Why Memory Engine is much larger than InnoDB engine store?
I have a table stored about 100,000 rows data in InnoDB engine. I just
copy the data to a memory engine table, but I find that the size of the
new one is much large than orignal table. Why?
| Rows | Engine | Size |
| 96702 | Memory|741MB|
|96952|InnoDB|28MB|
WHY?
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