From 40e981391395ae93aadfaf08cd343af65cc6252b Mon Sep 17 00:00:00 2001 From: Etsuro Fujita Date: Fri, 31 Aug 2018 16:42:30 +0900 Subject: [PATCH] Remove extra word from src/backend/optimizer/README --- src/backend/optimizer/README | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/backend/optimizer/README b/src/backend/optimizer/README index 0db3d36208..9c852a15ef 100644 --- a/src/backend/optimizer/README +++ b/src/backend/optimizer/README @@ -1109,7 +1109,7 @@ of joining relations. Partitionwise aggregates/grouping --------------------------------- -If the GROUP BY clause has contains all of the partition keys, all the rows +If the GROUP BY clause contains all of the partition keys, all the rows that belong to a given group must come from a single partition; therefore, aggregation can be done completely separately for each partition. Otherwise, partial aggregates can be computed for each partition, and then finalized