"Fred Ingham" <[EMAIL PROTECTED]> writes:
> After dropping and recreating the indexes I have (in KB):

Ah, that's more like it.

> So, it appears that I am running into the pathological case.

Actually, a simpler explanation would be if you'd done a bunch of
updates and/or deletes at some point.  VACUUM currently never shrinks
indexes, so the excess index space might just represent the peak size
of your tables.  (Yes, improving that is on the to-do list.)

> In short, they are all needed for acceptable performance querying and
> retrieving values from the database.

You've got common queries that do selects with WHERE clauses referencing
each one of these columns?  Possible, certainly, but seems a bit odd...

> With respect to mySQL, I did verify that mySQL did in fact have all of the
> indexes I created and that they were saved in a single file (the *.MYI).

Hm.  Anyone know how mySQL represents indexes?  That still seems awfully
small.

                        regards, tom lane

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