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Revert hooks for session start and end, take two

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The location of the session end hook has been chosen so as it is
possible to allow modules to do their own transactions, however any
trying to any any subsystem which went through before_shmem_exit()
would cause issues, limiting the pluggability of the hook.

Per discussion with Tom Lane and Andres Freund.

Discussion: https://postgr.es/m/18722.1569906636@sss.pgh.pa.us
This commit is contained in:
Michael Paquier
2019-10-02 09:55:27 +09:00
parent 540f316809
commit 9555cc8d2b
11 changed files with 0 additions and 271 deletions
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6
src/backend/tcop/postgres.c
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@ -171,9 +171,6 @@ static ProcSignalReason RecoveryConflictReason;
static MemoryContext row_description_context = NULL;
static StringInfoData row_description_buf;
/* Hook for plugins to get control at start of session */
session_start_hook_type session_start_hook = NULL;
/* ----------------------------------------------------------------
* decls for routines only used in this file
* ----------------------------------------------------------------
@ -3971,9 +3968,6 @@ PostgresMain(int argc, char *argv[],
if (!IsUnderPostmaster)
PgStartTime = GetCurrentTimestamp();
if (session_start_hook)
(*session_start_hook) ();
/*
* POSTGRES main processing loop begins here
*