org.jooq.exception.SQLDialectNotSupportedException: Type class java.net.Inet6Address is not supported in dialect DEFAULT

Armin Walland :

The static DSL function(s) for row() seem not to use the dialect used in the DSLContext.

I'm using postgres with jooq to query my database. I have a Binder for use with java objects of type InetAddress, which I am using successfully in other parts of my application. The dialect is correctly set to postgres when using the contextual DSL (DSLContext).

However, if I try to use static functions from the DSL class, the DEFAULT dialect is used and my Binder is not used.

Specifically, my problematic query in question looks like this:

final var existingLinkRecords = asSeq(create
    .selectFrom(l)
    .where(row(l.FROM_IP, l.TO_IP).in(links.map(link -> row(link.from().ip(), link.to().ip())).asJava()))
    .fetch());

The previous code leads to the following exception:

org.jooq.exception.SQLDialectNotSupportedException: Type class java.net.Inet6Address is not supported in dialect DEFAULT
    at org.jooq.impl.DefaultDataType.getDataType(DefaultDataType.java:884)
    at org.jooq.impl.DefaultDataType.getDataType(DefaultDataType.java:823)
    at org.jooq.impl.DSL.getDataType(DSL.java:21760)
    at org.jooq.impl.DSL.val(DSL.java:19522)
    at org.jooq.impl.Tools.field(Tools.java:1209)
    at org.jooq.impl.DSL.row(DSL.java:20152)
...

The root of the problem seems to be this function from DSL:

@Deprecated
@Support
public static <T> DataType<T> getDataType(Class<T> type) {
    return DefaultDataType.getDataType(SQLDialect.DEFAULT, type);
}

I could not find any way to construct RowN() objects other than using the DSL class.

Is there any way to solve this?

Lukas Eder :

The problem arises from your call to

row(link.from().ip(), link.to().ip())

Since DSL.row() is a static method, jOOQ 3.11 currently cannot "guess" what the appropriate data type binding for your custom types is, hence the exception.

As a workaround, there are various ways to attach a data type binding to your row expression. Since you have already attached it to your row(l.FROM_IP, l.TO_IP) columns, you can reuse those using DSL.val(Object, Field)

row(val(link.from().ip(), l.FROM_IP), val(link.to().ip(), l.TO_IP))

This should probably work out of the box in your case. I have created a feature request for this: https://github.com/jOOQ/jOOQ/issues/8517