Github user yhuai commented on a diff in the pull request: https://github.com/apache/spark/pull/16233#discussion_r95421315 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala --- @@ -767,19 +857,19 @@ class Analyzer( } } - /** - * In many dialects of SQL it is valid to use ordinal positions in order/sort by and group by - * clauses. This rule is to convert ordinal positions to the corresponding expressions in the - * select list. This support is introduced in Spark 2.0. - * - * - When the sort references or group by expressions are not integer but foldable expressions, - * just ignore them. - * - When spark.sql.orderByOrdinal/spark.sql.groupByOrdinal is set to false, ignore the position - * numbers too. - * - * Before the release of Spark 2.0, the literals in order/sort by and group by clauses - * have no effect on the results. - */ + /** + * In many dialects of SQL it is valid to use ordinal positions in order/sort by and group by + * clauses. This rule is to convert ordinal positions to the corresponding expressions in the + * select list. This support is introduced in Spark 2.0. + * + * - When the sort references or group by expressions are not integer but foldable expressions, + * just ignore them. + * - When spark.sql.orderByOrdinal/spark.sql.groupByOrdinal is set to false, ignore the position + * numbers too. + * + * Before the release of Spark 2.0, the literals in order/sort by and group by clauses + * have no effect on the results. + */ --- End diff -- what's going on with these lines?
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