Save and clear run context before executing a stored function or trigger and restore it afterwards.

This allows us to use statement replication with functions and triggers
The following things are fixed with this patch:
- NOW() and automatic timestamps takes the value from the main event for functions and triggers (which allows these to replicate with statement level logging)
- No side effects for triggers or functions with auto-increment values(), last_insert_id(), rand() or found_rows()
- Triggers can't return result sets

Fixes bugs:
#12480: NOW() is not constant in a trigger
#12481: Using NOW() in a stored function breaks statement based replication
#12482: Triggers has side effects with auto_increment values
#11587: trigger causes lost connection error

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/fork_big2.pl b/tests/fork_big2.pl
index a1c55ac4c11..567cfafa176 100644
--- a/tests/fork_big2.pl
+++ b/tests/fork_big2.pl
@@ -300,7 +300,7 @@ sub test_select
 
 #
 # Do big select count(distinct..) over the table
-# 
+#
 
 sub test_select_count
 {