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Add support for converting binary values (i.e. bytea) into xml values,

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with new GUC parameter "xmlbinary" that controls the output encoding, as
per SQL/XML standard.
This commit is contained in:
Peter Eisentraut
2007-01-19 16:58:46 +00:00
parent 5b4a08896b
commit 4b48ad4fb2
7 changed files with 117 additions and 4 deletions
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32
src/backend/utils/misc/guc.c
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@@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.368 2007/01/16 18:26:02 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.369 2007/01/19 16:58:46 petere Exp $
*
*--------------------------------------------------------------------
*/
@@ -61,6 +61,7 @@
#include "utils/pg_locale.h"
#include "utils/ps_status.h"
#include "utils/tzparser.h"
#include "utils/xml.h"
#ifndef PG_KRB_SRVTAB
#define PG_KRB_SRVTAB ""
@@ -142,6 +143,7 @@ static bool assign_transaction_read_only(bool newval, bool doit, GucSource sourc
static const char *assign_canonical_path(const char *newval, bool doit, GucSource source);
static const char *assign_backslash_quote(const char *newval, bool doit, GucSource source);
static const char *assign_timezone_abbreviations(const char *newval, bool doit, GucSource source);
static const char *assign_xmlbinary(const char *newval, bool doit, GucSource source);
static bool assign_tcp_keepalives_idle(int newval, bool doit, GucSource source);
static bool assign_tcp_keepalives_interval(int newval, bool doit, GucSource source);
@@ -229,6 +231,7 @@ static char *timezone_abbreviations_string;
static char *XactIsoLevel_string;
static char *data_directory;
static char *custom_variable_classes;
static char *xmlbinary_string;
static int max_function_args;
static int max_index_keys;
static int max_identifier_length;
@@ -2279,6 +2282,15 @@ static struct config_string ConfigureNamesString[] =
NULL, assign_canonical_path, NULL
},
{
{"xmlbinary", PGC_USERSET, CLIENT_CONN_STATEMENT,
gettext_noop("Sets how binary values are to be encoded in XML."),
gettext_noop("Valid values are BASE64 and HEX.")
},
&xmlbinary_string,
"base64", assign_xmlbinary, NULL
},
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, NULL, NULL, NULL
@@ -6475,6 +6487,24 @@ pg_timezone_abbrev_initialize(void)
}
}
static const char *
assign_xmlbinary(const char *newval, bool doit, GucSource source)
{
XmlBinaryType xb;
if (pg_strcasecmp(newval, "base64") == 0)
xb = XMLBINARY_BASE64;
else if (pg_strcasecmp(newval, "hex") == 0)
xb = XMLBINARY_HEX;
else
return NULL; /* reject */
if (doit)
xmlbinary = xb;
return newval;
}
static bool
assign_tcp_keepalives_idle(int newval, bool doit, GucSource source)
{