ClickHouse/tests/queries/0_stateless/01395_limit_more_cases.sh

#!/usr/bin/env bash

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

SIZE=13
for OFFSET in {0..15}; do
    for LIMIT in {0..15}; do
        echo "SELECT
            $OFFSET, $LIMIT,
            count() AS c, min(number) AS first, max(number) AS last,
            throwIf(first != ($OFFSET < $SIZE AND $LIMIT > 0 ? $OFFSET : 0)),
            throwIf(last != ($OFFSET < $SIZE AND $LIMIT > 0 ? least($SIZE - 1, $OFFSET + $LIMIT - 1) : 0)),
            throwIf((c != 0 OR first != 0 OR last != 0) AND (c != last - first + 1))
            FROM (SELECT * FROM numbers($SIZE) LIMIT $OFFSET, $LIMIT);
        "
    done
done | $CLICKHOUSE_CLIENT -n --max_block_size 5

# Randomized test

ITERATIONS=1000
for _ in $(seq $ITERATIONS); do
    SIZE=$(($RANDOM % 100))
    OFFSET=$(($RANDOM % 111))
    LIMIT=$(($RANDOM % 111))

    echo "WITH count() AS c, min(number) AS first, max(number) AS last
            SELECT
                throwIf(first != ($OFFSET < $SIZE AND $LIMIT > 0 ? $OFFSET : 0)),
                throwIf(last != ($OFFSET < $SIZE AND $LIMIT > 0 ? least($SIZE - 1, $OFFSET + $LIMIT - 1) : 0)),
                throwIf((c != 0 OR first != 0 OR last != 0) AND (c != last - first + 1))
            FROM (SELECT * FROM numbers($SIZE) LIMIT $OFFSET, $LIMIT);
        "
done | $CLICKHOUSE_CLIENT -n --max_block_size $(($RANDOM % 20 + 1)) | uniq