pg_operator
The catalog pg_operator
stores information about operators.
See CREATE OPERATOR
and Section 36.14 for more information.
Table 51.35. pg_operator
Columns
Column Type Description |
---|
Row identifier |
Name of the operator |
The OID of the namespace that contains this operator |
Owner of the operator |
|
This operator supports merge joins |
This operator supports hash joins |
Type of the left operand |
Type of the right operand |
Type of the result |
Commutator of this operator, if any |
Negator of this operator, if any |
Function that implements this operator |
Restriction selectivity estimation function for this operator |
Join selectivity estimation function for this operator |
Unused column contain zeroes. For example, oprleft
is zero for a prefix operator.