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Add send and recv functions for xml type.

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This commit is contained in:
Peter Eisentraut
2006-12-28 14:28:36 +00:00
parent d9e1c97feb
commit ad1425ae43
5 changed files with 58 additions and 9 deletions
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48
src/backend/utils/adt/xml.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.6 2006/12/28 03:17:38 petere Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.7 2006/12/28 14:28:36 petere Exp $
*
*-------------------------------------------------------------------------
*/
@ -34,6 +34,7 @@
#endif /* USE_LIBXML */
#include "fmgr.h"
#include "libpq/pqformat.h"
#include "mb/pg_wchar.h"
#include "nodes/execnodes.h"
#include "utils/builtins.h"
@ -83,8 +84,7 @@ xml_in(PG_FUNCTION_ARGS)
/*
* Parse the data to check if it is well-formed XML data. Assume
* that ERROR occurred if parsing failed. Do we need DTD
* validation (if DTD exists)?
* that ERROR occurred if parsing failed.
*/
xml_parse(vardata, false, true);
@ -112,6 +112,48 @@ xml_out(PG_FUNCTION_ARGS)
}
Datum
xml_recv(PG_FUNCTION_ARGS)
{
#ifdef USE_LIBXML
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
xmltype *result;
char *str;
int nbytes;
str = pq_getmsgtext(buf, buf->len - buf->cursor, &nbytes);
result = (xmltype *) palloc(nbytes + VARHDRSZ);
VARATT_SIZEP(result) = nbytes + VARHDRSZ;
memcpy(VARDATA(result), str, nbytes);
pfree(str);
/*
* Parse the data to check if it is well-formed XML data. Assume
* that ERROR occurred if parsing failed.
*/
xml_parse(result, false, true);
PG_RETURN_XML_P(result);
#else
NO_XML_SUPPORT();
return 0;
#endif
}
Datum
xml_send(PG_FUNCTION_ARGS)
{
xmltype *x = PG_GETARG_XML_P(0);
StringInfoData buf;
pq_begintypsend(&buf);
pq_sendbytes(&buf, VARDATA(x), VARSIZE(x) - VARHDRSZ);
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
#ifdef USE_LIBXML
static void
appendStringInfoText(StringInfo str, const text *t)