Re: Slow UPADTE, compared to INSERT

On Friday 05 December 2003 02:07, Ivar Zarans wrote:
> I have played around with explain and explain analyze and noticed one
> interesting oddity:
[snip]
> Why first example, where recid is given as numeric constant, is using
> sequential scan, but second example, where recid is given as string
> constant works with index scan, as expected? Third example shows, that
> numeric constant must be typecasted in order to function properly.
>
> Is this normal behaviour of fields with bigint type?

As Christopher says, normal (albeit irritating). Not sure it applies here -
all the examples you've shown me are using the index.

Well - I must admit I'm stumped. Unless you have a *lot* of indexes and
foreign keys to check, I can't see why it would take so long to update a
single row. Can you post the schema for the table?
--
Richard Huxton
Archonet Ltd