Support Int > 64 bit

apache · Jan 6, 2024 · 162a45f · 162a45f
1 parent 2b7624d
commit 162a45f
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/java/adapter/jdbc/src/main/java/org/apache/arrow/adapter/jdbc/JdbcToArrowUtils.java b/java/adapter/jdbc/src/main/java/org/apache/arrow/adapter/jdbc/JdbcToArrowUtils.java
@@ -155,6 +155,7 @@ public static Schema jdbcToArrowSchema(final ParameterMetaData parameterMetaData
    * @return a new {@link ArrowType}.
    */
   public static ArrowType getArrowTypeFromJdbcType(final JdbcFieldInfo fieldInfo, final Calendar calendar) {
+    int precision;
     switch (fieldInfo.getJdbcType()) {
       case Types.BOOLEAN:
       case Types.BIT:
@@ -166,10 +167,15 @@ public static ArrowType getArrowTypeFromJdbcType(final JdbcFieldInfo fieldInfo,
       case Types.INTEGER:
         return new ArrowType.Int(32, true);
       case Types.BIGINT:
-        return new ArrowType.Int(64, true);
+        precision = fieldInfo.getPrecision();
+        if (precision > 18) {
+          return new ArrowType.Decimal(precision, 0);
+        } else {
+          return new ArrowType.Int(64, true);
+        }
       case Types.NUMERIC:
       case Types.DECIMAL:
-        int precision = fieldInfo.getPrecision();
+        precision = fieldInfo.getPrecision();
         int scale = fieldInfo.getScale();
         if (precision > 38) {
           return new ArrowType.Decimal(precision, scale, 256);