DO NOTHING

DO UPDATE SET { <replaceable class="PARAMETER">column_name</replaceable> = { <replaceable class="PARAMETER">expression</replaceable> | DEFAULT } |

( <replaceable class="PARAMETER">column_name</replaceable> [, ...] ) = ( { <replaceable class="PARAMETER">expression</replaceable> | DEFAULT } [, ...] ) |

( <replaceable class="PARAMETER">column_name</replaceable> [, ...] ) =[ ROW ]( { <replaceable class="PARAMETER">expression</replaceable> | DEFAULT } [, ...] ) |

( <replaceable class="PARAMETER">column_name</replaceable> [, ...] ) = ( <replaceable class="PARAMETER">sub-SELECT</replaceable> )

} [, ...]

[ WHERE <replaceable class="PARAMETER">condition</replaceable> ]

A substitute name for <replaceable

class="PARAMETER">table_name</replaceable>. When an alias is

provided, it completely hides the actual name of the table.

This is particularly useful when <literal>ON CONFLICT DO

UPDATE</literal>targets a table named excluded, since that's

also the name of the special table representing rows proposed

This is particularly useful when <literal>ON CONFLICT DO UPDATE</>

targets a table named<varname>excluded</>, since that will otherwise

be taken as the name of the special table representing rows proposed

for insertion.

</para>

</listitem>