Clarify how MONEY trims off trailing thousands separator.

diff --git a/src/backend/utils/adt/cash.c b/src/backend/utils/adt/cash.c
index a7c6225f8ab691536a6aff662622e77818cf533e..df5d7bf862915b4baf96dbb9825deba6b74d841c 100644 (file)
--- a/src/backend/utils/adt/cash.c
+++ b/src/backend/utils/adt/cash.c
@@ -13,7 +13,7 @@
  * this version handles 64 bit numbers and so can hold values up to
  * $92,233,720,368,547,758.07.
  *
- * $PostgreSQL: pgsql/src/backend/utils/adt/cash.c,v 1.76 2007/11/24 15:28:02 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/cash.c,v 1.77 2007/11/24 16:18:48 momjian Exp $
  */
 
 #include "postgres.h"
@@ -337,9 +337,13 @@ cash_out(PG_FUNCTION_ARGS)
    strncpy((buf + count - strlen(csymbol) + 1), csymbol, strlen(csymbol));
    count -= strlen(csymbol) - 1;
 
-   /* XXX What does this do?  It seems to duplicate the last character. */
+   /*
+    *  If points == 0 and the number of digits % mon_group == 0,
+    *  the code above adds a trailing ssymbol on the far right,
+    *  so remove it.
+    */
    if (buf[LAST_DIGIT] == ssymbol)
-       buf[LAST_DIGIT] = buf[LAST_PAREN];
+       buf[LAST_DIGIT] = '\0';
 
    /* see if we need to signify negative amount */
    if (minus)