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50a312534c
Before this patch there was:
- parallel_distributed_insert_select=1, that executes:
INSERT INTO dist_out SELECT ... FROM underlying_dist_in
After this patch there will be:
- parallel_distributed_insert_select=2, that executes:
INSERT INTO underlying_dist_out SELECT ... FROM underlying_dist_in
And cover the behaviour w/o integration test, by using the following
techincs:
- SYSTEM STOP DISTRIBUTED SENDS
- prefer_localhost_replica=0
160 lines
6.2 KiB
SQL
160 lines
6.2 KiB
SQL
DROP TABLE IF EXISTS local_01099_a;
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DROP TABLE IF EXISTS local_01099_b;
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DROP TABLE IF EXISTS distributed_01099_a;
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DROP TABLE IF EXISTS distributed_01099_b;
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SET parallel_distributed_insert_select=1;
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SELECT 'parallel_distributed_insert_select=1';
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--
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-- test_shard_localhost
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--
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SELECT 'test_shard_localhost';
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CREATE TABLE local_01099_a (number UInt64) ENGINE = Log;
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CREATE TABLE local_01099_b (number UInt64) ENGINE = Log;
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CREATE TABLE distributed_01099_a AS local_01099_a ENGINE = Distributed('test_shard_localhost', currentDatabase(), local_01099_a, rand());
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CREATE TABLE distributed_01099_b AS local_01099_b ENGINE = Distributed('test_shard_localhost', currentDatabase(), local_01099_b, rand());
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INSERT INTO local_01099_a SELECT number from system.numbers limit 3;
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INSERT INTO distributed_01099_b SELECT * from distributed_01099_a;
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SELECT * FROM distributed_01099_b;
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DROP TABLE local_01099_a;
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DROP TABLE local_01099_b;
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DROP TABLE distributed_01099_a;
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DROP TABLE distributed_01099_b;
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--
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-- test_cluster_two_shards_localhost
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--
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SELECT 'test_cluster_two_shards_localhost';
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CREATE TABLE local_01099_a (number UInt64) ENGINE = Log;
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CREATE TABLE local_01099_b (number UInt64) ENGINE = Log;
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CREATE TABLE distributed_01099_a AS local_01099_a ENGINE = Distributed('test_cluster_two_shards_localhost', currentDatabase(), local_01099_a, rand());
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CREATE TABLE distributed_01099_b AS local_01099_b ENGINE = Distributed('test_cluster_two_shards_localhost', currentDatabase(), local_01099_b, rand());
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INSERT INTO local_01099_a SELECT number from system.numbers limit 3;
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INSERT INTO distributed_01099_b SELECT * from distributed_01099_a;
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SELECT number, count(number) FROM local_01099_b group by number order by number;
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DROP TABLE local_01099_a;
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DROP TABLE local_01099_b;
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DROP TABLE distributed_01099_a;
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DROP TABLE distributed_01099_b;
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--
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-- test_cluster_two_shards
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--
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SELECT 'test_cluster_two_shards';
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CREATE TABLE local_01099_a (number UInt64) ENGINE = Log;
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CREATE TABLE local_01099_b (number UInt64) ENGINE = Log;
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CREATE TABLE distributed_01099_a AS local_01099_a ENGINE = Distributed('test_cluster_two_shards', currentDatabase(), local_01099_a, rand());
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CREATE TABLE distributed_01099_b AS local_01099_b ENGINE = Distributed('test_cluster_two_shards', currentDatabase(), local_01099_b, rand());
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SYSTEM STOP DISTRIBUTED SENDS distributed_01099_b;
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SET prefer_localhost_replica=0; -- to require distributed send for local replica too
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INSERT INTO local_01099_a SELECT number from system.numbers limit 3;
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INSERT INTO distributed_01099_b SELECT * from distributed_01099_a;
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SET prefer_localhost_replica=1;
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-- distributed sends disabled, 0 rows (since parallel_distributed_insert_select=1)
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SELECT 'distributed';
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SELECT number, count(number) FROM distributed_01099_b group by number order by number;
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SYSTEM FLUSH DISTRIBUTED distributed_01099_b;
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SELECT 'local';
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SELECT number, count(number) FROM local_01099_b group by number order by number;
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SELECT 'distributed';
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SELECT number, count(number) FROM distributed_01099_b group by number order by number;
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DROP TABLE local_01099_a;
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DROP TABLE local_01099_b;
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DROP TABLE distributed_01099_a;
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DROP TABLE distributed_01099_b;
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SET parallel_distributed_insert_select=2;
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SELECT 'parallel_distributed_insert_select=2';
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--
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-- test_shard_localhost
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--
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SELECT 'test_shard_localhost';
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CREATE TABLE local_01099_a (number UInt64) ENGINE = Log;
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CREATE TABLE local_01099_b (number UInt64) ENGINE = Log;
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CREATE TABLE distributed_01099_a AS local_01099_a ENGINE = Distributed('test_shard_localhost', currentDatabase(), local_01099_a, rand());
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CREATE TABLE distributed_01099_b AS local_01099_b ENGINE = Distributed('test_shard_localhost', currentDatabase(), local_01099_b, rand());
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INSERT INTO local_01099_a SELECT number from system.numbers limit 3;
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INSERT INTO distributed_01099_b SELECT * from distributed_01099_a;
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SELECT * FROM distributed_01099_b;
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DROP TABLE local_01099_a;
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DROP TABLE local_01099_b;
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DROP TABLE distributed_01099_a;
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DROP TABLE distributed_01099_b;
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--
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-- test_cluster_two_shards_localhost
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--
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SELECT 'test_cluster_two_shards_localhost';
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-- Log engine will lead to deadlock:
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-- DB::Exception: std::system_error: Resource deadlock avoided.
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-- So use MergeTree instead.
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CREATE TABLE local_01099_a (number UInt64) ENGINE = MergeTree() ORDER BY number;
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CREATE TABLE local_01099_b (number UInt64) ENGINE = MergeTree() ORDER BY number;
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CREATE TABLE distributed_01099_a AS local_01099_a ENGINE = Distributed('test_cluster_two_shards_localhost', currentDatabase(), local_01099_a, rand());
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CREATE TABLE distributed_01099_b AS local_01099_b ENGINE = Distributed('test_cluster_two_shards_localhost', currentDatabase(), local_01099_b, rand());
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INSERT INTO local_01099_a SELECT number from system.numbers limit 3;
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INSERT INTO distributed_01099_b SELECT * from distributed_01099_a;
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SELECT number, count(number) FROM local_01099_b group by number order by number;
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DROP TABLE local_01099_a;
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DROP TABLE local_01099_b;
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DROP TABLE distributed_01099_a;
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DROP TABLE distributed_01099_b;
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--
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-- test_cluster_two_shards
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--
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SELECT 'test_cluster_two_shards';
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CREATE TABLE local_01099_a (number UInt64) ENGINE = MergeTree() ORDER BY number;
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CREATE TABLE local_01099_b (number UInt64) ENGINE = MergeTree() ORDER BY number;
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CREATE TABLE distributed_01099_a AS local_01099_a ENGINE = Distributed('test_cluster_two_shards', currentDatabase(), local_01099_a, rand());
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CREATE TABLE distributed_01099_b AS local_01099_b ENGINE = Distributed('test_cluster_two_shards', currentDatabase(), local_01099_b, rand());
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SYSTEM STOP DISTRIBUTED SENDS distributed_01099_b;
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SET prefer_localhost_replica=0; -- to require distributed send for local replica too
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INSERT INTO local_01099_a SELECT number from system.numbers limit 3;
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INSERT INTO distributed_01099_b SELECT * from distributed_01099_a;
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SET prefer_localhost_replica=1;
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-- distributed sends disabled, but they are not required, since insert is done into local table.
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-- (since parallel_distributed_insert_select=2)
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SELECT 'distributed';
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SELECT number, count(number) FROM distributed_01099_b group by number order by number;
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SELECT 'local';
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SELECT number, count(number) FROM local_01099_b group by number order by number;
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DROP TABLE local_01099_a;
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DROP TABLE local_01099_b;
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DROP TABLE distributed_01099_a;
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DROP TABLE distributed_01099_b;
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