Commitb8443ea

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Fix out-of-date version reference, grammar.

Time appears to be passing fast.Reported-By: Peter Geoghegan <pg@bowt.ie>

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Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -412,7 +412,7 @@ the cost of walking down the tree in such common cases.`
`412`	`412`
`413`	`413`	`The optimization works on the assumption that there can only be one`
`414`	`414`	`non-ignorable leaf rightmost page, and so not even a visible-to-everyone`
`415`		`-style interlock required. We cannot fail to detect that our hint was`
	`415`	`+style interlockisrequired. We cannot fail to detect that our hint was`
`416`	`416`	`invalidated, because there can only be one such page in the B-Tree at`
`417`	`417`	`any time. It's possible that the page will be deleted and recycled`
`418`	`418`	`without a backend's cached page also being detected as invalidated, but`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -318,7 +318,7 @@ XID less than this could be about to appear in the ProcArray, because of the`
`318`	`318`	`XidGenLock interlock discussed above.)`
`319`	`319`
`320`	`320`	`As GetSnapshotData is performance critical, it does not perform an accurate`
`321`		`-oldest-xmin calculation (it used to, untilv13). The contents of a snapshot`
	`321`	`+oldest-xmin calculation (it used to, untilv14). The contents of a snapshot`
`322`	`322`	`only depend on the xids of other backends, not their xmin. As backend's xmin`
`323`	`323`	`changes much more often than its xid, having GetSnapshotData look at xmins`
`324`	`324`	`can lead to a lot of unnecessary cacheline ping-pong. Instead`

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