Ted Yu created SPARK-10561:
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Summary: Provide tooling for auto-generating Spark SQL reference
manual
Key: SPARK-10561
URL: https://issues.apache.org/jira/browse/SPARK-10561
Project: Spark
Issue Type: Improvement
Reporter: Ted Yu
Here is the discussion thread:
http://search-hadoop.com/m/q3RTtcD20F1o62xE
Richard Hillegas made the following suggestion:
A machine-generated BNF, however, is easy to imagine. But perhaps not so easy
to implement. Spark's SQL grammar is implemented in Scala, extending the DSL
support provided by the Scala language. I am new to programming in Scala, so I
don't know whether the Scala ecosystem provides any good tools for
reverse-engineering a BNF from a class which extends
scala.util.parsing.combinator.syntactical.StandardTokenParsers.
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