(no version information, might be only in CVS)
pg_field_type_oid -- Returns the type ID (OID) for the corresponding field numberpg_field_type_oid() returns an integer containing the type ID the given field_number in the given PostgreSQL result resource. Field numbering starts at 0.
You can get more information about the field type by querying PostgreSQL pg_type system table using the ID obtained with this function.
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