Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/18142#discussion_r119014081 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala --- @@ -17,51 +17,74 @@ package org.apache.spark.sql.catalyst.analysis -import java.lang.reflect.Modifier +import java.util.Locale +import javax.annotation.concurrent.GuardedBy +import scala.collection.mutable import scala.language.existentials import scala.reflect.ClassTag import scala.util.{Failure, Success, Try} import org.apache.spark.sql.AnalysisException +import org.apache.spark.sql.catalyst.FunctionIdentifier import org.apache.spark.sql.catalyst.analysis.FunctionRegistry.FunctionBuilder import org.apache.spark.sql.catalyst.expressions._ import org.apache.spark.sql.catalyst.expressions.aggregate._ import org.apache.spark.sql.catalyst.expressions.xml._ -import org.apache.spark.sql.catalyst.util.StringKeyHashMap import org.apache.spark.sql.types._ /** * A catalog for looking up user defined functions, used by an [[Analyzer]]. * - * Note: The implementation should be thread-safe to allow concurrent access. + * Note: + * 1) The implementation should be thread-safe to allow concurrent access. + * 2) the database name is always case-sensitive here, callers are responsible to + * format the database name w.r.t. case-sensitive config. */ trait FunctionRegistry { - final def registerFunction(name: String, builder: FunctionBuilder): Unit = { - registerFunction(name, new ExpressionInfo(builder.getClass.getCanonicalName, name), builder) + final def registerFunction(name: FunctionIdentifier, builder: FunctionBuilder): Unit = { + val info = new ExpressionInfo( + builder.getClass.getCanonicalName, name.database.orNull, name.funcName) + registerFunction(name, info, builder) } - def registerFunction(name: String, info: ExpressionInfo, builder: FunctionBuilder): Unit + def registerFunction( + name: FunctionIdentifier, + info: ExpressionInfo, + builder: FunctionBuilder): Unit + + /* Create or replace a temporary function. */ + final def createOrReplaceTempFunction(name: String, builder: FunctionBuilder): Unit = { --- End diff -- Since we already expose `FunctionRegistry` to the stable class `UDFRegistration`, I added this extra API for a helper function. Ideally, this function should only exist in `SessionCatalog`.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org