| From: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Amit Langote <amitlangote09(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] path toward faster partition pruning |
| Date: | 2018-04-04 07:04:52 |
| Message-ID: | c5331ff6-8b31-0742-758e-bd7b9aeddf07@lab.ntt.co.jp |
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| Lists: | pgsql-hackers |
On 2018/04/04 14:42, Amit Langote wrote:
> Attached v48.
I had forgotten to remove the static_pruning parameter I had added in the
v47, because it is no longer used. Static pruning now occurs even if a
step contains all Params, in which case each of
get_matching_hash/list/range_bounds() functions returns offsets of all
non-null datums, because the Params cannot be resolved to actual values
during static pruning.
Also, a few changes to get_matching_partitions that David had proposed in
his delta patch but I had failed to include them in v48.
Attached v49.
Thanks,
Amit
| Attachment | Content-Type | Size |
|---|---|---|
| v49-0001-Add-partsupfunc-to-PartitionSchemeData.patch | text/plain | 3.4 KB |
| v49-0002-Add-more-tests-for-partition-pruning.patch | text/plain | 16.7 KB |
| v49-0003-Faster-partition-pruning.patch | text/plain | 122.8 KB |
| v49-0004-Add-only-unpruned-partitioned-child-rels-to-part.patch | text/plain | 24.5 KB |
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