diff --git a/mysql-test/columnstore/bugfixes/mcol_4607.result b/mysql-test/columnstore/bugfixes/mcol_4607.result
new file mode 100644
index 000000000..eb63abfdb
--- /dev/null
+++ b/mysql-test/columnstore/bugfixes/mcol_4607.result
@@ -0,0 +1,10 @@
+DROP DATABASE IF EXISTS mcol_4607;
+CREATE DATABASE mcol_4607;
+USE mcol_4607;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (a DECIMAL(30,1)) ENGINE=ColumnStore;
+INSERT INTO t1 VALUES (1);
+SELECT SEC_TO_TIME(a), SEC_TO_TIME(a)+0.0 FROM t1;
+SEC_TO_TIME(a)	SEC_TO_TIME(a)+0.0
+00:00:01.0	1.0
+DROP DATABASE mcol_4607;
diff --git a/mysql-test/columnstore/bugfixes/mcol_4607.test b/mysql-test/columnstore/bugfixes/mcol_4607.test
new file mode 100644
index 000000000..3e8a99db2
--- /dev/null
+++ b/mysql-test/columnstore/bugfixes/mcol_4607.test
@@ -0,0 +1,15 @@
+--source ../include/have_columnstore.inc
+--disable_warnings
+DROP DATABASE IF EXISTS mcol_4607;
+--enable_warnings
+CREATE DATABASE mcol_4607;
+USE mcol_4607;
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+CREATE TABLE t1 (a DECIMAL(30,1)) ENGINE=ColumnStore;
+INSERT INTO t1 VALUES (1);
+SELECT SEC_TO_TIME(a), SEC_TO_TIME(a)+0.0 FROM t1;
+
+DROP DATABASE mcol_4607;
diff --git a/utils/funcexp/func_sec_to_time.cpp b/utils/funcexp/func_sec_to_time.cpp
index 9a2fef4c4..c6ba83f2b 100644
--- a/utils/funcexp/func_sec_to_time.cpp
+++ b/utils/funcexp/func_sec_to_time.cpp
@@ -221,7 +221,7 @@ execplan::IDB_Decimal Func_sec_to_time::getDecimalVal(rowgroup::Row& row, Functi
     tmpVal = strtoll(str, &ep, 10);
   }
 
-  if (parm[0]->data()->resultType().isWideDecimalType())
+  if (op_ct.isWideDecimalType())
     d.s128Value = tmpVal;
   else
     d.value = tmpVal;