ClickHouse/tests/queries/0_stateless/00719_parallel_ddl_table.sh

#!/usr/bin/env bash
set -e

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

${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS parallel_ddl"

function query()
{
    for _ in {1..100}; do
        ${CLICKHOUSE_CLIENT} --query "CREATE TABLE IF NOT EXISTS parallel_ddl(a Int) ENGINE = Memory"
        ${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS parallel_ddl"
    done
}

for _ in {1..2}; do
    query &
done

wait

${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS parallel_ddl"