Update MySQL validation query to use lightweight ping

Closes gh-11981

Update MySQL validation query to use lightweight ping
Closes gh-11981
37ce1784 · Marcus Eisele · Stephane Nicoll · c4395afa · 37ce1784
Commit 37ce1784 authored Feb 09, 2018 by Marcus Eisele Committed by Stephane Nicoll Feb 10, 2018
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DatabaseDriver.java ...in/java/org/springframework/boot/jdbc/DatabaseDriver.java +1 -1

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--- a/spring-boot/src/main/java/org/springframework/boot/jdbc/DatabaseDriver.java
+++ b/spring-boot/src/main/java/org/springframework/boot/jdbc/DatabaseDriver.java
@@ -67,7 +67,7 @@ public enum DatabaseDriver {
 	 * MySQL.
 	 */
 	MYSQL("MySQL", "com.mysql.jdbc.Driver",
-			"com.mysql.jdbc.jdbc2.optional.MysqlXADataSource", "SELECT 1"),
+			"com.mysql.jdbc.jdbc2.optional.MysqlXADataSource", "/* ping */ SELECT 1"),

 	/**
 	 * Maria DB.