Use explicit timezone in tests

Don't depend on pg_regress timezone in our tests as this is gonna
change with the next minor release of postgres.

postgres/postgres@b8ea0f67

tsl/test/expected/bgw_db_scheduler_fixed.out

@@ -5,6 +5,7 @@
 -- Setup
 --
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 -- this mock_start_time doesnt seem to be used anywhere
 CREATE OR REPLACE FUNCTION ts_bgw_db_scheduler_test_run_and_wait_for_scheduler_finish(timeout INT = -1, mock_start_time INT = 0) RETURNS VOID
 AS :MODULE_PATHNAME LANGUAGE C VOLATILE;
@@ -93,6 +94,7 @@ $BODY$;
 DELETE FROM _timescaledb_config.bgw_job WHERE TRUE;
 TRUNCATE _timescaledb_internal.bgw_job_stat;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 CREATE TABLE public.bgw_log(
     msg_no INT,
     mock_time BIGINT,
@@ -297,6 +299,7 @@ select * from _timescaledb_config.bgw_job;
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 --Tests that the scheduler start a job right away if it's the first time and there is no job_stat entry for it
 SELECT ts_bgw_db_scheduler_test_run_and_wait_for_scheduler_finish(25);
  ts_bgw_db_scheduler_test_run_and_wait_for_scheduler_finish 
@@ -421,6 +424,7 @@ SELECT insert_job('test_job_2', 'bgw_test_job_2_error', INTERVAL '800ms', INTERV
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 --Run the first time and error
 SELECT ts_bgw_db_scheduler_test_run_and_wait_for_scheduler_finish(25);
  ts_bgw_db_scheduler_test_run_and_wait_for_scheduler_finish 
@@ -1244,6 +1248,7 @@ SELECT _timescaledb_functions.stop_background_workers();
  t
 (1 row)
 
+SET timezone TO PST8PDT;
 CREATE OR REPLACE FUNCTION ts_test_job_refresh() RETURNS TABLE(
 id INTEGER,
 application_name NAME,

tsl/test/expected/cagg_ddl-14.out

@@ -22,6 +22,7 @@ SELECT table_name FROM create_hypertable('conditions', 'timec');
 
 -- schema tests
 \c :TEST_DBNAME :ROLE_CLUSTER_SUPERUSER
+SET timezone TO PST8PDT;
 -- drop if the tablespace1 and/or tablespace2 exists
 SET client_min_messages TO error;
 DROP TABLESPACE IF EXISTS tablespace1;

tsl/test/expected/cagg_ddl-15.out

@@ -22,6 +22,7 @@ SELECT table_name FROM create_hypertable('conditions', 'timec');
 
 -- schema tests
 \c :TEST_DBNAME :ROLE_CLUSTER_SUPERUSER
+SET timezone TO PST8PDT;
 -- drop if the tablespace1 and/or tablespace2 exists
 SET client_min_messages TO error;
 DROP TABLESPACE IF EXISTS tablespace1;

tsl/test/expected/cagg_ddl-16.out

@@ -22,6 +22,7 @@ SELECT table_name FROM create_hypertable('conditions', 'timec');
 
 -- schema tests
 \c :TEST_DBNAME :ROLE_CLUSTER_SUPERUSER
+SET timezone TO PST8PDT;
 -- drop if the tablespace1 and/or tablespace2 exists
 SET client_min_messages TO error;
 DROP TABLESPACE IF EXISTS tablespace1;

tsl/test/expected/cagg_ddl-17.out

@@ -22,6 +22,7 @@ SELECT table_name FROM create_hypertable('conditions', 'timec');
 
 -- schema tests
 \c :TEST_DBNAME :ROLE_CLUSTER_SUPERUSER
+SET timezone TO PST8PDT;
 -- drop if the tablespace1 and/or tablespace2 exists
 SET client_min_messages TO error;
 DROP TABLESPACE IF EXISTS tablespace1;

tsl/test/expected/cagg_drop_chunks.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 --
 -- Check that drop chunks with a unique constraint works as expected.
 --

tsl/test/expected/cagg_dump.out

@@ -1,6 +1,7 @@
 -- 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.
+SET timezone TO PST8PDT;
 CREATE TYPE custom_type AS (high int, low int);
 CREATE TABLE conditions_before (
       timec       TIMESTAMPTZ       NOT NULL,
@@ -158,6 +159,7 @@ SELECT _timescaledb_functions.stop_background_workers();
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 --make sure the appropriate DROP are still blocked.
 \set ON_ERROR_STOP 0
 DROP table :"MAT_SCHEMA_NAME".:"MAT_TABLE_NAME";

tsl/test/expected/cagg_errors.out

@@ -3,6 +3,7 @@
 -- LICENSE-TIMESCALE for a copy of the license.
 \set ON_ERROR_STOP 0
 \set VERBOSITY default
+SET timezone TO PST8PDT;
 --negative tests for query validation
 create table mat_t1( a integer, b integer,c TEXT);
 CREATE TABLE conditions (

tsl/test/expected/cagg_joins.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 \set VERBOSITY default
+SET timezone TO PST8PDT;
 CREATE TABLE conditions(
   day TIMESTAMPTZ NOT NULL,
   city text NOT NULL,
@@ -1227,6 +1228,7 @@ ALTER USER MAPPING FOR :ROLE_DEFAULT_PERM_USER
    OPTIONS (ADD password_required 'false');
 GRANT USAGE ON FOREIGN SERVER loopback TO :ROLE_DEFAULT_PERM_USER;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER;
+SET timezone TO PST8PDT;
 CREATE FOREIGN TABLE devices_fdw (
    device_id int not null,
    name text,

tsl/test/expected/cagg_policy.out

@@ -36,6 +36,7 @@ SELECT a, count(b)
 FROM int_tab
 GROUP BY time_bucket(1, a), a WITH NO DATA;
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 DELETE FROM _timescaledb_config.bgw_job WHERE TRUE;
 SET ROLE :ROLE_DEFAULT_PERM_USER;
 SELECT count(*) FROM _timescaledb_config.bgw_job;
@@ -260,6 +261,7 @@ SELECT hypertable_id as mat_id FROM _timescaledb_config.bgw_job where id = :job_
 \set VERBOSITY terse
 \set ON_ERROR_STOP 1
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 UPDATE _timescaledb_config.bgw_job
 SET config = jsonb_build_object('mat_hypertable_id', :mat_id)
 WHERE id = :job_id;
@@ -822,6 +824,7 @@ WHERE id = :job_id;
 (1 row)
 
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 UPDATE _timescaledb_config.bgw_job
 SET config = jsonb_build_object('mat_hypertable_id', :mat_id)
 WHERE id = :job_id;

tsl/test/expected/cagg_query.out

@@ -3,6 +3,7 @@
 -- LICENSE-TIMESCALE for a copy of the license.
 -- Connect as superuser to use SET ROLE later
 \c :TEST_DBNAME :ROLE_CLUSTER_SUPERUSER
+SET timezone TO PST8PDT;
 -- Run tests with default role
 SET ROLE :ROLE_DEFAULT_PERM_USER;
 \set TEST_BASE_NAME cagg_query

tsl/test/expected/cagg_query_using_merge.out

@@ -3,6 +3,7 @@
 -- LICENSE-TIMESCALE for a copy of the license.
 -- Connect as superuser to use SET ROLE later
 \c :TEST_DBNAME :ROLE_CLUSTER_SUPERUSER
+SET timezone TO PST8PDT;
 -- Run tests with default role
 SET ROLE :ROLE_DEFAULT_PERM_USER;
 -- Enable MERGE statements for continuous aggregate refresh

tsl/test/expected/cagg_refresh.out

@@ -1,6 +1,7 @@
 -- 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.
+SET timezone TO PST8PDT;
 \ir include/cagg_refresh_common.sql
 -- This file and its contents are licensed under the Timescale License.
 -- Please see the included NOTICE for copyright information and

tsl/test/expected/cagg_refresh_using_merge.out

@@ -3,6 +3,7 @@
 -- LICENSE-TIMESCALE for a copy of the license.
 -- Enable MERGE statements for continuous aggregate refresh
 SET timescaledb.enable_merge_on_cagg_refresh TO ON;
+SET timezone TO PST8PDT;
 \ir include/cagg_refresh_common.sql
 -- This file and its contents are licensed under the Timescale License.
 -- Please see the included NOTICE for copyright information and

tsl/test/expected/cagg_repair-14.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 CREATE PROCEDURE _timescaledb_internal.cagg_try_repair (
     cagg_view REGCLASS,
     force_rebuild BOOLEAN

tsl/test/expected/cagg_repair-15.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 CREATE PROCEDURE _timescaledb_internal.cagg_try_repair (
     cagg_view REGCLASS,
     force_rebuild BOOLEAN

tsl/test/expected/cagg_repair-16.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 CREATE PROCEDURE _timescaledb_internal.cagg_try_repair (
     cagg_view REGCLASS,
     force_rebuild BOOLEAN

tsl/test/expected/cagg_repair-17.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 CREATE PROCEDURE _timescaledb_internal.cagg_try_repair (
     cagg_view REGCLASS,
     force_rebuild BOOLEAN

tsl/test/expected/cagg_union_view-14.out

@@ -10,6 +10,7 @@ SELECT _timescaledb_functions.stop_background_workers();
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 CREATE TABLE metrics(f1 int, f2 int, time timestamptz NOT NULL, device_id int, value float);
 SELECT create_hypertable('metrics','time');

tsl/test/expected/cagg_union_view-15.out

@@ -10,6 +10,7 @@ SELECT _timescaledb_functions.stop_background_workers();
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 CREATE TABLE metrics(f1 int, f2 int, time timestamptz NOT NULL, device_id int, value float);
 SELECT create_hypertable('metrics','time');

tsl/test/expected/cagg_union_view-16.out

@@ -10,6 +10,7 @@ SELECT _timescaledb_functions.stop_background_workers();
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 CREATE TABLE metrics(f1 int, f2 int, time timestamptz NOT NULL, device_id int, value float);
 SELECT create_hypertable('metrics','time');

tsl/test/expected/cagg_union_view-17.out

@@ -10,6 +10,7 @@ SELECT _timescaledb_functions.stop_background_workers();
 (1 row)
 
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 \set PREFIX 'EXPLAIN (analyze, costs off, timing off, summary off)'
 CREATE TABLE metrics(f1 int, f2 int, time timestamptz NOT NULL, device_id int, value float);
 SELECT create_hypertable('metrics','time');

tsl/test/expected/cagg_usage-14.out

@@ -5,6 +5,7 @@
 \set ON_ERROR_STOP 0
 SET client_min_messages TO NOTICE;
 SET work_mem TO '64MB';
+SET timezone TO PST8PDT;
 -- START OF USAGE TEST --
 --First create your hypertable
 CREATE TABLE device_readings (

tsl/test/expected/cagg_usage-15.out

@@ -5,6 +5,7 @@
 \set ON_ERROR_STOP 0
 SET client_min_messages TO NOTICE;
 SET work_mem TO '64MB';
+SET timezone TO PST8PDT;
 -- START OF USAGE TEST --
 --First create your hypertable
 CREATE TABLE device_readings (

tsl/test/expected/cagg_usage-16.out

@@ -5,6 +5,7 @@
 \set ON_ERROR_STOP 0
 SET client_min_messages TO NOTICE;
 SET work_mem TO '64MB';
+SET timezone TO PST8PDT;
 -- START OF USAGE TEST --
 --First create your hypertable
 CREATE TABLE device_readings (

tsl/test/expected/cagg_usage-17.out

@@ -5,6 +5,7 @@
 \set ON_ERROR_STOP 0
 SET client_min_messages TO NOTICE;
 SET work_mem TO '64MB';
+SET timezone TO PST8PDT;
 -- START OF USAGE TEST --
 --First create your hypertable
 CREATE TABLE device_readings (

tsl/test/expected/cagg_utils.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 SET search_path TO public, _timescaledb_functions;
+SET timezone TO PST8PDT;
 CREATE TABLE devices (
     id INTEGER,
     name TEXT
@@ -263,6 +264,7 @@ CREATE OR REPLACE FUNCTION cagg_get_bucket_function(
     mat_hypertable_id INTEGER
 ) RETURNS regprocedure AS :MODULE_PATHNAME, 'ts_continuous_agg_get_bucket_function' LANGUAGE C STRICT VOLATILE;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 CREATE TABLE timestamp_ht (
   time timestamp NOT NULL,
   value float

tsl/test/expected/cagg_watermark.out

@@ -1,6 +1,7 @@
 -- 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.
+SET timezone TO PST8PDT;
 \set EXPLAIN_ANALYZE 'EXPLAIN (analyze,costs off,timing off,summary off)'
 CREATE TABLE continuous_agg_test(time int, data int);
 SELECT create_hypertable('continuous_agg_test', 'time', chunk_time_interval=> 10);
@@ -74,6 +75,7 @@ SELECT * from _timescaledb_catalog.continuous_aggs_hypertable_invalidation_log;
 \c :TEST_DBNAME :ROLE_SUPERUSER
 INSERT INTO _timescaledb_catalog.continuous_aggs_invalidation_threshold VALUES (1, 15);
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 INSERT INTO continuous_agg_test VALUES (10, 1), (11, 2), (21, 3), (22, 4);
 SELECT * FROM _timescaledb_catalog.continuous_aggs_invalidation_threshold;
  hypertable_id | watermark 
@@ -347,6 +349,7 @@ UPDATE _timescaledb_catalog.continuous_aggs_invalidation_threshold
 SET watermark = 2
 WHERE hypertable_id = 5;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 INSERT INTO ts_continuous_test VALUES (1, 1);
 SELECT * FROM _timescaledb_catalog.continuous_aggs_invalidation_threshold;
  hypertable_id | watermark 

tsl/test/expected/chunk_merge.out

@@ -6,6 +6,7 @@ CREATE OR REPLACE FUNCTION _timescaledb_internal.test_merge_chunks_on_dimension(
  RETURNS VOID
     AS :TSL_MODULE_PATHNAME, 'ts_test_merge_chunks_on_dimension' LANGUAGE C VOLATILE;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 CREATE TABLE test1 ("Time" timestamptz, i integer, value integer);
 SELECT table_name FROM Create_hypertable('test1', 'Time', chunk_time_interval=> INTERVAL '1 hour');
 NOTICE:  adding not-null constraint to column "Time"

tsl/test/expected/compression.out

@@ -2,6 +2,7 @@
 -- Please see the included NOTICE for copyright information and
 -- LICENSE-TIMESCALE for a copy of the license.
 SET timescaledb.enable_transparent_decompression to OFF;
+SET timezone TO PST8PDT;
 \set PREFIX 'EXPLAIN (analyze, verbose, costs off, timing off, summary off)'
 \ir include/rand_generator.sql
 -- This file and its contents are licensed under the Timescale License.
@@ -1497,6 +1498,7 @@ SET reltuples = 0, relpages = 0
   WHERE ht.table_name = 'stattest2' AND ch.hypertable_id = ht.id
         AND ch.compressed_chunk_id > 0 );
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 -- reltuples is initially -1 on PG14 before VACUUM/ANALYZE has been run
 SELECT relname, CASE WHEN reltuples > 0 THEN reltuples ELSE 0 END AS reltuples, relpages, relallvisible FROM pg_class
  WHERE relname in ( SELECT ch.table_name FROM

tsl/test/expected/compression_bgw.out

@@ -7,6 +7,7 @@ CREATE ROLE NOLOGIN_ROLE WITH nologin noinherit;
 GRANT CREATE ON SCHEMA public TO NOLOGIN_ROLE;
 GRANT NOLOGIN_ROLE TO :ROLE_DEFAULT_PERM_USER WITH ADMIN OPTION;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 CREATE TABLE conditions (
       time        TIMESTAMPTZ       NOT NULL,
       location    TEXT              NOT NULL,
@@ -286,6 +287,7 @@ ERROR:  permission denied to start background process as role "nologin_role"
 DROP TABLE test_table_nologin;
 RESET ROLE;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 CREATE TABLE conditions(
     time TIMESTAMPTZ NOT NULL,
     device INTEGER,

tsl/test/expected/compression_ddl.out

@@ -30,6 +30,7 @@ SET client_min_messages = NOTICE;
 CREATE TABLESPACE tablespace1 OWNER :ROLE_DEFAULT_PERM_USER LOCATION :TEST_TABLESPACE1_PATH;
 CREATE TABLESPACE tablespace2 OWNER :ROLE_DEFAULT_PERM_USER LOCATION :TEST_TABLESPACE2_PATH;
 \c :TEST_DBNAME :ROLE_DEFAULT_PERM_USER
+SET timezone TO PST8PDT;
 CREATE TABLE test1 ("Time" timestamptz, i integer, b bigint, t text);
 SELECT table_name from create_hypertable('test1', 'Time', chunk_time_interval=> INTERVAL '1 day');
 NOTICE:  adding not-null constraint to column "Time"
@@ -562,6 +563,7 @@ SELECT count(*) FROM test1_cont_view;
 (1 row)
 
 \c :TEST_DBNAME :ROLE_SUPERUSER
+SET timezone TO PST8PDT;
 SELECT chunk.schema_name|| '.' || chunk.table_name as "COMPRESSED_CHUNK_NAME"
 FROM _timescaledb_catalog.chunk chunk
 INNER JOIN _timescaledb_catalog.hypertable comp_hyper ON (chunk.hypertable_id = comp_hyper.id)

tsl/test/expected/compression_insert.out

@@ -1,6 +1,7 @@
 -- 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.
+SET timezone TO PST8PDT;
 \set PREFIX 'EXPLAIN (costs off, summary off, timing off) '
 \set ANALYZE  'EXPLAIN (analyze, costs off, summary off, timing off) '
 CREATE TABLE test1 (timec timestamptz , i integer ,

tsl/test/expected/continuous_aggs-14.out

@@ -755,6 +755,7 @@ INNER JOIN _timescaledb_catalog.hypertable h ON(h.id = ca.mat_hypertable_id)
 WHERE user_view_name = 'mat_drop_test'
 \gset
 SET client_min_messages TO NOTICE;
+SET timezone TO PST8PDT;
 CALL refresh_continuous_aggregate('mat_drop_test', NULL, NULL);
 --force invalidation
 insert into conditions

tsl/test/expected/continuous_aggs-15.out

@@ -755,6 +755,7 @@ INNER JOIN _timescaledb_catalog.hypertable h ON(h.id = ca.mat_hypertable_id)
 WHERE user_view_name = 'mat_drop_test'
 \gset
 SET client_min_messages TO NOTICE;
+SET timezone TO PST8PDT;
 CALL refresh_continuous_aggregate('mat_drop_test', NULL, NULL);
 --force invalidation
 insert into conditions

tsl/test/expected/continuous_aggs-16.out

@@ -755,6 +755,7 @@ INNER JOIN _timescaledb_catalog.hypertable h ON(h.id = ca.mat_hypertable_id)
 WHERE user_view_name = 'mat_drop_test'
 \gset
 SET client_min_messages TO NOTICE;
+SET timezone TO PST8PDT;
 CALL refresh_continuous_aggregate('mat_drop_test', NULL, NULL);
 --force invalidation
 insert into conditions