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-rw-r--r--doc/src/sgml/runtime.sgml26
1 files changed, 25 insertions, 1 deletions
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index 25a39862042..c5718040fcb 100644
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.148 2002/11/05 23:16:56 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/runtime.sgml,v 1.149 2002/11/08 17:37:52 tgl Exp $
-->
<Chapter Id="runtime">
@@ -1449,6 +1449,30 @@ dynamic_library_path = '/usr/local/lib/postgresql:/home/my_project/lib:$libdir'
</varlistentry>
<varlistentry>
+ <indexterm>
+ <primary>significant digits</primary>
+ </indexterm>
+ <indexterm>
+ <primary>display</primary>
+ <secondary>of float numbers</secondary>
+ </indexterm>
+
+ <term><varname>EXTRA_FLOAT_DIGITS</varname> (<type>integer</type>)</term>
+ <listitem>
+ <para>
+ This parameter adjusts the number of digits displayed for
+ floating-point values, including <type>float4</>, <type>float8</>,
+ and geometric datatypes. The parameter value is added to the
+ standard number of digits (<literal>FLT_DIG</> or <literal>DBL_DIG</>
+ as appropriate). The value can be set as high as 2, to include
+ partially-significant digits; this is especially useful for dumping
+ float data that needs to be restored exactly. Or it can be set
+ negative to suppress unwanted digits.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><varname>KRB_SERVER_KEYFILE</varname> (<type>string</type>)</term>
<listitem>
<para>