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[SPARK-6898][SQL] completely support special chars in column names
Even if we wrap column names in backticks like `` `a#$b.c` ``, we still handle the "." inside column name specially. I think it's fragile to use a special char to split name parts, why not put name parts in `UnresolvedAttribute` directly? Author: Wenchen Fan <cloud0fan@outlook.com> This patch had conflicts when merged, resolved by Committer: Michael Armbrust <michael@databricks.com> Closes #5511 from cloud-fan/6898 and squashes the following commits: 48e3e57 [Wenchen Fan] more style fix 820dc45 [Wenchen Fan] do not ignore newName in UnresolvedAttribute d81ad43 [Wenchen Fan] fix style 11699d6 [Wenchen Fan] completely support special chars in column names
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/SqlParser.scala 2 additions, 2 deletions.../main/scala/org/apache/spark/sql/catalyst/SqlParser.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala 7 additions, 6 deletions...ala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala 5 additions, 1 deletion...rg/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala 12 additions, 2 deletions...a/org/apache/spark/sql/catalyst/analysis/unresolved.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala 13 additions, 14 deletions...apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala 0 additions, 2 deletions...rg/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
- sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala 2 additions, 2 deletionssql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala
- sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala 10 additions, 3 deletions...e/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
- sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala 1 addition, 1 deletion...ive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala
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