Testing server 'MySQL 3.23.39' at 2001-06-05 13:47:22 Testing of ALTER TABLE Testing with 1000 columns and 1000 rows in 20 steps Insert data into the table Time for insert (1000) 0 wallclock secs ( 0.05 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.05 CPU) Time for alter_table_add (992): 261 wallclock secs ( 0.13 usr 0.02 sys + 0.00 cusr 0.00 csys = 0.15 CPU) Time for create_index (8): 5 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Time for drop_index (8): 5 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU) Total time: 271 wallclock secs ( 0.18 usr 0.02 sys + 0.00 cusr 0.00 csys = 0.20 CPU)