About fixed_string() truncation

[Amber1990Zhang]

As title.
I created a tag and insert a vertex :

(w@nebula) [nba]> CREATE TAG t5(p1 fixed_string(5) NOT NULL, p2 int, p3 int DEFAULT NULL);
Execution succeeded (time spent 16330/17552 us)

(w@nebula) [nba]> INSERT VERTEX t5(p1, p2) VALUES "004":("shalalalala", 4);
Execution succeeded (time spent 5978/6981 us)

(w@nebula) [nba]> FETCH PROP on t5 "004"
+----------+---------+-------+-------+
| VertexID | t5.p1   | t5.p2 | t5.p3 |
+----------+---------+-------+-------+
| "004"    | "shala" | 4     | NULL  |
+----------+---------+-------+-------+
Got 1 rows (time spent 2790/4418 us)

Actually I’m expecting a warning or an error is returned when I insert a vertex with the property strength greater than the maximum length.

Refer to MySQL, users can disable STRICT_TRANS_TABLES and STRICT_ALL_TABLES. This allows the automatic truncation of the inserted string.

Quote from MySQL Documantation.

Strict mode controls how MySQL handles invalid or missing values in data-change statements such as INSERT or UPDATE. A value can be invalid for several reasons. For example, it might have the wrong data type for the column, or it might be out of range. A value is missing when a new row to be inserted does not contain a value for a non-NULL column that has no explicit DEFAULT clause in its definition. (For a NULL column, NULL is inserted if the value is missing.)

[czpmango]

mysql test:

mysql> create table test_fix_str(a char(3));
Query OK, 0 rows affected (0.12 sec)
mysql> insert into test_fix_str values ("abcdefg");
ERROR 1406 (22001): Data too long for column 'a' at row 1