diff --git a/dbcon/mysql/install_calpont_mysql.sh b/dbcon/mysql/install_calpont_mysql.sh
index e8eb5b2b0..e04371549 100755
--- a/dbcon/mysql/install_calpont_mysql.sh
+++ b/dbcon/mysql/install_calpont_mysql.sh
@@ -84,6 +84,7 @@ CREATE FUNCTION idbpartition RETURNS STRING soname 'libcalmysql.so';
 CREATE FUNCTION idblocalpm RETURNS INTEGER soname 'libcalmysql.so';
 CREATE FUNCTION mcssystemready RETURNS INTEGER soname 'libcalmysql.so';
 CREATE FUNCTION mcssystemreadonly RETURNS INTEGER soname 'libcalmysql.so';
+CREATE AGGREGATE FUNCTION regr_avgx RETURNS REAL soname 'libcalmysql.dll';
 
 CREATE DATABASE IF NOT EXISTS infinidb_vtable;
 CREATE DATABASE IF NOT EXISTS infinidb_querystats;
diff --git a/utils/winport/win_setup_mysql_part4.sql b/utils/winport/win_setup_mysql_part4.sql
index 3b75fbe98..d884214ec 100644
--- a/utils/winport/win_setup_mysql_part4.sql
+++ b/utils/winport/win_setup_mysql_part4.sql
@@ -18,4 +18,5 @@ CREATE FUNCTION idbextentmin RETURNS STRING soname 'libcalmysql.dll';
 CREATE FUNCTION idbextentmax RETURNS STRING soname 'libcalmysql.dll';
 CREATE FUNCTION idbpartition RETURNS STRING soname 'libcalmysql.dll';
 CREATE FUNCTION idblocalpm RETURNS INTEGER soname 'libcalmysql.dll';
+CREATE AGGREGATE FUNCTION regr_avgx RETURNS REAL soname 'libcalmysql.dll';