# name: test/optimizer/statistics/statistics_join_null.test
# description: Statistics propagation test with joins and null values
# group: [statistics]

statement ok
CREATE TABLE integers AS SELECT * FROM (VALUES (1), (2), (NULL)) tbl(i);

statement ok
CREATE TABLE integers2 AS SELECT * FROM (VALUES (4), (5), (NULL)) tbl(i);

statement ok
PRAGMA explain_output = OPTIMIZED_ONLY;

# inner join
# join cannot match: prune result
query II
EXPLAIN SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i1.i=i2.i ORDER BY 1;
----
logical_opt	<REGEX>:.*EMPTY_RESULT.*

# join is guaranteed to match... except there are null values!
# we CANNOT convert to a cross product
# (well... we could, if we would push a x IS NOT NULL filter on both sides)
# (but that is for another day)
query II
EXPLAIN SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i1.i<i2.i ORDER BY 1;
----
logical_opt	<!REGEX>:.*CROSS_PRODUCT.*

query II
EXPLAIN SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i1.i<=i2.i ORDER BY 1;
----
logical_opt	<!REGEX>:.*CROSS_PRODUCT.*

query II
EXPLAIN SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i2.i>i1.i ORDER BY 1;
----
logical_opt	<!REGEX>:.*CROSS_PRODUCT.*

query II
EXPLAIN SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i2.i>=i1.i ORDER BY 1;
----
logical_opt	<!REGEX>:.*CROSS_PRODUCT.*

query I
SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i1.i=i2.i ORDER BY 1;
----

query I
SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i1.i<i2.i ORDER BY 1;
----
1
1
2
2

query I
SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i1.i<=i2.i ORDER BY 1;
----
1
1
2
2

query I
SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i2.i>i1.i ORDER BY 1;
----
1
1
2
2

query I
SELECT i1.i FROM integers i1 JOIN integers2 i2 ON i2.i>=i1.i ORDER BY 1;
----
1
1
2
2