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Commit8438a3f

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doc: change "cross product" to "Cartesian product"
Reported-by: Erik WienholdDiscussion:https://postgr.es/m/2053109544.160895.1684955437950@office.mailbox.orgAuthor: Erik WienholdBackpatch-through: master
1 parent9caf042 commit8438a3f

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‎doc/src/sgml/queries.sgml

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@@ -392,7 +392,7 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
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input tables. As with <literal>USING</literal>, these columns appear
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only once in the output table. If there are no common
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column names, <literal>NATURAL JOIN</literal> behaves like
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<literal>JOIN ... ON TRUE</literal>, producing a cross-product join.
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<literal>CROSS JOIN</literal>.
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</para>
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<note>
@@ -1362,7 +1362,7 @@ GROUPING SETS (
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<para>
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If multiple grouping items are specified in a single <literal>GROUP BY</literal>
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clause, then the final list of grouping sets is thecross product of the
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clause, then the final list of grouping sets is theCartesian product of the
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individual items. For example:
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<programlisting>
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GROUP BY a, CUBE (b, c), GROUPING SETS ((d), (e))

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