aokolnychyi commented on code in PR #52876: URL: https://github.com/apache/spark/pull/52876#discussion_r2529502696
########## sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/V2TableReference.scala: ########## @@ -0,0 +1,139 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.spark.sql.catalyst.analysis + +import org.apache.spark.SparkException +import org.apache.spark.sql.catalyst.SQLConfHelper +import org.apache.spark.sql.catalyst.analysis.V2TableReference.Context +import org.apache.spark.sql.catalyst.analysis.V2TableReference.TableInfo +import org.apache.spark.sql.catalyst.analysis.V2TableReference.TemporaryViewContext +import org.apache.spark.sql.catalyst.expressions.AttributeReference +import org.apache.spark.sql.catalyst.plans.logical.LeafNode +import org.apache.spark.sql.catalyst.plans.logical.Statistics +import org.apache.spark.sql.catalyst.util.truncatedString +import org.apache.spark.sql.connector.catalog.CatalogV2Implicits.CatalogHelper +import org.apache.spark.sql.connector.catalog.CatalogV2Implicits.IdentifierHelper +import org.apache.spark.sql.connector.catalog.Column +import org.apache.spark.sql.connector.catalog.Identifier +import org.apache.spark.sql.connector.catalog.MetadataColumn +import org.apache.spark.sql.connector.catalog.Table +import org.apache.spark.sql.connector.catalog.TableCatalog +import org.apache.spark.sql.connector.catalog.V2TableUtil +import org.apache.spark.sql.errors.QueryCompilationErrors +import org.apache.spark.sql.execution.datasources.v2.DataSourceV2Relation +import org.apache.spark.sql.util.CaseInsensitiveStringMap +import org.apache.spark.util.ArrayImplicits._ + +/** + * A reference to a V2 table. + * + * References are placeholders for the latest table metadata and are replaced with actual table + * versions during analysis, allowing Spark to reload tables with up-to-date metadata. The newly + * loaded table metadata is validated against the original metadata depending on the context. + * For instance, temporary views with fully resolved logical plans don't allow schema changes + * in underlying tables. + */ +case class V2TableReference private( Review Comment: I thought everything in catalyst is considered internal, but let me update. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
