Bug#11228: DESC shows arbitrary column as "PRI"

  An UNIQUE KEY consisting of NOT NULL columns
  was displayed as PRIMARY KEY in "DESC t1".
  According to the code, that was intentional
  behaviour for some reasons unknown to me.
  This code was written before bitkeeper time,
  so I cannot check who and why made this.
  After discussing on dev-public, a decision
  was made to remove this code


mysql-test/r/key.result:
  Adding test case.
mysql-test/t/key.test:
  Adding test case.
sql/table.cc:
  Removing old wrong code

1 files changed, 11 insertions, 0 deletions

diff --git a/mysql-test/t/key.test b/mysql-test/t/key.test
index 85728582c75..796e36cb608 100644
--- a/mysql-test/t/key.test
+++ b/mysql-test/t/key.test
@@ -322,6 +322,17 @@ alter table t1 add key (c1,c1,c2);
 drop table t1;
 
 #
+# Bug#11228: DESC shows arbitrary column as "PRI"
+#
+create table t1 (
+ i1 INT NOT NULL,
+ i2 INT NOT NULL,
+ UNIQUE i1idx (i1),
+ UNIQUE i2idx (i2));
+desc t1;
+drop table t1;
+
+#
 # Bug#12565 - ERROR 1034 when running simple UPDATE or DELETE 
 #             on large MyISAM table
 #