Teach CLUSTER to use seqscan-and-sort when it's faster than indexscan.
... or at least, when the planner's cost estimates say it will be faster. Leonardo Francalanci, reviewed by Itagaki Takahiro and Tom Lane
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... or at least, when the planner's cost estimates say it will be faster. Leonardo Francalanci, reviewed by Itagaki Takahiro and Tom Lane