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[FLINK-32517][table] Support to execute [CREATE OR] REPLACE TABLE AS …
…statement (apache#22949)
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86 changes: 86 additions & 0 deletions
86
...ble-api-java/src/main/java/org/apache/flink/table/operations/ReplaceTableAsOperation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.table.operations; | ||
|
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.table.catalog.CatalogManager; | ||
| import org.apache.flink.table.operations.ddl.CreateTableOperation; | ||
|
|
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| import java.util.Collections; | ||
| import java.util.LinkedHashMap; | ||
| import java.util.Map; | ||
|
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| /** Operation to describe a [CREATE OR] REPLACE TABLE AS statement. */ | ||
| @Internal | ||
| public class ReplaceTableAsOperation implements ModifyOperation { | ||
|
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| private final CreateTableOperation createTableOperation; | ||
| private final QueryOperation sinkModifyQuery; | ||
| private final boolean isCreateOrReplace; | ||
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| public ReplaceTableAsOperation( | ||
| CreateTableOperation createTableOperation, | ||
| QueryOperation sinkModifyQuery, | ||
| boolean isCreateOrReplace) { | ||
| this.createTableOperation = createTableOperation; | ||
| this.sinkModifyQuery = sinkModifyQuery; | ||
| this.isCreateOrReplace = isCreateOrReplace; | ||
| } | ||
|
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| @Override | ||
| public QueryOperation getChild() { | ||
| return sinkModifyQuery; | ||
| } | ||
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| @Override | ||
| public <T> T accept(ModifyOperationVisitor<T> visitor) { | ||
| return visitor.visit(this); | ||
| } | ||
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| public CreateTableOperation getCreateTableOperation() { | ||
| return createTableOperation; | ||
| } | ||
|
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| public boolean isCreateOrReplace() { | ||
| return isCreateOrReplace; | ||
| } | ||
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| public SinkModifyOperation toSinkModifyOperation(CatalogManager catalogManager) { | ||
| return new SinkModifyOperation( | ||
| catalogManager.getTableOrError(createTableOperation.getTableIdentifier()), | ||
| sinkModifyQuery, | ||
| Collections.emptyMap(), | ||
| null, // targetColumns | ||
| false, | ||
| Collections.emptyMap()); | ||
| } | ||
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| @Override | ||
| public String asSummaryString() { | ||
| Map<String, Object> params = new LinkedHashMap<>(); | ||
| params.put("catalogTable", getCreateTableOperation().getCatalogTable()); | ||
| params.put("identifier", getCreateTableOperation().getTableIdentifier()); | ||
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| return OperationUtils.formatWithChildren( | ||
| isCreateOrReplace ? "CREATE OR REPLACE TABLE AS" : "REPLACE TABLE AS", | ||
| params, | ||
| Collections.singletonList(sinkModifyQuery), | ||
| Operation::asSummaryString); | ||
| } | ||
| } |
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89 changes: 89 additions & 0 deletions
89
...java/org/apache/flink/table/planner/operations/converters/SqlReplaceTableAsConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.flink.table.planner.operations.converters; | ||
|
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| import org.apache.flink.sql.parser.ddl.SqlReplaceTableAs; | ||
| import org.apache.flink.sql.parser.ddl.SqlTableOption; | ||
| import org.apache.flink.table.api.Schema; | ||
| import org.apache.flink.table.catalog.CatalogManager; | ||
| import org.apache.flink.table.catalog.CatalogTable; | ||
| import org.apache.flink.table.catalog.ObjectIdentifier; | ||
| import org.apache.flink.table.catalog.UnresolvedIdentifier; | ||
| import org.apache.flink.table.operations.Operation; | ||
| import org.apache.flink.table.operations.QueryOperation; | ||
| import org.apache.flink.table.operations.ReplaceTableAsOperation; | ||
| import org.apache.flink.table.operations.ddl.CreateTableOperation; | ||
| import org.apache.flink.table.planner.operations.PlannerQueryOperation; | ||
| import org.apache.flink.table.planner.utils.OperationConverterUtils; | ||
|
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| import org.apache.calcite.sql.SqlNode; | ||
|
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| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
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| /** A converter for {@link SqlReplaceTableAs}. */ | ||
| public class SqlReplaceTableAsConverter implements SqlNodeConverter<SqlReplaceTableAs> { | ||
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| @Override | ||
| public Operation convertSqlNode(SqlReplaceTableAs sqlReplaceTableAs, ConvertContext context) { | ||
| CatalogManager catalogManager = context.getCatalogManager(); | ||
| UnresolvedIdentifier unresolvedIdentifier = | ||
| UnresolvedIdentifier.of(sqlReplaceTableAs.fullTableName()); | ||
| ObjectIdentifier identifier = catalogManager.qualifyIdentifier(unresolvedIdentifier); | ||
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| SqlNode asQuerySqlNode = sqlReplaceTableAs.getAsQuery(); | ||
| context.getSqlValidator().validate(asQuerySqlNode); | ||
| QueryOperation query = | ||
| new PlannerQueryOperation(context.toRelRoot(asQuerySqlNode).project()); | ||
|
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| // get table comment | ||
| String tableComment = | ||
| OperationConverterUtils.getTableComment(sqlReplaceTableAs.getComment()); | ||
|
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| // get table properties | ||
| Map<String, String> properties = new HashMap<>(); | ||
| sqlReplaceTableAs | ||
| .getPropertyList() | ||
| .getList() | ||
| .forEach( | ||
| p -> | ||
| properties.put( | ||
| ((SqlTableOption) p).getKeyString(), | ||
| ((SqlTableOption) p).getValueString())); | ||
|
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| // get table | ||
| CatalogTable catalogTable = | ||
| CatalogTable.of( | ||
| Schema.newBuilder().fromResolvedSchema(query.getResolvedSchema()).build(), | ||
| tableComment, | ||
| Collections.emptyList(), | ||
| properties); | ||
|
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| CreateTableOperation createTableOperation = | ||
| new CreateTableOperation( | ||
| identifier, | ||
| catalogTable, | ||
| sqlReplaceTableAs.isIfNotExists(), | ||
| sqlReplaceTableAs.isTemporary()); | ||
|
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| return new ReplaceTableAsOperation( | ||
| createTableOperation, query, sqlReplaceTableAs.isCreateOrReplace()); | ||
| } | ||
| } |
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