Commit6c01708

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Added for Neil Conway:

> * Use CHECK constraints to improve optimizer decisions

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Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`TODO list for PostgreSQL`
`2`	`2`	`========================`
`3`		`-Last updated:Tue Jul 3012:56:06 EDT 2002`
	`3`	`+Last updated:Tue Jul 3015:33:45 EDT 2002`
`4`	`4`
`5`	`5`	`Current maintainer:Bruce Momjian (pgman@candle.pha.pa.us)`
`6`	`6`
`@@ -446,6 +446,7 @@ Optimizer / Executor`
`446`	`446`	`* Precompile SQL functions to avoid overhead (Neil Conway)`
`447`	`447`	`* Add utility to compute accurate random_page_cost value`
`448`	`448`	`* Improve ability to display optimizer analysis using OPTIMIZER_DEBUG`
	`449`	`+* Use CHECK constraints to improve optimizer decisions`
`449`	`450`
`450`	`451`	`Miscellaneous`
`451`	`452`	`=============`

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