-- This file and its contents are licensed under the Apache License 2.0.
-- Please see the included NOTICE for copyright information and
-- LICENSE-APACHE for a copy of the license.
-- Hypertables can break as a result of race conditions, but we should
-- still not crash when trying to truncate or delete the broken table.
\c :TEST_DBNAME :ROLE_SUPERUSER
CREATE VIEW missing_slices AS
SELECT DISTINCT
    dimension_slice_id,
    constraint_name,
    attname AS column_name,
    pg_get_expr(conbin, conrelid) AS constraint_expr
FROM
    _timescaledb_catalog.chunk_constraint cc
    JOIN _timescaledb_catalog.chunk ch ON cc.chunk_id = ch.id
    JOIN pg_constraint ON conname = constraint_name
    JOIN pg_namespace ns ON connamespace = ns.oid
        AND ns.nspname = ch.schema_name
    JOIN pg_attribute ON attnum = conkey[1]
        AND attrelid = conrelid
WHERE
    dimension_slice_id NOT IN (SELECT id FROM _timescaledb_catalog.dimension_slice);
-- To drop rows from dimension_slice table, we need to remove some
-- constraints.
ALTER TABLE _timescaledb_catalog.chunk_constraint
      DROP CONSTRAINT chunk_constraint_dimension_slice_id_fkey;
CREATE TABLE chunk_test_int(time integer, temp float8, tag integer, color integer);
SELECT create_hypertable('chunk_test_int', 'time', 'tag', 2, chunk_time_interval => 3);
NOTICE:  adding not-null constraint to column "time"
      create_hypertable      
-----------------------------
 (1,public,chunk_test_int,t)
(1 row)

INSERT INTO chunk_test_int VALUES
       (4, 24.3, 1, 1),
       (4, 24.3, 2, 1),
       (10, 24.3, 2, 1);
SELECT * FROM _timescaledb_catalog.dimension_slice ORDER BY id;
 id | dimension_id |     range_start      |      range_end      
----+--------------+----------------------+---------------------
  1 |            1 |                    3 |                   6
  2 |            2 | -9223372036854775808 |          1073741823
  3 |            2 |           1073741823 | 9223372036854775807
  4 |            1 |                    9 |                  12
(4 rows)

SELECT DISTINCT
       chunk_id,
       dimension_slice_id,
       constraint_name,
       pg_get_expr(conbin, conrelid) AS constraint_expr
FROM _timescaledb_catalog.chunk_constraint,
     LATERAL (
     	     SELECT *
	     FROM pg_constraint JOIN pg_namespace ns ON connamespace = ns.oid
	     WHERE conname = constraint_name
     ) AS con
ORDER BY chunk_id, dimension_slice_id;
 chunk_id | dimension_slice_id | constraint_name |                        constraint_expr                        
----------+--------------------+-----------------+---------------------------------------------------------------
        1 |                  1 | constraint_1    | (("time" >= 3) AND ("time" < 6))
        1 |                  2 | constraint_2    | (_timescaledb_internal.get_partition_hash(tag) < 1073741823)
        2 |                  1 | constraint_1    | (("time" >= 3) AND ("time" < 6))
        2 |                  3 | constraint_3    | (_timescaledb_internal.get_partition_hash(tag) >= 1073741823)
        3 |                  3 | constraint_3    | (_timescaledb_internal.get_partition_hash(tag) >= 1073741823)
        3 |                  4 | constraint_4    | (("time" >= 9) AND ("time" < 12))
(6 rows)

DELETE FROM _timescaledb_catalog.dimension_slice WHERE id = 1;
SELECT * FROM missing_slices;
 dimension_slice_id | constraint_name | column_name |         constraint_expr          
--------------------+-----------------+-------------+----------------------------------
                  1 | constraint_1    | time        | (("time" >= 3) AND ("time" < 6))
(1 row)

-- Setting level to ERROR since warnings are printed in different
-- order on PG11 and PG12.
SET client_min_messages TO error;
TRUNCATE TABLE chunk_test_int;
DROP TABLE chunk_test_int;
RESET client_min_messages;
CREATE TABLE chunk_test_int(time integer, temp float8, tag integer, color integer);
SELECT create_hypertable('chunk_test_int', 'time', 'tag', 2, chunk_time_interval => 3);
NOTICE:  adding not-null constraint to column "time"
      create_hypertable      
-----------------------------
 (2,public,chunk_test_int,t)
(1 row)

INSERT INTO chunk_test_int VALUES
       (4, 24.3, 1, 1),
       (4, 24.3, 2, 1),
       (10, 24.3, 2, 1);
SELECT DISTINCT
       chunk_id,
       dimension_slice_id,
       constraint_name,
       pg_get_expr(conbin, conrelid) AS constraint_expr
FROM _timescaledb_catalog.chunk_constraint,
     LATERAL (
     	     SELECT *
	     FROM pg_constraint JOIN pg_namespace ns ON connamespace = ns.oid
	     WHERE conname = constraint_name
     ) AS con
ORDER BY chunk_id, dimension_slice_id;
 chunk_id | dimension_slice_id | constraint_name |                        constraint_expr                        
----------+--------------------+-----------------+---------------------------------------------------------------
        4 |                  5 | constraint_5    | (("time" >= 3) AND ("time" < 6))
        4 |                  6 | constraint_6    | (_timescaledb_internal.get_partition_hash(tag) < 1073741823)
        5 |                  5 | constraint_5    | (("time" >= 3) AND ("time" < 6))
        5 |                  7 | constraint_7    | (_timescaledb_internal.get_partition_hash(tag) >= 1073741823)
        6 |                  7 | constraint_7    | (_timescaledb_internal.get_partition_hash(tag) >= 1073741823)
        6 |                  8 | constraint_8    | (("time" >= 9) AND ("time" < 12))
(6 rows)

DELETE FROM _timescaledb_catalog.dimension_slice WHERE id = 5;
SELECT * FROM missing_slices;
 dimension_slice_id | constraint_name | column_name |         constraint_expr          
--------------------+-----------------+-------------+----------------------------------
                  5 | constraint_5    | time        | (("time" >= 3) AND ("time" < 6))
(1 row)

-- Setting level to ERROR since warnings are printed in different
-- order on PG11 and PG12.
SET client_min_messages TO error;
DROP TABLE chunk_test_int;
RESET client_min_messages;