Commit5428ff4

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Merge visibility map crash-safety into index-only scan release note

item, per Robert Haas.

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Lines changed: 3 additions & 13 deletions

Original file line number	Diff line number	Diff line change
`@@ -413,10 +413,11 @@`
`413`	`413`	`<para>`
`414`	`414`	`This is often called "index-only scans" or "covering indexes".`
`415`	`415`	`This is possible for heap pages with exclusively all-visible`
`416`		`- tuples, as reported by the visibility map.`
	`416`	`+ tuples, as reported by the visibility map. The visibility map was`
	`417`	`+ made crash-safe as a necessary part of implementing this feature.`
`417`	`418`	`</para>`
`418`	`419`	`</listitem>`
`419`		`-`
	`420`	`+`
`420`	`421`	`<listitem>`
`421`	`422`	`<para>`
`422`	`423`	`Allow frequently uncontended locks to be recorded using a new`
`@@ -539,17 +540,6 @@`
`539`	`540`	`</para>`
`540`	`541`	`</listitem>`
`541`	`542`
`542`		`- <listitem>`
`543`		`- <para>`
`544`		`- Make the visibility map crash-safe (Robert Haas, Noah Misch)`
`545`		`- </para>`
`546`		`-`
`547`		`- <para>`
`548`		`- This helps vacuum be more efficient, and is necessary for`
`549`		`- index-only scans.`
`550`		`- </para>`
`551`		`- </listitem>`
`552`		`-`
`553`	`543`	`<listitem>`
`554`	`544`	`<para>`
`555`	`545`	`Improve PowerPC and Itanium spinlock performance (Manabu Ori,`

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