ClickHouse/tests/queries/0_stateless/00834_kill_mutation.sh

#!/usr/bin/env bash

CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
. "$CURDIR"/../shell_config.sh

. "$CURDIR"/mergetree_mutations.lib

${CLICKHOUSE_CLIENT} --query="DROP TABLE IF EXISTS test.kill_mutation"

${CLICKHOUSE_CLIENT} --query="CREATE TABLE test.kill_mutation(d Date, x UInt32, s String) ENGINE MergeTree ORDER BY x PARTITION BY d"

${CLICKHOUSE_CLIENT} --query="INSERT INTO test.kill_mutation VALUES ('2000-01-01', 1, 'a')"
${CLICKHOUSE_CLIENT} --query="INSERT INTO test.kill_mutation VALUES ('2001-01-01', 2, 'b')"

${CLICKHOUSE_CLIENT} --query="SELECT '*** Create and kill a single invalid mutation ***'"

${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.kill_mutation DELETE WHERE toUInt32(s) = 1 SETTINGS mutations_sync = 1" 2>/dev/null

${CLICKHOUSE_CLIENT} --query="SELECT count() FROM system.mutations WHERE database = 'test' AND table = 'kill_mutation' and is_done = 0"

${CLICKHOUSE_CLIENT} --query="KILL MUTATION WHERE database = 'test' AND table = 'kill_mutation'"

${CLICKHOUSE_CLIENT} --query="SELECT mutation_id FROM system.mutations WHERE database = 'test' AND table = 'kill_mutation'"

${CLICKHOUSE_CLIENT} --query="SELECT '*** Create and kill invalid mutation that blocks another mutation ***'"

${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.kill_mutation DELETE WHERE toUInt32(s) = 1"
${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.kill_mutation DELETE WHERE x = 1 SETTINGS mutations_sync = 1" 2>&1 | grep -o "happened during execution of mutations 'mutation_4.txt, mutation_5.txt'" | head -n 1

# but exception doesn't stop mutations, and we will still see them in system.mutations
${CLICKHOUSE_CLIENT} --query="SELECT count() FROM system.mutations WHERE database = 'test' AND table = 'kill_mutation' AND mutation_id = 'mutation_4.txt'" # 1

# waiting	test	kill_mutation	mutation_4.txt	DELETE WHERE toUInt32(s) = 1
${CLICKHOUSE_CLIENT} --query="KILL MUTATION WHERE database = 'test' AND table = 'kill_mutation' AND mutation_id = 'mutation_4.txt'"

# just to wait previous mutation to finish (and don't poll system.mutations), doesn't affect data
${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.kill_mutation DELETE WHERE x = 1 SETTINGS mutations_sync = 1"

${CLICKHOUSE_CLIENT} --query="SELECT * FROM test.kill_mutation" # 2001-01-01	2	b

# must always be empty
${CLICKHOUSE_CLIENT} --query="SELECT * FROM system.mutations WHERE table = 'kill_mutation' AND database = 'test' AND is_done = 0"

${CLICKHOUSE_CLIENT} --query="DROP TABLE test.kill_mutation"