brin/bpchar_bloom_ops (family)

Description

BRIN operator family containing 1 classes, 1 operator strategies and 6 support functions in this source build.

Object kind

Operator family

Index AM

BRIN

Usage

brin/bpchar_bloom_ops

Operator classes and families

An index definition can specify an operator class for each column of an index.

The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).

There are also some built-in operator classes besides the default ones:

Related entries

• BRIN Index AM

Documentation and source

• 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

Compare versions

PostgreSQL 13 → 14: added.

--- PostgreSQL 13
+++ PostgreSQL 14
@@ -1 +1,85 @@
-Not recorded in this version
+{
+  "attributes": {
+    "method": "brin",
+    "name": "bpchar_bloom_ops"
+  },
+  "classes": [
+    {
+      "default": "f",
+      "family": "bpchar_bloom_ops",
+      "input_type": "bpchar",
+      "key_type": "bpchar",
+      "method": "brin",
+      "name": "bpchar_bloom_ops"
+    }
+  ],
+  "kind": "family",
+  "operators": [
+    {
+      "family": "bpchar_bloom_ops",
+      "left_type": "bpchar",
+      "method": "brin",
+      "operator": "=(bpchar,bpchar)",
+      "purpose": "search",
+      "right_type": "bpchar",
+      "sort_family": "",
+      "strategy": "1"
+    }
+  ],
+  "support_functions": [
+    {
+      "family": "bpchar_bloom_ops",
+      "function": "brin_bloom_opcinfo(internal)",
+      "left_type": "bpchar",
+      "method": "brin",
+      "number": "1",
+      "result_type": "internal",
+      "right_type": "bpchar"
+    },
+    {
+      "family": "bpchar_bloom_ops",
+      "function": "hashbpchar(bpchar)",
+      "left_type": "bpchar",
+      "method": "brin",
+      "number": "11",
+      "result_type": "int4",
+      "right_type": "bpchar"
+    },
+    {
+      "family": "bpchar_bloom_ops",
+      "function": "brin_bloom_add_value(internal,internal,internal,internal)",
+      "left_type": "bpchar",
+      "method": "brin",
+      "number": "2",
+      "result_type": "bool",
+      "right_type": "bpchar"
+    },
+    {
+      "family": "bpchar_bloom_ops",
+      "function": "brin_bloom_consistent(internal,internal,internal,int4)",
+      "left_type": "bpchar",
+      "method": "brin",
+      "number": "3",
+      "result_type": "bool",
+      "right_type": "bpchar"
+    },
+    {
+      "family": "bpchar_bloom_ops",
+      "function": "brin_bloom_union(internal,internal,internal)",
+      "left_type": "bpchar",
+      "method": "brin",
+      "number": "4",
+      "result_type": "bool",
+      "right_type": "bpchar"
+    },
+    {
+      "family": "bpchar_bloom_ops",
+      "function": "brin_bloom_options(internal)",
+      "left_type": "bpchar",
+      "method": "brin",
+      "number": "5",
+      "result_type": "void",
+      "right_type": "bpchar"
+    }
+  ]
+}

Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.

Related entries

• brin/bit_minmax_ops (family)
• brin/box_inclusion_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)
• brin/float_minmax_multi_ops (family)