Commitf972ec5

Amit Kapila

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Add CHECK_FOR_INTERRUPTS while decoding changes.

While decoding changes in a loop, if we skip all the changes there is noCFI making the loop uninterruptible.Reported-by: Whale Song and Andrey BorodinBug: 17580Author: Masahiko SawadaReviwed-by: Amit KapilaBackpatch-through: 10Discussion:https://postgr.es/m/17580-849c1d5b6d7eb422@postgresql.orgDiscussion:https://postgr.es/m/B319ECD6-9A28-4CDF-A8F4-3591E0BF2369@yandex-team.ru

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Original file line number	Diff line number	Diff line change
`@@ -2096,6 +2096,8 @@ ReorderBufferProcessTXN(ReorderBuffer rb, ReorderBufferTXN txn,`
`2096`	`2096`	`Relationrelation=NULL;`
`2097`	`2097`	`Oidreloid;`
`2098`	`2098`
	`2099`	`+CHECK_FOR_INTERRUPTS();`
	`2100`	`+`
`2099`	`2101`	`/*`
`2100`	`2102`	`* We can't call start stream callback before processing first`
`2101`	`2103`	`* change.`

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