avantgardnerio commented on code in PR #33961:
URL: https://github.com/apache/arrow/pull/33961#discussion_r1092481407


##########
java/flight/flight-sql-jdbc-driver/src/main/java/org/apache/arrow/driver/jdbc/utils/ConvertUtils.java:
##########
@@ -37,6 +45,114 @@ public final class ConvertUtils {
   private ConvertUtils() {
   }
 
+  static boolean isSigned(ArrowType.ArrowTypeID type) {
+    switch (type) {
+      case Int:
+      case FloatingPoint:
+      case Decimal:
+      case Interval:
+      case Duration:
+        return true;
+    }
+    return false;
+  }
+
+  static int toJdbcType(ArrowType.ArrowTypeID type) {

Review Comment:
   I am uncertain where these methods should go.



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