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Prior to this patch, creating or even opening any innodb file in 10.2 would set a sparse flag on file. The file extension was done by setting end of file, without writing zeros. This technique is fine, however due to sparsedness, it created a hole at the end of the file, which lead to much higher fragmentation subsequently. The fix is only to use sparse flag for compressed tables, where holes are actually wanted, but not for normal tables. |
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| .. | ||
| archive | ||
| blackhole | ||
| cassandra | ||
| connect | ||
| csv | ||
| example | ||
| federated | ||
| federatedx | ||
| heap | ||
| innobase | ||
| maria | ||
| mroonga | ||
| myisam | ||
| myisammrg | ||
| oqgraph | ||
| perfschema | ||
| rocksdb | ||
| sequence | ||
| sphinx | ||
| spider | ||
| test_sql_discovery | ||
| tokudb | ||
| xtradb | ||