Re: Parallel Index Scans
Amit Kapila <amit.kapila16@gmail.com>
From: Amit Kapila <amit.kapila16@gmail.com>
To: Haribabu Kommi <kommi.haribabu@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Anastasia Lubennikova <a.lubennikova@postgrespro.ru>, Anastasia Lubennikova <lubennikovaav@gmail.com>,
pgsql-hackers <pgsql-hackers@postgresql.org>, Rahila Syed <rahilasyed.90@gmail.com>
Date: 2017-01-19T09:27:19Z
Lists: pgsql-hackers
On Wed, Jan 18, 2017 at 6:25 AM, Haribabu Kommi <kommi.haribabu@gmail.com> wrote: > > > On Mon, Jan 16, 2017 at 11:11 PM, Amit Kapila <amit.kapila16@gmail.com> > wrote: >> >> >> Changed as per suggestion. >> >> >> I have also rebased the optimizer/executor support patch >> (parallel_index_opt_exec_support_v4.patch) and added a test case in >> it. > > > Thanks for the patch. Here are comments found during review. > > parallel_index_scan_v4.patch: > > > + amtarget = (char *) ((void *) target) + offset; > > The above calcuation can be moved after NULL check? > > + * index_beginscan_parallel - join parallel index scan > > The name and the description doesn't sync properly, any better description? > > + BTPARALLEL_DONE, > + BTPARALLEL_IDLE > +} PS_State; > > The order of above two enum values can be changed according to their use. > Changed code as per your suggestion. > > parallel_index_opt_exec_support_v4.patch: > > +#include "access/parallel.h" > > Why is it required to be include nbtree.c? i didn't find > any code changes in the patch. > Removed. -- With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com
Commits
-
Replace min_parallel_relation_size with two new GUCs.
- 51ee6f3160d2 10.0 landed
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Factor out logic for computing number of parallel workers.
- 716c7d4b242f 10.0 cited
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Support condition variables.
- e8ac886c2477 10.0 cited
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Allow parallel custom and foreign scans.
- 69d34408e5e7 9.6.0 cited
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Add a C API for parallel heap scans.
- ee7ca559fcf4 9.6.0 cited