Jooq - 纯SQL参数化数组/列表

Question

I would like to supply collection/arrays in the "IN" parameter but I got

When I used array:

org.jooq.exception.SQLDialectNotSupportedException: Cannot bind ARRAY types in dialect MYSQL    

When I used list:

org.jooq.exception.SQLDialectNotSupportedException: Type class java.util.Arrays$ArrayList is not supported in dialect DEFAULT

Here is my plain sql:

String sql = "SELECT SUM(foo.reply = 'Y') yes " +
            "FROM foo " +
            "LEFT OUTER JOIN bar " +
            "ON foo.id = bar.foo_id " +
            "WHERE " +
            "foo.id = ? " +
            "AND foo.some_id IN (?) "; //this is the part I would like to use array or list

Here's how I execute it

dslContext.fetch(sql, val(fooId), val(someIds))
                    .into(Summary.class);

Answer 1

You can't do that with single bind variables (except in PostgreSQL with arrays). But you can use nested plain SQL query parts in jOOQ as such:

String sql = "SELECT SUM(foo.reply = 'Y') yes " +
            "FROM foo " +
            "LEFT OUTER JOIN bar " +
            "ON foo.id = bar.foo_id " +
            "WHERE " +
            "foo.id = {0} " +
            "AND foo.some_id IN ({1}) "; // Use the {0}, {1} placeholders

And then

dslContext.fetch(sql, 
               val(fooId), 
               DSL.list(someIds.stream().map(DSL::val).collect(toList())))
          .into(Summary.class);

See also DSL.list(QueryPart...)