1CREATE TABLE t1(a INT, b INT);
2CREATE INDEX IF NOT EXISTS i1 ON t1(a);
3SHOW CREATE TABLE t1;
4DROP INDEX IF EXISTS i1 ON t1;
5SHOW CREATE TABLE t1;
6DROP INDEX IF EXISTS i1 ON t1;
7SHOW CREATE TABLE t1;
8
9CREATE OR REPLACE INDEX i1 ON t1(a);
10SHOW CREATE TABLE t1;
11CREATE OR REPLACE INDEX i1 ON t1(a,b);
12SHOW CREATE TABLE t1;
13DROP TABLE t1;
14
15--error ER_WRONG_USAGE
16CREATE OR REPLACE INDEX IF NOT EXISTS i1 ON t1(b,a);
17