When in doubt, try the explain command

Not exactly sure about postgres but in general LIKE can
only use an index in the case of LIKE "Something%"

LIKE "%Something" or LIKE "%Something%"
won't use an index since it would have to scan the entire
index to find all matches.

Alex.



On Wed, 14 Mar 2001, Alexander Jerusalem wrote:

> Hi,
> 
> Can anyone telle me if and when a LIKE query uses an index? I've compiled 
> postgres with locale support. Does that have any influence indexes?
> 
> thanks,
> 
> Alexander Jerusalem
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
> 


---------------------------(end of broadcast)---------------------------
TIP 2: you can get off all lists at once with the unregister command
    (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])

Reply via email to