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# name: test/sql/function/list/lambdas/transform_with_index.test
# description: Test the list_transform function with an index parameter
# group: [lambdas]
statement ok
SET lambda_syntax='DISABLE_SINGLE_ARROW'
query I
SELECT list_transform([1, 2, 3], lambda x: list_transform([4, 5, 6], lambda y, y_i: x + y + y_i));
----
[[6, 8, 10], [7, 9, 11], [8, 10, 12]]
query I
SELECT list_transform(['abc'], lambda x, i: x[i + 1]);
----
[b]
query I
SELECT list_filter([1, 2, 1], lambda x, y: x >= y);
----
[1, 2]
query I
SELECT
list_transform([1, 2, 3], lambda x:
list_transform([4, 5, 6], lambda y:
list_transform([7, 8, 9], lambda z, i:
x + y + z + i)));
----
[[[13, 15, 17], [14, 16, 18], [15, 17, 19]], [[14, 16, 18], [15, 17, 19], [16, 18, 20]], [[15, 17, 19], [16, 18, 20], [17, 19, 21]]]
query I
SELECT list_transform([10, 20, 30], lambda x, i: x + i);
----
[11, 22, 33]
query I
SELECT list_transform([1, 2, 3, 4, 5, 6], lambda x, i: x * i);
----
[1, 4, 9, 16, 25, 36]
query I
SELECT list_transform([6, 5, 4, 3, 2, 1], lambda x, i: x * i);
----
[6, 10, 12, 12, 10, 6]
query I
SELECT list_transform([1, NULL, 3, 4, 5, 6], lambda x, i: x + i);
----
[2, NULL, 6, 8, 10, 12]
query I
SELECT list_transform(NULL, lambda x, i: x + i);
----
NULL
query I
SELECT list_transform(['1', '2', '3', '4'], lambda x, i: (x || ' + ' || CAST(i AS string)));
----
[1 + 1, 2 + 2, 3 + 3, 4 + 4]
query I
SELECT list_transform([1,2,3,4,5], lambda x, i: (x * 10 / i));
----
[10.0, 10.0, 10.0, 10.0, 10.0]
# tests with column references
statement ok
CREATE TABLE tbl(a int[]);
statement ok
INSERT INTO tbl VALUES ([5, 4, 3]), ([1, 2, 3]), (NULL), ([NULL, 101, 12]);
query I
SELECT list_transform(a, lambda x, i: x + i) FROM tbl;
----
[6, 6, 6]
[2, 4, 6]
NULL
[NULL, 103, 15]
query I
SELECT list_transform(a, lambda x, i: x + i + list_any_value(a)) FROM tbl;
----
[11, 11, 11]
[3, 5, 7]
NULL
[NULL, 204, 116]
statement ok
DROP TABLE tbl;
statement ok
CREATE TABLE tbl(a int[], b int, c int);
statement ok
INSERT INTO tbl VALUES ([5,4,3], 5, 10), ([1,2,3], 7, 14), (NULL, 9, 18), ([10,NULL,12], 11, 22);
query I
SELECT list_transform(a, lambda x, i: (c / b ) * (x + i)) FROM tbl;
----
[12.0, 12.0, 12.0]
[4.0, 8.0, 12.0]
NULL
[22.0, NULL, 30.0]
# test very large lists
query I transform list
SELECT range(1, 20000, 2);
----
query I transform list
SELECT list_transform(range(10000), lambda x, i: x + i);
----
query I
SELECT list_transform([1, 2, 3], lambda x, x_i: list_transform([4, 5, 6], lambda y: x + y + x_i));
----
[[6, 7, 8], [8, 9, 10], [10, 11, 12]]
query I
SELECT list_transform([1, 2, 3], lambda x, x_i: list_transform([4, 5, 6], lambda y, y_i: x + y + x_i + y_i));
----
[[7, 9, 11], [9, 11, 13], [11, 13, 15]]
query I
SELECT
list_transform([1, 2, 3], lambda x, i:
list_transform([4, 5, 6], lambda y:
list_transform([7, 8, 9], lambda z:
x + y + z + i)));
----
[[[13, 14, 15], [14, 15, 16], [15, 16, 17]], [[15, 16, 17], [16, 17, 18], [17, 18, 19]], [[17, 18, 19], [18, 19, 20], [19, 20, 21]]]
query I
SELECT
list_transform([1, 2, 3], lambda x:
list_transform([4, 5, 6], lambda y, i:
list_transform([7, 8, 9], lambda z:
x + y + z + i)));
----
[[[13, 14, 15], [15, 16, 17], [17, 18, 19]], [[14, 15, 16], [16, 17, 18], [18, 19, 20]], [[15, 16, 17], [17, 18, 19], [19, 20, 21]]]
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