Fix BUG#12071: "Windows hang: 'Opening tables' or 'Waiting for

 table' lockup".
 Changes from the innodb-4.1-ss11 snapshot.
 Do not call os_file-create_tmpfile() at runtime. Instead, create
 a tempfile at startup and guard access to it with a mutex.
 Also, fix bugs:
 10511: "Wrong padding of UCS2 CHAR columns in ON UPDATE CASCADE";
 13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN
 KEYs". When FOREIGN_KEY_CHECKS=0 we still need to check that
 datatypes between foreign key references are compatible.
 Also, added test cases (also for bug 9802).


innobase/dict/dict0dict.c:
  Changes from the innodb-4.1-ss11 snapshot
innobase/dict/dict0load.c:
  Changes from the innodb-4.1-ss11 snapshot
innobase/include/dict0dict.h:
  Changes from the innodb-4.1-ss11 snapshot
innobase/include/dict0load.h:
  Changes from the innodb-4.1-ss11 snapshot
innobase/include/os0file.h:
  Changes from the innodb-4.1-ss11 snapshot
innobase/include/rem0cmp.h:
  Changes from the innodb-4.1-ss11 snapshot
innobase/include/srv0srv.h:
  Changes from the innodb-4.1-ss11 snapshot
innobase/rem/rem0cmp.c:
  Changes from the innodb-4.1-ss11 snapshot
innobase/row/row0ins.c:
  Changes from the innodb-4.1-ss11 snapshot
innobase/row/row0mysql.c:
  Changes from the innodb-4.1-ss11 snapshot
innobase/srv/srv0srv.c:
  Changes from the innodb-4.1-ss11 snapshot
innobase/srv/srv0start.c:
  Changes from the innodb-4.1-ss11 snapshot
libmysqld/ha_blackhole.cc:
  Changes from the innodb-4.1-ss11 snapshot
mysql-test/r/innodb.result:
  Changes from the innodb-4.1-ss11 snapshot
mysql-test/t/innodb.test:
  Changes from the innodb-4.1-ss11 snapshot
sql/ha_innodb.cc:
  Changes from the innodb-4.1-ss11 snapshot

2 files changed, 81 insertions, 0 deletions

diff --git a/mysql-test/r/innodb.result b/mysql-test/r/innodb.result
index ca78d23e6dc..b43d00bda1c 100644
--- a/mysql-test/r/innodb.result
+++ b/mysql-test/r/innodb.result
@@ -1722,3 +1722,35 @@ checksum table test_checksum;
 Table	Checksum
 test.test_checksum	2050879373
 drop table test_checksum;
+set foreign_key_checks=0;
+create table t2 (a int primary key, b int, foreign key (b) references t1(a)) engine = innodb;
+create table t1(a char(10) primary key, b varchar(20)) engine = innodb;
+ERROR HY000: Can't create table './test/t1.frm' (errno: 150)
+set foreign_key_checks=1;
+drop table t2;
+set foreign_key_checks=0;
+create table t1(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=latin1;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=utf8;
+ERROR HY000: Can't create table './test/t2.frm' (errno: 150)
+set foreign_key_checks=1;
+drop table t1;
+set foreign_key_checks=0;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb;
+create table t1(a varchar(10) primary key) engine = innodb;
+alter table t1 modify column a int;
+Got one of the listed errors
+set foreign_key_checks=1;
+drop table t2,t1;
+set foreign_key_checks=0;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=latin1;
+create table t1(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=latin1;
+alter table t1 convert to character set utf8;
+set foreign_key_checks=1;
+drop table t2,t1;
+set foreign_key_checks=0;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=latin1;
+create table t3(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=utf8;
+rename table t3 to t1;
+ERROR HY000: Error on rename of './test/t3' to './test/t1' (errno: 150)
+set foreign_key_checks=1;
+drop table t2,t3;
diff --git a/mysql-test/t/innodb.test b/mysql-test/t/innodb.test
index 3a693968769..03aa113c662 100644
--- a/mysql-test/t/innodb.test
+++ b/mysql-test/t/innodb.test
@@ -1280,4 +1280,53 @@ connection a;
 checksum table test_checksum;
 drop table test_checksum;
 
+# tests for bugs #9802 and #13778
+
+# test that FKs between invalid types are not accepted
+
+set foreign_key_checks=0;
+create table t2 (a int primary key, b int, foreign key (b) references t1(a)) engine = innodb;
+-- error 1005
+create table t1(a char(10) primary key, b varchar(20)) engine = innodb;
+set foreign_key_checks=1;
+drop table t2;
+
+# test that FKs between different charsets are not accepted in CREATE even
+# when f_k_c is 0
+
+set foreign_key_checks=0;
+create table t1(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=latin1;
+-- error 1005
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=utf8;
+set foreign_key_checks=1;
+drop table t1;
+
+# test that invalid datatype conversions with ALTER are not allowed
+
+set foreign_key_checks=0;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb;
+create table t1(a varchar(10) primary key) engine = innodb;
+-- error 1025,1025
+alter table t1 modify column a int;
+set foreign_key_checks=1;
+drop table t2,t1;
+
+# test that charset conversions with ALTER are allowed when f_k_c is 0
+
+set foreign_key_checks=0;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=latin1;
+create table t1(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=latin1;
+alter table t1 convert to character set utf8;
+set foreign_key_checks=1;
+drop table t2,t1;
+
+# test that RENAME does not allow invalid charsets when f_k_c is 0
+
+set foreign_key_checks=0;
+create table t2 (a varchar(10), foreign key (a) references t1(a)) engine = innodb DEFAULT CHARSET=latin1;
+create table t3(a varchar(10) primary key) engine = innodb DEFAULT CHARSET=utf8;
+-- error 1025
+rename table t3 to t1;
+set foreign_key_checks=1;
+drop table t2,t3;
 # End of 4.1 tests