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Kirill Smelkov
mariadb
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98b4e1f5
Commit
98b4e1f5
authored
Jul 10, 2002
by
unknown
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Update (noted by Jocelyn Fournier).
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Docs/manual.texi
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98b4e1f5
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@@ -35556,11 +35556,11 @@ Indexing always happens over the entire column, partial indexing is not
supported. See @ref{Fulltext Search} for details of operation.
@item
The @code{FOREIGN KEY}, @code{CHECK}, and @code{REFERENCES} clauses don't
actually do anything. The syntax for them is provided only for compatibility,
to make it easier to port code from other SQL servers and to run applications
that create tables with references.
@xref{Differences from ANSI
}.
In MySQL Version 3.23.44 or later, @code{InnoDB} tables support checking of
foreign key constraints. @xref{InnoDB}.
For other table types, MySQL Server does parse the @code{FOREIGN KEY},
@code{CHECK}, and @code{REFERENCES} syntax in @code{CREATE TABLE} commands,
but without further action being taken. @xref{ANSI diff Foreign Keys
}.
@item
Each @code{NULL} column takes one bit extra, rounded up to the nearest byte.
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