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68.2. 内置运算符类#
核心PostgreSQL发行版包含表 68.1中所示的GiST运算符类。(附录 F中描述的一些可选模块提供了其他GiST运算符类。)
表 68.1. 内置GiST运算符类
名称 | 可索引运算符 | 排序运算符 |
---|---|---|
box_ops | << (box, box) | <-> (box, point) |
&<(盒子,盒子) | ||
&&(盒子,盒子) | ||
&>(盒子,盒子) | ||
>>(盒子,盒子) | ||
~=(盒子,盒子) | ||
@>(盒子,盒子) | ||
<@(盒子,盒子) | ||
&<|(盒子,盒子) | ||
<<|(盒子,盒子) | ||
|>>(盒子,盒子) | ||
|&>(盒子,盒子) | ||
~(盒子,盒子) | ||
@(盒子,盒子) | ||
circle_ops | <<(圆,圆) | <->(圆,点) |
&<(圆,圆) | ||
&>(圆,圆) | ||
>>(圆,圆) | ||
<@(圆,圆) | ||
@>(圆,圆) | ||
~=(圆,圆) | ||
&&(圆,圆) | ||
|>>(圆,圆) | ||
<<|(圆,圆) | ||
&<|(圆,圆) | ||
|&>(圆,圆) | ||
@(圆,圆) | ||
~(圆,圆) | ||
inet_ops | <<(inet,inet) | |
<<=(inet,inet) | ||
>>(inet,inet) | ||
>>=(inet,inet) | ||
=(inet,inet) | ||
<>(inet,inet) | ||
<(inet,inet) | ||
<=(inet,inet) | ||
>(inet,inet) | ||
>=(inet,inet) | ||
&&(inet,inet) | ||
multirange_ops | =(anymultirange,anymultirange) | |
&&(anymultirange,anymultirange) | ||
&&(anymultirange,anyrange) | ||
@>(anymultirange,anyelement) | ||
@>(anymultirange,anymultirange) | ||
@>(anymultirange,anyrange) | ||
<@(anymultirange,anymultirange) | ||
<@(anymultirange,anyrange) | ||
<<(anymultirange,anymultirange) | ||
<<(anymultirange,anyrange) | ||
>>(anymultirange,anymultirange) | ||
>>(anymultirange,anyrange) | ||
&<(anymultirange,anymultirange) | ||
&<(anymultirange,anyrange) | ||
&>(anymultirange,anymultirange) | ||
&>(anymultirange,anyrange) | ||
-|-(anymultirange,anymultirange) | ||
-|-(anymultirange,anyrange) | ||
point_ops | |>>(点,点) | <->(点,点) |
<<(点,点) | ||
>>(点,点) | ||
<<|(点,点) | ||
~=(点,点) | ||
<@(点,盒子) | ||
<@(点,多边形) | ||
<@(点,圆) | ||
poly_ops | <<(多边形,多边形) | <->(多边形,点) |
&<(多边形,多边形) | ||
&>(多边形,多边形) | ||
>>(多边形,多边形) | ||
<@(多边形,多边形) | ||
@>(多边形,多边形) | ||
~=(多边形,多边形) | ||
&&(多边形,多边形) | ||
<<|(多边形,多边形) | ||
&<|(多边形,多边形) | ||
|&>(多边形,多边形) | ||
|>>(多边形,多边形) | ||
@(多边形,多边形) | ||
~(多边形,多边形) | ||
range_ops | =(任意范围,任意范围) | |
&&(任意范围,任意范围) | ||
&&(任意范围,任意多范围) | ||
@>(任意范围,任意元素) | ||
@>(任意范围,任意范围) | ||
@>(任意范围,任意多范围) | ||
<@(任意范围,任意范围) | ||
<@(任意范围,任意多范围) | ||
<<(任意范围,任意范围) | ||
<<(任意范围,任意多范围) | ||
>>(任意范围,任意范围) | ||
>>(任意范围,任意多范围) | ||
&<(任意范围,任意范围) | ||
&<(任意范围,任意多范围) | ||
&>(任意范围,任意范围) | ||
&>(任意范围,任意多范围) | ||
-|-(任意范围,任意范围) | ||
-|-(任意范围,任意多范围) | ||
tsquery_ops | <@(tsquery,tsquery) | |
@>(tsquery,tsquery) | ||
tsvector_ops | @@(tsvector,tsquery) |
由于历史原因,inet_ops
运算符类不是inet
和cidr
类型的默认类。要使用它,请在CREATE INDEX
中提及类名,例如
CREATE INDEX ON my_table USING GIST (my_inet_column inet_ops);