Jackie-Jiang commented on code in PR #15526: URL: https://github.com/apache/pinot/pull/15526#discussion_r2074190174
########## pinot-core/src/main/java/org/apache/pinot/core/operator/filter/MapIndexFilterOperator.java: ########## @@ -0,0 +1,269 @@ +/** + * 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.pinot.core.operator.filter; + +import com.google.common.base.CaseFormat; +import java.util.Collections; +import java.util.List; +import org.apache.pinot.common.request.context.ExpressionContext; +import org.apache.pinot.common.request.context.predicate.EqPredicate; +import org.apache.pinot.common.request.context.predicate.InPredicate; +import org.apache.pinot.common.request.context.predicate.JsonMatchPredicate; +import org.apache.pinot.common.request.context.predicate.NotEqPredicate; +import org.apache.pinot.common.request.context.predicate.NotInPredicate; +import org.apache.pinot.common.request.context.predicate.Predicate; +import org.apache.pinot.core.common.BlockDocIdSet; +import org.apache.pinot.core.common.Operator; +import org.apache.pinot.core.operator.ExplainAttributeBuilder; +import org.apache.pinot.core.query.request.context.QueryContext; +import org.apache.pinot.segment.spi.IndexSegment; +import org.apache.pinot.segment.spi.datasource.DataSource; +import org.apache.pinot.segment.spi.index.reader.JsonIndexReader; + + +/** + * Filter operator for Map matching that internally uses JsonMatchFilterOperator or ExpressionFilterOperator. + * This operator converts map predicates to JSON predicates and delegates filtering operations + * to JsonMatchFilterOperator. + */ +public class MapIndexFilterOperator extends BaseFilterOperator { + private static final String EXPLAIN_NAME = "FILTER_MAP_INDEX"; + + private final JsonMatchFilterOperator _jsonMatchOperator; + private final ExpressionFilterOperator _expressionFilterOperator; + private final String _columnName; + private final String _keyName; + private final Predicate _predicate; + private final JsonMatchPredicate _jsonMatchPredicate; + + public MapIndexFilterOperator(IndexSegment indexSegment, Predicate predicate, QueryContext queryContext, + int numDocs) { + super(numDocs, false); + _predicate = predicate; + + // Get column name and key name from function arguments + List<ExpressionContext> arguments = predicate.getLhs().getFunction().getArguments(); + if (arguments.size() != 2) { + throw new IllegalStateException("Expected two arguments (column name and key name), found: " + arguments.size()); + } + + _columnName = arguments.get(0).getIdentifier(); + _keyName = cleanKey(String.valueOf(arguments.get(1).getLiteral())); + + // Get JSON index and create operator + DataSource dataSource = indexSegment.getDataSource(_columnName); + JsonIndexReader jsonIndex = dataSource.getJsonIndex(); + if (jsonIndex != null && useJsonIndex(_predicate.getType())) { + _jsonMatchPredicate = createJsonMatchPredicate(); + _jsonMatchOperator = initializeJsonMatchFilterOperator(jsonIndex, numDocs); + _expressionFilterOperator = null; + } else { + _jsonMatchPredicate = null; + _jsonMatchOperator = null; + _expressionFilterOperator = new ExpressionFilterOperator(indexSegment, queryContext, predicate, numDocs); + } + } + + /** + * Creates a JsonMatchPredicate based on the original predicate type + */ + private JsonMatchPredicate createJsonMatchPredicate() { + // Convert predicate to JSON format based on type + String jsonValue; + switch (_predicate.getType()) { + case EQ: + jsonValue = createJsonEqPredicateValue(_keyName, ((EqPredicate) _predicate).getValue()); + break; + case NOT_EQ: + jsonValue = createJsonNotEqPredicateValue(_keyName, ((NotEqPredicate) _predicate).getValue()); + break; + case IN: + jsonValue = createJsonInPredicateValue(_keyName, ((InPredicate) _predicate).getValues()); + break; + case NOT_IN: + jsonValue = createJsonNotInPredicateValue(_keyName, ((NotInPredicate) _predicate).getValues()); + break; + default: + throw new IllegalStateException( + "Unsupported predicate type for creating json match predicate: " + _predicate.getType()); + } + + // Create identifier expression for the JSON column + ExpressionContext jsonLhs = ExpressionContext.forIdentifier("json"); + return new JsonMatchPredicate(jsonLhs, jsonValue, null); + } + + @Override + protected BlockDocIdSet getTrues() { + if (_jsonMatchOperator != null) { + return _jsonMatchOperator.getTrues(); + } else { + return _expressionFilterOperator.getTrues(); + } + } + + @Override + public boolean canOptimizeCount() { + if (_jsonMatchOperator != null) { + return _jsonMatchOperator.canOptimizeCount(); + } else { + return _expressionFilterOperator.canOptimizeCount(); + } + } + + @Override + public int getNumMatchingDocs() { + if (_jsonMatchOperator != null) { + return _jsonMatchOperator.getNumMatchingDocs(); + } else { + return _expressionFilterOperator.getNumMatchingDocs(); + } + } + + @Override + public boolean canProduceBitmaps() { + if (_jsonMatchOperator != null) { + return _jsonMatchOperator.canProduceBitmaps(); + } else { + return _expressionFilterOperator.canProduceBitmaps(); + } + } + + @Override + public BitmapCollection getBitmaps() { + if (_jsonMatchOperator != null) { + return _jsonMatchOperator.getBitmaps(); + } else { + return _expressionFilterOperator.getBitmaps(); + } + } + + @Override + public List<Operator> getChildOperators() { + return Collections.emptyList(); + } + + @Override + public String toExplainString() { + StringBuilder stringBuilder = + new StringBuilder(EXPLAIN_NAME).append("(column:").append(_columnName).append(",key:").append(_keyName) + .append(",indexLookUp:map_index").append(",operator:").append(_predicate.getType()).append(",predicate:") + .append(_predicate); + + if (_jsonMatchOperator != null) { + stringBuilder.append(",delegateTo:json_match"); + } else { + stringBuilder.append(",delegateTo:expression_filter"); + } + + return stringBuilder.append(')').toString(); + } + + @Override + protected String getExplainName() { + return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, EXPLAIN_NAME); + } + + @Override + protected void explainAttributes(ExplainAttributeBuilder attributeBuilder) { + super.explainAttributes(attributeBuilder); + attributeBuilder.putString("column", _columnName); + attributeBuilder.putString("key", _keyName); + attributeBuilder.putString("indexLookUp", "map_index"); + attributeBuilder.putString("operator", _predicate.getType().name()); + attributeBuilder.putString("predicate", _predicate.toString()); + + if (_jsonMatchOperator != null) { + attributeBuilder.putString("delegateTo", "json_match"); + } else { + attributeBuilder.putString("delegateTo", "expression_filter"); + } + } + + /** + * Initializes the JsonMatchFilterOperator with the given JsonIndexReader + */ + private JsonMatchFilterOperator initializeJsonMatchFilterOperator(JsonIndexReader jsonIndex, int numDocs) { + return new JsonMatchFilterOperator(jsonIndex, _jsonMatchPredicate, numDocs); + } + + private String createJsonEqPredicateValue(String key, String value) { Review Comment: How about actual string values? Unquoted string is identifier (column name), so I'm surprised that it could work -- 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: commits-unsubscr...@pinot.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
