-- This file and its contents are licensed under the Timescale License.
-- Please see the included NOTICE for copyright information and
-- LICENSE-TIMESCALE for a copy of the license.

--  These tests work for PG14 or greater
-- Remember to corordinate any changes to functionality with the Cloud
-- Storage team. Tests for the following API:
-- * freeze_chunk
-- * drop_chunk
-- * attach_foreign_table_chunk
-- * hypertable_osm_range_update

\set EXPLAIN 'EXPLAIN (COSTS OFF)'

CREATE OR REPLACE VIEW chunk_view AS
  SELECT
    ht.table_name AS hypertable_name,
    srcch.schema_name AS schema_name,
    srcch.table_name AS chunk_name,
    _timescaledb_functions.to_timestamp(dimsl.range_start)
     AS range_start,
    _timescaledb_functions.to_timestamp(dimsl.range_end)
     AS range_end
  FROM _timescaledb_catalog.chunk srcch
    INNER JOIN _timescaledb_catalog.hypertable ht ON ht.id = srcch.hypertable_id
    INNER JOIN _timescaledb_catalog.chunk_constraint chcons ON srcch.id = chcons.chunk_id
    INNER JOIN _timescaledb_catalog.dimension dim ON srcch.hypertable_id = dim.hypertable_id
    INNER JOIN _timescaledb_catalog.dimension_slice dimsl ON dim.id = dimsl.dimension_id
      AND chcons.dimension_slice_id = dimsl.id;
GRANT SELECT on chunk_view TO PUBLIC;

\c :TEST_DBNAME :ROLE_SUPERUSER
-- fake presence of timescaledb_osm
INSERT INTO pg_extension(oid,extname,extowner,extnamespace,extrelocatable,extversion) SELECT 1,'timescaledb_osm',10,11,false,'1.0';

CREATE SCHEMA test1;
GRANT CREATE ON SCHEMA test1 TO :ROLE_DEFAULT_PERM_USER;
GRANT USAGE ON SCHEMA test1 TO :ROLE_DEFAULT_PERM_USER;
GRANT USAGE ON SCHEMA test1 TO :ROLE_4;

-- mock hooks for OSM interaction with timescaledb
CREATE OR REPLACE FUNCTION ts_setup_osm_hook( ) RETURNS VOID
AS :TSL_MODULE_PATHNAME LANGUAGE C VOLATILE;

CREATE OR REPLACE FUNCTION ts_undo_osm_hook( ) RETURNS VOID
AS :TSL_MODULE_PATHNAME LANGUAGE C VOLATILE;

SET ROLE :ROLE_DEFAULT_PERM_USER;
CREATE TABLE test1.hyper1 (time bigint, temp float);

SELECT create_hypertable('test1.hyper1', 'time', chunk_time_interval => 10);

INSERT INTO test1.hyper1 VALUES (10, 0.5);
INSERT INTO test1.hyper1 VALUES (30, 0.5);

SELECT chunk_schema as "CHSCHEMA",  chunk_name as "CHNAME",
       range_start_integer, range_end_integer
FROM timescaledb_information.chunks
WHERE hypertable_name = 'hyper1' and hypertable_schema = 'test1'
ORDER BY chunk_name ;

----- TESTS for freeze and unfreeze chunk ------------
--TEST internal api that freezes a chunk
--freeze one of the chunks
SELECT chunk_schema || '.' ||  chunk_name as "CHNAME", chunk_name as "CHUNK_NAME"
FROM timescaledb_information.chunks
WHERE hypertable_name = 'hyper1' and hypertable_schema = 'test1'
ORDER BY chunk_name LIMIT 1
\gset

-- Freeze
SELECT  _timescaledb_functions.freeze_chunk( :'CHNAME');

SELECT * from test1.hyper1 ORDER BY 1;

-- TEST updates and deletes on frozen chunk should fail
\set ON_ERROR_STOP 0

SELECT * from test1.hyper1 ORDER BY 1;

-- Value (time = 20) does not exist
UPDATE test1.hyper1 SET temp = 40 WHERE time = 20;
-- Frozen chunk is affected
UPDATE test1.hyper1 SET temp = 40 WHERE temp = 0.5;
-- Frozen chunk is affected
UPDATE test1.hyper1 SET temp = 40 WHERE time = 10;
-- Frozen chunk is affected
DELETE FROM test1.hyper1 WHERE time = 10;

SELECT * from test1.hyper1 ORDER BY 1;

BEGIN;
DELETE FROM test1.hyper1 WHERE time = 20;
DELETE FROM test1.hyper1 WHERE temp = 0.5;
ROLLBACK;

-- TEST update on unfrozen chunk should be possible
BEGIN;
SELECT * FROM test1.hyper1;
UPDATE test1.hyper1 SET temp = 40 WHERE time = 30;
SELECT * FROM test1.hyper1;
ROLLBACK;

-- Test with cast (chunk path pruning can not be done during query planning)
BEGIN;
SELECT * FROM test1.hyper1 WHERE time = 30;
UPDATE test1.hyper1 SET temp = 40 WHERE time = 30::text::float;
SELECT * FROM test1.hyper1 WHERE time = 30;
ROLLBACK;

-- TEST delete on unfrozen chunks should be possible
BEGIN;
SELECT * from test1.hyper1 ORDER BY 1;
DELETE FROM test1.hyper1 WHERE time = 30;
SELECT * from test1.hyper1 ORDER BY 1;
ROLLBACK;

-- Test with cast
BEGIN;
SELECT * FROM test1.hyper1 WHERE time = 30;
DELETE FROM test1.hyper1 WHERE time = 30::text::float;
SELECT * FROM test1.hyper1 WHERE time = 30;
ROLLBACK;

-- TEST inserts into a frozen chunk fails
INSERT INTO test1.hyper1 VALUES ( 11, 11);

-- Test truncating table should fail
TRUNCATE :CHNAME;

SELECT * from test1.hyper1 ORDER BY 1;

\set ON_ERROR_STOP 1

--insert into non-frozen chunk works
INSERT INTO test1.hyper1 VALUES ( 31, 31);
SELECT * from test1.hyper1 ORDER BY 1;

-- TEST unfreeze frozen chunk and then drop
SELECT table_name, status
FROM _timescaledb_catalog.chunk WHERE table_name = :'CHUNK_NAME';

SELECT  _timescaledb_functions.unfreeze_chunk( :'CHNAME');

SELECT tgname, tgtype FROM pg_trigger WHERE tgrelid = :'CHNAME'::regclass ORDER BY tgname, tgtype;

--verify status in catalog
SELECT table_name, status
FROM _timescaledb_catalog.chunk WHERE table_name = :'CHUNK_NAME';

-- Test update works after unfreeze
UPDATE test1.hyper1 SET temp = 40;

-- Test delete works after unfreeze
DELETE FROM test1.hyper1;

--unfreezing again works
SELECT  _timescaledb_functions.unfreeze_chunk( :'CHNAME');
SELECT  _timescaledb_functions.drop_chunk( :'CHNAME');

-- TEST freeze_chunk api on a chunk that is compressed
CREATE TABLE public.table_to_compress (time date NOT NULL, acq_id bigint, value bigint);
CREATE INDEX idx_table_to_compress_acq_id ON public.table_to_compress(acq_id);
SELECT create_hypertable('public.table_to_compress', 'time', chunk_time_interval => interval '1 day');
ALTER TABLE public.table_to_compress SET (timescaledb.compress, timescaledb.compress_segmentby = 'acq_id');

INSERT INTO public.table_to_compress VALUES ('2020-01-01', 1234567, 777888);
INSERT INTO public.table_to_compress VALUES ('2020-02-01', 567567, 890890);
INSERT INTO public.table_to_compress VALUES ('2020-02-10', 1234, 5678);

SELECT show_chunks('public.table_to_compress');

SELECT chunk_schema || '.' ||  chunk_name as "CHNAME", chunk_name as "CHUNK_NAME"
FROM timescaledb_information.chunks
WHERE hypertable_name = 'table_to_compress' and hypertable_schema = 'public'
ORDER BY chunk_name LIMIT 1
\gset

SELECT  compress_chunk( :'CHNAME');
SELECT  _timescaledb_functions.freeze_chunk( :'CHNAME');

SELECT table_name, status
FROM _timescaledb_catalog.chunk WHERE table_name = :'CHUNK_NAME';

--now chunk is frozen, cannot decompress
\set ON_ERROR_STOP 0
SELECT  decompress_chunk( :'CHNAME');
--insert into frozen chunk, should fail
INSERT INTO public.table_to_compress VALUES ('2020-01-01 10:00', 12, 77);
--touches all chunks
UPDATE public.table_to_compress SET value = 3;
--touches only frozen chunk
DELETE FROM public.table_to_compress WHERE time < '2020-01-02';
\set ON_ERROR_STOP 1
--try to refreeze
SELECT  _timescaledb_functions.freeze_chunk( :'CHNAME');

--touches non-frozen chunk
SELECT * from public.table_to_compress ORDER BY 1, 3;
DELETE FROM public.table_to_compress WHERE time > '2020-01-02';

SELECT * from public.table_to_compress ORDER BY 1, 3;

--TEST cannot drop frozen chunk, no error is reported.
-- simply skips
SELECT drop_chunks('table_to_compress', older_than=> '1 day'::interval);

--unfreeze and drop it
SELECT  _timescaledb_functions.unfreeze_chunk( :'CHNAME');
SELECT  _timescaledb_functions.drop_chunk( :'CHNAME');

--add a new chunk
INSERT INTO public.table_to_compress VALUES ('2019-01-01', 1234567, 777888);

--TEST  compress a frozen chunk fails
SELECT chunk_schema || '.' ||  chunk_name as "CHNAME", chunk_name as "CHUNK_NAME"
FROM timescaledb_information.chunks
WHERE hypertable_name = 'table_to_compress' and hypertable_schema = 'public'
ORDER BY chunk_name DESC LIMIT 1
\gset

SELECT  _timescaledb_functions.freeze_chunk( :'CHNAME');
\set ON_ERROR_STOP 0
SELECT  compress_chunk( :'CHNAME');
\set ON_ERROR_STOP 1

--TEST dropping a frozen chunk
--DO NOT CHANGE this behavior ---
-- frozen chunks cannot be dropped.

\set ON_ERROR_STOP 0
SELECT _timescaledb_functions.drop_chunk(:'CHNAME');
\set ON_ERROR_STOP 1

-- Prepare table for CAGG tests
TRUNCATE test1.hyper1;
INSERT INTO test1.hyper1(time, temp) values(30, 0.5), (31, 31);

--TEST drop_chunk in the presence of caggs. Does not affect cagg data
CREATE OR REPLACE FUNCTION hyper_dummy_now() RETURNS BIGINT
LANGUAGE SQL IMMUTABLE AS  'SELECT 100::BIGINT';
SELECT set_integer_now_func('test1.hyper1', 'hyper_dummy_now');

CREATE MATERIALIZED VIEW hyper1_cagg WITH (timescaledb.continuous, timescaledb.materialized_only=false)
AS SELECT time_bucket( 5, "time") as bucket, count(*)
FROM test1.hyper1 GROUP BY 1;
SELECT * FROM hyper1_cagg ORDER BY 1;

--now freeze chunk and try to  drop it
SELECT chunk_schema || '.' ||  chunk_name as "CHNAME1", chunk_name as "CHUNK_NAME"
FROM timescaledb_information.chunks
WHERE hypertable_name = 'hyper1' and hypertable_schema = 'test1'
ORDER BY chunk_name LIMIT 1
\gset

SELECT  _timescaledb_functions.freeze_chunk( :'CHNAME1');

--cannot drop frozen chunk
\set ON_ERROR_STOP 0
SELECT  _timescaledb_functions.drop_chunk( :'CHNAME1');
\set ON_ERROR_STOP 1

-- unfreeze the chunk, then drop the single chunk
SELECT  _timescaledb_functions.unfreeze_chunk( :'CHNAME1');

--drop the single chunk and verify that cagg is unaffected.
SELECT * FROM test1.hyper1 ORDER BY 1;

SELECT  _timescaledb_functions.drop_chunk( :'CHNAME1');

SELECT * from test1.hyper1 ORDER BY 1;
SELECT * FROM hyper1_cagg ORDER BY 1;

-- check that dropping cagg triggers OSM callback
SELECT ts_setup_osm_hook();
BEGIN;
DROP MATERIALIZED VIEW hyper1_cagg CASCADE;
DROP TABLE test1.hyper1;
ROLLBACK;
BEGIN;
DROP TABLE test1.hyper1 CASCADE;
ROLLBACK;
SELECT ts_undo_osm_hook();

--TEST error case (un)freeze a non-chunk
CREATE TABLE nochunk_tab( a timestamp, b integer);
\set ON_ERROR_STOP 0
SELECT _timescaledb_functions.freeze_chunk('nochunk_tab');
SELECT _timescaledb_functions.unfreeze_chunk('nochunk_tab');
\set ON_ERROR_STOP 1

----- TESTS for attach_osm_table_chunk ------------
--TEST for attaching a foreign table as a chunk
--need superuser access to create foreign data server
\c :TEST_DBNAME :ROLE_SUPERUSER
CREATE DATABASE postgres_fdw_db;
GRANT ALL PRIVILEGES ON DATABASE postgres_fdw_db TO :ROLE_4;

\c postgres_fdw_db :ROLE_4
CREATE TABLE fdw_table( timec timestamptz NOT NULL , acq_id bigint, value bigint);
INSERT INTO fdw_table VALUES( '2020-01-01 01:00', 100, 1000);

--create foreign server and user mappings as superuser
\c :TEST_DBNAME :ROLE_SUPERUSER

SELECT current_setting('port') as "PORTNO" \gset

CREATE EXTENSION postgres_fdw;
CREATE SERVER s3_server FOREIGN DATA WRAPPER postgres_fdw
OPTIONS ( host 'localhost', dbname 'postgres_fdw_db', port :'PORTNO');
GRANT USAGE ON FOREIGN SERVER s3_server TO :ROLE_4;

CREATE USER MAPPING FOR :ROLE_4 SERVER s3_server
OPTIONS (  user :'ROLE_4' , password :'ROLE_4_PASS');

ALTER USER MAPPING FOR :ROLE_4 SERVER s3_server
OPTIONS (ADD password_required 'false');

\c :TEST_DBNAME :ROLE_4;
-- this is a stand-in for the OSM table
CREATE FOREIGN TABLE child_fdw_table
(timec timestamptz NOT NULL, acq_id bigint, value bigint)
 SERVER s3_server OPTIONS ( schema_name 'public', table_name 'fdw_table');

--now attach foreign table as a chunk of the hypertable.
CREATE TABLE ht_try(timec timestamptz NOT NULL, acq_id bigint, value bigint);
SELECT create_hypertable('ht_try', 'timec', chunk_time_interval => interval '1 day');
INSERT INTO ht_try VALUES ('2022-05-05 01:00', 222, 222);

SELECT * FROM child_fdw_table;
-- test size functions on foreign table
SELECT * FROM _timescaledb_functions.relation_approximate_size('child_fdw_table');
SELECT * FROM _timescaledb_functions.relation_size('child_fdw_table');

-- error should be thrown as the hypertable does not yet have an associated tiered chunk
\set ON_ERROR_STOP 0
SELECT _timescaledb_functions.hypertable_osm_range_update('ht_try','2020-01-01 01:00'::timestamptz, '2020-01-01 03:00');
\set ON_ERROR_STOP 1

SELECT _timescaledb_functions.attach_osm_table_chunk('ht_try', 'child_fdw_table');
-- check hypertable status
SELECT status FROM _timescaledb_catalog.hypertable WHERE table_name = 'ht_try';
-- must also update the range since the created chunk contains data
SELECT _timescaledb_functions.hypertable_osm_range_update('ht_try', '2020-01-01'::timestamptz, '2020-01-02');

-- OSM chunk is not visible in chunks view
SELECT chunk_name, range_start, range_end
FROM timescaledb_information.chunks
WHERE hypertable_name = 'ht_try' ORDER BY 1;

SELECT chunk_name, range_start, range_end
FROM chunk_view
WHERE hypertable_name = 'ht_try'
ORDER BY chunk_name;

SELECT * FROM ht_try ORDER BY 1;

-- Check that the direct select from OSM chunk doesn't lead to bad effects.
SELECT * FROM child_fdw_table;

SELECT relname, relowner::regrole FROM pg_class
WHERE relname in ( select chunk_name FROM chunk_view
                   WHERE hypertable_name = 'ht_try' )
ORDER BY relname;

SELECT inhrelid::regclass
FROM pg_inherits WHERE inhparent = 'ht_try'::regclass ORDER BY 1;

--TEST chunk exclusion code does not filter out OSM chunk
SELECT * from ht_try ORDER BY 1;
SELECT * from ht_try WHERE timec < '2022-01-01 01:00' ORDER BY 1;
SELECT * from ht_try WHERE timec = '2020-01-01 01:00' ORDER BY 1;
SELECT * from ht_try WHERE  timec > '2000-01-01 01:00' and timec < '2022-01-01 01:00' ORDER BY 1;

SELECT * from ht_try WHERE timec > '2020-01-01 01:00' ORDER BY 1;

-- test ordered append
BEGIN;
-- before updating the ranges
:EXPLAIN SELECT * FROM ht_try ORDER BY 1;
-- range before update
SELECT cc.chunk_id, c.table_name, c.status, c.osm_chunk, cc.dimension_slice_id, ds.range_start, ds.range_end
FROM _timescaledb_catalog.chunk c, _timescaledb_catalog.chunk_constraint cc, _timescaledb_catalog.dimension_slice ds
WHERE c.table_name = 'child_fdw_table' AND cc.chunk_id = c.id AND ds.id = cc.dimension_slice_id;

SELECT _timescaledb_functions.hypertable_osm_range_update('ht_try', '2020-01-01 01:00'::timestamptz, '2020-01-02');
SELECT id, schema_name, table_name, status FROM _timescaledb_catalog.hypertable WHERE table_name = 'ht_try';
-- verify range was updated
SELECT cc.chunk_id, c.table_name, c.status, c.osm_chunk, cc.dimension_slice_id, ds.range_start, ds.range_end
FROM _timescaledb_catalog.chunk c, _timescaledb_catalog.chunk_constraint cc, _timescaledb_catalog.dimension_slice ds
WHERE c.table_name = 'child_fdw_table' AND cc.chunk_id = c.id AND ds.id = cc.dimension_slice_id;
-- should be ordered append now
:EXPLAIN SELECT * FROM ht_try ORDER BY 1;
SELECT * FROM ht_try ORDER BY 1;
-- test invalid range - should not be ordered append
SELECT _timescaledb_functions.hypertable_osm_range_update('ht_try');
:EXPLAIN SELECT * from ht_try ORDER BY 1;
SELECT * from ht_try ORDER BY 1;
ROLLBACK;

\set ON_ERROR_STOP 0
-- test that error is produced when range_start < range_end
SELECT _timescaledb_functions.hypertable_osm_range_update('ht_try', '2020-01-02 01:00'::timestamptz, '2020-01-02 00:00');
-- error when range overlaps
SELECT _timescaledb_functions.hypertable_osm_range_update('ht_try', '2022-05-05 01:00'::timestamptz, '2022-05-06');
\set ON_ERROR_STOP 1

-- test that approximate size function works when a osm chunk is present
SELECT * FROM hypertable_approximate_size('ht_try');

--TEST GUC variable to enable/disable OSM chunk
SET timescaledb.enable_tiered_reads=false;
:EXPLAIN SELECT * from ht_try;
:EXPLAIN SELECT * from ht_try WHERE timec > '2022-01-01 01:00';
:EXPLAIN SELECT * from ht_try WHERE timec < '2023-01-01 01:00';
SET timescaledb.enable_tiered_reads=true;
:EXPLAIN SELECT * from ht_try;
-- foreign chunk contains data from Jan 2020, so it is skipped during planning
:EXPLAIN SELECT * from ht_try WHERE timec > '2022-01-01 01:00';
:EXPLAIN SELECT * from ht_try WHERE timec < '2023-01-01 01:00';

-- Test forceful refreshment. Here we simulate the situation that we've seen
-- with tiered data when `timescaledb.enable_tiered_reads` were disabled on the
-- server level. In that case we would not see materialized tiered data and
-- we wouldn't be able to re-materialize the data using a normal refresh call
-- because it would skip previously materialized ranges, but it should be
-- possible with `force=>true` parameter.
CREATE MATERIALIZED VIEW ht_try_weekly
WITH (timescaledb.continuous) AS
SELECT time_bucket(interval '1 week', timec) AS ts_bucket, avg(value)
FROM ht_try
GROUP BY 1
WITH NO DATA;
SELECT * FROM ht_try_weekly;
SET timescaledb.enable_tiered_reads=false;
CALL refresh_continuous_aggregate('ht_try_weekly', '2019-12-29', '2020-01-10', force=>false);
SELECT * FROM ht_try_weekly;
SET timescaledb.enable_tiered_reads=true;
CALL refresh_continuous_aggregate('ht_try_weekly', '2019-12-29', '2020-01-10', force=>true);
SELECT * FROM ht_try_weekly;
DROP MATERIALIZED VIEW ht_try_weekly;

-- Test refresh policy with different settings of `include_tiered_data` parameter
CREATE FUNCTION create_test_cagg(include_tiered_data BOOL)
RETURNS INTEGER AS
$$
DECLARE
	cfg jsonb;
	job_id INTEGER;
BEGIN
	CREATE MATERIALIZED VIEW ht_try_weekly
	WITH (timescaledb.continuous) AS
	SELECT time_bucket(interval '1 week', timec) AS ts_bucket, avg(value)
	FROM ht_try
	GROUP BY 1
	WITH NO DATA;

	job_id := add_continuous_aggregate_policy(
		'ht_try_weekly',
		start_offset => NULL,
		end_offset => INTERVAL '1 hour',
		schedule_interval => INTERVAL '1 hour',
		include_tiered_data => include_tiered_data
	);

	cfg := config FROM _timescaledb_config.bgw_job WHERE id = job_id;
	RAISE NOTICE 'config: %', jsonb_pretty(cfg);

	RETURN job_id;
END
$$ LANGUAGE plpgsql;

-- include tiered data
SELECT create_test_cagg(true) AS job_id \gset
CALL run_job(:job_id);
SELECT * FROM ht_try_weekly ORDER BY 1;
DROP MATERIALIZED VIEW ht_try_weekly;

-- exclude tiered data
SELECT create_test_cagg(false) AS job_id \gset
CALL run_job(:job_id);
SELECT * FROM ht_try_weekly ORDER BY 1;
DROP MATERIALIZED VIEW ht_try_weekly;

-- default behavior: use instance-wide GUC value
SELECT create_test_cagg(null) AS job_id \gset
CALL run_job(:job_id);
SELECT * FROM ht_try_weekly ORDER BY 1;
DROP MATERIALIZED VIEW ht_try_weekly;

-- This test verifies that a bugfix regarding the way `ROWID_VAR`s are adjusted
-- in the chunks' targetlists on DELETE/UPDATE works (including partially
-- compressed chunks)
ALTER table ht_try SET (timescaledb.compress);
INSERT INTO ht_try VALUES ('2021-06-05 01:00', 10, 222);
SELECT compress_chunk(show_chunks('ht_try', newer_than => '2021-01-01'::timestamptz));
INSERT INTO ht_try VALUES ('2021-06-05 01:00', 10, 222);
DO $$
DECLARE
    r RECORD;
BEGIN
	EXPLAIN (COSTS OFF) UPDATE ht_try SET value = 2
	WHERE acq_id = 10 AND timec > now() - '15 years'::interval INTO r;
END
$$ LANGUAGE plpgsql;

-- Check that the direct select from OSM chunk doesn't lead to bad effects in
-- presence of compression.
SELECT * FROM child_fdw_table;

--TEST insert into a OSM chunk fails. actually any insert will fail. But we just need
-- to mock the hook and make sure the timescaledb code works correctly.

SELECT ts_setup_osm_hook();
\set ON_ERROR_STOP 0
--the mock hook returns true always. so cannot create a new chunk on the hypertable
INSERT INTO ht_try VALUES ('2022-06-05 01:00', 222, 222);
\set ON_ERROR_STOP 1
SELECT ts_undo_osm_hook();

-- TEST error have to be hypertable owner to attach a chunk to it
\c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
\set ON_ERROR_STOP 0
SELECT _timescaledb_functions.attach_osm_table_chunk('ht_try', 'child_fdw_table');

-- TEST error try to attach to non hypertable
CREATE TABLE non_ht (time bigint, temp float);
SELECT _timescaledb_functions.attach_osm_table_chunk('non_ht', 'child_fdw_table');

-- TEST drop OSM chunk
\c :TEST_DBNAME :ROLE_4
-- We need the OSM chunk for other tests so we run the test in a single
-- transaction so that we could roll it back in the end
BEGIN;
-- get OSM chunk id
SELECT c.id as osm_chunk_id, c.table_name as osm_chunk_name, ds.id as osm_dimension_slice
FROM _timescaledb_catalog.chunk c
JOIN _timescaledb_catalog.hypertable ht ON ht.id = c.hypertable_id
JOIN _timescaledb_catalog.chunk_constraint cc ON cc.chunk_id = c.id
JOIN _timescaledb_catalog.dimension_slice ds ON ds.id = cc.dimension_slice_id
WHERE ht.table_name = 'ht_try' AND osm_chunk = true \gset
\echo :osm_chunk_id, :osm_chunk_name, :osm_dimension_slice

-- drop OSM chunk
SELECT _timescaledb_functions.drop_osm_chunk('ht_try');

-- status should be 0 meaning hypertable doesn't have an OSM chunk
SELECT status FROM _timescaledb_catalog.hypertable WHERE table_name = 'ht_try';

-- chunk, chunk_constraint and dimension slice should have been cleaned up
SELECT FROM _timescaledb_catalog.chunk WHERE id = :osm_chunk_id;
SELECT FROM _timescaledb_catalog.chunk_constraint WHERE chunk_id = :osm_chunk_id;
SELECT FROM _timescaledb_catalog.dimension_slice WHERE id = :osm_dimension_slice;

-- foreign chunk no longer appears in the inheritance hierarchy
\d+ ht_try

-- verify that still can read from the table after catalog manipulations
EXPLAIN (ANALYZE, COSTS OFF, TIMING OFF, SUMMARY OFF) SELECT * FROM ht_try;
ROLLBACK;

-- TEST error out when trying to drop an OSM chunk from a hypertable that
-- doesn't have it
SELECT _timescaledb_functions.drop_osm_chunk('test1.hyper1');

-- TEST error out when trying to drop an OSM chunk from a regular table
SELECT _timescaledb_functions.drop_osm_chunk('non_ht');

\set ON_ERROR_STOP 1

-- TEST drop the hypertable and make sure foreign chunks are dropped as well --
\c :TEST_DBNAME :ROLE_4;
DROP TABLE ht_try;

SELECT relname FROM pg_class WHERE relname = 'child_fdw_table';

SELECT table_name, status, osm_chunk
FROM _timescaledb_catalog.chunk
WHERE hypertable_id IN (SELECT id from _timescaledb_catalog.hypertable
                        WHERE table_name = 'ht_try')
ORDER BY table_name;

-- TEST can create OSM chunk if there are constraints on the hypertable
\c :TEST_DBNAME :ROLE_4
CREATE TABLE measure( id integer PRIMARY KEY, mname varchar(10));
INSERT INTO measure VALUES( 1, 'temp');
INSERT INTO measure VALUES( 2, 'osmtemp');

CREATE TABLE devices( id integer PRIMARY KEY, devname varchar(10) );
INSERT INTO devices VALUES( 111, 'dev1');
INSERT INTO devices VALUES( 222, 'osmdev');

CREATE TABLE devicesref( id integer PRIMARY KEY, devname varchar(10) );
INSERT INTO devicesref VALUES( 44, 'devref');
INSERT INTO devicesref VALUES( 55, 'osmdevref');

CREATE TABLE hyper_constr  ( id integer, time bigint, temp float, mid integer
                             ,dev integer
                             ,devref integer
                             ,PRIMARY KEY (id, time)
                             ,FOREIGN KEY ( mid) REFERENCES measure(id)
                             ,FOREIGN KEY ( dev ) REFERENCES devices(id) ON DELETE CASCADE
                             ,FOREIGN KEY ( devref ) REFERENCES devicesref(id) ON DELETE
RESTRICT
                             ,CHECK ( temp > 10)
                           );

SELECT create_hypertable('hyper_constr', 'time', chunk_time_interval => 10);
INSERT INTO hyper_constr VALUES( 10, 200, 22, 1, 111, 44);

\c postgres_fdw_db :ROLE_4
CREATE TABLE fdw_hyper_constr(id integer, time bigint, temp float, mid integer, dev integer, devref integer);
INSERT INTO fdw_hyper_constr VALUES( 10, 100, 33, 2, 222, 55);

\c :TEST_DBNAME :ROLE_4
-- this is a stand-in for the OSM table
CREATE FOREIGN TABLE child_hyper_constr
( id integer NOT NULL, time bigint NOT NULL, temp float, mid integer, dev integer, devref integer)
 SERVER s3_server OPTIONS ( schema_name 'public', table_name 'fdw_hyper_constr');

--check constraints are automatically added for the foreign table
SELECT _timescaledb_functions.attach_osm_table_chunk('hyper_constr', 'child_hyper_constr');
-- was attached with data, so must update the range
SELECT _timescaledb_functions.hypertable_osm_range_update('hyper_constr', 100, 110);

SELECT table_name, status, osm_chunk
FROM _timescaledb_catalog.chunk
WHERE hypertable_id IN (SELECT id from _timescaledb_catalog.hypertable
                        WHERE table_name = 'hyper_constr')
ORDER BY table_name;

SELECT * FROM hyper_constr order by time;

--verify the check constraint exists on the OSM chunk
SELECT conname FROM pg_constraint
where conrelid = 'child_hyper_constr'::regclass ORDER BY 1;

-- TEST foreign key trigger: deleting data from foreign table measure
-- does not error out due to data in osm chunk
\set ON_ERROR_STOP 0
BEGIN;
-- only show sqlstate here to hide constraint name difference
\set VERBOSITY sqlstate
DELETE FROM measure where id = 1;
\set VERBOSITY terse
ROLLBACK;
\set ON_ERROR_STOP 1

--this touches osm chunk. should succeed silently without deleting any data
BEGIN;
DELETE FROM measure where id = 2;
SELECT * FROM measure order by id;
ROLLBACK;

BEGIN;
DELETE FROM devices where id = 222;
SELECT * FROM devices order by id;
ROLLBACK;

BEGIN;
DELETE FROM devicesref where id = 55;
SELECT * FROM devicesref order by id;
ROLLBACK;

--TEST retention policy is applied on OSM chunk by calling registered callback
CREATE OR REPLACE FUNCTION dummy_now_smallint() RETURNS BIGINT LANGUAGE SQL IMMUTABLE as  'SELECT 500::bigint' ;

SELECT set_integer_now_func('hyper_constr', 'dummy_now_smallint');
SELECT add_retention_policy('hyper_constr', 100::int) AS deljob_id \gset

--add hooks for osm callbacks that are triggered when drop_chunks is invoked---
SELECT ts_setup_osm_hook();
BEGIN;
SELECT drop_chunks('hyper_constr', 10::int);
SELECT id, table_name FROM _timescaledb_catalog.chunk
where hypertable_id = (Select id from _timescaledb_catalog.hypertable where table_name = 'hyper_constr')
ORDER BY id;
-- show_chunks will not show the OSM chunk which is visible via the above query
SELECT show_chunks('hyper_constr');
ROLLBACK;
CALL run_job(:deljob_id);
CALL run_job(:deljob_id);
SELECT chunk_name, range_start, range_end
FROM chunk_view
WHERE hypertable_name = 'hyper_constr'
ORDER BY chunk_name;
SELECT ts_undo_osm_hook();

----- TESTS for copy into frozen chunk ------------
\c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
CREATE TABLE test1.copy_test (
    "time" timestamptz NOT NULL,
    "value" double precision NOT NULL
);

SELECT create_hypertable('test1.copy_test', 'time', chunk_time_interval => interval '1 day');

COPY test1.copy_test FROM STDIN DELIMITER ',';
2020-01-01 01:10:00+01,1
2021-01-01 01:10:00+01,1
\.

-- Freeze one of the chunks
SELECT chunk_schema || '.' ||  chunk_name as "COPY_CHNAME", chunk_name as "COPY_CHUNK_NAME"
FROM timescaledb_information.chunks
WHERE hypertable_name = 'copy_test' and hypertable_schema = 'test1'
ORDER BY chunk_name LIMIT 1
\gset

SELECT _timescaledb_functions.freeze_chunk( :'COPY_CHNAME');

-- Check state
SELECT table_name, status
FROM _timescaledb_catalog.chunk WHERE table_name = :'COPY_CHUNK_NAME';

\set ON_ERROR_STOP 0
-- Copy should fail because one of che chunks is frozen
COPY test1.copy_test FROM STDIN DELIMITER ',';
2020-01-01 01:10:00+01,1
2021-01-01 01:10:00+01,1
\.
\set ON_ERROR_STOP 1

-- Count existing rows
SELECT COUNT(*) FROM test1.copy_test;

-- Check state
SELECT table_name, status
FROM _timescaledb_catalog.chunk WHERE table_name = :'COPY_CHUNK_NAME';

\set ON_ERROR_STOP 0
-- Copy should fail because one of che chunks is frozen
COPY test1.copy_test FROM STDIN DELIMITER ',';
2020-01-01 01:10:00+01,1
2021-01-01 01:10:00+01,1
\.
\set ON_ERROR_STOP 1

-- Count existing rows
SELECT COUNT(*) FROM test1.copy_test;

-- Check unfreeze restored chunk
SELECT _timescaledb_functions.unfreeze_chunk( :'COPY_CHNAME');

-- Check state
SELECT table_name, status
FROM _timescaledb_catalog.chunk WHERE table_name = :'COPY_CHUNK_NAME';

-- Copy should work now
COPY test1.copy_test FROM STDIN DELIMITER ',';
2020-01-01 01:10:00+01,1
2021-01-01 01:10:00+01,1
\.

--Utility functions -check index creation on hypertable with OSM chunk
-- Indexes are not created on OSM chunks, they are skipped as these are foreign tables
\c :TEST_DBNAME :ROLE_4
CREATE INDEX hyper_constr_mid_idx ON hyper_constr( mid, time);
SELECT indexname, tablename FROM pg_indexes WHERE indexname = 'hyper_constr_mid_idx';
DROP INDEX hyper_constr_mid_idx;

CREATE INDEX hyper_constr_mid_idx ON hyper_constr(mid, time) WITH (timescaledb.transaction_per_chunk);
SELECT indexname, tablename FROM pg_indexes WHERE indexname = 'hyper_constr_mid_idx';
DROP INDEX hyper_constr_mid_idx;

\i include/chunk_utils_internal_orderedappend.sql

--TEST hypertable with foreign key into it
\c :TEST_DBNAME :ROLE_4
CREATE TABLE hyper_fk(ts timestamptz primary key, device text, value float);
SELECT table_name FROM create_hypertable('hyper_fk', 'ts');

INSERT INTO hyper_fk(ts, device, value) VALUES ('2020-01-01 00:00:00+00', 'd1', 1.0);
\c postgres_fdw_db :ROLE_4
CREATE TABLE fdw_hyper_fk(ts timestamptz NOT NULL, device text, value float);
INSERT INTO fdw_hyper_fk VALUES( '2021-05-05 00:00:00+00', 'd2', 2.0);

\c :TEST_DBNAME :ROLE_4
-- this is a stand-in for the OSM table
CREATE FOREIGN TABLE child_hyper_fk
(ts timestamptz NOT NULL, device text, value float)
 SERVER s3_server OPTIONS ( schema_name 'public', table_name 'fdw_hyper_fk');
SELECT _timescaledb_functions.attach_osm_table_chunk('hyper_fk', 'child_hyper_fk');

--create table with fk into hypertable
CREATE TABLE event(ts timestamptz REFERENCES hyper_fk(ts) , info text);
-- NOTE: current behavior is to allow inserts/deletes from PG tables when data
-- references OSM table.
--insert referencing OSM chunk
INSERT INTO event VALUES( '2021-05-05 00:00:00+00' , 'osm_chunk_ts');
--insert referencing non-existent value
\set ON_ERROR_STOP 0
INSERT INTO event VALUES( '2020-01-02 00:00:00+00' , 'does_not_exist_ts');
\set ON_ERROR_STOP 1
INSERT INTO event VALUES( '2020-01-01 00:00:00+00' , 'chunk_ts');
SELECT * FROM event ORDER BY ts;

DELETE FROM event WHERE  info = 'osm_chunk_ts';
DELETE FROM event WHERE  info = 'chunk_ts';
SELECT * FROM event ORDER BY ts;

-- clean up databases created
\c :TEST_DBNAME :ROLE_SUPERUSER
DROP DATABASE postgres_fdw_db WITH (FORCE);