TJX2014 commented on a change in pull request #28856:
URL: https://github.com/apache/spark/pull/28856#discussion_r444858262
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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@@ -2589,6 +2589,8 @@ object Sequence {
}
}
+ // To generate time sequences, we use scale 1 in TemporalSequenceImpl
+ // for `TimestampType`, while MICROS_PER_DAY for `DateType`
Review comment:
presto> select sequence(date('2011-03-01'),date('2011-03-02'),interval
'1' hour);
Query 20200624_122744_00002_pehix failed: sequence step must be a day
interval if start and end values are dates
presto> select sequence(date('2011-03-01'),date('2011-03-02'),interval '1'
day);
_col0
[2011-03-01, 2011-03-02]
(1 row)
Query 20200624_122757_00003_pehix, FINISHED, 1 node
Splits: 17 total, 17 done (100.00%)
0:00 [0 rows, 0B] [0 rows/s, 0B/s]
presto> select sequence(date('2011-03-01'),date('2011-03-02'),interval '1'
month);
_col0
[2011-03-01]
(1 row)
Query 20200624_122806_00004_pehix, FINISHED, 1 node
Splits: 17 total, 17 done (100.00%)
0:00 [0 rows, 0B] [0 rows/s, 0B/s]
presto> select sequence(date('2011-03-01'),date('2011-03-02'),interval '1'
year);
_col0
[2011-03-01]
(1 row)
Query 20200624_122810_00005_pehix, FINISHED, 1 node
Splits: 17 total, 17 done (100.00%)
0:00 [0 rows, 0B] [0 rows/s, 0B/s]
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