From 8a8ac002716d000431b4c8ff582fc1f56740aecc Mon Sep 17 00:00:00 2001
From: ulysses <youxiduo@weidian.com>
Date: Fri, 1 Nov 2019 08:35:00 +0900
Subject: [PATCH] [SPARK-29687][SQL] Fix JDBC metrics counter data type

### What changes were proposed in this pull request?

Fix JDBC metrics counter data type. Related pull request [26109](https://github.com/apache/spark/pull/26109).

### Why are the changes needed?

Avoid overflow.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Exists UT.

Closes #26346 from ulysses-you/SPARK-29687.

Authored-by: ulysses <youxiduo@weidian.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
---
 .../apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala
index 55ca4e3624..319cb277cc 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala
@@ -652,7 +652,7 @@ object JdbcUtils extends Logging {
       }
     }
     val supportsTransactions = finalIsolationLevel != Connection.TRANSACTION_NONE
-    var totalRowCount = 0
+    var totalRowCount = 0L
     try {
       if (supportsTransactions) {
         conn.setAutoCommit(false) // Everything in the same db transaction.