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# name: test/sql/topn/test_top_n_lists.test
# description: Test Top N with lists
# group: [topn]
statement ok
PRAGMA enable_verification
# top-n with lists and null values
statement ok
CREATE TABLE tbl AS SELECT [i] l FROM range(1000) tbl(i) UNION ALL SELECT NULL l FROM range(3)
loop i 0 2
query I
SELECT l FROM tbl ORDER BY l NULLS FIRST LIMIT 5
----
NULL
NULL
NULL
[0]
[1]
query I
SELECT l FROM tbl ORDER BY l NULLS LAST LIMIT 5
----
[0]
[1]
[2]
[3]
[4]
query I
SELECT l FROM tbl ORDER BY l DESC NULLS FIRST LIMIT 5
----
NULL
NULL
NULL
[999]
[998]
query I
SELECT l FROM tbl ORDER BY l DESC NULLS LAST LIMIT 5
----
[999]
[998]
[997]
[996]
[995]
statement ok
DROP TABLE tbl
statement ok
CREATE TABLE tbl AS SELECT NULL l FROM range(3) UNION ALL SELECT [i] l FROM range(1000) tbl(i)
endloop
statement ok
DROP TABLE tbl
statement ok
CREATE TABLE tbl AS SELECT [i] l FROM range(1000) tbl(i) UNION ALL SELECT [NULL] l FROM range(3)
loop i 0 2
query I
SELECT l FROM tbl ORDER BY l NULLS FIRST LIMIT 5
----
[0]
[1]
[2]
[3]
[4]
query I
SELECT l FROM tbl ORDER BY l NULLS LAST LIMIT 5
----
[0]
[1]
[2]
[3]
[4]
query I
SELECT l FROM tbl ORDER BY l DESC NULLS FIRST LIMIT 5
----
[NULL]
[NULL]
[NULL]
[999]
[998]
query I
SELECT l FROM tbl ORDER BY l DESC NULLS LAST LIMIT 5
----
[NULL]
[NULL]
[NULL]
[999]
[998]
statement ok
DROP TABLE tbl
statement ok
CREATE TABLE tbl AS SELECT [NULL] l FROM range(3) UNION ALL SELECT [i] l FROM range(1000) tbl(i)
endloop
# bigger lists
query I
SELECT range(i) l FROM range(10) tbl(i) ORDER BY l DESC LIMIT 3
----
[0, 1, 2, 3, 4, 5, 6, 7, 8]
[0, 1, 2, 3, 4, 5, 6, 7]
[0, 1, 2, 3, 4, 5, 6]
query I
SELECT range(i) l FROM range(10) tbl(i) ORDER BY l ASC LIMIT 3
----
[]
[0]
[0, 1]
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