CreateQuery test_merge (children 3)
 Identifier test_merge
 Columns definition (children 1)
  ExpressionList (children 5)
   ColumnDeclaration a (children 1)
    DataType UInt64
   ColumnDeclaration b (children 1)
    DataType UInt64
   ColumnDeclaration c (children 1)
    DataType UInt64
   ColumnDeclaration d (children 1)
    DataType UInt64
   ColumnDeclaration e (children 1)
    DataType UInt64
 Storage definition (children 1)
  Function Merge (children 1)
   ExpressionList (children 2)
    Function database (children 1)
     ExpressionList
    Literal \'test\'
