mirror of
https://github.com/ClickHouse/ClickHouse.git
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28 lines
752 B
Bash
28 lines
752 B
Bash
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#!/usr/bin/env bash
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CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=../shell_config.sh
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. "$CURDIR"/../shell_config.sh
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THREADS=8
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RAND=$(($RANDOM))
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LIMIT=10000
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function run_selects()
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{
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thread_num=$1
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readarray -t tables_arr < <(${CLICKHOUSE_CLIENT} -q "SELECT database || '.' || name FROM system.tables
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WHERE database in ('system', 'information_schema', 'INFORMATION_SCHEMA') and name!='zookeeper'
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AND sipHash64(name || toString($RAND)) % $THREADS = $thread_num")
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for t in "${tables_arr[@]}"
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do
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${CLICKHOUSE_CLIENT} -q "SELECT * FROM $t LIMIT $LIMIT FORMAT Null" # Suppress style check: database=$CLICKHOUSE_DATABASEs
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done
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}
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for ((i=0; i<THREADS; i++)) do
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run_selects "$i" &
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done
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wait
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