From: Date: March 29 2006 4:31pm
Subject: bk commit into 5.0 tree (bar:1.2108) BUG#15098
List-Archive: http://lists.mysql.com/commits/4278
X-Bug: 15098
Message-Id: <200603291431.k2TEVNKK084157@bar.intranet.mysql.r18.ru>

Below is the list of changes that have just been committed into a local
5.0 repository of bar. When bar does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
For information on how to access the public repository
see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet
  1.2108 06/03/29 19:31:16 bar@stripped +2 -0
  Additional 5.0 fix for 
  Bug#15098: CAST(column double TO signed int), wrong result
  which was fixed originally in 4.1.

  sql/field.cc
    1.302 06/03/29 19:31:06 bar@stripped +21 -2
    Adding a "truncated value" warning.

  mysql-test/r/cast.result
    1.42 06/03/29 19:31:06 bar@stripped +3 -0
    Fixing test results

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	bar
# Host:	bar.intranet.mysql.r18.ru
# Root:	/usr/home/bar/mysql-5.0

--- 1.301/sql/field.cc	2006-03-28 17:07:19 +05:00
+++ 1.302/sql/field.cc	2006-03-29 19:31:06 +05:00
@@ -4232,6 +4232,7 @@
 longlong Field_double::val_int(void)
 {
   double j;
+  longlong res;
 #ifdef WORDS_BIGENDIAN
   if (table->s->db_low_byte_first)
   {
@@ -4242,10 +4243,28 @@
     doubleget(j,ptr);
   /* Check whether we fit into longlong range */
   if (j <= (double) LONGLONG_MIN)
-    return (longlong) LONGLONG_MIN;
+  {
+    res= (longlong) LONGLONG_MIN;
+    goto warn;
+  }
   if (j >= (double) (ulonglong) LONGLONG_MAX)
-    return (longlong) LONGLONG_MAX;
+  {
+    res= (longlong) LONGLONG_MAX;
+    goto warn;
+  }
   return (longlong) rint(j);
+
+warn:
+  {
+    char buf[DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE];
+    String tmp(buf, sizeof(buf), &my_charset_latin1), *str;
+    str= val_str(&tmp, 0);
+    push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                        ER_TRUNCATED_WRONG_VALUE,
+                        ER(ER_TRUNCATED_WRONG_VALUE), "INTEGER",
+                        str->c_ptr());
+  }
+  return res;
 }
 
 

--- 1.41/mysql-test/r/cast.result	2006-03-28 18:20:37 +05:00
+++ 1.42/mysql-test/r/cast.result	2006-03-29 19:31:06 +05:00
@@ -344,6 +344,9 @@
 double_val	cast_val
 -1e+30	-9223372036854775808
 1e+30	9223372036854775807
+Warnings:
+Warning	1292	Truncated incorrect INTEGER value: '-1e+30'
+Warning	1292	Truncated incorrect INTEGER value: '1e+30'
 DROP TABLE t1;
 select cast('1.2' as decimal(3,2));
 cast('1.2' as decimal(3,2))