51.34. pg_operator

oid oid

Row identifier

oprname name

Name of the operator

oprnamespace oid (references pg_namespace . oid )

The OID of the namespace that contains this operator

oprowner oid (references pg_authid . oid )

Owner of the operator

oprkind char

b = infix ( " both " ), l = prefix ( " left " ), r = postfix ( " right " )

oprcanmerge bool

This operator supports merge joins

oprcanhash bool

This operator supports hash joins

oprleft oid (references pg_type . oid )

Type of the left operand

oprright oid (references pg_type . oid )

Type of the right operand

oprresult oid (references pg_type . oid )

Type of the result

oprcom oid (references pg_operator . oid )

Commutator of this operator, if any

oprnegate oid (references pg_operator . oid )

Negator of this operator, if any

oprcode regproc (references pg_proc . oid )

Function that implements this operator

oprrest regproc (references pg_proc . oid )

Restriction selectivity estimation function for this operator

oprjoin regproc (references pg_proc . oid )

Join selectivity estimation function for this operator