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Diffstat (limited to 'doc/src/sgml/datatype.sgml')
| -rw-r--r-- | doc/src/sgml/datatype.sgml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml index b7c51a4dee3..10ec158098d 100644 --- a/doc/src/sgml/datatype.sgml +++ b/doc/src/sgml/datatype.sgml @@ -672,6 +672,17 @@ NUMERIC from zero will cause an underflow error. </para> + <note> + <para> + The <xref linkend="guc-extra-float-digits"> setting controls the + number of extra significant digits included when a floating point + value is converted to text for output. With the default value of + <literal>0</literal>, the output is the same on every platform + supported by PostgreSQL. Increasing it will produce output that + more accurately represents the stored value, but may be unportable. + </para> + </note> + <indexterm> <primary>not a number</primary> <secondary>double precision</secondary> |