sunxiaoguang commented on code in PR #49453:
URL: https://github.com/apache/spark/pull/49453#discussion_r1912879188
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sql/core/src/main/scala/org/apache/spark/sql/jdbc/MySQLDialect.scala:
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@@ -259,6 +272,8 @@ 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))
+ // We override getJDBCType so that DoubleType is mapped to DOUBLE instead.
+ case DoubleType => Option(JdbcType("DOUBLE", java.sql.Types.DOUBLE))
Review Comment:
I also added comment to this line, so we can understand why this change is
necessary.
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