Fix for inserting/copying longer multibyte strings into bpchar data

types.

diff --git a/src/backend/utils/adt/varchar.c b/src/backend/utils/adt/varchar.c
index 9d6f9d087504293d1f6548c14789b5794873a3fe..3c58a25461965158b8fe296ceab558a45e554c68 100644 (file)
--- a/src/backend/utils/adt/varchar.c
+++ b/src/backend/utils/adt/varchar.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.70 2000/11/21 21:16:02 petere Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.71 2000/11/26 11:35:23 ishii Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -79,7 +79,17 @@ bpcharin(PG_FUNCTION_ARGS)
                atttypmod = len + VARHDRSZ;
        }
        else
+#ifdef MULTIBYTE
+       {
+               /*
+                * truncate multi-byte string preserving multi-byte
+                * boundary
+                */
+               len = pg_mbcliplen(s, atttypmod - VARHDRSZ, atttypmod - VARHDRSZ);
+       }
+#else
                len = atttypmod - VARHDRSZ;
+#endif
 
        result = (BpChar *) palloc(atttypmod);
        VARATT_SIZEP(result) = atttypmod;
@@ -96,7 +106,11 @@ bpcharin(PG_FUNCTION_ARGS)
 #endif
 
        /* blank pad the string if necessary */
+#ifdef MULTIBYTE
+       for (; i < atttypmod - VARHDRSZ; i++)
+#else
        for (; i < len; i++)
+#endif
                *r++ = ' ';
 
        PG_RETURN_BPCHAR_P(result);
@@ -329,7 +343,11 @@ varcharin(PG_FUNCTION_ARGS)
 
        len = strlen(s) + VARHDRSZ;
        if (atttypmod >= (int32) VARHDRSZ && len > atttypmod)
+#ifdef MULTIBYTE
+               len = pg_mbcliplen(s, len - VARHDRSZ, atttypmod - VARHDRSZ) + VARHDRSZ;
+#else
                len = atttypmod;                /* clip the string at max length */
+#endif
 
        result = (VarChar *) palloc(len);
        VARATT_SIZEP(result) = len;
@@ -383,7 +401,7 @@ varchar(PG_FUNCTION_ARGS)
 #ifdef MULTIBYTE
 
        /*
-        * truncate multi-byte string in a way not to break multi-byte
+        * truncate multi-byte string preserving multi-byte
         * boundary
         */
        len = pg_mbcliplen(VARDATA(s), slen - VARHDRSZ, slen - VARHDRSZ);