Re: How to fast the REINDEX

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raghavendra t <raagavendra.rao@xxxxxxxxx> wrote:
 
> I have a table with 40GB size, it has few indexes on it.
 
What does the table look like?  What indexes are there?
 
> When i try to REINDEX on the table,
 
Why are you doing that?
 
> its take a long time.
 
How long?
 
> I tried increasing the maintenance_work_mem, but still i havnt
> find a satisfying result.
 
What run time are you expecting?
 
> Questions
> =======
> 1. What are the parameters will effect, when issuing the REINDEX
>    command
> 2. Best possible way to increase the spead of the REINDEX
 
It's hard to answer that without more information, like PostgreSQL
version and configuration, for starters.  See:
 
http://wiki.postgresql.org/wiki/SlowQueryQuestions
 
My best guess is that you can make them instantaneous by not running
them.  A good VACUUM policy should make such runs unnecessary in
most cases -- at least on recent PostgreSQL versions.
 
-Kevin

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