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# name: test/sql/copy/csv/recursive_read_csv.test
# description: Test read CSV function in a recursive CTE
# group: [csv]
statement ok
PRAGMA enable_verification
# first create a table from read csv, and use that in a recursive cte
statement ok
create table r AS SELECT * FROM read_csv('{DATA_DIR}/csv/test/date.csv', columns=STRUCT_PACK(d := 'DATE'), header=0, auto_detect=0);
query II
WITH RECURSIVE t(i) AS
(
SELECT 1, NULL::DATE
UNION ALL
(
SELECT i+1, d
FROM t, r
WHERE i<5
)
)
SELECT * FROM t ORDER BY i;
----
1 NULL
2 2019-06-05
3 2019-06-05
4 2019-06-05
5 2019-06-05
# directly calling the function should be equivalent
query II
WITH RECURSIVE t(i) AS
(
SELECT 1, NULL::DATE
UNION ALL
(
SELECT i+1, d
FROM t, read_csv('{DATA_DIR}/csv/test/date.csv', columns=STRUCT_PACK(d := 'DATE'), header=0, auto_detect=0)
WHERE i<5
)
)
SELECT * FROM t ORDER BY i;
----
1 NULL
2 2019-06-05
3 2019-06-05
4 2019-06-05
5 2019-06-05
query I
SELECT * FROM read_csv_auto('{DATA_DIR}/csv/test/date.csv')
----
2019-06-05
# should also work if we use auto detect
query II
WITH RECURSIVE t(i) AS
(
SELECT 1, NULL::DATE
UNION ALL
(
SELECT i+1, d
FROM t, read_csv('{DATA_DIR}/csv/test/date.csv', header=0, auto_detect=1) r(d)
WHERE i<5
)
)
SELECT * FROM t ORDER BY i;
----
1 NULL
2 2019-06-05
3 2019-06-05
4 2019-06-05
5 2019-06-05
|
