Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/15664#discussion_r93859518 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala --- @@ -112,7 +112,25 @@ object JdbcUtils extends Logging { */ def insertStatement(conn: Connection, table: String, rddSchema: StructType, dialect: JdbcDialect) : PreparedStatement = { - val columns = rddSchema.fields.map(x => dialect.quoteIdentifier(x.name)).mkString(",") + // Use database column names instead of RDD schema column names + val tableSchemaQuery = conn.prepareStatement(dialect.getSchemaQuery(table)) --- End diff -- Thank you for review, @gatorsmile . Yes. That looks great! We can use `getSchemaQuery` instead of `tableExist`.
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