zhangptang opened a new pull request #31925:
URL: https://github.com/apache/spark/pull/31925
when i want to add an column in carbondata table with spark2.3, but it occur
a error,here it's the detail of mistake:
```java
ALTER ADD COLUMNS does not support datasource table with type
org.apache.spark.sql.CarbonSource
at
org.apache.spark.sql.execution.command.AlterTableAddColumnsCommand.verifyAlterTableAddColumn(tables.scala:242)
at
org.apache.spark.sql.execution.command.AlterTableAddColumnsCommand.run(tables.scala:194)
at
org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
at
org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
at
org.apache.spark.sql.execution.command.ExecutedCommandExec.executeCollect(commands.scala:79)
at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:190)
at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:190)
at org.apache.spark.sql.Dataset$$anonfun$52.apply(Dataset.scala:3259)
at
org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
at org.apache.spark.sql.Dataset.withAction(Dataset.scala:3258)
at org.apache.spark.sql.Dataset.<init>(Dataset.scala:190)
at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:75)
at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:642)
```
so,i wish it can be supported in latest version.Thanks
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