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-rw-r--r--Docs/manual.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/Docs/manual.texi b/Docs/manual.texi
index c39da1e37d1..b78b83828b1 100644
--- a/Docs/manual.texi
+++ b/Docs/manual.texi
@@ -50815,6 +50815,10 @@ each individual 4.0.x release.
@appendixsubsec Changes in release 4.0.5
@itemize
@item
+Removed a condition that temp table with index on column that can be NULL has
+to be MyISAM. This was OK for 3.23, but not needed in 4.*. This resulted in
+slowdown in many queries since 4.0.2
+@item
Small code improvement in multi-table updates
@item
Fixed a newly introduced bug that caused @code{ORDER BY ... LIMIT #}