TAggregateAvg
InitAggregate
UpdateAggregate
GetNodeValue
TAggregateSum
ConvertArgument
TAggregateExpr
IsAggregate
TFPExprFunction
pt
CalcParams
Check
CreateFunction
Destroy
HasAggregate
AsString
TFPExprIdentifierNode
CreateIdentifier
NodeType
TFPExprNode
CheckNodeType
NodeValue