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PostgreSQL 7.3.21 Documentation
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3.4. pg_amop

pg_amop stores information about operators associated with index access method operator classes. There is one row for each operator that is a member of an operator class.

Table 3-4. pg_amop Columns

Name	Type	References	Description
amopclaid	`oid`	pg_opclass.oid	the index opclass this entry is for
amopstrategy	`int2`		operator strategy number
amopreqcheck	`bool`		index hit must be rechecked
amopopr	`oid`	pg_operator.oid	the operator's pg_operator OID

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