Mercury is a collection of UDFs for Hive. There are two types of Hive UDFs: simple and generic. While simple UDFs are easier to construct, they are less flexible and generally less efficient.
| Category | Description |
|---|---|
| collect | Deals with collections (Array, Map, Struct) |
| statistics | Deals with statistical operations |
.
├── ...
├── collect
│ ├── ArrayIntersection
│ ├── ArraySort
│ ├── ArraySubtract
│ ├── ArrayUnion
│ └── ...
├── statistcs
│ ├── JaccardSimilarity
│ └── ...
└── ...