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https://issues.apache.org/jira/browse/SPARK-7012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559097#comment-14559097
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Santiago M. Mola commented on SPARK-7012:
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[~6133d] SQLContext parses DDL statements (such as CREATE TEMPORARY TABLE) with
an independent parser called DDLParser:
https://github.com/apache/spark/blob/f38e619c41d242143c916373f2a44ec674679f19/sql/core/src/main/scala/org/apache/spark/sql/sources/ddl.scala#L87
The parsing of the columns for the schema is done in DDLParser.column:
https://github.com/apache/spark/blob/f38e619c41d242143c916373f2a44ec674679f19/sql/core/src/main/scala/org/apache/spark/sql/sources/ddl.scala#L176
> Add support for NOT NULL modifier for column definitions on DDLParser
> ---------------------------------------------------------------------
>
> Key: SPARK-7012
> URL: https://issues.apache.org/jira/browse/SPARK-7012
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.3.0
> Reporter: Santiago M. Mola
> Priority: Minor
> Labels: easyfix
>
> Add support for NOT NULL modifier for column definitions on DDLParser. This
> would add support for the following syntax:
> CREATE TEMPORARY TABLE (field INTEGER NOT NULL) ...
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