[MDEV-16244] sql_mode=ORACLE: Some keywords do not work in variable declarations Created: 2018-05-22  Updated: 2019-07-19  Resolved: 2018-05-23

Status: Closed
Project: MariaDB Server
Component/s: Parser
Affects Version/s: 10.3
Fix Version/s: 10.3.8

Type: Bug Priority: Major
Reporter: Alexander Barkov Assignee: Alexander Barkov
Resolution: Fixed Votes: 0
Labels: Compatibility

Issue Links:
Problem/Incident
causes MDEV-20101 Assertion failure on select @@global.... Closed
Relates
relates to MDEV-10485 "Unreserve" MariaDB reserved keywords... Open
relates to MDEV-16258 sql_mode=ORACLE: Keywords from keywor... Open
relates to MDEV-16259 sql_mode=ORACLE: Keywords from keywor... Open

 Description   

In Oracle, all these keywords can be used for SP variables (in declarations and as INTO targets):

  • DO
  • HANDLER
  • REPAIR
  • SHUTDOWN
  • TRUNCATE
  • CLOSE
  • COMMIT
  • OPEN
  • ROLLBACK
  • SAVEPOINT
  • CONTAINS
  • LANGUAGE
  • NO
  • CHARSET
  • FOLLOWS
  • PRECEDES

In MariaDB this script:

SET sql_mode=ORACLE;
DELIMITER /
 
DECLARE
  do INT;
BEGIN
  SELECT do INTO do FROM DUAL;
END;
/
 
DECLARE
  handler INT;
BEGIN
  SELECT handler INTO handler FROM DUAL;
END;
/
 
DECLARE
  repair INT;
BEGIN
  SELECT repair INTO repair FROM DUAL;
END;
/
 
DECLARE
  shutdown INT;
BEGIN
  SELECT shutdown INTO shutdown FROM DUAL;
END;
/
 
DECLARE
  truncate INT;
BEGIN
  SELECT truncate INTO truncate FROM DUAL;
END;
/
 
DECLARE
  close INT;
BEGIN
  SELECT close INTO close FROM DUAL;
END;
/
 
DECLARE
  commit INT;
BEGIN
  SELECT commit INTO commit FROM DUAL;
END;
/
 
DECLARE
  open INT;
BEGIN
  SELECT open INTO open FROM DUAL;
END;
/
 
DECLARE
  rollback INT;
BEGIN
  SELECT rollback INTO rollback FROM DUAL;
END;
/
 
DECLARE
  savepoint INT;
BEGIN
  SELECT savepoint INTO savepoint FROM DUAL;
END;
/
 
DECLARE
  contains INT;
BEGIN
  SELECT contains INTO contains FROM DUAL;
END;
/
 
DECLARE
  language INT;
BEGIN
  SELECT language INTO language FROM DUAL;
END;
/
 
DECLARE
  no INT;
BEGIN
  SELECT no INTO no FROM DUAL;
END;
/
 
DECLARE
  charset INT;
BEGIN
  SELECT charset INTO charset FROM DUAL;
END;
/
DECLARE
  follows INT;
BEGIN
  SELECT follows INTO follows FROM DUAL;
END;
/
 
DECLARE
  precedes INT;
BEGIN
  SELECT precedes INTO precedes FROM DUAL;
END;
/

returns an error:

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'do INT;
BEGIN
  SELECT do INTO do FROM DUAL;
END' at line 2

In Oracle the same script (without SET sql_mode and DELIMITER commands) works without errors.


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