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# name: test/sql/variables/test_variables.test
# description: Test SQL variables
# group: [variables]
statement ok
PRAGMA enable_verification
statement ok
SET VARIABLE animal = 'duck'
query I
SELECT GETVARIABLE('animal')
----
duck
statement ok
PREPARE v1 AS SELECT GETVARIABLE($1);
query I
EXECUTE v1('animal');
----
duck
statement ok
CREATE MACRO _(x) AS getvariable(x);
query I
SELECT _('animal')
----
duck
# overwriting
statement ok
SET VARIABLE animal='bird'
query I
SELECT GETVARIABLE('animal')
----
bird
query III
FROM duckdb_variables();
----
animal bird VARCHAR
query III
SHOW VARIABLES
----
animal bird VARCHAR
statement ok
RESET VARIABLE animal
query I
SELECT GETVARIABLE('animal')
----
NULL
# setting from a subquery
statement ok
CREATE TABLE animal_list(a VARCHAR);
statement ok
INSERT INTO animal_list VALUES ('duck'), ('goose');
statement ok
SET VARIABLE animals=(SELECT LIST(a) FROM animal_list)
query I
SELECT GETVARIABLE('animals')
----
[duck, goose]
statement error
SET VARIABLE animals=UNNEST([1,2,3])
----
can only handle a single value
# variable does not exist
query I
SELECT GETVARIABLE('xxx')
----
NULL
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