CreateQuery x (children 3)
 Identifier x
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration i (children 1)
    DataType int
   ColumnDeclaration j (children 1)
    DataType int
   ColumnDeclaration k (children 1)
    DataType int
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set
