Commit90c0987

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Fix bug in pairingheap_SpGistSearchItem_cmp()

Our item contains only so->numberOfNonNullOrderBys of distances. Reflect thatin the loop upper bound.Discussion:https://postgr.es/m/53536807-784c-e029-6e92-6da802ab8d60%40postgrespro.ruAuthor: Nikita GlukhovBackpatch-through: 12

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Original file line number	Diff line number	Diff line change
`@@ -56,7 +56,7 @@ pairingheap_SpGistSearchItem_cmp(const pairingheap_node *a,`
`56`	`56`	`else`
`57`	`57`	`{`
`58`	`58`	`/* Order according to distance comparison */`
`59`		`-for (i=0;i<so->numberOfOrderBys;i++)`
	`59`	`+for (i=0;i<so->numberOfNonNullOrderBys;i++)`
`60`	`60`	`{`
`61`	`61`	`if (isnan(sa->distances[i])&&isnan(sb->distances[i]))`
`62`	`62`	`continue;/* NaN == NaN */`

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