slim bouguerra created HIVE-21665:
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Summary: Unable to reconstruct valid SQL query from AST when back
ticks are used
Key: HIVE-21665
URL: https://issues.apache.org/jira/browse/HIVE-21665
Project: Hive
Issue Type: Bug
Reporter: slim bouguerra
Hive-6013 have introduced a parser rule that removes all the
{code:java}
`{code}
from identifiers or query alias, this can result in some issue when we need to
reconstruct the actual SQL query from the AST.
To reproduce the bug you can use explain analyze statement as the following
query
{code:java}
explain analyze select 'literal' as `alias with space`;
{code}
This bugs will affect how Ranger plugin and probably result cache, where in
both places we need to reconstruct the query from AST.
The current work around is to avoid white spaces within Aliases.
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