CreateQuery foo (children 3)
 Identifier foo
 Columns definition (children 1)
  ExpressionList (children 5)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration a (children 1)
    DataType Float64
   ColumnDeclaration b (children 1)
    DataType Float64
   ColumnDeclaration c (children 1)
    DataType Float64
   ColumnDeclaration d (children 1)
    DataType Float64
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier id
  Identifier id