Re: REINDEX not working for wastedspace - Mailing list pgsql-performance

From Venkat Balaji
Subject Re: REINDEX not working for wastedspace
Date
Msg-id CAFrxt0ixpDtSERgYyWN08zJws5K=boE0s0L9sCvtGfCiw8hOtQ@mail.gmail.com
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In response to REINDEX not working for wastedspace  (AI Rumman <rummandba@gmail.com>)
List pgsql-performance
Could you please let us know if you have analyzed after the re-indexing is done ?

This must show differences for only Indexes not the Tables.

For Tables, you need to do VACUUM FULL to show the difference.

Thanks
Venkat

On Wed, Sep 21, 2011 at 12:31 PM, AI Rumman <rummandba@gmail.com> wrote:
I am using Postgresql 9.0.1.

Using the query http://wiki.postgresql.org/wiki/Show_database_bloat, I got the following result for a table:

-[ RECORD 1 ]----+-----------------------------------------------
current_database | crm
schemaname       | public
tablename        | _attachments
tbloat           | 0.9
wastedbytes      | 0
iname            | attachments_description_type_attachmentsid_idx
ibloat           | 2.3
wastedibytes     | 5439488
-[ RECORD 2 ]----+-----------------------------------------------
current_database | crm
schemaname       | public
tablename        | _attachments
tbloat           | 0.9
wastedbytes      | 0
iname            | attachments_attachmentsid_idx
ibloat           | 0.2
wastedibytes     | 0
-[ RECORD 3 ]----+-----------------------------------------------
current_database | crm
schemaname       | public
tablename        | _attachments
tbloat           | 0.9
wastedbytes      | 0
iname            | _attachments_pkey
ibloat           | 0.2
wastedibytes     | 0

I REINDEXED  both the indexes and table, but I did not find any change in wastedspace or wastedispace.
Could you please tell me why?

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