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* Add new SQL module with support for SELECT literal * Add support for more data types * Route request to new frontend * Add more UT * Fix doctest * Add more UT * Add more UT * Fix checkstyle and jacoco * Address PR * Add more docs * Use new syntax check exception * Unregister new handler and add UT * Support fetch size 0 which is default request by JDBC driver * Address PR comments
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55 changes: 55 additions & 0 deletions
55
core/src/main/java/com/amazon/opendistroforelasticsearch/sql/ast/tree/Values.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file 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.amazon.opendistroforelasticsearch.sql.ast.tree; | ||
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| import com.amazon.opendistroforelasticsearch.sql.ast.AbstractNodeVisitor; | ||
| import com.amazon.opendistroforelasticsearch.sql.ast.Node; | ||
| import com.amazon.opendistroforelasticsearch.sql.ast.expression.Literal; | ||
| import com.google.common.collect.ImmutableList; | ||
| import java.util.List; | ||
| import lombok.EqualsAndHashCode; | ||
| import lombok.Getter; | ||
| import lombok.RequiredArgsConstructor; | ||
| import lombok.ToString; | ||
|
|
||
| /** | ||
| * AST node class for a sequence of literal values. | ||
| */ | ||
| @ToString | ||
| @Getter | ||
| @EqualsAndHashCode(callSuper = false) | ||
| @RequiredArgsConstructor | ||
| public class Values extends UnresolvedPlan { | ||
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| private final List<List<Literal>> values; | ||
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| @Override | ||
| public UnresolvedPlan attach(UnresolvedPlan child) { | ||
| throw new UnsupportedOperationException("Values node is supposed to have no child node"); | ||
| } | ||
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| @Override | ||
| public <T, C> T accept(AbstractNodeVisitor<T, C> nodeVisitor, C context) { | ||
| return nodeVisitor.visitValues(this, context); | ||
| } | ||
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| @Override | ||
| public List<? extends Node> getChild() { | ||
| return ImmutableList.of(); | ||
| } | ||
|
|
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| } |
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116 changes: 116 additions & 0 deletions
116
core/src/main/java/com/amazon/opendistroforelasticsearch/sql/planner/DefaultImplementor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /* | ||
| * Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file 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.amazon.opendistroforelasticsearch.sql.planner; | ||
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| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalAggregation; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalDedupe; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalEval; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalFilter; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalPlan; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalPlanNodeVisitor; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalProject; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalRelation; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalRemove; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalRename; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalSort; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.logical.LogicalValues; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.AggregationOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.DedupeOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.EvalOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.FilterOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.PhysicalPlan; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.ProjectOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.RemoveOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.RenameOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.SortOperator; | ||
| import com.amazon.opendistroforelasticsearch.sql.planner.physical.ValuesOperator; | ||
|
|
||
| /** | ||
| * Default implementor for implementing logical to physical translation. "Default" here means all | ||
| * logical operator will be translated to correspondent physical operator to pipeline operations | ||
| * in post-processing style in memory. | ||
| * Different storage can override methods here to optimize default pipelining operator, for example | ||
| * a storage has the flexibility to override visitFilter and visitRelation to push down filtering | ||
| * operation and return a single physical index scan operator. | ||
| * | ||
| * @param <C> context type | ||
| */ | ||
| public class DefaultImplementor<C> extends LogicalPlanNodeVisitor<PhysicalPlan, C> { | ||
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| @Override | ||
| public PhysicalPlan visitDedupe(LogicalDedupe node, C context) { | ||
| return new DedupeOperator( | ||
| visitChild(node, context), | ||
| node.getDedupeList(), | ||
| node.getAllowedDuplication(), | ||
| node.getKeepEmpty(), | ||
| node.getConsecutive()); | ||
| } | ||
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| @Override | ||
| public PhysicalPlan visitProject(LogicalProject node, C context) { | ||
| return new ProjectOperator(visitChild(node, context), node.getProjectList()); | ||
| } | ||
|
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| @Override | ||
| public PhysicalPlan visitRemove(LogicalRemove node, C context) { | ||
| return new RemoveOperator(visitChild(node, context), node.getRemoveList()); | ||
| } | ||
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| @Override | ||
| public PhysicalPlan visitEval(LogicalEval node, C context) { | ||
| return new EvalOperator(visitChild(node, context), node.getExpressions()); | ||
| } | ||
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| @Override | ||
| public PhysicalPlan visitSort(LogicalSort node, C context) { | ||
| return new SortOperator(visitChild(node, context), node.getCount(), node.getSortList()); | ||
| } | ||
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| @Override | ||
| public PhysicalPlan visitRename(LogicalRename node, C context) { | ||
| return new RenameOperator(visitChild(node, context), node.getRenameMap()); | ||
| } | ||
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| @Override | ||
| public PhysicalPlan visitAggregation(LogicalAggregation node, C context) { | ||
| return new AggregationOperator( | ||
| visitChild(node, context), node.getAggregatorList(), node.getGroupByList()); | ||
| } | ||
|
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| @Override | ||
| public PhysicalPlan visitFilter(LogicalFilter node, C context) { | ||
| return new FilterOperator(visitChild(node, context), node.getCondition()); | ||
| } | ||
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| @Override | ||
| public PhysicalPlan visitValues(LogicalValues node, C context) { | ||
| return new ValuesOperator(node.getValues()); | ||
| } | ||
|
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| @Override | ||
| public PhysicalPlan visitRelation(LogicalRelation node, C context) { | ||
| throw new UnsupportedOperationException("Storage engine is responsible for " | ||
| + "implementing and optimizing logical plan with relation involved"); | ||
| } | ||
|
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| protected PhysicalPlan visitChild(LogicalPlan node, C context) { | ||
| // Logical operators visited here must have a single child | ||
| return node.getChild().get(0).accept(this, context); | ||
| } | ||
|
|
||
| } |
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