gengliangwang commented on a change in pull request #34836:
URL: https://github.com/apache/spark/pull/34836#discussion_r765388194
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File path: sql/core/src/test/resources/sql-tests/results/map.sql.out
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@@ -16,3 +16,69 @@ select map(1, 'a', 2, 'b')[5]
struct<map(1, a, 2, b)[5]:string>
-- !query output
NULL
+
+
+-- !query
+select map_contains_key(map(1, 'a', 2, 'b'), 5)
+-- !query schema
+struct<mapcontainskey(map(1, a, 2, b), 5):boolean>
+-- !query output
+false
+
+
+-- !query
+select map_contains_key(map(1, 'a', 2, 'b'), 1)
+-- !query schema
+struct<mapcontainskey(map(1, a, 2, b), 1):boolean>
+-- !query output
+true
+
+
+-- !query
+select map_contains_key(map(1, 'a', 2, 'b'), 5.0)
+-- !query schema
+struct<mapcontainskey(map(1, a, 2, b), 5.0):boolean>
+-- !query output
+false
+
+
+-- !query
+select map_contains_key(map(1, 'a', 2, 'b'), 1.0)
+-- !query schema
+struct<mapcontainskey(map(1, a, 2, b), 1.0):boolean>
+-- !query output
+true
+
+
+-- !query
+select map_contains_key(map(1.0, 'a', 2, 'b'), 5)
+-- !query schema
+struct<mapcontainskey(map(1.0, a, 2, b), 5):boolean>
+-- !query output
+false
+
+
+-- !query
+select map_contains_key(map(1.0, 'a', 2, 'b'), 1)
+-- !query schema
+struct<mapcontainskey(map(1.0, a, 2, b), 1):boolean>
+-- !query output
+true
+
+
+-- !query
+select map_contains_key(map('1', 'a', '2', 'b'), 1)
+-- !query schema
+struct<>
+-- !query output
+org.apache.spark.sql.AnalysisException
+cannot resolve 'mapcontainskey(map('1', 'a', '2', 'b'), 1)' due to data type
mismatch: Input to function mapcontainskey should have been map followed by a
value with same element type, but it's [map<string,string>, int].; line 1 pos 7
Review comment:
This is actually consistent with `array_contains`:
```
spark-sql> select array_contains(array('1','2'), 1)
Error in query: cannot resolve 'array_contains(array('1', '2'), 1)' due to
data type mismatch
```
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