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36 changes: 0 additions & 36 deletions
36
src/main/scala/com/microsoft/hyperspace/index/covering/CoveringIndexFilter.scala
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33 changes: 33 additions & 0 deletions
33
src/main/scala/com/microsoft/hyperspace/index/rules/ExtractRelation.scala
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| /* | ||
| * Copyright (2021) The Hyperspace Project Authors. | ||
| * | ||
| * Licensed 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 com.microsoft.hyperspace.index.rules | ||
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| import org.apache.spark.sql.catalyst.plans.logical.LeafNode | ||
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| import com.microsoft.hyperspace.{ActiveSparkSession, Hyperspace} | ||
| import com.microsoft.hyperspace.index.sources.FileBasedRelation | ||
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| object ExtractRelation extends ActiveSparkSession { | ||
| def unapply(plan: LeafNode): Option[FileBasedRelation] = { | ||
| val provider = Hyperspace.getContext(spark).sourceProviderManager | ||
| if (provider.isSupportedRelation(plan)) { | ||
| Some(provider.getRelation(plan)) | ||
| } else { | ||
| None | ||
| } | ||
| } | ||
| } |
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49
src/main/scala/com/microsoft/hyperspace/index/rules/IndexTypeFilter.scala
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| /* | ||
| * Copyright (2021) The Hyperspace Project Authors. | ||
| * | ||
| * Licensed 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 com.microsoft.hyperspace.index.rules | ||
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| import scala.reflect.ClassTag | ||
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| import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan | ||
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| import com.microsoft.hyperspace.index.Index | ||
| import com.microsoft.hyperspace.index.rules.ApplyHyperspace.PlanToIndexesMap | ||
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| object IndexTypeFilter { | ||
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| /** | ||
| * Returns a [[QueryPlanIndexFilter]] that filters out indexes which are not T. | ||
| */ | ||
| def apply[T <: Index: ClassTag](): QueryPlanIndexFilter = | ||
| new QueryPlanIndexFilter { | ||
| override def apply( | ||
| plan: LogicalPlan, | ||
| candidateIndexes: PlanToIndexesMap): PlanToIndexesMap = { | ||
| candidateIndexes | ||
| .map { | ||
| case (plan, indexes) => | ||
| plan -> indexes.filter { | ||
| _.derivedDataset match { | ||
| case _: T => true | ||
| case _ => false | ||
| } | ||
| } | ||
| } | ||
| .filter { case (_, indexes) => indexes.nonEmpty } | ||
| } | ||
| } | ||
| } |
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55
src/main/scala/com/microsoft/hyperspace/index/rules/RuleUtils.scala
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| /* | ||
| * Copyright (2021) The Hyperspace Project Authors. | ||
| * | ||
| * Licensed 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 com.microsoft.hyperspace.index.rules | ||
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| import org.apache.spark.sql.SparkSession | ||
| import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan | ||
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| import com.microsoft.hyperspace.Hyperspace | ||
| import com.microsoft.hyperspace.index.IndexConstants | ||
| import com.microsoft.hyperspace.index.sources.FileBasedRelation | ||
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| object RuleUtils { | ||
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| /** | ||
| * Check if an index was applied the given relation or not. | ||
| * This can be determined by an identifier in [[FileBasedRelation]]'s options. | ||
| * | ||
| * @param relation FileBasedRelation to check if an index is already applied. | ||
| * @return true if an index is applied to the given relation. Otherwise false. | ||
| */ | ||
| def isIndexApplied(relation: FileBasedRelation): Boolean = { | ||
| relation.options.exists(_.equals(IndexConstants.INDEX_RELATION_IDENTIFIER)) | ||
| } | ||
|
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| /** | ||
| * Extract the relation node if the given logical plan is linear. | ||
| * | ||
| * @param plan Logical plan to extract a relation node from. | ||
| * @return If the plan is linear and the relation node is supported, the [[FileBasedRelation]] | ||
| * object that wraps the relation node. Otherwise None. | ||
| */ | ||
| def getRelation(spark: SparkSession, plan: LogicalPlan): Option[FileBasedRelation] = { | ||
| val provider = Hyperspace.getContext(spark).sourceProviderManager | ||
| val leaves = plan.collectLeaves() | ||
| if (leaves.size == 1 && provider.isSupportedRelation(leaves.head)) { | ||
| Some(provider.getRelation(leaves.head)) | ||
| } else { | ||
| None | ||
| } | ||
| } | ||
| } |
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