Commite33967b

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Comment on expectations for AutoVacuumWorkItem handlers.

This might prevent a repeat of the brin_summarize_range() vulnerabilitythat commita117ceb fixed.

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Lines changed: 4 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -2655,7 +2655,10 @@ perform_work_item(AutoVacuumWorkItem *workitem)`
`2655`	`2655`	`/* Use PortalContext for any per-work-item allocations */`
`2656`	`2656`	`MemoryContextSwitchTo(PortalContext);`
`2657`	`2657`
`2658`		`-/* have at it */`
	`2658`	`+/*`
	`2659`	`+ * Have at it. Functions called here are responsible for any required`
	`2660`	`+ * user switch and sandbox.`
	`2661`	`+ */`
`2659`	`2662`	`switch (workitem->avw_type)`
`2660`	`2663`	`{`
`2661`	`2664`	`caseAVW_BRINSummarizeRange:`

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