[#7101] Add T DSLContext.fetchValue(Field<T>)

jOOQ/src/main/java/org/jooq/DSLContext.java

@@ -10654,6 +10654,16 @@ public interface DSLContext extends Scope , AutoCloseable  {
      */
     <T> T fetchValue(TableField<?, T> field) throws DataAccessException, TooManyRowsException, InvalidResultException;
 
+    /**
+     * Execute a {@link ResultQuery} in the context of this
+     * <code>DSLContext</code> and return a single value.
+     *
+     * @param field The field for which to fetch a single value.
+     * @return The value or <code>null</code>, if no record was found.
+     * @throws DataAccessException if something went wrong executing the query
+     */
+    <T> T fetchValue(Field<T> field) throws DataAccessException;
+
 
     /**
      * Execute a {@link ResultQuery} in the context of this

jOOQ/src/main/java/org/jooq/impl/DefaultDSLContext.java

@@ -4145,6 +4145,11 @@ public class DefaultDSLContext extends AbstractScope implements DSLContext, Seri
         return fetchValue(select(field).from(field.getTable()));
     }
 
+    @Override
+    public <T> T fetchValue(Field<T> field) {
+        return fetchValue(select(field));
+    }
+
 
     @Override
     public <T, R extends Record1<T>> Optional<T> fetchOptionalValue(ResultQuery<R> query) {