Merge bk-internal.mysql.com:/home/bk/mysql-5.0-runtime

into  mysql.com:/home/dlenev/mysql-5.0-bg17764


mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/sql_insert.cc:
  Auto merged

1 files changed, 34 insertions, 0 deletions

diff --git a/mysql-test/t/trigger.test b/mysql-test/t/trigger.test
index 05a52007eeb..c5925bbd9d5 100644
--- a/mysql-test/t/trigger.test
+++ b/mysql-test/t/trigger.test
@@ -7,6 +7,7 @@ drop table if exists t1, t2, t3, t4;
 drop view if exists v1;
 drop database if exists mysqltest;
 drop function if exists f1;
+drop function if exists f2;
 drop procedure if exists p1;
 --enable_warnings
 
@@ -1080,3 +1081,36 @@ create table t1 (i int);
 create trigger t1_bi before insert on t1 for each row return 0;
 insert into t1 values (1);
 drop table t1;
+
+# Test for bug #17764 "Trigger crashes MyISAM table"
+#
+# Table was reported as crashed when it was subject table of trigger invoked
+# by insert statement which was executed with enabled bulk insert mode (which
+# is actually set of optimizations enabled by handler::start_bulk_insert())
+# and this trigger also explicitly referenced it.
+# The same problem arose when table to which bulk insert was done was also
+# referenced in function called by insert statement.
+create table t1 (a varchar(64), b int);
+create table t2 like t1;
+create trigger t1_ai after insert on t1 for each row
+  set @a:= (select max(a) from t1);
+insert into t1 (a) values
+  ("Twas"),("brillig"),("and"),("the"),("slithy"),("toves"),
+  ("Did"),("gyre"),("and"),("gimble"),("in"),("the"),("wabe");
+create trigger t2_ai after insert on t2 for each row
+  set @a:= (select max(a) from t2);
+insert into t2 select * from t1;
+load data infile '../std_data_ln/words.dat' into table t1 (a);
+drop trigger t1_ai;
+drop trigger t2_ai;
+# Test that the problem for functions is fixed as well
+create function f1() returns int return (select max(b) from t1);
+insert into t1 values
+  ("All",f1()),("mimsy",f1()),("were",f1()),("the",f1()),("borogoves",f1()),
+  ("And",f1()),("the",f1()),("mome", f1()),("raths",f1()),("outgrabe",f1());
+create function f2() returns int return (select max(b) from t2);
+insert into t2 select a, f2() from t1;
+load data infile '../std_data_ln/words.dat' into table t1 (a) set b:= f1();
+drop table t1;
+drop function f1;
+drop function f2;