HyukjinKwon commented on code in PR #36904:
URL: https://github.com/apache/spark/pull/36904#discussion_r904452603
##########
sql/core/src/main/scala/org/apache/spark/sql/catalog/Catalog.scala:
##########
@@ -589,4 +589,25 @@ abstract class Catalog {
* @since 2.0.0
*/
def refreshByPath(path: String): Unit
+
+ /**
+ * Returns the current default catalog in this session.
+ *
+ * @since 3.4.0
+ */
+ def currentCatalog(): String
Review Comment:
Would need to 1. have a default implementation for backward compatibility,
or 2. exclude this from binary compatibility check.
The real error is:
```
[error] spark-sql: Failed binary compatibility check against
org.apache.spark:spark-sql_2.12:3.2.0! Found 3 potential problems (filtered 602)
[error] * abstract method currentCatalog()java.lang.String in class
org.apache.spark.sql.catalog.Catalog is present only in current version
[error] filter with:
ProblemFilters.exclude[ReversedMissingMethodProblem]("org.apache.spark.sql.catalog.Catalog.currentCatalog")
[error] * abstract method setCurrentCatalog(java.lang.String)Unit in class
org.apache.spark.sql.catalog.Catalog is present only in current version
[error] filter with:
ProblemFilters.exclude[ReversedMissingMethodProblem]("org.apache.spark.sql.catalog.Catalog.setCurrentCatalog")
[error] * abstract method listCatalogs()org.apache.spark.sql.Dataset in
class org.apache.spark.sql.catalog.Catalog is present only in current version
[error] filter with:
ProblemFilters.exclude[ReversedMissingMethodProblem]("org.apache.spark.sql.catalog.Catalog.listCatalogs")
```
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