WL#2110 (SIGNAL)

WL#2265 (RESIGNAL)

Manual merge of SIGNAL and RESIGNAL to mysql-trunk-signal,
plus required dependencies.

1 files changed, 197 insertions, 0 deletions

diff --git a/mysql-test/r/signal_demo2.result b/mysql-test/r/signal_demo2.result
new file mode 100644
index 00000000000..223030b0624
--- /dev/null
+++ b/mysql-test/r/signal_demo2.result
@@ -0,0 +1,197 @@
+drop database if exists demo;
+create database demo;
+use demo;
+create procedure proc_top_a(p1 integer)
+begin
+## DECLARE CONTINUE HANDLER for SQLEXCEPTION, NOT FOUND
+begin
+end;
+select "Starting ...";
+call proc_middle_a(p1);
+select "The end";
+end
+$$
+create procedure proc_middle_a(p1 integer)
+begin
+DECLARE l integer;
+# without RESIGNAL:
+# Should be: DECLARE EXIT HANDLER for SQLEXCEPTION, NOT FOUND
+DECLARE EXIT HANDLER for 1 /* not sure how to handle exceptions */
+begin
+select "Oops ... now what ?";
+end;
+select "In prod_middle()";
+create temporary table t1(a integer, b integer);
+select GET_LOCK("user_mutex", 10) into l;
+insert into t1 set a = p1, b = p1;
+call proc_bottom_a(p1);
+select RELEASE_LOCK("user_mutex") into l;
+drop temporary table t1;
+end
+$$
+create procedure proc_bottom_a(p1 integer)
+begin
+select "In proc_bottom()";
+if (p1 = 1) then
+begin
+select "Doing something that works ...";
+select * from t1;
+end;
+end if;
+if (p1 = 2) then
+begin
+select "Doing something that fail (simulate an error) ...";
+drop table no_such_table;
+end;
+end if;
+if (p1 = 3) then
+begin
+select "Doing something that *SHOULD* works ...";
+select * from t1;
+end;
+end if;
+end
+$$
+call proc_top_a(1);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+In proc_bottom()
+In proc_bottom()
+Doing something that works ...
+Doing something that works ...
+a	b
+1	1
+The end
+The end
+call proc_top_a(2);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+In proc_bottom()
+In proc_bottom()
+Doing something that fail (simulate an error) ...
+Doing something that fail (simulate an error) ...
+ERROR 42S02: Unknown table 'no_such_table'
+call proc_top_a(3);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+ERROR 42S01: Table 't1' already exists
+call proc_top_a(1);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+ERROR 42S01: Table 't1' already exists
+drop temporary table if exists t1;
+create procedure proc_top_b(p1 integer)
+begin
+select "Starting ...";
+call proc_middle_b(p1);
+select "The end";
+end
+$$
+create procedure proc_middle_b(p1 integer)
+begin
+DECLARE l integer;
+DECLARE EXIT HANDLER for SQLEXCEPTION, NOT FOUND
+begin
+begin
+DECLARE CONTINUE HANDLER for SQLEXCEPTION, NOT FOUND
+begin
+/* Ignore errors from the cleanup code */
+end;
+select "Doing cleanup !";
+select RELEASE_LOCK("user_mutex") into l;
+drop temporary table t1;
+end;
+RESIGNAL;
+end;
+select "In prod_middle()";
+create temporary table t1(a integer, b integer);
+select GET_LOCK("user_mutex", 10) into l;
+insert into t1 set a = p1, b = p1;
+call proc_bottom_b(p1);
+select RELEASE_LOCK("user_mutex") into l;
+drop temporary table t1;
+end
+$$
+create procedure proc_bottom_b(p1 integer)
+begin
+select "In proc_bottom()";
+if (p1 = 1) then
+begin
+select "Doing something that works ...";
+select * from t1;
+end;
+end if;
+if (p1 = 2) then
+begin
+select "Doing something that fail (simulate an error) ...";
+drop table no_such_table;
+end;
+end if;
+if (p1 = 3) then
+begin
+select "Doing something that *SHOULD* works ...";
+select * from t1;
+end;
+end if;
+end
+$$
+call proc_top_b(1);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+In proc_bottom()
+In proc_bottom()
+Doing something that works ...
+Doing something that works ...
+a	b
+1	1
+The end
+The end
+call proc_top_b(2);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+In proc_bottom()
+In proc_bottom()
+Doing something that fail (simulate an error) ...
+Doing something that fail (simulate an error) ...
+Doing cleanup !
+Doing cleanup !
+ERROR 42S02: Unknown table 'no_such_table'
+call proc_top_b(3);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+In proc_bottom()
+In proc_bottom()
+Doing something that *SHOULD* works ...
+Doing something that *SHOULD* works ...
+a	b
+3	3
+The end
+The end
+call proc_top_b(1);
+Starting ...
+Starting ...
+In prod_middle()
+In prod_middle()
+In proc_bottom()
+In proc_bottom()
+Doing something that works ...
+Doing something that works ...
+a	b
+1	1
+The end
+The end
+drop database demo;