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https://issues.apache.org/jira/browse/IMPALA-7956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-7956:
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Description:
Impala shell uses regular expression instead of a real SQL parser to determine
whether the with clause is a DML statement or not:
https://github.com/apache/impala/blob/ecf12bec42e11262b88dc0993e375fe4d8acaafb/shell/impala_shell.py#L1157.
The shell does need to be able to correctly split SQL statements, but we'd like
the rest of the SQL parsing to be done server-side.
was:Impala shell uses regular expression instead of a real SQL parser to
determine whether the with clause is a DML statement or not:
https://github.com/apache/impala/blob/ecf12bec42e11262b88dc0993e375fe4d8acaafb/shell/impala_shell.py#L1157.
We need to investigate on using Impala SQL parser instead.
> Avoid ad-hoc SQL parsing in shell
> ---------------------------------
>
> Key: IMPALA-7956
> URL: https://issues.apache.org/jira/browse/IMPALA-7956
> Project: IMPALA
> Issue Type: Improvement
> Components: Clients
> Affects Versions: Impala 3.2.0
> Reporter: Fredy Wijaya
> Priority: Major
>
> Impala shell uses regular expression instead of a real SQL parser to
> determine whether the with clause is a DML statement or not:
> https://github.com/apache/impala/blob/ecf12bec42e11262b88dc0993e375fe4d8acaafb/shell/impala_shell.py#L1157.
> The shell does need to be able to correctly split SQL statements, but we'd
> like the rest of the SQL parsing to be done server-side.
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