Commit8c7fc86

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Doc: fix example of recursive query.

Compute total number of sub-parts correctly, per jason@banfelder.netSimon RiggsDiscussion:https://postgr.es/m/166161184718.1235920.6304070286124217754@wrigleys.postgresql.org

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Original file line number	Diff line number	Diff line change
`@@ -2195,7 +2195,7 @@ SELECT sum(n) FROM t;`
`2195`	`2195`	`WITH RECURSIVE included_parts(sub_part, part, quantity) AS (`
`2196`	`2196`	`SELECT sub_part, part, quantity FROM parts WHERE part = 'our_product'`
`2197`	`2197`	`UNION ALL`
`2198`		`- SELECT p.sub_part, p.part, p.quantity`
	`2198`	`+ SELECT p.sub_part, p.part, p.quantity * pr.quantity`
`2199`	`2199`	`FROM included_parts pr, parts p`
`2200`	`2200`	`WHERE p.part = pr.sub_part`
`2201`	`2201`	`)`

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