These days have been struggling is really sad. The result of the things that have been engaged in the first two days have not we imagined. Everyone is more depressed.
It's hard to pass, but Performance did not improve too much.
However, after Junhui's reminder set the left table's Fetch size, Performance has increased more than double. Now our Performance has been 5 times that of DBII is only twice the DBII.
Haha. . . .
