ClickHouse/tests/queries/0_stateless/02875_merge_engine_set_index.sh

#!/usr/bin/env bash
# Tags: long, no-tsan

# shellcheck disable=SC2154

CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
# shellcheck source=../shell_config.sh
. "$CURDIR"/../shell_config.sh


$CLICKHOUSE_CLIENT -nq "
    CREATE TABLE t1
    (
        a UInt32,
        b UInt32
    )
    ENGINE = MergeTree
    ORDER BY (a, b);

    INSERT INTO t1 SELECT number, number FROM numbers_mt(1e6);

    CREATE TABLE t2
    (
        a UInt32,
        b UInt32
    )
    ENGINE = MergeTree
    ORDER BY (a, b);

    INSERT INTO t2 VALUES (1, 1) (2, 2) (3, 3);

    CREATE TABLE t
    (
        a UInt32,
        b UInt32
    )
    ENGINE = Merge(currentDatabase(), 't*');"

query_id="${CLICKHOUSE_DATABASE}_merge_engine_set_index_$RANDOM$RANDOM"
$CLICKHOUSE_CLIENT --query_id="$query_id" --multiquery -q "
SELECT
    a,
    b
FROM t
WHERE (a, b) IN (
    SELECT DISTINCT
        a,
        b
    FROM t2
)
GROUP BY
    a,
    b
ORDER BY
    a ASC,
    b DESC
FORMAT Null;"

$CLICKHOUSE_CLIENT -nq "
SYSTEM FLUSH LOGS;

SELECT ProfileEvents['SelectedMarks']
FROM system.query_log
WHERE (query_id = '$query_id') AND (type = 'QueryFinish');
"