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https://issues.apache.org/jira/browse/SPARK-15648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lihongli updated SPARK-15648:
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Affects Version/s: (was: 1.6.1)
Priority: Minor (was: Major)
Issue Type: Improvement (was: New Feature)
> add TeradataDialect
> -------------------
>
> Key: SPARK-15648
> URL: https://issues.apache.org/jira/browse/SPARK-15648
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Environment: Teardata database
> Reporter: lihongli
> Priority: Minor
>
> I found that Teradata does not have the Dialect in spark.So I want to add the
> TeradataDialect.scala in package org.apache.spark.sql.jdbc to support
> Teradata database better.
> I override three functions in TeradataDialect.scala:
> 1.The url: jdbc:teradata
> 2.The JDBCType:Teradata database does not support "TEXT",so we replace it
> with "VARCHAR(255)".Also we replace "BLOB" with "VARBYTE(4)".
> 3.Teradata database does not support sql like "LIMIT 1",so we replace it with
> "TOP 1".
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