#!/usr/bin/env bash set -e CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd) . $CURDIR/../shell_config.sh ${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS parallel_ddl" function query() { for i 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 i in {1..2}; do query & done wait ${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS parallel_ddl"