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The "QueryLanguage" page has been changed by HyunsikChoi:
https://wiki.apache.org/tajo/QueryLanguage?action=diff&rev1=11&rev2=12

  == DROP TABLE ==
  {{{
  DROP TABLE <table_name>
+ }}}
+ 
+ = SQL Expressions =
+ == Arithmetic Expressions ==
+ == Type Casts ==
+ A type cast converts a specified-typed data to another-typed data. Tajo has 
two type cast syntax:
+ {{{
+ CAST ( expression AS type )
+ expression::type
+ }}}
+ 
+ == String Expressions ==
+ == Function Call ==
+ {{{
+ function_name ([expression [, expression ... ]] )
  }}}
  
  = DML =

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