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authorTom Lane2005-05-03 19:18:31 +0000
committerTom Lane2005-05-03 19:18:31 +0000
commitcff25fa049f42c9091e7ba0a4e8f080d2519a1f8 (patch)
tree0824048e251fd0cf3cee63c2408a7951aea74d0a /doc/src
parent308f01c304dd5225b9eebc10a34a00d755f92de9 (diff)
Alter the signature for encoding conversion functions to declare the
output area as INTERNAL not CSTRING. This is to prevent people from calling the functions by hand. This is a permanent solution for the back branches but I hope it is just a stopgap for HEAD.
Diffstat (limited to 'doc/src')
-rw-r--r--doc/src/sgml/ref/create_conversion.sgml14
1 files changed, 8 insertions, 6 deletions
diff --git a/doc/src/sgml/ref/create_conversion.sgml b/doc/src/sgml/ref/create_conversion.sgml
index cea5a2fa9e1..0bb8cbf4015 100644
--- a/doc/src/sgml/ref/create_conversion.sgml
+++ b/doc/src/sgml/ref/create_conversion.sgml
@@ -1,4 +1,4 @@
-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/ref/create_conversion.sgml,v 1.13 2003/09/22 00:16:57 petere Exp $ -->
+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/ref/create_conversion.sgml,v 1.13.2.1 2005/05/03 19:18:31 tgl Exp $ -->
<refentry id="SQL-CREATECONVERSION">
<refmeta>
@@ -8,7 +8,7 @@
<refnamediv>
<refname>CREATE CONVERSION</refname>
- <refpurpose>define a new conversion</refpurpose>
+ <refpurpose>define a new encoding conversion</refpurpose>
</refnamediv>
<indexterm zone="sql-createconversion">
@@ -26,10 +26,12 @@ CREATE [DEFAULT] CONVERSION <replaceable>name</replaceable>
<title>Description</title>
<para>
- <command>CREATE CONVERSION</command> defines a new encoding
- conversion. Conversion names may be used in the <function>convert</function> function
+ <command>CREATE CONVERSION</command> defines a new conversion between
+ character set encodings. Conversion names may be used in the
+ <function>convert</function> function
to specify a particular encoding conversion. Also, conversions that
- are marked <literal>DEFAULT</> can be used for automatic encoding conversion between
+ are marked <literal>DEFAULT</> can be used for automatic encoding
+ conversion between
client and server. For this purpose, two conversions, from encoding A to
B <emphasis>and</emphasis> from encoding B to A, must be defined.
</para>
@@ -109,7 +111,7 @@ conv_proc(
integer, -- source encoding ID
integer, -- destination encoding ID
cstring, -- source string (null terminated C string)
- cstring, -- destination string (null terminated C string)
+ internal, -- destination (fill with a null terminated C string)
integer -- source string length
) RETURNS void;
</programlisting>