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Remove AtSubStart_Notify.

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Allocate notify-related state lazily instead. This makes trivial
subtransactions noticeably faster.

Patch by me, reviewed and tested by Dilip Kumar, Kyotaro Horiguchi,
and Jeevan Ladhe.

Discussion: https://postgr.es/m/CA+TgmobE1J22S1eC-6N-je9LgrcwZypkwp+zH6JXo9mc=4Nk3A@mail.gmail.com
This commit is contained in:
Robert Haas
2019-10-04 08:19:25 -04:00
parent 6837632b75
commit 967e276e9f
3 changed files with 168 additions and 139 deletions
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1
src/include/commands/async.h
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@@ -40,7 +40,6 @@ extern void Async_UnlistenAll(void);
extern void PreCommit_Notify(void);
extern void AtCommit_Notify(void);
extern void AtAbort_Notify(void);
extern void AtSubStart_Notify(void);
extern void AtSubCommit_Notify(void);
extern void AtSubAbort_Notify(void);
extern void AtPrepare_Notify(void);