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authorTom Lane <tgl@sss.pgh.pa.us>2015-10-01 10:31:22 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2015-10-01 10:31:45 -0400
commitb44a55fa9563afcee05fda28fc9f0b0204d46d4d (patch)
tree1ce9bb7b0539759611bdafe94fb82561712a3576
parent2bbe8a6847a0b449a96b29a1e2d3ed7b9a55ef37 (diff)
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Fix documentation error in commit 8703059c6b55c427100e00a09f66534b6ccbfaa1.
Etsuro Fujita spotted a thinko in the README commentary.
-rw-r--r--src/backend/optimizer/README2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/optimizer/README b/src/backend/optimizer/README
index b896f91a3dd..b930354a292 100644
--- a/src/backend/optimizer/README
+++ b/src/backend/optimizer/README
@@ -254,7 +254,7 @@ lower leftjoin has min LHS of {B} and min RHS of {C,D}. Given such
information, join_is_legal would think it's okay to associate the upper
join into the lower join's RHS, transforming the query to
B leftjoin (A leftjoin (C innerjoin D) on Pa) on (Pbcd)
-which yields totally wrong answers. We prevent that by forcing the min LHS
+which yields totally wrong answers. We prevent that by forcing the min RHS
for the upper join to include B. This is perhaps overly restrictive, but
such cases don't arise often so it's not clear that it's worth developing a
more complicated system.