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MDEV-10580 sql_mode=ORACLE: FOR loop statement

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Adding labeled FOR LOOP
This commit is contained in:
Alexander Barkov
2016-08-24 08:32:05 +04:00
parent c570636ba2
commit 2ea63492f7
5 changed files with 174 additions and 0 deletions
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50
mysql-test/suite/compat/oracle/r/sp-code.result
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@ -627,3 +627,53 @@ SELECT f1(3, 2) FROM DUAL;
f1(3, 2)
5
DROP FUNCTION f1;
# Testing labeled FOR LOOP statement
CREATE FUNCTION f1 (a INT, limita INT, b INT, limitb INT) RETURN INT
AS
total INT := 0;
BEGIN
<<la>>
FOR ia IN 1 .. a
LOOP
total:= total + 1000;
<<lb>>
FOR ib IN 1 .. b
LOOP
total:= total + 1;
EXIT lb WHEN ib = limitb;
EXIT la WHEN ia = limita;
END LOOP lb;
END LOOP la;
RETURN total;
END;
/
SHOW FUNCTION CODE f1;
Pos Instruction
0 set total@4 0
1 set ia@5 1
2 set [upper_bound]@6 a@0
3 jump_if_not 17(17) (ia@5 <= [upper_bound]@6)
4 set total@4 (total@4 + 1000)
5 set ib@7 1
6 set [upper_bound]@8 b@2
7 jump_if_not 15(15) (ib@7 <= [upper_bound]@8)
8 set total@4 (total@4 + 1)
9 jump_if_not 11(0) (ib@7 = limitb@3)
10 jump 15
11 jump_if_not 13(0) (ia@5 = limita@1)
12 jump 17
13 set ib@7 (ib@7 + 1)
14 jump 7
15 set ia@5 (ia@5 + 1)
16 jump 3
17 freturn 3 total@4
SELECT f1(2, 1, 2, 2) FROM DUAL;
f1(2, 1, 2, 2)
1001
SELECT f1(2, 2, 2, 2) FROM DUAL;
f1(2, 2, 2, 2)
2003
SELECT f1(2, 3, 2, 3) FROM DUAL;
f1(2, 3, 2, 3)
2004
DROP FUNCTION f1;