Small fixes (nothing nameworthy)

mysql-test/r/errors.result:
  Rename: mysql-test/r/err000001.result -> mysql-test/r/errors.result
include/my_global.h:
  typedef for future functions that needs string length as an argument
innobase/os/os0file.c:
  Added operation to error messages
mysql-test/t/errors.test:
  Cleaned up file to new error number standard
mysys/thr_alarm.c:
  Made end_thr_alarm() work also with internal alarm thread.
  (Not critical for MySQL)
sql/mysqld.cc:
  Added sigemptyset() (bug found by valgrind)
  Removed some wrong usage of thd when writing variable values

1 files changed, 32 insertions, 0 deletions

diff --git a/mysql-test/t/errors.test b/mysql-test/t/errors.test
new file mode 100644
index 00000000000..afb0cce9005
--- /dev/null
+++ b/mysql-test/t/errors.test
@@ -0,0 +1,32 @@
+#
+# Test some error conditions
+#
+
+drop table if exists t1;
+--error 1146
+insert into t1 values(1);
+--error 1146
+delete from t1;
+--error 1146
+update t1 set a=1;
+
+#
+
+create table t1 (a int);
+--error 1054
+select count(test.t1.b) from t1;
+--error 1109
+select count(not_existing_database.t1) from t1;
+--error 1109
+ select count(not_existing_database.t1.a) from t1;
+--error 1044,1146
+select count(not_existing_database.t1.a) from not_existing_database.t1;
+--error 1054
+select 1 from t1 order by 2;
+--error 1054
+select 1 from t1 group by 2;
+--error 1054
+select 1 from t1 order by t1.b;
+--error 1054
+select count(*),b from t1;
+drop table t1;