beliefer commented on code in PR #40359: URL: https://github.com/apache/spark/pull/40359#discussion_r1133011143
########## sql/core/src/main/scala/org/apache/spark/sql/jdbc/MySQLDialect.scala: ########## @@ -291,4 +291,26 @@ private case object MySQLDialect extends JdbcDialect with SQLConfHelper { throw QueryExecutionErrors.unsupportedDropNamespaceRestrictError() } } + + class MySQLSQLQueryBuilder(dialect: JdbcDialect, options: JDBCOptions) + extends JdbcSQLQueryBuilder(dialect, options) { + + override def build(): String = { + if (limit < 1 && offset > 0) { Review Comment: if limit = 0, Optimizer will convert it to empty relation. But it's OK to use `limit < 0` too. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org