Commit60ba742

Alexander Korotkov

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Some comments about GUCs.

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Original file line number	Diff line number	Diff line change
`@@ -136,6 +136,9 @@ typedef union`
`136`	`136`	`structconfig_enum_enum;`
`137`	`137`	`}mixedStruct;`
`138`	`138`
	`139`	`+/*`
	`140`	`+ * Set or reset history GUCs in shared memory.`
	`141`	`+ */`
`139`	`142`	`staticvoid`
`140`	`143`	`set_history_gucs()`
`141`	`144`	`{`
`@@ -149,6 +152,7 @@ set_history_gucs()`
`149`	`152`	`guc_vars=get_guc_variables();`
`150`	`153`	`numOpts=GetNumConfigOptions();`
`151`	`154`
	`155`	`+/* Change pointers in already defined GUCs */`
`152`	`156`	`for (i=0;i<numOpts;i++)`
`153`	`157`	`{`
`154`	`158`	`mixedStructvar= (mixedStruct)guc_vars[i];`
`@@ -177,6 +181,7 @@ set_history_gucs()`
`177`	`181`	`}`
`178`	`182`	`}`
`179`	`183`
	`184`	`+/* Define undefined GUCs */`
`180`	`185`	`if (!history_size_found)`
`181`	`186`	`DefineCustomIntVariable("pg_stat_wait.history_size",`
`182`	`187`	`"Sets size of waits history.",NULL,`
`@@ -198,6 +203,7 @@ set_history_gucs()`
`198`	`203`	`PGC_SUSET,0,`
`199`	`204`	`shmem_bool_guc_check_hook,NULL,NULL);`
`200`	`205`
	`206`	`+/* Re-read config for already defined GUCs which values are missed */`
`201`	`207`	`if (history_size_found\|\|history_period_found\|\|history_skip_latch_found)`
`202`	`208`	`ProcessConfigFile(PGC_SIGHUP);`
`203`	`209`	`}`

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