mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 03:25:15 +00:00
28 lines
875 B
Bash
Executable File
28 lines
875 B
Bash
Executable File
#!/usr/bin/env bash
|
|
# Tags: long, no-parallel
|
|
|
|
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
|
# shellcheck source=../shell_config.sh
|
|
. "$CURDIR"/../shell_config.sh
|
|
|
|
$CLICKHOUSE_CLIENT --query "DROP TABLE IF EXISTS alter_mt"
|
|
|
|
$CLICKHOUSE_CLIENT --query "CREATE TABLE alter_mt (key UInt64, value String) ENGINE=MergeTree() ORDER BY key"
|
|
|
|
$CLICKHOUSE_CLIENT --query "INSERT INTO alter_mt SELECT number, toString(number) FROM numbers(5)"
|
|
|
|
$CLICKHOUSE_CLIENT --query "SELECT count(distinct concat(value, '_')) FROM alter_mt WHERE not sleepEachRow(2)" &
|
|
|
|
# to be sure that select took all required locks
|
|
sleep 2
|
|
|
|
$CLICKHOUSE_CLIENT --query "ALTER TABLE alter_mt MODIFY COLUMN value UInt64"
|
|
|
|
$CLICKHOUSE_CLIENT --query "SELECT sum(value) FROM alter_mt"
|
|
|
|
wait
|
|
|
|
$CLICKHOUSE_CLIENT --query "SHOW CREATE TABLE alter_mt"
|
|
|
|
$CLICKHOUSE_CLIENT --query "DROP TABLE IF EXISTS alter_mt"
|