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# These same selects are used many times in innodb_isolation.test --echo ########## innodb_isolation_selects.inc ########## SELECT * FROM t1; SELECT COUNT(*) FROM t1; # Uses handler::records() and clustered index SELECT COUNT(*) FROM t3; # Uses handler::records() and clustered index SELECT COUNT(c1) FROM t1; # Uses handler::records() and clustered index SELECT COUNT(c2) FROM t1; # Uses secondary index k2 SELECT COUNT(c3) FROM t1; # Uses clustered index SELECT SUM(c1) FROM t1; # Uses secondary index SELECT SUM(c2) FROM t1; # Uses secondary index SELECT AVG(c1), MAX(c1), MIN(c2), AVG(c3), SUM(c4) FROM t1; # Uses clustered index SELECT AVG(c1), MAX(c1), MIN(c2), AVG(c3), SUM(c4) FROM t3; # Uses clustered index SELECT c1, c2 FROM t1 WHERE c1 > ((SELECT COUNT(*) FROM t1) / 2); SELECT c1, c2 FROM t1 WHERE c1 > ((SELECT COUNT(*) FROM t3) / 2); SELECT COUNT(c2) FROM t1 WHERE c1 > ((SELECT COUNT(*) FROM t1) / 2); SELECT COUNT(c2) FROM t1 WHERE c1 > ((SELECT COUNT(*) FROM t3) / 2); SELECT COUNT(*) FROM t1 WHERE c1 > (SELECT AVG(c1) FROM t1); SELECT COUNT(*) FROM t1 WHERE c1 > (SELECT AVG(c1) FROM t3); --echo ###############################################