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MyISAM Table Formats
MyISAM supports 3 different table types. Two of them are chosen
automatically depending on the type of columns you are using. The third,
compressed tables, can only be created with the myisampack tool.
When you CREATE or ALTER a table that doesn't have
BLOB values, you can force the table format to DYNAMIC or
FIXED with the ROW_FORMAT=# table option. In the future
you will be able to compress/decompress tables by specifying
ROW_FORMAT=compressed | default to ALTER TABLE.
See section 13.2.5 CREATE TABLE Syntax.
| 14.1.2.1 Static (Fixed-length) Table Characteristics | ||
| 14.1.2.2 Dynamic Table Characteristics | ||
| 14.1.2.3 Compressed Table Characteristics |