#!/usr/bin/env bash # Tags: long set -e CLICKHOUSE_CLIENT_SERVER_LOGS_LEVEL=none CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd) # shellcheck source=../shell_config.sh . "$CUR_DIR"/../shell_config.sh ${CLICKHOUSE_CLIENT} --query="DROP TABLE IF EXISTS t" ${CLICKHOUSE_CLIENT} --query="CREATE TABLE t (x Int8) ENGINE = MergeTree ORDER BY ()" function thread_optimize() { while true; do ${CLICKHOUSE_CLIENT} --query="OPTIMIZE TABLE t FINAL;" 2>&1 | tr -d '\n' | rg -v 'Cancelled merging parts' ||: done } TIMEOUT=15 export -f thread_optimize timeout $TIMEOUT bash -c thread_optimize 2> /dev/null & for i in {1..100}; do echo " INSERT INTO t VALUES (0); INSERT INTO t VALUES (0); TRUNCATE TABLE t; SELECT count() FROM t HAVING count() > 0; SELECT ${i}; " done | ${CLICKHOUSE_CLIENT} wait $CLICKHOUSE_CLIENT -q "DROP TABLE t"