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Inserting 5 characters into char(10) does not produce 5 padding spaces

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if they are two-byte multibyte characters. Same thing can be happen
if octet_length(multibyte_chars) == n where n is char(n).
Long standing bug since 7.3 days. Per report and fix from Yoshiyuki Asaba.
This commit is contained in:
Tatsuo Ishii
2005-05-24 23:52:02 +00:00
parent e3d0bd8d48
commit 8f5702ebd5
1 changed files with 9 additions and 2 deletions
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11
src/backend/parser/parse_expr.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.129.2.1 2002/12/27 20:06:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.129.2.2 2005/05/24 23:52:02 ishii Exp $
*
*-------------------------------------------------------------------------
*/
@@ -17,6 +17,7 @@
#include "catalog/pg_operator.h"
#include "catalog/pg_proc.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "nodes/makefuncs.h"
#include "nodes/params.h"
@@ -979,7 +980,13 @@ exprTypmod(Node *expr)
{
case BPCHAROID:
if (!con->constisnull)
return VARSIZE(DatumGetPointer(con->constvalue));
{
int32 len = VARSIZE(DatumGetPointer(con->constvalue));
if (pg_database_encoding_max_length() > 1)
len = pg_mbstrlen_with_len(VARDATA(DatumGetPointer(con->constvalue)), len);
return len;
}
break;
default:
break;