Join troubles between pg_index and pg_indexes with capitalization in pg_indexes.tablename

I've got a script in which I'm attempting to list all indexes that
aren't the PK for a given table. The query I'm using for this is:

SELECT i.indexname, i.indexdef FROM pg_indexes i
INNER JOIN pg_index p ON p.indrelid = i.tablename::regclass::oid
WHERE i.schemaname = 'public'
AND i.tablename = 'tablename_goes_here'
AND p.indisprimary = false

This works for tables with what I'm sure we'd all consider to be
"proper" naming (all lower-case, underscores between words), but our
database unfortunately has vast numbers of tables that use camel case
and spaces in the table names (eg- "Status", "Sales Rep", etc.).

This works to get the right records from pg_indexes if I strip out the
join, but with the join in place Postgres does as it typically does when
you try to use a relation with capitalization in it without quoting. It
converts it to lower case, and I get an error like this (working with a
table called Status):

ERROR: relation "status" does not exist

The problem is similar, but different for tables like "Sales Rep" with a
space in the name:

ERROR: invalid name syntax

Is there a way I can modify this query to work with tables that require
special quoting for Postgres not to mangle their names? It'd be simple
if I didn't need to worry about excluding the PK from the results, but
this is part of a script that's dropping and re-creating all the indexes
prior to/after a COPY to increase performance, so dropping the PK index
is...sub-optimal, at best.

--
Bob Branch
Database Administrator
North American Bancard
250 Stevenson Hwy
Troy, MI 48083

bbranch(at)nabancard(dot)com
248-269-6000

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