CreateQuery default_table (children 3)
 Identifier default_table
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration key (children 2)
    DataType UInt64
    Literal UInt64_42
   ColumnDeclaration value1 (children 2)
    DataType UInt64
    Function multiply (children 1)
     ExpressionList (children 2)
      Identifier key
      Identifier key
   ColumnDeclaration value2 (children 1)
    Function multiply (children 1)
     ExpressionList (children 2)
      Identifier value1
      Identifier key
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
