| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, k(dot)jamison(at)fujitsu(dot)com, "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)fujitsu(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andres Freund <andres(at)anarazel(dot)de>, Robert Haas <robertmhaas(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [Patch] Optimize dropping of relation buffers using dlist |
| Date: | 2020-11-10 05:33:51 |
| Message-ID: | CA+hUKG+riaypvaLA_TqbA1T9kcBf7bX-BMSt4k+jpB6GajuPoA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Nov 10, 2020 at 6:18 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> Do we always truncate all the blocks? What if the vacuum has cleaned
> last N (say 100) blocks then how do we handle it?
Oh, hmm. Yeah, that idea only works for DROP, not for truncate last N.
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