Herman van Hovell created SPARK-13277:
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Summary: ANTLR ignores other rule using the USING keyword
Key: SPARK-13277
URL: https://issues.apache.org/jira/browse/SPARK-13277
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.0.0
Reporter: Herman van Hovell
Priority: Minor
ANTLR currently emits the following warning during compilation:
{noformat}
warning(200): org/apache/spark/sql/catalyst/parser/SparkSqlParser.g:938:7:
Decision can match input such as "KW_USING Identifier" using multiple
alternatives: 2, 3
As a result, alternative(s) 3 were disabled for that input
{noformat}
This means that some of the functionality of the parser is disabled. This is
introduced by the migration of the DDLParsers
(https://github.com/apache/spark/pull/10723). We should be able to fix this by
introducing a syntactic predicate for USING.
cc [~viirya]
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