rdblue commented on a change in pull request #25040: [SPARK-28238][SQL]
Implement DESCRIBE TABLE for Data Source V2 Tables.
URL: https://github.com/apache/spark/pull/25040#discussion_r300840454
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceResolution.scala
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@@ -85,6 +85,28 @@ case class DataSourceResolution(
.asTableCatalog
convertCTAS(catalog, identifier, create)
+ case DescribeColumnStatement(
+ AsTableIdentifier(tableName), colName, isExtended) =>
+ DescribeColumnCommand(tableName, colName, isExtended)
+
+ case DescribeColumnStatement(
+ CatalogObjectIdentifier(Some(catalog), ident), colName, isExtended) =>
+ throw new AnalysisException("Describing columns is not supported for v2
tables.")
Review comment:
Should this be supported eventually, or is it redundant if DESCRIBE TABLE is
available?
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