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author | Gonçalo Silva <goncalossilva@gmail.com> | 2011-04-17 17:08:49 +0100 |
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committer | Gonçalo Silva <goncalossilva@gmail.com> | 2011-04-17 17:08:49 +0100 |
commit | 1c2b2233c3a7ec76c0a0eddf5b8be45c489be133 (patch) | |
tree | 56f2b767c3a4f1f14c51606bf2cbb714a98c5f89 /railties/guides/source/active_record_querying.textile | |
parent | 8d558cb1b069410c8f693295c9c4e2ffc9661e06 (diff) | |
parent | b6843f22ac42b503f6b8ac00105ca0679049be7d (diff) | |
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Merge branch 'master' of https://github.com/rails/rails into performance_test
Diffstat (limited to 'railties/guides/source/active_record_querying.textile')
-rw-r--r-- | railties/guides/source/active_record_querying.textile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/railties/guides/source/active_record_querying.textile b/railties/guides/source/active_record_querying.textile index f3a10b8b92..df8e35ed33 100644 --- a/railties/guides/source/active_record_querying.textile +++ b/railties/guides/source/active_record_querying.textile @@ -790,7 +790,7 @@ Post.includes(:comments).where("comments.visible", true) This would generate a query which contains a +LEFT OUTER JOIN+ whereas the +joins+ method would generate one using the +INNER JOIN+ function instead. <ruby> - SELECT "posts"."id" AS t0_r0, ... "comments"."updated_at" AS t1_r5 FROM "posts" LEFT OUTER JOIN "comments" ON "comments"."post_id" = "posts"."id" WHERE (comments.visible) + SELECT "posts"."id" AS t0_r0, ... "comments"."updated_at" AS t1_r5 FROM "posts" LEFT OUTER JOIN "comments" ON "comments"."post_id" = "posts"."id" WHERE (comments.visible = 1) </ruby> If there was no +where+ condition, this would generate the normal set of two queries. |