Robert James <srobertja...@gmail.com> wrote:

> I'm confused: What's the difference between
>   col LIKE  'foo%'
> and
>   col LIKE f1 || '%'
> ?

The planner knows that 'foo%' doesn't start with a wildcard.

> Either way, it's anchored to the beginning of the string.

Not necessarily.

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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