cloud-fan commented on a change in pull request #33707:
URL: https://github.com/apache/spark/pull/33707#discussion_r686946525
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File path: sql/core/src/test/resources/sql-tests/results/date.sql.out
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@@ -498,20 +532,28 @@ struct<date_sub(DATE '2001-10-01', 7):date>
-- !query
-select date '2001-10-01' - '7'
+select date '2001-10-01' - date '2001-09-28'
+-- !query schema
+struct<(DATE '2001-10-01' - DATE '2001-09-28'):interval day>
+-- !query output
+3 00:00:00.000000000
+
+
+-- !query
+select date '2001-10-01' - '2001-09-28'
-- !query schema
struct<>
-- !query output
org.apache.spark.sql.AnalysisException
-cannot resolve 'date_sub(DATE '2001-10-01', CAST('7' AS DOUBLE))' due to data
type mismatch: argument 2 requires (int or smallint or tinyint) type, however,
'CAST('7' AS DOUBLE)' is of double type.; line 1 pos 7
+cannot resolve 'date_sub(DATE '2001-10-01', CAST('2001-09-28' AS DOUBLE))' due
to data type mismatch: argument 2 requires (int or smallint or tinyint) type,
however, 'CAST('2001-09-28' AS DOUBLE)' is of double type.; line 1 pos 7
Review comment:
It's not a breaking change to allow this in non-ansi mode, we can do
this later.
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