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MDEV-10580 sql_mode=ORACLE: FOR loop statement

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Adding non-labeled FOR LOOP statement.
This commit is contained in:
Alexander Barkov
2016-08-24 07:39:04 +04:00
parent 71a0a12e61
commit c570636ba2
11 changed files with 502 additions and 4 deletions
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67
mysql-test/suite/compat/oracle/r/sp-code.result
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@ -560,3 +560,70 @@ Pos Instruction
8 preturn
9 hpop 1
DROP PROCEDURE p1;
# Testing FOR loop statement
CREATE FUNCTION f1 (a INT, b INT) RETURN INT
AS
total INT := 0;
BEGIN
FOR i IN 1 .. a
LOOP
total:= total + i;
IF i = b THEN
EXIT;
END IF;
END LOOP;
RETURN total;
END
/
SHOW FUNCTION CODE f1;
Pos Instruction
0 set total@2 0
1 set i@3 1
2 set [upper_bound]@4 a@0
3 jump_if_not 9(9) i@3 <= [upper_bound]@4
4 set total@2 total@2 + i@3
5 jump_if_not 7(7) i@3 = b@1
6 jump 9
7 set i@3 i@3 + 1
8 jump 3
9 freturn 3 total@2
SELECT f1(3, 100) FROM DUAL;
f1(3, 100)
6
SELECT f1(3, 2) FROM DUAL;
f1(3, 2)
3
DROP FUNCTION f1;
CREATE FUNCTION f1 (a INT, b INT) RETURN INT
AS
total INT := 0;
BEGIN
FOR i IN REVERSE a..1
LOOP
total:= total + i;
IF i = b THEN
EXIT;
END IF;
END LOOP;
RETURN total;
END
/
SHOW FUNCTION CODE f1;
Pos Instruction
0 set total@2 0
1 set i@3 a@0
2 set [upper_bound]@4 1
3 jump_if_not 9(9) i@3 >= [upper_bound]@4
4 set total@2 total@2 + i@3
5 jump_if_not 7(7) i@3 = b@1
6 jump 9
7 set i@3 i@3 + -1
8 jump 3
9 freturn 3 total@2
SELECT f1(3, 100) FROM DUAL;
f1(3, 100)
6
SELECT f1(3, 2) FROM DUAL;
f1(3, 2)
5
DROP FUNCTION f1;