# name: test/sql/json/issues/issue19357.test
# description: Test issue 19357 - Expected unified vector format of type VARCHAR, but found type INT32
# group: [issues]

require json

query I
SELECT TO_JSON({'key_1': 'one'}) AS WITHOUT_KEEP_NULL
----
{"key_1":"one"}

query I
SELECT JSON_OBJECT('key_1', 'one', 'key_2', NULL) AS KEEP_NULL_1
----
{"key_1":"one","key_2":null}

statement error
SELECT JSON_OBJECT('key_1', 'one', NULL, 'two') AS KEEP_NULL_2
----
json_object() keys must be VARCHAR