DBIx::Class::Storage::DBI::MultiColumnIn - Storage component for RDBMS supporting multicolumn in clauses


DBIx-Class documentation  | view source Contained in the DBIx-Class distribution.

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NAME

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DBIx::Class::Storage::DBI::MultiColumnIn - Storage component for RDBMS supporting multicolumn in clauses

DESCRIPTION

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While ANSI SQL does not define a multicolumn in operator, many databases can in fact understand WHERE (cola, colb) IN ( SELECT subcol_a, subcol_b ... ) The storage class for any such RDBMS should inherit from this class, in order to dramatically speed up update/delete operations on joined multipk resultsets.

At this point the only overridden method is _multipk_update_delete()

AUTHORS

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See CONTRIBUTORS in DBIx::Class

LICENSE

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You may distribute this code under the same terms as Perl itself.


DBIx-Class documentation  | view source Contained in the DBIx-Class distribution.