- getName
The name of he function, i.e. "MAX"
- getParameters
The list of parameters of the function (if any, else null) If the parameter is
"*", allColumns is se
- setName
- <init>
- setParameters
- setAllColumns
- isAllColumns
true if the parameter to the function is "*"
- isEscaped
Return true if it's in the form "{fn function_body() }"
- setEscaped
- isDistinct
true if the function is "distinct"
- setDistinct
- toString