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* MERGE table problems::        MERGE Table Problems
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The MERGE storage engine was introduced in MySQL 3.23.25. It
is also known as the MRG_MyISAM engine. The code is now reasonably
stable.

A MERGE table is a collection of identical MyISAM tables that
can be used as one.  ``Identical'' means that all tables have
identical column and index information.  You can't merge tables in which the
columns are packed differently, don't have exactly the same columns, or
have the indexes in different order.  However, any or all of the tables can be
compressed with myisampack.
See also : [myisampack, , myisampack].
