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Citus Clock tests with Single Shard Tables (#6938) 

This PR tests Citus clock with single shard tables.
pull/6990/head
Halil Ozan Akgül 2023-06-09 15:06:46 +03:00 committed by GitHub
parent 2ba3bffe1e
commit 3acadd7321
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91
src/test/regress/expected/single_shard_table_udfs.out
View File

@ -1211,5 +1211,96 @@ SELECT shardlength > 0 FROM pg_dist_shard_placement WHERE shardid = :update_shar
t
(1 row)
-- test citus clock
SET citus.enable_cluster_clock TO ON;
CREATE TABLE clock_single(a INT);
SELECT create_distributed_table('clock_single', NULL, colocate_with:='none');
create_distributed_table
---------------------------------------------------------------------
(1 row)
SELECT citus_get_node_clock() AS nc1 \gset
SELECT citus_get_node_clock() AS nc2 \gset
SELECT citus_get_node_clock() AS nc3 \gset
SELECT citus_is_clock_after(:'nc2', :'nc1');
citus_is_clock_after
---------------------------------------------------------------------
t
(1 row)
SELECT citus_is_clock_after(:'nc3', :'nc2');
citus_is_clock_after
---------------------------------------------------------------------
t
(1 row)
BEGIN;
SELECT citus_get_node_clock() AS nc4 \gset
COPY clock_single FROM STDIN;
SELECT citus_get_node_clock() AS nc5 \gset
END;
SELECT citus_is_clock_after(:'nc4', :'nc3');
citus_is_clock_after
---------------------------------------------------------------------
t
(1 row)
SELECT citus_is_clock_after(:'nc5', :'nc4');
citus_is_clock_after
---------------------------------------------------------------------
t
(1 row)
BEGIN;
SELECT citus_get_transaction_clock();
citus_get_transaction_clock
---------------------------------------------------------------------
(xxxxxxxxxxxxx,x)
(1 row)
END;
-- Transaction with single shard table access
SELECT nodeport AS clock_shard_nodeport FROM citus_shards
WHERE table_name::text = 'clock_single' AND nodeport IN (:worker_1_port, :worker_2_port) \gset
BEGIN;
COPY clock_single FROM STDIN;
SELECT get_current_transaction_id() \gset tid
SET client_min_messages TO DEBUG1;
-- Capture the transaction timestamp
SELECT citus_get_transaction_clock() as txnclock \gset
DEBUG: node xxxx transaction clock xxxxxx
DEBUG: node xxxx transaction clock xxxxxx
DEBUG: final global transaction clock xxxxxx
COMMIT;
-- Check to see if the clock is persisted in the sequence.
SELECT result as logseq from run_command_on_workers($$SELECT last_value FROM pg_dist_clock_logical_seq$$)
WHERE nodeport = :clock_shard_nodeport \gset
SELECT cluster_clock_logical(:'txnclock') as txnlog \gset
SELECT :logseq = :txnlog;
?column?
---------------------------------------------------------------------
t
(1 row)
BEGIN;
COPY clock_single FROM STDIN;
SELECT get_current_transaction_id() \gset tid
SET client_min_messages TO DEBUG1;
-- Capture the transaction timestamp
SELECT citus_get_transaction_clock() as txnclock \gset
DEBUG: node xxxx transaction clock xxxxxx
DEBUG: node xxxx transaction clock xxxxxx
DEBUG: final global transaction clock xxxxxx
ROLLBACK;
SELECT result as logseq from run_command_on_workers($$SELECT last_value FROM pg_dist_clock_logical_seq$$)
WHERE nodeport = :clock_shard_nodeport \gset
SELECT cluster_clock_logical(:'txnclock') as txnlog \gset
SELECT :logseq = :txnlog;
?column?
---------------------------------------------------------------------
t
(1 row)
SET client_min_messages TO WARNING;
DROP SCHEMA null_dist_key_udfs CASCADE;

66
src/test/regress/sql/single_shard_table_udfs.sql
View File

@ -588,5 +588,71 @@ SELECT 1 FROM citus_update_shard_statistics(:update_shard_stat_shard);
SELECT shardlength > 0 FROM pg_dist_shard_placement WHERE shardid = :update_shard_stat_shard LIMIT 1;
-- test citus clock
SET citus.enable_cluster_clock TO ON;
CREATE TABLE clock_single(a INT);
SELECT create_distributed_table('clock_single', NULL, colocate_with:='none');
SELECT citus_get_node_clock() AS nc1 \gset
SELECT citus_get_node_clock() AS nc2 \gset
SELECT citus_get_node_clock() AS nc3 \gset
SELECT citus_is_clock_after(:'nc2', :'nc1');
SELECT citus_is_clock_after(:'nc3', :'nc2');
BEGIN;
SELECT citus_get_node_clock() AS nc4 \gset
COPY clock_single FROM STDIN;
1
2
\.
SELECT citus_get_node_clock() AS nc5 \gset
END;
SELECT citus_is_clock_after(:'nc4', :'nc3');
SELECT citus_is_clock_after(:'nc5', :'nc4');
BEGIN;
SELECT citus_get_transaction_clock();
END;
-- Transaction with single shard table access
SELECT nodeport AS clock_shard_nodeport FROM citus_shards
WHERE table_name::text = 'clock_single' AND nodeport IN (:worker_1_port, :worker_2_port) \gset
BEGIN;
COPY clock_single FROM STDIN;
1
2
\.
SELECT get_current_transaction_id() \gset tid
SET client_min_messages TO DEBUG1;
-- Capture the transaction timestamp
SELECT citus_get_transaction_clock() as txnclock \gset
COMMIT;
-- Check to see if the clock is persisted in the sequence.
SELECT result as logseq from run_command_on_workers($$SELECT last_value FROM pg_dist_clock_logical_seq$$)
WHERE nodeport = :clock_shard_nodeport \gset
SELECT cluster_clock_logical(:'txnclock') as txnlog \gset
SELECT :logseq = :txnlog;
BEGIN;
COPY clock_single FROM STDIN;
1
2
\.
SELECT get_current_transaction_id() \gset tid
SET client_min_messages TO DEBUG1;
-- Capture the transaction timestamp
SELECT citus_get_transaction_clock() as txnclock \gset
ROLLBACK;
SELECT result as logseq from run_command_on_workers($$SELECT last_value FROM pg_dist_clock_logical_seq$$)
WHERE nodeport = :clock_shard_nodeport \gset
SELECT cluster_clock_logical(:'txnclock') as txnlog \gset
SELECT :logseq = :txnlog;
SET client_min_messages TO WARNING;
DROP SCHEMA null_dist_key_udfs CASCADE;