| PostgreSQL 9.4.0 문서 | |||
|---|---|---|---|
| 이전 | 위로 | 장 57. SP-GiST Indexes | 다음 |
The core PostgreSQL distribution includes the SP-GiST operator classes shown in 표 57-1.
표 57-1. Built-in SP-GiST Operator Classes
| Name | Indexed Data Type | Indexable Operators |
|---|---|---|
| kd_point_ops | point | << <@ <^ >> >^ ~= |
| quad_point_ops | point | << <@ <^ >> >^ ~= |
| range_ops | any range type | && &< &> -|- << <@ = >> @> |
| text_ops | text | < <= = > >= ~<=~ ~<~ ~>=~ ~>~ |
Of the two operator classes for type point, quad_point_ops is the default. kd_point_ops supports the same operators but uses a different index data structure which may offer better performance in some applications.