From 778ff607c8cba6b2a35e5e20264f3efa2a7e2cdb Mon Sep 17 00:00:00 2001
From: Roman Nozdrin <roman.nozdrin@mariadb.com>
Date: Thu, 21 May 2020 09:28:17 +0000
Subject: [PATCH] MCOL-641 This commit disables length estimation for DECIMALs.

---
 dbcon/joblist/groupconcat.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dbcon/joblist/groupconcat.cpp b/dbcon/joblist/groupconcat.cpp
index 242b630b3..01f0a6c6b 100644
--- a/dbcon/joblist/groupconcat.cpp
+++ b/dbcon/joblist/groupconcat.cpp
@@ -638,7 +638,7 @@ int64_t GroupConcator::lengthEstimate(const rowgroup::Row& row)
             case CalpontSystemCatalog::DECIMAL:
             case CalpontSystemCatalog::UDECIMAL:
             {
-                fieldLen += row.getPrecision(*i)/2;
+                fieldLen += 1;
 
                 break;
             }