Vertx JDBC client queryWithParams - how to add a list?

Question

I have SQL query with condition currency in ? and I\'m using vertx JDBC client queryWithparams method, which receives query parameters in JsonArray.

Answer 1

There are two options.

If you want to support multiple databases, you'll have to expand your expression yourself:

"... currency IN (" + String.join(",", Collections.nCopies(currencies.size(), "?")) + ")"

If you support only PostreSQL, you can use ANY operator instead:

WHERE currency = ANY(?)