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v2ResolutionPlans.scala
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v2ResolutionPlans.scala
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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.
*/
package org.apache.spark.sql.catalyst.analysis
import org.apache.spark.sql.catalyst.FunctionIdentifier
import org.apache.spark.sql.catalyst.expressions.Attribute
import org.apache.spark.sql.catalyst.plans.logical.{LeafNode, LogicalPlan}
import org.apache.spark.sql.connector.catalog.{CatalogPlugin, Identifier, SupportsNamespaces, Table, TableCatalog}
/**
* Holds the name of a namespace that has yet to be looked up in a catalog. It will be resolved to
* [[ResolvedNamespace]] during analysis.
*/
case class UnresolvedNamespace(multipartIdentifier: Seq[String]) extends LeafNode {
override lazy val resolved: Boolean = false
override def output: Seq[Attribute] = Nil
}
/**
* Holds the name of a table that has yet to be looked up in a catalog. It will be resolved to
* [[ResolvedTable]] during analysis.
*/
case class UnresolvedTable(multipartIdentifier: Seq[String]) extends LeafNode {
override lazy val resolved: Boolean = false
override def output: Seq[Attribute] = Nil
}
/**
* Holds the name of a table or view that has yet to be looked up in a catalog. It will
* be resolved to [[ResolvedTable]] or [[ResolvedView]] during analysis.
*/
case class UnresolvedTableOrView(multipartIdentifier: Seq[String]) extends LeafNode {
override lazy val resolved: Boolean = false
override def output: Seq[Attribute] = Nil
}
case class UnresolvedFunc(multipartIdentifier: Seq[String]) extends LeafNode {
override lazy val resolved: Boolean = false
override def output: Seq[Attribute] = Nil
}
/**
* A plan containing resolved namespace.
*/
case class ResolvedNamespace(catalog: CatalogPlugin, namespace: Seq[String])
extends LeafNode {
override def output: Seq[Attribute] = Nil
}
/**
* A plan containing resolved table.
*/
case class ResolvedTable(catalog: TableCatalog, identifier: Identifier, table: Table)
extends LeafNode {
override def output: Seq[Attribute] = Nil
}
/**
* A plan containing resolved (temp) views.
*/
// TODO: create a generic representation for temp view, v1 view and v2 view, after we add view
// support to v2 catalog. For now we only need the identifier to fallback to v1 command.
case class ResolvedView(identifier: Identifier) extends LeafNode {
override def output: Seq[Attribute] = Nil
}
case class ResolvedFunc(catalog: CatalogPlugin, functionIdentifier: FunctionIdentifier)
extends LeafNode {
override def output: Seq[Attribute] = Nil
}