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Posted to issues@spark.apache.org by "Kent Yao (Jira)" <ji...@apache.org> on 2020/05/29 08:43:00 UTC
[jira] [Created] (SPARK-31868) Wrong results for week-based-year
Kent Yao created SPARK-31868:
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Summary: Wrong results for week-based-year
Key: SPARK-31868
URL: https://issues.apache.org/jira/browse/SPARK-31868
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.0.0, 3.1.0
Reporter: Kent Yao
{code:sql}
spark-sql> set spark.sql.legacy.timeParserPolicy=exception;
spark.sql.legacy.timeParserPolicy exception
spark-sql> explain select to_timestamp('1969-01-01', 'YYYY-MM-dd')
> ;
== Physical Plan ==
*(1) Project [-28800000000 AS to_timestamp(1969-01-01, YYYY-MM-dd)#37]
+- *(1) Scan OneRowRelation[]
spark-sql> set spark.sql.legacy.timeParserPolicy=legacy;
spark.sql.legacy.timeParserPolicy legacy
spark-sql> explain select to_timestamp('1969-01-01', 'YYYY-MM-dd');
== Physical Plan ==
*(1) Project [-31824000000000 AS to_timestamp(1969-01-01, YYYY-MM-dd)#53]
+- *(1) Scan OneRowRelation[]
spark-sql> set spark.sql.legacy.timeParserPolicy=exception;
spark.sql.legacy.timeParserPolicy exception
spark-sql> explain select to_timestamp('1969-01-01', 'YYYY-MM-dd');
== Physical Plan ==
*(1) Project [-28800000000 AS to_timestamp(1969-01-01, YYYY-MM-dd)#69]
+- *(1) Scan OneRowRelation[]
spark-sql> select to_timestamp('1969-01-01', 'YYYY-MM-dd');
1970-01-01 00:00:00
spark-sql> set spark.sql.legacy.timeParserPolicy=legacy;
spark.sql.legacy.timeParserPolicy legacy
spark-sql> explain select to_timestamp('1969-01-01', 'YYYY-MM-dd');
== Physical Plan ==
*(1) Project [-31824000000000 AS to_timestamp(1969-01-01, YYYY-MM-dd)#87]
+- *(1) Scan OneRowRelation[]
spark-sql> select to_timestamp('1969-01-01', 'YYYY-MM-dd');
1968-12-29 00:00:00
spark-sql> select to_timestamp('1969-01-01', 'yyyy-MM-dd');
1969-01-01 00:00:00
spark-sql> set spark.sql.legacy.timeParserPolicy=exception;
spark.sql.legacy.timeParserPolicy exception
spark-sql> select to_timestamp('1969-01-01', 'yyyy-MM-dd');
1969-01-01 00:00:00
{code}
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