yaooqinn commented on code in PR #49453:
URL: https://github.com/apache/spark/pull/49453#discussion_r1919453242
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sql/core/src/main/scala/org/apache/spark/sql/jdbc/MySQLDialect.scala:
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@@ -259,6 +276,10 @@ private case class MySQLDialect() extends JdbcDialect with
SQLConfHelper with No
case StringType => Option(JdbcType("LONGTEXT", java.sql.Types.LONGVARCHAR))
case ByteType => Option(JdbcType("TINYINT", java.sql.Types.TINYINT))
case ShortType => Option(JdbcType("SMALLINT", java.sql.Types.SMALLINT))
+ // Because MySQL 5.7 only supports DOUBLE in the CAST function, and DOUBLE
is a
Review Comment:
Is MySQL 5.7 the only exception？
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