diff options
| -rw-r--r-- | doc/src/sgml/ref/ecpg-ref.sgml | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/doc/src/sgml/ref/ecpg-ref.sgml b/doc/src/sgml/ref/ecpg-ref.sgml index 2a783ea477b..eca78e14611 100644 --- a/doc/src/sgml/ref/ecpg-ref.sgml +++ b/doc/src/sgml/ref/ecpg-ref.sgml @@ -135,9 +135,35 @@ PostgreSQL documentation <term><option>-r <replaceable>option</replaceable></option></term> <listitem> <para> - Selects a run-time behavior. Currently, - <replaceable>option</replaceable> can only be - <literal>no_indicator</literal>. + Selects run-time behavior. <replaceable>Option</replaceable> can be + one of the following: + <variablelist> + <varlistentry> + <term><option>no_indicator</option></term> + <listitem> + <para> + Do not use indicators but instead use special values to represent + NULLs. Historically there have been databases using this approach. + </para> + </varlistentry> + <varlistentry> + <term><option>prepare</option></term> + <listitem> + <para> + Prepare all statements before using them. Libecpg will keep a cache of + prepared statments and reuse a statement if it gets executed again. If the + cache runs full, libecpg will free the least used statement. + </para> + </varlistentry> + <varlistentry> + <term><option>questionmarks</option></term> + <listitem> + <para> + Allow questionmark as placeholder for compatibility reasons. + This used to be the default long ago. + </para> + </varlistentry> + </variablelist> </para> </listitem> </varlistentry> |