jason jin created SPARK-32889:
---------------------------------

             Summary: orc table column name doesn't support special characters.
                 Key: SPARK-32889
                 URL: https://issues.apache.org/jira/browse/SPARK-32889
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.1
            Reporter: jason jin


when execute 

"CREATE TABLE tbl(`$` INT, b INT) using orc";

error occurs like below. but in it's ok in hive.

Column name "$" contains invalid character(s). Please use alias to rename 
it.;Column name "$" contains invalid character(s). Please use alias to rename 
it.;org.apache.spark.sql.AnalysisException: Column name "$" contains invalid 
character(s). Please use alias to rename it.; at 
org.apache.spark.sql.execution.datasources.orc.OrcFileFormat$.checkFieldName(OrcFileFormat.scala:51)
 at 
org.apache.spark.sql.execution.datasources.orc.OrcFileFormat$.$anonfun$checkFieldNames$1(OrcFileFormat.scala:59)
 at 
org.apache.spark.sql.execution.datasources.orc.OrcFileFormat$.$anonfun$checkFieldNames$1$adapted(OrcFileFormat.scala:59)
 at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36) 
at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33) 
at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:38) at 
org.apache.spark.sql.execution.datasources.orc.OrcFileFormat$.checkFieldNames(OrcFileFormat.scala:59)
 at 
org.apache.spark.sql.execution.command.DDLUtils$.$anonfun$checkDataColNames$1(ddl.scala:924)
 at 
org.apache.spark.sql.execution.command.DDLUtils$.$anonfun$checkDataColNames$1$adapted(ddl.scala:913)
 at scala.Option.foreach(Option.scala:407) at 
org.apache.spark.sql.execution.command.DDLUtils$.checkDataColNames(ddl.scala:913)
 at 
org.apache.spark.sql.execution.command.DDLUtils$.checkDataColNames(ddl.scala:908)
 at 
org.apache.spark.sql.execution.datasources.PreprocessTableCreation$$anonfun$apply$2.applyOrElse(rules.scala:231)
 at 
org.apache.spark.sql.execution.datasources.PreprocessTableCreation$$anonfun$apply$2.applyOrElse(rules.scala:80)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.$anonfun$resolveOperatorsDown$2(AnalysisHelper.scala:108)
 at 
org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:73)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.$anonfun$resolveOperatorsDown$1(AnalysisHelper.scala:108)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper$.allowInvokingTransformsInAnalyzer(AnalysisHelper.scala:207)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.resolveOperatorsDown(AnalysisHelper.scala:106)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.resolveOperatorsDown$(AnalysisHelper.scala:104)
 at 
org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.resolveOperatorsDown(LogicalPlan.scala:29)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.resolveOperators(AnalysisHelper.scala:73)
 at 
org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.resolveOperators$(AnalysisHelper.scala:72)
 at 



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