http://nexus.sonatype.org/oss-repository-hosting.html/vertx-parent/vertx-ext/vertx-ext-parent/vertx-mysql-postgresql-client-parent/vertx-mysql-postgresql-client: Sonatype helps open source projects to set up Maven repositories on https://oss.sonatype.org/ (Eclipse) 
package io.vertx.ext.asyncsql.impl;

import com.github.mauricio.async.db.Connection;
import com.github.mauricio.async.db.QueryResult;
import io.vertx.core.json.JsonArray;
import io.vertx.ext.asyncsql.impl.pool.AsyncConnectionPool;
import io.vertx.ext.sql.UpdateResult;
import scala.concurrent.ExecutionContext;


Author:Paulo Lopes.
/**
 * @author <a href="mailto:plopes@redhat.com">Paulo Lopes</a>.
 */
public class PostgreSQLConnectionImpl extends AsyncSQLConnectionImpl {
  public PostgreSQLConnectionImpl(Connection conn, AsyncConnectionPool pool, ExecutionContext ec) {
    super(conn, pool, ec);
  }

  @Override
  protected String getStartTransactionStatement() {
    // TODO: consider the tx isolation level
    return "BEGIN";
  }

    @Override
  protected UpdateResult queryResultToUpdateResult(QueryResult qr) {
    int affected = (int) qr.rowsAffected();
    return new UpdateResult(affected, new JsonArray());
  }
}