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[Enhancement] (nereids)implement SHOW CATALOG COMMAND in nereids (#44633
) Issue Number: close #42745
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104 changes: 104 additions & 0 deletions
104
...-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ShowCatalogCommand.java
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| @@ -0,0 +1,104 @@ | ||
| // 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.doris.nereids.trees.plans.commands; | ||
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| import org.apache.doris.catalog.Column; | ||
| import org.apache.doris.catalog.Env; | ||
| import org.apache.doris.catalog.ScalarType; | ||
| import org.apache.doris.nereids.trees.plans.PlanType; | ||
| import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor; | ||
| import org.apache.doris.qe.ConnectContext; | ||
| import org.apache.doris.qe.ShowResultSet; | ||
| import org.apache.doris.qe.ShowResultSetMetaData; | ||
| import org.apache.doris.qe.StmtExecutor; | ||
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| import java.util.List; | ||
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| /** | ||
| * Represents the command for show all catalog or desc the specific catalog. | ||
| */ | ||
| public class ShowCatalogCommand extends ShowCommand { | ||
| private static final ShowResultSetMetaData META_DATA_ALL = | ||
| ShowResultSetMetaData.builder().addColumn(new Column("CatalogId", ScalarType.BIGINT)) | ||
| .addColumn(new Column("CatalogName", ScalarType.createVarchar(64))) | ||
| .addColumn(new Column("Type", ScalarType.createStringType())) | ||
| .addColumn(new Column("IsCurrent", ScalarType.createStringType())) | ||
| .addColumn(new Column("CreateTime", ScalarType.createStringType())) | ||
| .addColumn(new Column("LastUpdateTime", ScalarType.createStringType())) | ||
| .addColumn(new Column("Comment", ScalarType.createStringType())) | ||
| .build(); | ||
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| private static final ShowResultSetMetaData META_DATA_SPECIFIC = | ||
| ShowResultSetMetaData.builder() | ||
| .addColumn(new Column("Key", ScalarType.createStringType())) | ||
| .addColumn(new Column("Value", ScalarType.createStringType())) | ||
| .build(); | ||
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| private final String catalogName; | ||
| private final String pattern; | ||
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| public ShowCatalogCommand(String catalogName, String pattern) { | ||
| super(PlanType.SHOW_CATALOG_COMMAND); | ||
| this.catalogName = catalogName; | ||
| this.pattern = pattern; | ||
| } | ||
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| @Override | ||
| public ShowResultSet doRun(ConnectContext ctx, StmtExecutor executor) throws Exception { | ||
| List<List<String>> rows = Env.getCurrentEnv().getCatalogMgr() | ||
| .showCatalogs(catalogName, pattern, ctx.getCurrentCatalog() != null | ||
| ? ctx.getCurrentCatalog().getName() : null); | ||
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| return new ShowResultSet(getMetaData(), rows); | ||
| } | ||
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| @Override | ||
| public <R, C> R accept(PlanVisitor<R, C> visitor, C context) { | ||
| return visitor.visitShowCatalogCommand(this, context); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| StringBuilder sb = new StringBuilder(); | ||
| sb.append("SHOW"); | ||
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| if (catalogName != null) { | ||
| sb.append(" CATALOG "); | ||
| sb.append(catalogName); | ||
| } else { | ||
| sb.append(" CATALOGS"); | ||
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| if (pattern != null) { | ||
| sb.append(" LIKE "); | ||
| sb.append("'"); | ||
| sb.append(pattern); | ||
| sb.append("'"); | ||
| } | ||
| } | ||
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| return sb.toString(); | ||
| } | ||
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| public ShowResultSetMetaData getMetaData() { | ||
| if (catalogName == null) { | ||
| return META_DATA_ALL; | ||
| } else { | ||
| return META_DATA_SPECIFIC; | ||
| } | ||
| } | ||
| } |
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33 changes: 33 additions & 0 deletions
33
regression-test/suites/nereids_p0/show/test_show_catalog.groovy
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // 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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| suite("test_show_catalog", "query,catalog") { | ||
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| String catalog_name = "es" | ||
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| sql """drop catalog if exists ${catalog_name}""" | ||
| sql """create catalog if not exists ${catalog_name} properties ( | ||
| "type"="es", | ||
| "hosts"="http://127.0.0.1:9200" | ||
| );""" | ||
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| checkNereidsExecute("""show catalog ${catalog_name}""") | ||
| checkNereidsExecute("""show catalogs like 'e%'""") | ||
| checkNereidsExecute("""show catalogs """) | ||
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| sql """drop catalog if exists ${catalog_name}""" | ||
| } |