-2010: Assignment impossible, char value too long
Explanation:
In an <INSERT statement> with a <QUERY EXPRESSION> or in an <UPDATE statement>, the attempt was made to assign a character string to a column of data type CHAR. This character string was too long. The error message is returned for the first occurring value of excess length, not while analyzing the maximum column lengths.
User Action:
Use
SELECT ... WHERE LENGTH (<column name>) > <unsigned integer> to find out the rows which are too long. The length of the corresponding column can be increased by an <ALTER TABLE statement>.