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Postgres FD Implementation
Commit 6b02ed66 authored by Robert Haas's avatar Robert Haas
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Clarify that NATURAL without matching columns is like CROSS JOIN. 

As suggested by Grzegorz Szpetkowski.
parent 2a890421
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doc/src/sgml/queries.sgml
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...@@ -266,7 +266,9 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r ...@@ -266,7 +266,9 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
<literal>USING</>: it forms a <literal>USING</> list <literal>USING</>: it forms a <literal>USING</> list
consisting of all column names that appear in both consisting of all column names that appear in both
input tables. As with <literal>USING</>, these columns appear input tables. As with <literal>USING</>, these columns appear
only once in the output table. only once in the output table. If there are no common
columns, <literal>NATURAL</literal> behaves like
<literal>CROSS JOIN</literal>.
</para> </para>
<para> <para>
......
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