<symbol>TOAST_TUPLE_THRESHOLD</symbol> bytes (normally 2 kB).
The <acronym>TOAST</acronym> code will compress and/or move
field values out-of-line until the row value is shorter than
-<symbol>TOAST_TUPLE_TARGET</symbol> bytes (also normally 2 kB)
+<symbol>TOAST_TUPLE_TARGET</symbol> bytes (also normally 2 kB, adjustable)
or no more gains can be had. During an UPDATE
operation, values of unchanged fields are normally preserved as-is; so an
UPDATE of a row with out-of-line values incurs no <acronym>TOAST</acronym> costs if
with <link linkend="sql-altertable"><command>ALTER TABLE ... SET STORAGE</command></link>.
</para>
+<para>
+<symbol>TOAST_TUPLE_TARGET</symbol> can be adjusted for each table using
+<link linkend="sql-altertable"><command>ALTER TABLE ... SET (toast_tuple_target = N)</command></link>
+</para>
+
<para>
This scheme has a number of advantages compared to a more straightforward
approach such as allowing row values to span pages. Assuming that queries are