ClickHouse/tests/queries/0_stateless/01516_drop_table_stress.sh

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#!/usr/bin/env bash
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=../shell_config.sh
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. "$CURDIR"/../shell_config.sh
function drop_database()
{
# redirect stderr since it is racy with DROP TABLE
# and tries to remove db_01516.data too.
${CLICKHOUSE_CLIENT} -q "DROP DATABASE IF EXISTS db_01516" 2>/dev/null
}
function drop_table()
{
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${CLICKHOUSE_CLIENT} -q "DROP TABLE IF EXISTS db_01516.data3;" 2>&1 | grep -F "Code: " | grep -Fv "is currently dropped or renamed"
${CLICKHOUSE_CLIENT} -q "DROP TABLE IF EXISTS db_01516.data1;" 2>&1 | grep -F "Code: " | grep -Fv "is currently dropped or renamed"
${CLICKHOUSE_CLIENT} -q "DROP TABLE IF EXISTS db_01516.data2;" 2>&1 | grep -F "Code: " | grep -Fv "is currently dropped or renamed"
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}
function create()
{
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${CLICKHOUSE_CLIENT} -q "CREATE DATABASE IF NOT EXISTS db_01516;"
${CLICKHOUSE_CLIENT} -q "CREATE TABLE IF NOT EXISTS db_01516.data1 Engine=MergeTree() ORDER BY number AS SELECT * FROM numbers(1);" 2>&1 | grep -F "Code: " | grep -Fv "is currently dropped or renamed"
${CLICKHOUSE_CLIENT} -q "CREATE TABLE IF NOT EXISTS db_01516.data2 Engine=MergeTree() ORDER BY number AS SELECT * FROM numbers(1);" 2>&1 | grep -F "Code: " | grep -Fv "is currently dropped or renamed"
${CLICKHOUSE_CLIENT} -q "CREATE TABLE IF NOT EXISTS db_01516.data3 Engine=MergeTree() ORDER BY number AS SELECT * FROM numbers(1);" 2>&1 | grep -F "Code: " | grep -Fv "is currently dropped or renamed"
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}
for _ in {1..100}; do
create
drop_table &
drop_database &
wait
done