLLBACK;
-- RESTRICT
-- should fail with foreign key violation
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
ERROR: insert or update on table "_hyper_13_14_chunk" violates foreign key constraint "14_15_ht_fk_restrict_fkey"
-- ON UPDATE RESTRICT
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
-- should error
UPDATE fk_restrict SET fk_restrict = 'fk_restrict_updated';
ERROR: update or delete on table "fk_restrict" violates foreign key constraint "ht_fk_restrict_fkey" on table "ht"
ROLLBACK;
-- ON UPDATE RESTRICT with compression
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should error
UPDATE fk_restrict SET fk_restrict = 'fk_restrict_updated';
ERROR: update or delete on table "fk_restrict" violates foreign key constraint "ht_fk_restrict_fkey" on table "ht"
ROLLBACK;
-- ON DELETE RESTRICT
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
-- should error
DELETE FROM fk_restrict;
ERROR: update or delete on table "fk_restrict" violates foreign key constraint "ht_fk_restrict_fkey" on table "ht"
ROLLBACK;
-- ON DELETE RESTRICT with compression
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should error
DELETE FROM fk_restrict;
ERROR: update or delete on table "fk_restrict" violates foreign key constraint "ht_fk_restrict_fkey" on table "ht"
ROLLBACK;
-- CASCADE
-- should fail with foreign key violation
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
ERROR: insert or update on table "_hyper_13_14_chunk" violates foreign key constraint "14_13_ht_fk_cascade_fkey"
-- ON UPDATE CASCADE
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
-- should cascade
UPDATE fk_cascade SET fk_cascade = 'fk_cascade_updated';
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+--------------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | fk_cascade_updated | | default
(2 rows)
ROLLBACK;
-- ON UPDATE CASCADE with compression
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should cascade
UPDATE fk_cascade SET fk_cascade = 'fk_cascade_updated';
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+--------------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | fk_cascade_updated | | default
(2 rows)
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
QUERY PLAN
-----------------------------------------------------------------------------
Custom Scan (DecompressChunk) on _hyper_13_14_chunk (actual rows=2 loops=1)
-> Seq Scan on compress_hyper_14_19_chunk (actual rows=2 loops=1)
(2 rows)
ROLLBACK;
-- ON DELETE CASCADE
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
-- should cascade
DELETE FROM fk_cascade;
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
(1 row)
ROLLBACK;
-- ON DELETE CASCADE with compression
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should cascade
DELETE FROM fk_cascade;
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
(1 row)
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
QUERY PLAN
-----------------------------------------------------------------------------
Custom Scan (DecompressChunk) on _hyper_13_14_chunk (actual rows=1 loops=1)
-> Seq Scan on compress_hyper_14_20_chunk (actual rows=1 loops=1)
(2 rows)
ROLLBACK;
-- SET NULL
-- should fail with foreign key violation
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
ERROR: insert or update on table "_hyper_13_14_chunk" violates foreign key constraint "14_17_ht_fk_set_null_fkey"
-- ON UPDATE SET NULL
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
-- should set column to null
UPDATE fk_set_null SET fk_set_null = 'fk_set_null_updated';
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | | | default
(2 rows)
ROLLBACK;
-- ON UPDATE SET NULL with compression
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should set column to null
UPDATE fk_set_null SET fk_set_null = 'fk_set_null_updated';
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | | | default
(2 rows)
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
QUERY PLAN
-----------------------------------------------------------------------------
Custom Scan (DecompressChunk) on _hyper_13_14_chunk (actual rows=2 loops=1)
-> Seq Scan on compress_hyper_14_21_chunk (actual rows=2 loops=1)
(2 rows)
ROLLBACK;
-- ON DELETE SET NULL
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
-- should set column to null
DELETE FROM fk_set_null;
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | | | default
(2 rows)
ROLLBACK;
-- ON DELETE SET NULL with compression
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
count
-------
1
(1 row)
-- should set column to null
DELETE FROM fk_set_null;
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | | | default
(2 rows)
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
QUERY PLAN
-----------------------------------------------------------------------------
Custom Scan (DecompressChunk) on _hyper_13_14_chunk (actual rows=2 loops=1)
-> Seq Scan on compress_hyper_14_22_chunk (actual rows=2 loops=1)
(2 rows)
ROLLBACK;
-- SET DEFAULT
-- should fail with foreign key violation
INSERT INTO ht(time, fk_set_default) VALUES ('2020-01-01', 'fk_set_default');
ERROR: insert or update on table "_hyper_13_14_chunk" violates foreign key constraint "14_16_ht_fk_set_default_fkey"
-- set default is not supported for hypertables so these will fail
BEGIN;
INSERT INTO fk_set_default(fk_set_default) VALUES ('fk_set_default');
INSERT INTO ht(time, fk_set_default) VALUES ('2020-01-01', 'fk_set_default');
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | | | fk_set_default
(2 rows)
UPDATE fk_set_default SET fk_set_default = 'fk_set_default_updated' WHERE fk_set_default = 'fk_set_default';
ERROR: update or delete on table "fk_set_default" violates foreign key constraint "ht_fk_set_default_fkey" on table "ht"
ROLLBACK;
BEGIN;
INSERT INTO fk_set_default(fk_set_default) VALUES ('fk_set_default');
INSERT INTO ht(time, fk_set_default) VALUES ('2020-01-01', 'fk_set_default');
SELECT * FROM ht;
time | fk_no_action | fk_restrict | fk_cascade | fk_set_null | fk_set_default
------------------------------+--------------+-------------+------------+-------------+----------------
Wed Jan 01 00:00:00 2020 PST | | | | | default
Wed Jan 01 00:00:00 2020 PST | | | | | fk_set_default
(2 rows)
DELETE FROM fk_set_default WHERE fk_set_default = 'fk_set_default';
ERROR: update or delete on table "fk_set_default" violates foreign key constraint "ht_fk_set_default_fkey" on table "ht"
ROLLBACK;

209
tsl/test/sql/foreign_keys.sql
View File

@ -395,3 +395,212 @@ SELECT table_name FROM create_hypertable('event2', 'time');
DROP TABLE event; DROP TABLE event;
DROP TABLE event2; DROP TABLE event2;
DROP TABLE metrics; DROP TABLE metrics;
-- test FK behavior with different cascading configurations
CREATE TABLE fk_no_action(fk_no_action text primary key);
CREATE TABLE fk_restrict(fk_restrict text primary key);
CREATE TABLE fk_cascade(fk_cascade text primary key);
CREATE TABLE fk_set_null(fk_set_null text primary key);
CREATE TABLE fk_set_default(fk_set_default text primary key);
CREATE TABLE ht(
time timestamptz not null,
fk_no_action text references fk_no_action(fk_no_action) ON DELETE NO ACTION ON UPDATE NO ACTION,
fk_restrict text references fk_restrict(fk_restrict) ON DELETE RESTRICT ON UPDATE RESTRICT,
fk_cascade text references fk_cascade(fk_cascade) ON DELETE CASCADE ON UPDATE CASCADE,
fk_set_null text references fk_set_null(fk_set_null) ON DELETE SET NULL ON UPDATE SET NULL,
fk_set_default text default 'default' references fk_set_default(fk_set_default) ON DELETE SET DEFAULT ON UPDATE SET DEFAULT
);
SELECT table_name FROM create_hypertable('ht', 'time');
ALTER TABLE ht SET(timescaledb.compress, timescaledb.compress_segmentby='fk_no_action,fk_restrict,fk_cascade,fk_set_null,fk_set_default');
\set ON_ERROR_STOP 0
INSERT INTO fk_set_default(fk_set_default) VALUES ('default');
INSERT INTO ht(time) VALUES ('2020-01-01');
-- NO ACTION
-- should fail with foreign key violation
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
-- ON UPDATE NO ACTION
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
-- should error
UPDATE fk_no_action SET fk_no_action = 'fk_no_action_updated';
ROLLBACK;
-- ON UPDATE NO ACTION with compression
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should error
UPDATE fk_no_action SET fk_no_action = 'fk_no_action_updated';
ROLLBACK;
-- ON DELETE NO ACTION
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
-- should error
DELETE FROM fk_no_action;
ROLLBACK;
-- ON DELETE NO ACTION with compression
BEGIN;
INSERT INTO fk_no_action(fk_no_action) VALUES ('fk_no_action');
INSERT INTO ht(time, fk_no_action) VALUES ('2020-01-01', 'fk_no_action');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should error
DELETE FROM fk_no_action;
ROLLBACK;
-- RESTRICT
-- should fail with foreign key violation
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
-- ON UPDATE RESTRICT
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
-- should error
UPDATE fk_restrict SET fk_restrict = 'fk_restrict_updated';
ROLLBACK;
-- ON UPDATE RESTRICT with compression
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should error
UPDATE fk_restrict SET fk_restrict = 'fk_restrict_updated';
ROLLBACK;
-- ON DELETE RESTRICT
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
-- should error
DELETE FROM fk_restrict;
ROLLBACK;
-- ON DELETE RESTRICT with compression
BEGIN;
INSERT INTO fk_restrict(fk_restrict) VALUES ('fk_restrict');
INSERT INTO ht(time, fk_restrict) VALUES ('2020-01-01', 'fk_restrict');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should error
DELETE FROM fk_restrict;
ROLLBACK;
-- CASCADE
-- should fail with foreign key violation
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
-- ON UPDATE CASCADE
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
-- should cascade
UPDATE fk_cascade SET fk_cascade = 'fk_cascade_updated';
SELECT * FROM ht;
ROLLBACK;
-- ON UPDATE CASCADE with compression
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should cascade
UPDATE fk_cascade SET fk_cascade = 'fk_cascade_updated';
SELECT * FROM ht;
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
ROLLBACK;
-- ON DELETE CASCADE
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
-- should cascade
DELETE FROM fk_cascade;
SELECT * FROM ht;
ROLLBACK;
-- ON DELETE CASCADE with compression
BEGIN;
INSERT INTO fk_cascade(fk_cascade) VALUES ('fk_cascade');
INSERT INTO ht(time, fk_cascade) VALUES ('2020-01-01', 'fk_cascade');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should cascade
DELETE FROM fk_cascade;
SELECT * FROM ht;
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
ROLLBACK;
-- SET NULL
-- should fail with foreign key violation
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
-- ON UPDATE SET NULL
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
-- should set column to null
UPDATE fk_set_null SET fk_set_null = 'fk_set_null_updated';
SELECT * FROM ht;
ROLLBACK;
-- ON UPDATE SET NULL with compression
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should set column to null
UPDATE fk_set_null SET fk_set_null = 'fk_set_null_updated';
SELECT * FROM ht;
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
ROLLBACK;
-- ON DELETE SET NULL
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
-- should set column to null
DELETE FROM fk_set_null;
SELECT * FROM ht;
ROLLBACK;
-- ON DELETE SET NULL with compression
BEGIN;
INSERT INTO fk_set_null(fk_set_null) VALUES ('fk_set_null');
INSERT INTO ht(time, fk_set_null) VALUES ('2020-01-01', 'fk_set_null');
SELECT count(compress_chunk(ch)) FROM show_chunks('ht') ch;
-- should set column to null
DELETE FROM fk_set_null;
SELECT * FROM ht;
EXPLAIN (analyze, costs off, timing off, summary off) SELECT * FROM ht;
ROLLBACK;
-- SET DEFAULT
-- should fail with foreign key violation
INSERT INTO ht(time, fk_set_default) VALUES ('2020-01-01', 'fk_set_default');
-- set default is not supported for hypertables so these will fail
BEGIN;
INSERT INTO fk_set_default(fk_set_default) VALUES ('fk_set_default');
INSERT INTO ht(time, fk_set_default) VALUES ('2020-01-01', 'fk_set_default');
SELECT * FROM ht;
UPDATE fk_set_default SET fk_set_default = 'fk_set_default_updated' WHERE fk_set_default = 'fk_set_default';
ROLLBACK;
BEGIN;
INSERT INTO fk_set_default(fk_set_default) VALUES ('fk_set_default');
INSERT INTO ht(time, fk_set_default) VALUES ('2020-01-01', 'fk_set_default');
SELECT * FROM ht;
DELETE FROM fk_set_default WHERE fk_set_default = 'fk_set_default';
ROLLBACK;