cloud-fan commented on a change in pull request #33707:
URL: https://github.com/apache/spark/pull/33707#discussion_r686944682
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File path: sql/core/src/test/resources/sql-tests/results/ansi/timestamp.sql.out
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@@ -533,136 +533,145 @@ struct<to_timestamp(2019 10:10:10, yyyy
hh:mm:ss):timestamp>
-- !query
-select timestamp'2011-11-11 11:11:11' + interval '2' day
+select timestamp'2011-11-11 11:11:11' - timestamp'2011-11-11 11:11:10'
-- !query schema
-struct<TIMESTAMP '2011-11-11 11:11:11' + INTERVAL '2' DAY:timestamp>
+struct<(TIMESTAMP '2011-11-11 11:11:11' - TIMESTAMP '2011-11-11
11:11:10'):interval day to second>
-- !query output
-2011-11-13 11:11:11
+0 00:00:01.000000000
-- !query
-select timestamp'2011-11-11 11:11:11' - interval '2' day
+select date'2020-01-01' - timestamp'2019-10-06 10:11:12.345678'
-- !query schema
-struct<TIMESTAMP '2011-11-11 11:11:11' - INTERVAL '2' DAY:timestamp>
+struct<(DATE '2020-01-01' - TIMESTAMP '2019-10-06 10:11:12.345678'):interval
day to second>
-- !query output
-2011-11-09 11:11:11
+86 13:48:47.654322000
-- !query
-select timestamp'2011-11-11 11:11:11' + interval '2' second
+select timestamp'2019-10-06 10:11:12.345678' - date'2020-01-01'
-- !query schema
-struct<TIMESTAMP '2011-11-11 11:11:11' + INTERVAL '02' SECOND:timestamp>
+struct<(TIMESTAMP '2019-10-06 10:11:12.345678' - DATE '2020-01-01'):interval
day to second>
-- !query output
-2011-11-11 11:11:13
+-86 13:48:47.654322000
-- !query
-select timestamp'2011-11-11 11:11:11' - interval '2' second
+select timestamp'2011-11-11 11:11:11' - '2011-11-11 11:11:10'
-- !query schema
-struct<TIMESTAMP '2011-11-11 11:11:11' - INTERVAL '02' SECOND:timestamp>
+struct<>
-- !query output
-2011-11-11 11:11:09
+org.apache.spark.sql.AnalysisException
+cannot resolve '(TIMESTAMP '2011-11-11 11:11:11' - '2011-11-11 11:11:10')' due
to data type mismatch: argument 2 requires (timestamp or timestamp without time
zone) type, however, ''2011-11-11 11:11:10'' is of string type.; line 1 pos 7
Review comment:
This is a bug, cc @gengliangwang
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