Re: Parallel bitmap heap scan
Jeff Janes <jeff.janes@gmail.com>
From: Jeff Janes <jeff.janes@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Dilip Kumar <dilipbalaut@gmail.com>,
Haribabu Kommi <kommi.haribabu@gmail.com>, Rafia Sabih <rafia.sabih@enterprisedb.com>,
tushar <tushar.ahuja@enterprisedb.com>, Amit Khandekar <amitdkhan.pg@gmail.com>,
Amit Kapila <amit.kapila16@gmail.com>, Andres Freund <andres@anarazel.de>,
pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-02-07T21:13:43Z
Lists: pgsql-hackers
On Tue, Feb 7, 2017 at 1:03 PM, Robert Haas <robertmhaas@gmail.com> wrote: > On Sun, Feb 5, 2017 at 9:48 AM, Dilip Kumar <dilipbalaut@gmail.com> wrote: > >> I think maybe we should rename the functions to element_allocate, > >> element_free, and element_allocator_ctx, or something like that. The > >> current names aren't capitalized consistently with other things in > >> this module, and putting the word "element" in there would make it > >> more clear what the purpose of this thing is. > > > > Fixed as per the suggestion > > Eh, not really. You changed the memory context to be called > element_allocator_ctx, rather than changing the args passed to the > element allocator to have that name, which is what I had in mind. > > I did some assorted renaming and other cosmetic improvements and committed > 0002. > I'm getting compiler errors: In file included from execGrouping.c:47: ../../../src/include/lib/simplehash.h:91: error: redefinition of typedef 'simplehash_allocate' ../../../src/include/lib/simplehash.h:91: note: previous declaration of 'simplehash_allocate' was here ../../../src/include/lib/simplehash.h:92: error: redefinition of typedef 'simplehash_free' ../../../src/include/lib/simplehash.h:92: note: previous declaration of 'simplehash_free' was here gcc version 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC) Cheers, Jeff
Commits
-
Pass DSA_ALLOC_HUGE when allocating a shared TIDBitmap.
- a171f01501e1 10.0 landed
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Support parallel bitmap heap scans.
- f35742ccb7aa 10.0 landed
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tidbitmap: Support shared iteration.
- 98e6e89040a0 10.0 landed
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Shut down Gather's children before shutting down Gather itself.
- acf555bc53ac 10.0 landed
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Revise the way the element allocator for a simplehash is specified.
- c3c4f6e1740b 10.0 cited
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Refactor bitmap heap scan estimation of heap pages fetched.
- da08a6598973 10.0 landed
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Use more efficient hashtable for tidbitmap.c to speed up bitmap scans.
- 75ae538bc316 10.0 cited