Testing server 'MySQL 3.23.4 alpha' at 1999-09-27 15:13:41 Testing of ALTER TABLE Testing with 1000 columns and 1000 rows in 20 steps Insert data into the table Time for insert (1000) 1 wallclock secs ( 0.15 usr 0.07 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Time for alter_table_add (992): 925 wallclock secs ( 0.47 usr 0.10 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Time for create_index (8): 15 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Time for drop_index (8): 15 wallclock secs ( 0.01 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Time for alter_table_drop (496): 708 wallclock secs ( 0.21 usr 0.05 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Total time: 1664 wallclock secs ( 0.84 usr 0.22 sys + 0.00 cusr 0.00 csys = 0.00 CPU)