#!/usr/bin/env bash CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd) . "$CURDIR"/../shell_config.sh $CLICKHOUSE_CLIENT --query="create database if not exists test_01054;" $CLICKHOUSE_CLIENT --query="drop table if exists test_01054.ints;" $CLICKHOUSE_CLIENT --query="create table test_01054.ints (key UInt64, i8 Int8, i16 Int16, i32 Int32, i64 Int64, u8 UInt8, u16 UInt16, u32 UInt32, u64 UInt64) Engine = Memory;" $CLICKHOUSE_CLIENT --query="insert into test_01054.ints values (1, 1, 1, 1, 1, 1, 1, 1, 1);" $CLICKHOUSE_CLIENT --query="insert into test_01054.ints values (2, 2, 2, 2, 2, 2, 2, 2, 2);" $CLICKHOUSE_CLIENT --query="insert into test_01054.ints values (3, 3, 3, 3, 3, 3, 3, 3, 3);" function thread1() { for _ in {1..100} do RAND_NUMBER_THREAD1=$($CLICKHOUSE_CLIENT --query="SELECT rand() % 100;") $CLICKHOUSE_CLIENT --query="select dictGet('one_cell_cache_ints', 'i8', toUInt64($RAND_NUMBER_THREAD1));" done } function thread2() { for _ in {1..100} do RAND_NUMBER_THREAD2=$($CLICKHOUSE_CLIENT --query="SELECT rand() % 100;") $CLICKHOUSE_CLIENT --query="select dictGet('one_cell_cache_ints', 'i8', toUInt64($RAND_NUMBER_THREAD2));" done } function thread3() { for _ in {1..100} do RAND_NUMBER_THREAD3=$($CLICKHOUSE_CLIENT --query="SELECT rand() % 100;") $CLICKHOUSE_CLIENT --query="select dictGet('one_cell_cache_ints', 'i8', toUInt64($RAND_NUMBER_THREAD3));" done } function thread4() { for _ in {1..100} do RAND_NUMBER_THREAD4=$($CLICKHOUSE_CLIENT --query="SELECT rand() % 100;") $CLICKHOUSE_CLIENT --query="select dictGet('one_cell_cache_ints', 'i8', toUInt64($RAND_NUMBER_THREAD4));" done } export -f thread1; export -f thread2; export -f thread3; export -f thread4; TIMEOUT=10 # shellcheck disable=SC2188 timeout $TIMEOUT bash -c thread1 > /dev/null 2>&1 & timeout $TIMEOUT bash -c thread2 > /dev/null 2>&1 & timeout $TIMEOUT bash -c thread3 > /dev/null 2>&1 & timeout $TIMEOUT bash -c thread4 > /dev/null 2>&1 & wait echo OK $CLICKHOUSE_CLIENT --query "DROP TABLE if exists test_01054.ints"