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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2020/06/04 04:11:00 UTC
[jira] [Updated] (SPARK-31868) Wrong results for week-based-year
[ https://issues.apache.org/jira/browse/SPARK-31868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyukjin Kwon updated SPARK-31868:
---------------------------------
Fix Version/s: (was: 3.0.0)
> 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
> Priority: Blocker
> Labels: correctness
>
> {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}
> {code:java}
> == Physical Plan ==
> *(1) Project [-28800000000 AS to_timestamp(2000-01-01, YYYY-MM-dd)#73]
> +- *(1) Scan OneRowRelation[]
> spark-sql> select to_timestamp('2000-01-01', 'YYYY-MM-dd');
> 1970-01-01 00:00:00
> {code}
> Seems that `-28800000000` is static
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