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131 changes: 131 additions & 0 deletions
131
...src/main/scala/org/apache/spark/sql/execution/datasources/mergetree/TableProperties.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.execution.datasources.mergetree | ||
|
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| import org.apache.gluten.expression.ConverterUtils.normalizeColName | ||
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| import org.apache.spark.sql.catalyst.catalog.BucketSpec | ||
| import org.apache.spark.sql.delta.actions.Metadata | ||
|
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| /** Reserved table property for MergeTree table. */ | ||
| object TableProperties { | ||
| val Provider: String = "clickhouse" | ||
| val DEFAULT_FILE_FORMAT: String = "write.format.default" | ||
| val DEFAULT_FILE_FORMAT_DEFAULT: String = "mergetree" | ||
|
|
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| // Storage properties | ||
| val DefaultStorageDB: String = "default" | ||
| val STORAGE_DB: String = "storage_db" | ||
| val STORAGE_TABLE: String = "storage_table" | ||
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| val SERIALIZER_HEADER: String = "MergeTree;" | ||
| } | ||
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| trait TablePropertiesReader { | ||
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| def configuration: Map[String, String] | ||
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| /** delta */ | ||
| def metadata: Metadata | ||
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| def storageDB: String = | ||
| configuration.getOrElse(TableProperties.STORAGE_DB, TableProperties.DefaultStorageDB) | ||
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| def storageTable: String = | ||
| configuration.getOrElse(TableProperties.STORAGE_TABLE, "") | ||
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| private def getCommaSeparatedColumns(keyName: String): Option[Seq[String]] = { | ||
| configuration.get(keyName).map { | ||
| v => | ||
| val keys = v.split(",").map(n => normalizeColName(n.trim)).toSeq | ||
| keys.foreach { | ||
| s => | ||
| if (s.contains(".")) { | ||
| throw new IllegalStateException( | ||
| s"$keyName $s can not contain '.' (not support nested column yet)") | ||
| } | ||
| } | ||
| keys | ||
| } | ||
| } | ||
|
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| lazy val bucketOption: Option[BucketSpec] = { | ||
| val tableProperties = configuration | ||
| if (tableProperties.contains("numBuckets")) { | ||
| val numBuckets = tableProperties("numBuckets").trim.toInt | ||
| val bucketColumnNames: Seq[String] = | ||
| getCommaSeparatedColumns("bucketColumnNames").getOrElse(Seq.empty[String]) | ||
| val sortColumnNames: Seq[String] = | ||
| getCommaSeparatedColumns("orderByKey").getOrElse(Seq.empty[String]) | ||
| Some(BucketSpec(numBuckets, bucketColumnNames, sortColumnNames)) | ||
| } else { | ||
| None | ||
| } | ||
| } | ||
|
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| lazy val lowCardKeyOption: Option[Seq[String]] = { | ||
| getCommaSeparatedColumns("lowCardKey") | ||
| } | ||
|
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| lazy val minmaxIndexKeyOption: Option[Seq[String]] = { | ||
| getCommaSeparatedColumns("minmaxIndexKey") | ||
| } | ||
|
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| lazy val bfIndexKeyOption: Option[Seq[String]] = { | ||
| getCommaSeparatedColumns("bloomfilterIndexKey") | ||
| } | ||
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| lazy val setIndexKeyOption: Option[Seq[String]] = { | ||
| getCommaSeparatedColumns("setIndexKey") | ||
| } | ||
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| lazy val partitionColumns: Seq[String] = | ||
| metadata.partitionColumns.map(normalizeColName) | ||
|
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| lazy val orderByKeyOption: Option[Seq[String]] = { | ||
| val orderByKeys = | ||
| if (bucketOption.exists(_.sortColumnNames.nonEmpty)) { | ||
| bucketOption.map(_.sortColumnNames.map(normalizeColName)) | ||
| } else { | ||
| getCommaSeparatedColumns("orderByKey") | ||
| } | ||
| orderByKeys | ||
| .map(_.intersect(partitionColumns)) | ||
| .filter(_.nonEmpty) | ||
| .foreach { | ||
| invalidKeys => | ||
| throw new IllegalStateException( | ||
| s"partition cols $invalidKeys can not be in the order by keys.") | ||
| } | ||
| orderByKeys | ||
| } | ||
|
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| lazy val primaryKeyOption: Option[Seq[String]] = { | ||
| orderByKeyOption.map(_.mkString(",")).flatMap { | ||
| orderBy => | ||
| val primaryKeys = getCommaSeparatedColumns("primaryKey") | ||
| primaryKeys | ||
| .map(_.mkString(",")) | ||
| .filterNot(orderBy.startsWith) | ||
| .foreach( | ||
| primaryKey => | ||
| throw new IllegalStateException( | ||
| s"Primary key $primaryKey must be a prefix of the sorting key $orderBy")) | ||
| primaryKeys | ||
| } | ||
| } | ||
| } |