Fix for MyISAM records > 16M

Docs/manual.texi:
  ChangeLog
innobase/os/os0file.c:
  Removed compiler warnings
myisam/mi_check.c:
  Fix for records > 16M
myisam/mi_dynrec.c:
  Fix for records > 16M
myisam/myisamdef.h:
  Fix for records > 16M
sql/sql_select.cc:
  Cleanup
sql/sql_yacc.yy:
  F

1 files changed, 72 insertions, 0 deletions

diff --git a/tests/myisam-big-rows.tst b/tests/myisam-big-rows.tst
new file mode 100644
index 00000000000..56c06f4820f
--- /dev/null
+++ b/tests/myisam-big-rows.tst
@@ -0,0 +1,72 @@
+#
+# Test rows with length above > 16M
+# Note that for this to work, you should start mysqld with
+# -O max_allowed_packet=32M
+#
+
+drop table if exists t1;
+create table t1 (a tinyint not null auto_increment, b longblob not null, primary key (a)) checksum=1;
+
+insert into t1 (b) values(repeat(char(65),10));
+insert into t1 (b) values(repeat(char(66),10));
+insert into t1 (b) values(repeat(char(67),10));
+update t1 set b=repeat(char(68),16777216) where a=1;
+check table t1;
+update t1 set b=repeat(char(69),16777000) where a=2;
+update t1 set b=repeat(char(70),167) where a=3;
+update t1 set b=repeat(char(71),16778000) where a=1;
+update t1 set b=repeat(char(72),16778000) where a=3;
+select a,length(b) from t1;
+set @a=1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+update t1 set b=('A') where a=5;
+delete from t1 where a=7;
+set @a=@a+1;
+insert into t1 (b) values (repeat(char(73+@a),16777200+@a));
+update t1 set b=repeat(char(73+@a+1),17000000+@a) where a=last_insert_id();
+
+select a,mid(b,1,5),length(b) from t1;
+check table t1;
+repair table t1;
+check table t1;
+select a from table where b<>repeat(mid(b,1,1),length(b));
+delete from t1 where (a & 1);
+select a from table where b<>repeat(mid(b,1,1),length(b));
+check table t1;
+repair table t1;
+check table t1;
+drop table t1;