[SPARK-28666] Support saveAsTable for V2 tables through Session Catalog #25402
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.spark.sql.sources.v2.internal | ||
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| import java.util | ||
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| import scala.collection.JavaConverters._ | ||
| import scala.collection.mutable | ||
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| import org.apache.spark.sql.catalog.v2.expressions.{LogicalExpressions, Transform} | ||
| import org.apache.spark.sql.catalyst.TableIdentifier | ||
| import org.apache.spark.sql.catalyst.catalog.CatalogTable | ||
| import org.apache.spark.sql.sources.v2.{Table, TableCapability} | ||
| import org.apache.spark.sql.types.StructType | ||
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| /** | ||
| * An implementation of catalog v2 `Table` to expose v1 table metadata. | ||
| */ | ||
| case class UnresolvedTable(v1Table: CatalogTable) extends Table { | ||
| implicit class IdentifierHelper(identifier: TableIdentifier) { | ||
| def quoted: String = { | ||
| identifier.database match { | ||
| case Some(db) => | ||
| Seq(db, identifier.table).map(quote).mkString(".") | ||
| case _ => | ||
| quote(identifier.table) | ||
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| } | ||
| } | ||
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| private def quote(part: String): String = { | ||
| if (part.contains(".") || part.contains("`")) { | ||
| s"`${part.replace("`", "``")}`" | ||
| } else { | ||
| part | ||
| } | ||
| } | ||
| } | ||
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| def catalogTable: CatalogTable = v1Table | ||
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| lazy val options: Map[String, String] = { | ||
| v1Table.storage.locationUri match { | ||
| case Some(uri) => | ||
| v1Table.storage.properties + ("path" -> uri.toString) | ||
| case _ => | ||
| v1Table.storage.properties | ||
| } | ||
| } | ||
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| override lazy val properties: util.Map[String, String] = v1Table.properties.asJava | ||
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| override lazy val schema: StructType = v1Table.schema | ||
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| override lazy val partitioning: Array[Transform] = { | ||
| val partitions = new mutable.ArrayBuffer[Transform]() | ||
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| v1Table.partitionColumnNames.foreach { col => | ||
| partitions += LogicalExpressions.identity(col) | ||
| } | ||
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| v1Table.bucketSpec.foreach { spec => | ||
| partitions += LogicalExpressions.bucket(spec.numBuckets, spec.bucketColumnNames: _*) | ||
| } | ||
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| partitions.toArray | ||
| } | ||
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| override def name: String = v1Table.identifier.quoted | ||
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| override def capabilities: util.Set[TableCapability] = new util.HashSet[TableCapability]() | ||
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| override def toString: String = s"UnresolvedTable($name)" | ||
| } |
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A +1 on this.