| From: | Sokolov Yura <funny(dot)falcon(at)postgrespro(dot)ru> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, pgsql-hackers-owner(at)postgresql(dot)org |
| Subject: | Re: Lazy hash table for XidInMVCCSnapshot (helps Zipfian a bit) |
| Date: | 2017-08-22 12:17:40 |
| Message-ID: | 20170822151740.3a13d69d@falcon-work |
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| Thread: | |
| Lists: | pgsql-hackers |
Simplified a bit and more commented patch version is in attach.
Algorithm were switched to linear probing, it makes code simpler and
clearer.
Flag usages were toggled: now it indicates that hash table were built,
it also makes code clearer.
XidInXip and some other functions got comments.
--
With regards,
Sokolov Yura aka funny_falcon
Postgres Professional: https://postgrespro.ru
The Russian Postgres Company
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-Make-hash-table-for-xip-in-XidInMVCCSnapshot-v3.patch | text/x-patch | 11.4 KB |
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