No error is produced if try to insert a number into a string atttibute

[barryhunter]

Describe the bug If try to insert a number into a column, defined as string attribute, Manticore silently accepts a number, but doesn't actually insert it.

To Reproduce

RT>CREATE TABLE test4 (
    ->         `title` string attribute indexed,
    ->         `distance` string attribute indexed,
    ->         `hash` string);
Query OK, 0 rows affected (0.002 sec)

RT>INSERT INTO test4 (id,title,distance,hash) VALUES (7,'Minchinhampton Common','Unknown','17791407');
Query OK, 1 row affected (0.001 sec)

RT>INSERT INTO test4 (id,title,distance,hash) VALUES (8,'Minchinhampton Common','Unknown',17791407);
Query OK, 1 row affected (0.005 sec)

RT>select * from test4;
+------+-----------------------+----------+----------+
| id   | title                 | distance | hash     |
+------+-----------------------+----------+----------+
|    8 | Minchinhampton Common | Unknown  |          |
|    7 | Minchinhampton Common | Unknown  | 17791407 |
+------+-----------------------+----------+----------+

Expected behavior Ideally an error msg produced. At the moment the data is accepted, but 'lost'.

A message is produced if try to insert into a column, that is ALSO a indexed field

RT>INSERT INTO manticore:test4 (id,title,distance,hash) VALUES (9,'Minchinhampton Common',17791407,'Unknown');
ERROR 1064 (42000): row 1, column 3: string expected

(ie fields check that inserting a string, string attributes don't)

OR - in fact it could just accept the number, and treat as string (same way as can technically insert a string (in quotes) into a number column)

Describe the environment:

• Manticore Search version: Server version: 5.0.0 b4cb7da0@220518 release git branch HEAD (no branch)
• OS version (uname -a if on a Unix-like system): Manticore Helm Chart 5.0.0.2