Package | Description |
---|---|
Aggregation | |
PrologDB |
Modifier and Type | Class and Description |
---|---|
class |
Average
use for integer aggregations
|
class |
Count
use for integer aggregations
|
class |
DoubleAgg |
class |
DoubleSum |
class |
GroupValue
this aggregation function returns the designated column value
of the first tuple of a table.
|
class |
IntAgg
use for integer aggregations
|
class |
IntSum
use for integer aggregations
|
Modifier and Type | Method and Description |
---|---|
Table |
Table.aggregate(Reducer... accums) |
Table |
Table.groupBy(java.lang.String[] fields,
Reducer... accums) |