CreateQuery m (children 3)
 Identifier m
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration a (children 1)
    DataType String
   ColumnDeclaration date (children 1)
    DataType Date
   ColumnDeclaration f (children 1)
    DataType UInt8
 Storage definition (children 1)
  Function Merge (children 1)
   ExpressionList (children 2)
    Function currentDatabase (children 1)
     ExpressionList
    Literal \'^(t1|t2)$\'
