Storagelimits

256TB

RAM

64TB

None

384EB

Transactions

No

No

Yes

No

Yes

Lockinggranularity

Table

Table

Row

Table

Row

MVCC

No

No

Yes

No

No

Geospatialdata type support

Yes

No

Yes

Yes

Yes

Geospatialindexing support

Yes

No

Yes[a]

No

No

B-treeindexes

Yes

Yes

Yes

No

No

T-treeindexes

No

No

No

No

Yes

Hashindexes

No

Yes

No[b]

No

Yes

Full-textsearch indexes

Yes

No

Yes[c]

No

No

Clusteredindexes

No

No

Yes

No

No

Datacaches

No

N/A

Yes

No

Yes

Indexcaches

Yes

N/A

Yes

No

Yes

Compresseddata

Yes[d]

No

Yes[e]

Yes

No

Encrypteddata[f]

Yes

Yes

Yes

Yes

Yes

Clusterdatabase support

No

No

No

No

Yes

Replicationsupport[g]

Yes

Yes

Yes

Yes

Yes

Foreignkey support

No

No

Yes

No

No

Backup/ point-in-time recovery[h]

Yes

Yes

Yes

Yes

Yes

Querycache support

Yes

Yes

Yes

Yes

Yes

Updatestatistics for data dictionary

Yes

Yes

Yes

Yes

Yes

[a]InnoDB support for geospatial indexing is available in MySQL5.7.5 and higher.

[b]InnoDB utilizes hash indexes internally for its AdaptiveHash Index feature.

[c]InnoDB support for FULLTEXT indexes is available in MySQL5.6.4 and higher.

[d]Compressed MyISAM tables are supported only when using thecompressed row format. Tables using the compressed row formatwith MyISAM are read only.

[e]Compressed InnoDB tables require the InnoDB Barracuda fileformat.

[f]Implemented in the server (via encryption functions), ratherthan in the storage engine.

[g]Implemented in the server, rather than in the storageengine.

[h]Implemented in the server, rather than in the storageengine.