diff --git a/mysql-test/main/update.result b/mysql-test/main/update.result
index f5edf1c6be3..7b6426d2ec5 100644
--- a/mysql-test/main/update.result
+++ b/mysql-test/main/update.result
@@ -734,3 +734,32 @@ UPDATE t1,t2 SET t1.i1 = -39 WHERE t2.d1 <> t1.i1 AND t2.d1 = t1.d2;
 ERROR 22007: Incorrect datetime value: '19' for column `test`.`t1`.`i1` at row 1
 DROP TABLE t1,t2;
 # End of MariaDB 10.2 tests
+#
+# MDEV-20773: UPDATE with LIKE predicate over non-indexed column
+#             of VARCHAR type
+#
+create table t1 (a1 varchar(30), a2 varchar(30) collate utf8_bin);
+insert into t1 values
+('aa','zzz'), ('b','xxaa'), ('ccc','yyy'), ('ddd','xxb');
+analyze table t1 persistent for all;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+explain extended
+update t1 set a1 = 'u'
+  where a2 like 'xx%' and exists(select 1 from t1 where t1.a1 < 'c');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	49.22	Using where
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	4	50.00	Using where
+Warnings:
+Note	1003	/* select#1 */ update `test`.`t1` set `test`.`t1`.`a1` = 'u' where `test`.`t1`.`a2` like 'xx%'
+update t1 set a1 = 'u'
+  where a2 like 'xx%' and exists(select 1 from t1 where t1.a1 < 'c');
+select * from t1;
+a1	a2
+aa	zzz
+u	xxaa
+ccc	yyy
+u	xxb
+drop table t1;
+# End of MariaDB 10.4 tests
diff --git a/mysql-test/main/update.test b/mysql-test/main/update.test
index 8a6949447ee..147d69d50c9 100644
--- a/mysql-test/main/update.test
+++ b/mysql-test/main/update.test
@@ -676,3 +676,26 @@ UPDATE t1,t2 SET t1.i1 = -39 WHERE t2.d1 <> t1.i1 AND t2.d1 = t1.d2;
 DROP TABLE t1,t2;
 
 --echo # End of MariaDB 10.2 tests
+
+--echo #
+--echo # MDEV-20773: UPDATE with LIKE predicate over non-indexed column
+--echo #             of VARCHAR type
+--echo #
+
+create table t1 (a1 varchar(30), a2 varchar(30) collate utf8_bin);
+insert into t1 values
+  ('aa','zzz'), ('b','xxaa'), ('ccc','yyy'), ('ddd','xxb');
+analyze table t1 persistent for all;
+
+explain extended
+update t1 set a1 = 'u'
+  where a2 like 'xx%' and exists(select 1 from t1 where t1.a1 < 'c');
+
+update t1 set a1 = 'u'
+  where a2 like 'xx%' and exists(select 1 from t1 where t1.a1 < 'c');
+
+select * from t1;
+
+drop table t1;
+
+--echo # End of MariaDB 10.4 tests
diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index c34420181a2..69a95f8da44 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -3518,7 +3518,10 @@ bool calculate_cond_selectivity_for_table(THD *thd, TABLE *table, Item **cond)
         }          
         else
         {
+          enum_check_fields save_count_cuted_fields= thd->count_cuted_fields;
+          thd->count_cuted_fields= CHECK_FIELD_IGNORE;
           rows= records_in_column_ranges(&param, idx, key);
+          thd->count_cuted_fields= save_count_cuted_fields;
           if (rows != DBL_MAX)
           {
             key->field->cond_selectivity= rows/table_records;