apache/spark — pull request #2594 by ravipesala (2014-09-30 16:48:09+00:00)
Title: [SPARK-3708][SQL] Backticks aren't handled correctly is aliases

The below query gives error
sql("SELECT k FROM (SELECT \`key\` AS \`k\` FROM src) a")
It gives error because the aliases are not cleaned so it could not be resolved in further processing.