# name: test/sql/copy/csv/17744.test
# description: Test for issue #17744
# group: [csv]

statement ok
PRAGMA enable_verification

statement ok
COPY (
    SELECT
        -- The string must start with a hash to reproduce the issue
        '#hash start' AS first_column,
        1 AS second_column
    UNION ALL
    SELECT
        -- Quoted value can go anywhere between rows 1 and 2048 just not 1 or 2048. It must be between the hashes
        '"my, quoted value"' AS first_column,
        1 AS second_column
    UNION ALL
    -- These rows make the csv 2048 rows long which is required to reproduce
    SELECT
        'any value' AS first_column,
        1 AS second_column
    FROM range(0, 2045)
    UNION ALL
    SELECT
        -- This hash value must be somewhere in the string just not at the beginning
        'hash not at start #' AS column_value,
     1 AS second_column
) TO '__TEST_DIR__/test.csv' (format csv, header 1);

query II
SELECT columns, comment FROM sniff_csv('__TEST_DIR__/test.csv', null_padding = true)
----
[{'name': first_column, 'type': VARCHAR}, {'name': second_column, 'type': BIGINT}]	(empty)

query II
SELECT columns, comment FROM sniff_csv('__TEST_DIR__/test.csv', null_padding = true, comment = '#')
----
[{'name': first_column, 'type': VARCHAR}, {'name': second_column, 'type': BIGINT}]	#


statement ok
COPY (
    SELECT
        -- The string must start with a hash to reproduce the issue
        '#hash start' AS first_column,
        1 AS second_column
    UNION ALL
    SELECT
        -- Quoted value can go anywhere between rows 1 and 2048 just not 1 or 2048. It must be between the hashes
        '"my, quoted value"' AS first_column,
        1 AS second_column
    UNION ALL
    -- These rows make the csv 2048 rows long which is required to reproduce
    SELECT
        'any value' AS first_column,
        1 AS second_column
    FROM range(0, 2045)
    UNION ALL
    SELECT
        -- This hash value must be somewhere in the string just not at the beginning
        'hash not at start #' AS column_value,
     1 AS second_column
) TO '__TEST_DIR__/test_2.csv' (format csv, header 1, QUOTE '');

query II
SELECT columns, comment FROM sniff_csv('__TEST_DIR__/test_2.csv')
----
[{'name': first_column, 'type': VARCHAR}, {'name': second_column, 'type': BIGINT}]	(empty)