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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/05/27 05:05:11 UTC
[GitHub] [spark] jzhuge commented on a change in pull request #24689:
[SPARK-26946][SQL][FOLLOWUP] Handle lookupCatalog function not defined
jzhuge commented on a change in pull request #24689: [SPARK-26946][SQL][FOLLOWUP] Handle lookupCatalog function not defined
URL: https://github.com/apache/spark/pull/24689#discussion_r287647526
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File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalog/v2/LookupCatalog.scala
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@@ -26,27 +28,31 @@ import org.apache.spark.sql.catalyst.TableIdentifier
@Experimental
trait LookupCatalog {
- def lookupCatalog: Option[(String) => CatalogPlugin] = None
+ def lookupCatalog: Option[String => CatalogPlugin] = None
type CatalogObjectIdentifier = (Option[CatalogPlugin], Identifier)
/**
* Extract catalog plugin and identifier from a multi-part identifier.
*/
object CatalogObjectIdentifier {
- def unapply(parts: Seq[String]): Option[CatalogObjectIdentifier] = lookupCatalog.map { lookup =>
- parts match {
- case Seq(name) =>
- (None, Identifier.of(Array.empty, name))
- case Seq(catalogName, tail @ _*) =>
- try {
- val catalog = lookup(catalogName)
- (Some(catalog), Identifier.of(tail.init.toArray, tail.last))
- } catch {
- case _: CatalogNotFoundException =>
- (None, Identifier.of(parts.init.toArray, parts.last))
- }
- }
+ def unapply(parts: Seq[String]): Option[CatalogObjectIdentifier] = parts match {
Review comment:
Thanks @HyukjinKwon for the review.
Not quite sure what you meant. Method unapply has to return Option[T].
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