| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Boszormenyi Zoltan <zb(at)cybertec(dot)at> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Hans-Jürgen Schönig <postgres(at)cybertec(dot)at>, Robert Haas <robertmhaas(at)gmail(dot)com>, pgsql-hackers Hackers <pgsql-hackers(at)postgresql(dot)org>, Josh Berkus <josh(at)agliodbs(dot)com> |
| Subject: | Re: plan time of MASSIVE partitioning ... |
| Date: | 2010-10-28 13:36:57 |
| Message-ID: | 11493.1288273017@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Boszormenyi Zoltan <zb(at)cybertec(dot)at> writes:
> This means add_child_rel_equivalences() is still takes
> too much time, the previously posted test case calls this
> function 482 times, it's called for almost every 10th entry
> added to eq_classes. The elog() I put into this function says
> that at the last call list_length(eq_classes) == 4754.
That seems like a ridiculously large number of ECs. What is the
test query again?
regards, tom lane
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