| Class | Description | 
|---|---|
| AbsFunExpr | ABS function expression | 
| ConcatFunExpr | CONCAT function expression | 
| CurrentDateFunExpr | CURRENT_DATE function expression | 
| CurrentTimeFunExpr | CURRENT_TIME function expression | 
| CurrentTimestampFunExpr | CURRENT_TIMESTAMP function expression | 
| DateTimeFunExpr | Base for CURRENT_DATE/TIME/TIMESTAMP function expression | 
| FunExpr | Function expression | 
| LengthFunExpr | LENGTH function expression | 
| LocateFunExpr | LOCATE function expression | 
| LowerFunExpr | LOWER function expression | 
| MaxFunExpr | MAX() function expression | 
| MinFunExpr | MIN() function expression | 
| ModFunExpr | MOD function expression | 
| SizeFunExpr | SIZE function expression | 
| SqrtFunExpr | SQRT function expression | 
| SubstringFunExpr | SUBSTRING function expression | 
| SumFunExpr | SUM() function expression | 
| TrimFunExpr | TRIM function expression | 
| UpperFunExpr | UPPER function expression | 
| Enum | Description | 
|---|---|
| TrimFunExpr.TrimSemantics |