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PostgreSQL documentation

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<title>Compatibility</title>

<para>

The draft SQL:2008 standard includes a <command>TRUNCATE</command> command,

but at this writing it is uncertain whether that will reach standardization

or be fully compatible with <productname>PostgreSQL</productname>'s

implementation.

The SQL:2008 standard includes a <command>TRUNCATE</command> command with the syntax

<literal>TRUNCATE TABLE <replaceable>tablename</replaceable></literal>.

The clauses <literal>CONTINUE IDENTITY</literal>/<literal>RESTART IDENTITY</literal>

also appear in that standard but have slightly different but related meanings.

Some of the concurrency behavior of this command is left implementation-defined

by the standard, so the above notes should be considered and compared with

other implementations if necessary.

</para>

</refsect1>

</refentry>