cloud-fan commented on a change in pull request #27906: [SPARK-31150][SQL]
Parsing seconds fraction with variable length for timestamp
URL: https://github.com/apache/spark/pull/27906#discussion_r393127838
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File path: sql/core/src/test/resources/sql-tests/results/datetime.sql.out
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@@ -391,3 +391,122 @@ select date '2001-10-01' - date '2001-09-28'
struct<subtractdates(DATE '2001-10-01', DATE '2001-09-28'):interval>
-- !query output
3 days
+
+
+-- !query
+select to_timestamp(v, 'yyyy-MM-dd HH:mm:ss.SSSSSS[zzz]') from values
+ ('2019-10-06 10:11:12.'),
+ ('2019-10-06 10:11:12.0'),
+ ('2019-10-06 10:11:12.1'),
+ ('2019-10-06 10:11:12.12'),
+ ('2019-10-06 10:11:12.123UTC'),
+ ('2019-10-06 10:11:12.1234'),
+ ('2019-10-06 10:11:12.12345CST'),
+ ('2019-10-06 10:11:12.123456PST') t(v)
+-- !query schema
+struct<to_timestamp(t.`v`, 'yyyy-MM-dd HH:mm:ss.SSSSSS[zzz]'):timestamp>
+-- !query output
+2019-10-06 03:11:12.123
Review comment:
The result looks weird. Where is `.123` parsed from?
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