MDEV-308 lp:1008516 - Failing assertion: templ->mysql_col_len == len

remove the offending assert.
take the test case from mysql Bug#58015

mysql-test/include/icp_tests.inc

@@ -874,3 +874,21 @@ show status like "Handler_icp%";
 
 DROP TABLE t1;
 
+#
+# MDEV-308 lp:1008516 - Failing assertion: templ->mysql_col_len == len
+#
+create table t1 (a int,b char(5),primary key (a), key (b(1)));
+insert into t1 values ('a','b');
+select 1 from t1 where a and b >= 'aa';
+drop table t1;
+
+--echo #
+--echo # Bug#58015 "Assert in row_sel_field_store_in_mysql_format
+--echo #            when running innodb_mrr_icp test"
+--echo #
+
+create table t1 (a char(2) charset utf8,b double, primary key (a(1)),key (b));
+insert into t1 values ('',1);
+select 1 from t1 where b <= 1 and a <> '';
+drop table t1;
+

mysql-test/r/innodb_icp.result

@@ -835,5 +835,21 @@ Variable_name	Value
 Handler_icp_attempts 	2
 Handler_icp_match	1
 DROP TABLE t1;
+create table t1 (a int,b char(5),primary key (a), key (b(1)));
+insert into t1 values ('a','b');
+Warnings:
+Warning	1366	Incorrect integer value: 'a' for column 'a' at row 1
+select 1 from t1 where a and b >= 'aa';
+1
+drop table t1;
+#
+# Bug#58015 "Assert in row_sel_field_store_in_mysql_format
+#            when running innodb_mrr_icp test"
+#
+create table t1 (a char(2) charset utf8,b double, primary key (a(1)),key (b));
+insert into t1 values ('',1);
+select 1 from t1 where b <= 1 and a <> '';
+1
+drop table t1;
 set optimizer_switch=@innodb_icp_tmp;
 set storage_engine= @save_storage_engine;

mysql-test/r/maria_icp.result

@@ -841,5 +841,21 @@ Variable_name	Value
 Handler_icp_attempts 	2
 Handler_icp_match	1
 DROP TABLE t1;
+create table t1 (a int,b char(5),primary key (a), key (b(1)));
+insert into t1 values ('a','b');
+Warnings:
+Warning	1366	Incorrect integer value: 'a' for column 'a' at row 1
+select 1 from t1 where a and b >= 'aa';
+1
+drop table t1;
+#
+# Bug#58015 "Assert in row_sel_field_store_in_mysql_format
+#            when running innodb_mrr_icp test"
+#
+create table t1 (a char(2) charset utf8,b double, primary key (a(1)),key (b));
+insert into t1 values ('',1);
+select 1 from t1 where b <= 1 and a <> '';
+1
+drop table t1;
 set storage_engine= @save_storage_engine;
 set optimizer_switch=@maria_icp_tmp;

mysql-test/r/myisam_icp.result

@@ -839,6 +839,22 @@ Variable_name	Value
 Handler_icp_attempts 	2
 Handler_icp_match	1
 DROP TABLE t1;
+create table t1 (a int,b char(5),primary key (a), key (b(1)));
+insert into t1 values ('a','b');
+Warnings:
+Warning	1366	Incorrect integer value: 'a' for column 'a' at row 1
+select 1 from t1 where a and b >= 'aa';
+1
+drop table t1;
+#
+# Bug#58015 "Assert in row_sel_field_store_in_mysql_format
+#            when running innodb_mrr_icp test"
+#
+create table t1 (a char(2) charset utf8,b double, primary key (a(1)),key (b));
+insert into t1 values ('',1);
+select 1 from t1 where b <= 1 and a <> '';
+1
+drop table t1;
 drop table if exists t0, t1, t1i, t1m;
 #
 # BUG#826935 Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' failed

storage/xtradb/row/row0sel.c

@@ -2674,7 +2674,6 @@ row_sel_field_store_in_mysql_format(
 	case DATA_DECIMAL:
 		/* Above are the valid column types for MySQL data. */
 #endif /* UNIV_DEBUG */
-		ut_ad(templ->mysql_col_len == len);
 		memcpy(dest, data, len);
 	}
 }