[jira] [Assigned] (SPARK-26740) Statistics for date and timestamp columns depend on system time zone
[ https://issues.apache.org/jira/browse/SPARK-26740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Wenchen Fan reassigned SPARK-26740: --- Assignee: Maxim Gekk > Statistics for date and timestamp columns depend on system time zone > > > Key: SPARK-26740 > URL: https://issues.apache.org/jira/browse/SPARK-26740 > Project: Spark > Issue Type: Bug > Components: SQL >Affects Versions: 2.4.0 >Reporter: Maxim Gekk >Assignee: Maxim Gekk >Priority: Major > > While saving statistics for timestamp/date columns, default time zone is used > in conversion of internal type (microseconds or days since epoch) to textual > representation. The textual representation doesn't contain time zone. So, > when it is converted back to internal types (Long for TimestampType or > DateType), the Timestamp.valueOf and Date.valueOf are used in conversions. > The methods use current system time zone. > If system time zone is different while saving and retrieving statistics for > timestamp/date columns, restored microseconds/days since epoch will be > different. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-26740) Statistics for date and timestamp columns depend on system time zone
[ https://issues.apache.org/jira/browse/SPARK-26740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-26740: Assignee: Apache Spark > Statistics for date and timestamp columns depend on system time zone > > > Key: SPARK-26740 > URL: https://issues.apache.org/jira/browse/SPARK-26740 > Project: Spark > Issue Type: Bug > Components: SQL >Affects Versions: 2.4.0 >Reporter: Maxim Gekk >Assignee: Apache Spark >Priority: Major > > While saving statistics for timestamp/date columns, default time zone is used > in conversion of internal type (microseconds or days since epoch) to textual > representation. The textual representation doesn't contain time zone. So, > when it is converted back to internal types (Long for TimestampType or > DateType), the Timestamp.valueOf and Date.valueOf are used in conversions. > The methods use current system time zone. > If system time zone is different while saving and retrieving statistics for > timestamp/date columns, restored microseconds/days since epoch will be > different. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-26740) Statistics for date and timestamp columns depend on system time zone
[ https://issues.apache.org/jira/browse/SPARK-26740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-26740: Assignee: (was: Apache Spark) > Statistics for date and timestamp columns depend on system time zone > > > Key: SPARK-26740 > URL: https://issues.apache.org/jira/browse/SPARK-26740 > Project: Spark > Issue Type: Bug > Components: SQL >Affects Versions: 2.4.0 >Reporter: Maxim Gekk >Priority: Major > > While saving statistics for timestamp/date columns, default time zone is used > in conversion of internal type (microseconds or days since epoch) to textual > representation. The textual representation doesn't contain time zone. So, > when it is converted back to internal types (Long for TimestampType or > DateType), the Timestamp.valueOf and Date.valueOf are used in conversions. > The methods use current system time zone. > If system time zone is different while saving and retrieving statistics for > timestamp/date columns, restored microseconds/days since epoch will be > different. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
