SQL: Add missing handling of IP field in JDBC

Fix #40358

Author: costin

x-pack/plugin/sql/jdbc/src/main/java/org/elasticsearch/xpack/sql/jdbc/TypeConverter.java

@@ -232,6 +232,8 @@ static Object convert(Object v, EsType columnType, String typeString) throws SQL
             case INTERVAL_HOUR_TO_SECOND:
             case INTERVAL_MINUTE_TO_SECOND:
                 return Duration.parse(v.toString());
+            case IP:
+                return v.toString();
             default:
                 throw new SQLException("Unexpected column type [" + typeString + "]");
 

x-pack/plugin/sql/qa/src/main/java/org/elasticsearch/xpack/sql/qa/jdbc/CsvSpecTestCase.java

@@ -50,6 +50,7 @@ public static List<Object[]> readScriptSpec() throws Exception {
         tests.addAll(readScriptSpec("/nested.csv-spec", parser));
         tests.addAll(readScriptSpec("/select.csv-spec", parser));
 
+        tests.addAll(readScriptSpec("/ip.csv-spec", parser));
         return tests;
     }