Fix/blank double quote - Githubissues

ddf-project / DDF

Distributed DataFrame: Productivity = Power x Simplicity For Scientists & Engineers, on any Data Engine

http://ddf.io

Apache License 2.0

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Closed PangZhi closed 8 years ago

PangZhi commented 8 years ago

This PR is to fix the problem that "" can't be used in current sql. The SQL Parser is upgraded.

/cc @Huandao0812 @nhanitvn @hai-adatao

hai-adatao commented 8 years ago

UT passed @Huandao0812 do you have any comment, if not we can merge this @PangZhi