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Alter the signature for encoding conversion functions to declare the

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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.
This commit is contained in:
Tom Lane 2005-05-03 19:18:31 +00:00
parent 308f01c304
commit cff25fa049
3 changed files with 12 additions and 10 deletions
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14
doc/src/sgml/ref/create_conversion.sgml
View File

@ -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>

4
src/backend/commands/conversioncmds.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/conversioncmds.c,v 1.11 2003/08/04 02:39:58 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/conversioncmds.c,v 1.11.4.1 2005/05/03 19:18:31 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -46,7 +46,7 @@ CreateConversionCommand(CreateConversionStmt *stmt)
const char *from_encoding_name = stmt->for_encoding_name;
const char *to_encoding_name = stmt->to_encoding_name;
List *func_name = stmt->func_name;
static Oid funcargs[] = {INT4OID, INT4OID, CSTRINGOID, CSTRINGOID, INT4OID};
static Oid funcargs[] = {INT4OID, INT4OID, CSTRINGOID, INTERNALOID, INT4OID};
/* Convert list of names to a name and namespace */
namespaceId = QualifiedNameGetCreationNamespace(stmt->conversion_name,

4
src/backend/utils/mb/conversion_procs/Makefile
View File

@ -4,7 +4,7 @@
# Makefile for utils/mb/conversion_procs
#
# IDENTIFICATION
# $Header: /cvsroot/pgsql/src/backend/utils/mb/conversion_procs/Makefile,v 1.9.2.1 2004/01/21 19:25:11 tgl Exp $
# $Header: /cvsroot/pgsql/src/backend/utils/mb/conversion_procs/Makefile,v 1.9.2.2 2005/05/03 19:18:31 tgl Exp $
#
#-------------------------------------------------------------------------
@ -157,7 +157,7 @@ ifeq ($(enable_shared), yes)
func=$$1; shift; \
obj=$$1; shift; \
echo "-- $$se --> $$de"; \
echo "CREATE OR REPLACE FUNCTION $$func (INTEGER, INTEGER, CSTRING, CSTRING, INTEGER) RETURNS VOID AS '$$"libdir"/$$obj', '$$func' LANGUAGE 'c' STRICT;"; \
echo "CREATE OR REPLACE FUNCTION $$func (INTEGER, INTEGER, CSTRING, INTERNAL, INTEGER) RETURNS VOID AS '$$"libdir"/$$obj', '$$func' LANGUAGE 'c' STRICT;"; \
echo "DROP CONVERSION pg_catalog.$$name;"; \
echo "CREATE DEFAULT CONVERSION pg_catalog.$$name FOR '$$se' TO '$$de' FROM $$func;"; \
done > $@