brin/integer_minmax_ops (family)
BRIN 操作符家族 containing 3 classes, 45 operator strategies and 12 support functions in this source build。
当前查看 PostgreSQL 18.6。
说明
BRIN 操作符家族 containing 3 classes, 45 operator strategies and 12 support functions in this source build。
- 对象种类
- 操作符家族
- 索引访问方法
- BRIN
用法
brin/integer_minmax_ops操作符类与家族
一个索引定义可以为索引的每一列指定一个 操作符类 。
操作符类标识该索引在该列上要使用哪些操作符。例如，类型 int4 上的一个 B-树索引会使用 int4_ops 类；这个操作符类包含对 int4 值进行比较所需的函数。实践中，列数据类型的默认操作符类通常已经足够。之所以存在操作符类，主要是因为对某些数据类型来说，可能存在多种有意义的索引行为。例如，我们可能希望按绝对值排序一种复数数据类型，也可能希望按实部排序。我们可以通过为该数据类型定义两个操作符类，并在创建索引时选择合适的那个来做到这一点。操作符类决定了基础排序顺序（之后还可以通过添加排序选项 COLLATE 、 ASC / DESC 和/或 NULLS FIRST / NULLS LAST 来修改）。
除了默认操作符类之外，还有一些内置操作符类：
家族中的操作符策略
家族支持函数
| 支持函数编号 | 左侧类型 | 右侧类型 | 函数签名 | 返回类型 |
|---|---|---|---|---|
| 1 | int8 | int8 | brin_minmax_opcinfo(internal) | 内部 |
| 2 | int8 | int8 | brin_minmax_add_value(internal,internal,internal,internal) | bool |
| 3 | int8 | int8 | brin_minmax_consistent(internal,internal,internal) | bool |
| 4 | int8 | int8 | brin_minmax_union(internal,internal,internal) | bool |
| 1 | int2 | int2 | brin_minmax_opcinfo(internal) | 内部 |
| 2 | int2 | int2 | brin_minmax_add_value(internal,internal,internal,internal) | bool |
| 3 | int2 | int2 | brin_minmax_consistent(internal,internal,internal) | bool |
| 4 | int2 | int2 | brin_minmax_union(internal,internal,internal) | bool |
| 1 | int4 | int4 | brin_minmax_opcinfo(internal) | 内部 |
| 2 | int4 | int4 | brin_minmax_add_value(internal,internal,internal,internal) | bool |
| 3 | int4 | int4 | brin_minmax_consistent(internal,internal,internal) | bool |
| 4 | int4 | int4 | brin_minmax_union(internal,internal,internal) | bool |
本家族的操作符类
相关条目
文档与源码
- Matching PostgreSQL source archive
- PostgreSQL 18 English manual: indexes-opclass.html
- PostgreSQL 18 English manual: catalog-pg-opfamily.html
- PostgreSQL 18 English manual: catalog-pg-amop.html
- PostgreSQL 18 English manual: catalog-pg-amproc.html
来源构建
- 版本
- 18.6
- 构建
- https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
- 来源指纹
555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f
版本比较
PostgreSQL 13 → 14: 属性变化。
以下差异保留原始字段名与英文源描述。
--- PostgreSQL 13
+++ PostgreSQL 14
@@ -495,7 +495,7 @@
{
"family": "integer_minmax_ops",
"function": "brin_minmax_opcinfo(internal)",
- "left_type": "int2",
+ "left_type": "int4",
"method": "brin",
"number": "1",
"result_type": "internal",
@@ -504,7 +504,7 @@
{
"family": "integer_minmax_ops",
"function": "brin_minmax_opcinfo(internal)",
- "left_type": "int2",
+ "left_type": "int8",
"method": "brin",
"number": "1",
"result_type": "internal",
@@ -512,287 +512,71 @@
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_opcinfo(internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "1",
- "result_type": "internal",
+ "function": "brin_minmax_add_value(internal,internal,internal,internal)",
+ "left_type": "int2",
+ "method": "brin",
+ "number": "2",
+ "result_type": "bool",
"right_type": "int2"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_opcinfo(internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "1",
- "result_type": "internal",
+ "function": "brin_minmax_add_value(internal,internal,internal,internal)",
+ "left_type": "int4",
+ "method": "brin",
+ "number": "2",
+ "result_type": "bool",
"right_type": "int4"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_opcinfo(internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "1",
- "result_type": "internal",
+ "function": "brin_minmax_add_value(internal,internal,internal,internal)",
+ "left_type": "int8",
+ "method": "brin",
+ "number": "2",
+ "result_type": "bool",
"right_type": "int8"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_opcinfo(internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "1",
- "result_type": "internal",
+ "function": "brin_minmax_consistent(internal,internal,internal)",
+ "left_type": "int2",
+ "method": "brin",
+ "number": "3",
+ "result_type": "bool",
"right_type": "int2"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_opcinfo(internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "1",
- "result_type": "internal",
+ "function": "brin_minmax_consistent(internal,internal,internal)",
+ "left_type": "int4",
+ "method": "brin",
+ "number": "3",
+ "result_type": "bool",
"right_type": "int4"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_opcinfo(internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "1",
- "result_type": "internal",
+ "function": "brin_minmax_consistent(internal,internal,internal)",
+ "left_type": "int8",
+ "method": "brin",
+ "number": "3",
+ "result_type": "bool",
"right_type": "int8"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "2",
+ "function": "brin_minmax_union(internal,internal,internal)",
+ "left_type": "int2",
+ "method": "brin",
+ "number": "4",
"result_type": "bool",
"right_type": "int2"
},
{
"family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_add_value(internal,internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "2",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_consistent(internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "3",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
"function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int2",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int4"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int4",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int8"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int8",
- "method": "brin",
- "number": "4",
- "result_type": "bool",
- "right_type": "int2"
- },
- {
- "family": "integer_minmax_ops",
- "function": "brin_minmax_union(internal,internal,internal)",
- "left_type": "int8",
+ "left_type": "int4",
"method": "brin",
"number": "4",
"result_type": "bool",比较已记录的接口与属性，排除来源指纹和构建元数据。某个样本中没有记录，不能据此判断实际引入或移除的版本。
相关条目
brin/bit_minmax_ops (family)brin/box_inclusion_ops (family)brin/bpchar_bloom_ops (family)brin/bpchar_minmax_ops (family)brin/bytea_bloom_ops (family)brin/bytea_minmax_ops (family)brin/char_bloom_ops (family)brin/char_minmax_ops (family)brin/datetime_bloom_ops (family)brin/datetime_minmax_multi_ops (family)brin/datetime_minmax_ops (family)brin/float_bloom_ops (family)
导出 JSON · 返回运算符族 · 收录范围为 PostgreSQL 10 至 20；最早采样版本不一定是实际引入版本。