[shardingsphere] branch master updated: Add statistic for FilterableTable. (#13051)

[du...@apache.org]

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duanzhengqiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere.git


The following commit(s) were added to refs/heads/master by this push:
     new ef62da3  Add statistic for FilterableTable. (#13051)
ef62da3 is described below

commit ef62da39c7778a2cf6a49186c9d590cc0ad5a47c
Author: coco <co...@gmail.com>
AuthorDate: Mon Oct 25 17:32:36 2021 +0800

    Add statistic for FilterableTable. (#13051)
    
    * feat: add statistic for FilterableTable.
    
    * style: add license in FederationTableStatistic.
    
    * style: modify code style.
---
 .../original/FederationTableStatistic.java         | 63 ++++++++++++++++++++++
 .../sql/federate/original/FilterableSchema.java    |  2 +-
 .../federate/original/table/FilterableTable.java   | 14 +++--
 3 files changed, 75 insertions(+), 4 deletions(-)

diff --git a/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FederationTableStatistic.java b/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FederationTableStatistic.java
new file mode 100644
index 0000000..1e6fa65
--- /dev/null
+++ b/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FederationTableStatistic.java
@@ -0,0 +1,63 @@
+/*
+ * 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.shardingsphere.infra.executor.sql.federate.original;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.calcite.rel.RelCollation;
+import org.apache.calcite.rel.RelDistribution;
+import org.apache.calcite.rel.RelDistributionTraitDef;
+import org.apache.calcite.rel.RelReferentialConstraint;
+import org.apache.calcite.schema.Statistic;
+import org.apache.calcite.util.ImmutableBitSet;
+
+/**
+ * Statistic of federation table.
+ */
+public final class FederationTableStatistic implements Statistic {
+    
+    @Override
+    public Double getRowCount() {
+        return Statistic.super.getRowCount();
+    }
+
+    @Override
+    public boolean isKey(final ImmutableBitSet columns) {
+        return Statistic.super.isKey(columns);
+    }
+
+    @Override
+    public List<ImmutableBitSet> getKeys() {
+        return Statistic.super.getKeys();
+    }
+
+    @Override
+    public List<RelReferentialConstraint> getReferentialConstraints() {
+        return new ArrayList<>();
+    }
+
+    @Override
+    public List<RelCollation> getCollations() {
+        return new ArrayList<>();
+    }
+
+    @Override
+    public RelDistribution getDistribution() {
+        return RelDistributionTraitDef.INSTANCE.getDefault();
+    }
+}
diff --git a/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FilterableSchema.java b/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FilterableSchema.java
index c57ff2e..f1e6064 100644
--- a/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FilterableSchema.java
+++ b/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/FilterableSchema.java
@@ -46,7 +46,7 @@ public final class FilterableSchema extends AbstractSchema {
     private Map<String, Table> createTableMap(final FederationSchemaMetaData schemaMetaData, final FilterableTableScanExecutor executor) {
         Map<String, Table> result = new LinkedMap<>(schemaMetaData.getTables().size(), 1);
         for (FederationTableMetaData each : schemaMetaData.getTables().values()) {
-            result.put(each.getName(), new FilterableTable(each, executor));
+            result.put(each.getName(), new FilterableTable(each, executor, new FederationTableStatistic()));
         }
         return result;
     }
diff --git a/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/table/FilterableTable.java b/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/table/FilterableTable.java
index c7340cf..cbe17d3 100644
--- a/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/table/FilterableTable.java
+++ b/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/federate/original/table/FilterableTable.java
@@ -17,6 +17,8 @@
 
 package org.apache.shardingsphere.infra.executor.sql.federate.original.table;
 
+import java.util.Collection;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.apache.calcite.DataContext;
 import org.apache.calcite.linq4j.AbstractEnumerable;
@@ -26,14 +28,13 @@ import org.apache.calcite.rel.type.RelDataType;
 import org.apache.calcite.rel.type.RelDataTypeFactory;
 import org.apache.calcite.rex.RexNode;
 import org.apache.calcite.schema.ProjectableFilterableTable;
+import org.apache.calcite.schema.Statistic;
 import org.apache.calcite.schema.impl.AbstractTable;
 import org.apache.shardingsphere.infra.executor.sql.execute.result.query.QueryResult;
+import org.apache.shardingsphere.infra.executor.sql.federate.original.FederationTableStatistic;
 import org.apache.shardingsphere.infra.executor.sql.federate.original.row.FilterableRowEnumerator;
 import org.apache.shardingsphere.infra.optimize.metadata.FederationTableMetaData;
 
-import java.util.Collection;
-import java.util.List;
-
 /**
  * Filterable table.
  */
@@ -44,6 +45,8 @@ public final class FilterableTable extends AbstractTable implements ProjectableF
     
     private final FilterableTableScanExecutor executor;
     
+    private final FederationTableStatistic statistic;
+    
     @Override
     public RelDataType getRowType(final RelDataTypeFactory typeFactory) {
         return metaData.getRelProtoDataType().apply(typeFactory);
@@ -60,4 +63,9 @@ public final class FilterableTable extends AbstractTable implements ProjectableF
             }
         };
     }
+    
+    @Override
+    public Statistic getStatistic() {
+        return statistic;
+    }
 }