| --- |
| title: pg_amproc |
| --- |
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| The `pg_amproc` table stores information about support procedures associated with index access method operator classes. There is one row for each support procedure belonging to an operator class. |
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| <a id="topic1__fx143898"></a> |
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| | column | type | references | description | |
| |-----------------|---------|-----------------|--------------------------------------------| |
| | `amopclaid` | oid | pg\_opclass.oid | The index operator class this entry is for | |
| | `amprocsubtype` | oid | pg\_type.oid | Subtype, if cross-type routine, else zero | |
| | `amprocnum` | int2 | | Support procedure number | |
| | `amproc` | regproc | pg\_proc.oid | OID of the procedure | |
| |
| : <span class="tablecap">Table 1. pg\_catalog.pg\_amproc</span> |
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