From 078f717804acf940cb9fc4ffeaf81f0c8dc05fd6 Mon Sep 17 00:00:00 2001
From: "pem@mysql.comhem.se" <>
Date: Thu, 10 Jun 2004 17:07:53 +0200
Subject: [PATCH] Fixed BUG#3132: Stored function returns empty when used in
 union.

---
 mysql-test/r/sp.result | 7 +++++++
 mysql-test/t/sp.test   | 9 +++++++++
 sql/item_func.cc       | 2 +-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/mysql-test/r/sp.result b/mysql-test/r/sp.result
index 1e1558f91af..5cdffbdc52c 100644
--- a/mysql-test/r/sp.result
+++ b/mysql-test/r/sp.result
@@ -1353,6 +1353,13 @@ drop procedure bug2564_1|
 drop procedure bug2564_2|
 drop function bug2564_3|
 drop function bug2564_4|
+create function bug3132(s char(20)) returns char(50)
+return concat('Hello, ', s, '!')|
+select bug3132('Bob') union all select bug3132('Judy')|
+bug3132('Bob')
+Hello, Bob!
+Hello, Judy!
+drop function bug3132|
 drop table if exists fac|
 create table fac (n int unsigned not null primary key, f bigint unsigned)|
 create procedure ifac(n int unsigned)
diff --git a/mysql-test/t/sp.test b/mysql-test/t/sp.test
index 81b7b440c4d..2571a5b0674 100644
--- a/mysql-test/t/sp.test
+++ b/mysql-test/t/sp.test
@@ -1551,6 +1551,15 @@ drop procedure bug2564_2|
 drop function bug2564_3|
 drop function bug2564_4|
 
+#
+# BUG#3132
+#
+create function bug3132(s char(20)) returns char(50)
+  return concat('Hello, ', s, '!')|
+
+select bug3132('Bob') union all select bug3132('Judy')|
+drop function bug3132|
+
 
 #
 # Some "real" examples
diff --git a/sql/item_func.cc b/sql/item_func.cc
index c4cb8a7a2f0..ac7025a391a 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -3320,7 +3320,7 @@ Item_func_sp::fix_length_and_dec()
     switch (m_sp->result()) {
     case STRING_RESULT:
       maybe_null= 1;
-      max_length= 0;
+      max_length= MAX_BLOB_WIDTH;
       break;
     case REAL_RESULT:
       decimals= NOT_FIXED_DEC;