# name: test/sql/binder/test_having_alias.test
# description: Test that aliases can be used in the HAVING clause
# group: [binder]

statement ok
PRAGMA enable_verification

statement ok
CREATE TABLE integers AS SELECT * FROM range(5) tbl(i);

# use an alias to an aggregate in the having clause
query II
SELECT i, COUNT(*) AS k FROM integers GROUP BY i HAVING k=1 ORDER BY i;
----
0	1
1	1
2	1
3	1
4	1

# alias cannot be qualified
statement error
SELECT i, COUNT(*) AS k FROM integers GROUP BY i HAVING integers.k=1 ORDER BY i;
----
Binder Error: column k must appear in the GROUP BY clause

# column name wins over the alias
query II
SELECT 1 AS i, COUNT(*) FROM integers GROUP BY i HAVING i=2;
----
1	1

# as if qualified
query II
SELECT i AS j, COUNT(*) AS i FROM integers GROUP BY j HAVING integers.i=1 ORDER BY i;
----
1	1

# or we use the group by alias
query II
SELECT i AS j, COUNT(*) AS i FROM integers GROUP BY j HAVING j=1 ORDER BY i;
----
1	1

query I
SELECT COUNT(i) AS j FROM integers HAVING j=5;
----
5


query I
SELECT COUNT(i) AS i FROM integers HAVING i=5;
----
5

query I
SELECT COUNT(i) AS i FROM integers GROUP BY i HAVING i=5;
----

query I
SELECT COUNT(i) AS i FROM integers HAVING i=5 ORDER BY i;
----
5

# use the same alias multiple times
query I
SELECT COUNT(i) AS j FROM integers HAVING j=j;
----
5

# multiple alias in HAVING to expression with side-effects
query I
SELECT COUNT(*) FROM (SELECT i, SUM(RANDOM()) AS k FROM integers GROUP BY i HAVING k=k) tbl(i, k);
----
5

# if this is qualified we get an error
statement error
SELECT COUNT(i) AS i FROM integers HAVING integers.i=5 ORDER BY i;
----
Binder Error: column i must appear in the GROUP BY clause

# recursive alias without aggregate
statement error
SELECT i + i AS i FROM integers HAVING i=5 ORDER BY i;
----
Binder Error: column i must appear in the GROUP BY clause