zclllyybb commented on code in PR #51683:
URL: https://github.com/apache/doris/pull/51683#discussion_r2183536339
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regression-test/suites/query_p0/sql_functions/json_functions/test_json_function.groovy:
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@@ -91,4 +91,10 @@ suite("test_json_function", "arrow_flight_sql") {
qt_sql """select get_json_string('{"name\\k" : 123}', '\$.name\\k')"""
qt_sql """select get_json_string('{"name\\k" : 123}', '\$.name\\\\k')"""
qt_sql """select get_json_string('{"name\\k" : 123}', '\$.name\\\\\\k')"""
+
+ qt_sql """ SELECT JSON_MERGE_PATCH('[]','[]') """
Review Comment:
有更多场景需要覆盖：
1. value为null且key只出现过这一次
2. 嵌套层级更深的json，内部的key相同，以及整个相同，等等
3. 空字符串以及null
and more
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