Fixed memory reference errors found by valgrind

sql/ha_federated.cc:
  Change mode to -rw-rw-r--
myisam/mi_create.c:
  Ensure that all referenced memory is reset
mysql-test/r/type_timestamp.result:
  More tests
mysql-test/t/func_compress.test:
  Added comment
mysql-test/t/type_timestamp.test:
  More tests
sql/field.h:
  Count number of varchars in table
sql/item_cmpfunc.cc:
  Safety fix (to avoid warning from valgrind)
sql/opt_range.cc:
  Simple optimzation
sql/sql_acl.cc:
  Safety fix (to avoid warning from valgrind)
sql/sql_parse.cc:
  Safety fix for prepared statements
sql/sql_show.cc:
  Move variable declarations first in function
  Remove hidden variable (it)
  Remove accessing freed memory (table_list->table_name)
sql/sql_update.cc:
  Compare records with varchars correctly
sql/table.cc:
  Safety fix when running with purify/valgrind
  Fix wrong memory reference in case of errors
sql/table.h:
  Added counting of varchar fields
strings/ctype-mb.c:
  Fill max_str properly

1 files changed, 2 insertions, 0 deletions

diff --git a/mysql-test/t/func_compress.test b/mysql-test/t/func_compress.test
index f46589e9e0e..9c32313e967 100644
--- a/mysql-test/t/func_compress.test
+++ b/mysql-test/t/func_compress.test
@@ -2,6 +2,8 @@
 #
 # Test for compress and uncompress functions:
 #
+# Note that this test gives error in the gzip library when running under
+# valgrind, but these warnings can be ignored
 
 select @test_compress_string:='string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ';
 select length(@test_compress_string);