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Postgres documentation
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default match type if none is specified. MATCH FULL will not
allow one column of a multi-column foreign key to be NULL
unless all foreign key columns are NULL. The default MATCH type
- allows a single foreign key column to be NULL while other parts
+ allows a some foreign key columns to be NULL while other parts
of the foreign key are not NULL. MATCH PARTIAL is currently not
supported.
</para>
default match type if none is specified. MATCH FULL will not
allow one column of a multi-column foreign key to be NULL
unless all foreign key columns are NULL. The default MATCH type
- allows a single foreign key column to be NULL while other parts
+ allows a some foreign key columns to be NULL while other parts
of the foreign key are not NULL. MATCH PARTIAL is currently not
supported.
</para>