@Evgeny Shvarov

Unfortunately, I have not yet found a documented and [Not Internal] way out of the box to see not only the text of the request, but also the values of its input parameters.

PS: take a look at the methods of the %SYSTEM.SQL.xDBC class.
Here is an example of the log for the query above (from DbVisualizer):

        SQL text (raw from client): 1 lines
        line 1: SELECT * FROM del . a WHERE id < :%qpar(1)
        Var Types: Parameter 1: Constant of type INTEGER
        INPUT params:
          %qpar(1) = 3

If auditing is enabled, you can see the query without the actual parameter values.
To copy the query to the SQL query tool, the query will also have to be cleaned of garbage.

For example, there is the following query

select * from del.a where id<3

From SMP:

Event: DynamicStatementQuery
Event Data: SELECT * FROM del . a WHERE id < ?

From DbVisualizer:

Event: XDBCStatementQuery
Event Data: SELECT * INTO :i%%col1, :i%%col2, :i%%col3 FROM del . a WHERE id < :%qpar(1)

Since you used the migration wizard, I assume that the problem is due to the primary key ID and the indexes on it.

Can you use the wizard to create a test table with only two fields, ID and row_status, and post the source code of the generated class here?
And more: how many records are there in the table?