Re: Strange Index sizes

On 04/24/2018 11:41 PM, Mohsen Bande wrote:
> Hi all,
> I have a user table with ~8M records, with different type of fields
> b-tree indexed.

Could we see table schema and index statements?

> by investigating index sizes, i found two strange things:
> 1- all index sizes are almost the same, regardless of field type
> (boolean, string, bigint)

What was the command you used to determine the sizes?

> 2 - all of them are much bigger that my expectation, e.g. for a boolean
> field, even after reindexing, the size is 217MB, so each record takes
> ~27 bytes.
>
> could some one shed some light on this please? or refer any user
> oriented documentation about index size estimations

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com