| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Gerardo Herzig <gherzig(at)fmed(dot)uba(dot)ar> |
| Cc: | pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: index not being used. Why? |
| Date: | 2007-03-09 16:29:26 |
| Message-ID: | 321.1173457766@sss.pgh.pa.us |
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| Lists: | pgsql-admin pgsql-sql |
Gerardo Herzig <gherzig(at)fmed(dot)uba(dot)ar> writes:
> Watch the last row of the explain command. It makes a sequential scan on the pages table, like it is not using the index on the "id" field.
> The result itself is OK, but i will populate the tables so i think that later that sequential scan would be a problem.
Why do you think that the plans won't change when the tables get bigger?
regards, tom lane
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