[Enhancement] (nereids)implement showSqlBlockRuleCommand in nereids

fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4

@@ -208,6 +208,7 @@ supportedShowStatement
     | SHOW PARTITION partitionId=INTEGER_VALUE                                      #showPartitionId
     | SHOW PROC path=STRING_LITERAL                                                 #showProc        
     | SHOW STORAGE? ENGINES                                                         #showStorageEngines
+    | SHOW SQL_BLOCK_RULE (FOR ruleName=identifier)?                                #showSqlBlockRule
     | SHOW CREATE MATERIALIZED VIEW mvName=identifier
         ON tableName=multipartIdentifier                                            #showCreateMaterializedView   
     | SHOW BACKENDS                                                                 #showBackends
@@ -244,8 +245,7 @@ lockTable
 
 
 unsupportedShowStatement
-    : SHOW SQL_BLOCK_RULE (FOR ruleName=identifier)?                                #showSqlBlockRule
-    | SHOW ROW POLICY (FOR (userIdentify | (ROLE role=identifier)))?                #showRowPolicy
+    : SHOW ROW POLICY (FOR (userIdentify | (ROLE role=identifier)))?                #showRowPolicy
     | SHOW STORAGE POLICY (USING (FOR policy=identifierOrText)?)?                   #showStoragePolicy
     | SHOW STAGES                                                                   #showStages
     | SHOW STORAGE (VAULT | VAULTS)                                                 #showStorageVault

fe/fe-core/src/main/java/org/apache/doris/blockrule/SqlBlockRuleMgr.java

@@ -80,6 +80,13 @@ public boolean existRule(String name) {
      **/
     public List<SqlBlockRule> getSqlBlockRule(ShowSqlBlockRuleStmt stmt) throws AnalysisException {
         String ruleName = stmt.getRuleName();
+        return getSqlBlockRule(ruleName);
+    }
+
+    /**
+     * Get SqlBlockRule by rulename.
+     **/
+    public List<SqlBlockRule> getSqlBlockRule(String ruleName) throws AnalysisException {
         if (StringUtils.isNotEmpty(ruleName)) {
             if (nameToSqlBlockRuleMap.containsKey(ruleName)) {
                 SqlBlockRule sqlBlockRule = nameToSqlBlockRuleMap.get(ruleName);

fe/fe-core/src/main/java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java

@@ -209,6 +209,7 @@
 import org.apache.doris.nereids.DorisParser.ShowProcedureStatusContext;
 import org.apache.doris.nereids.DorisParser.ShowRepositoriesContext;
 import org.apache.doris.nereids.DorisParser.ShowRolesContext;
+import org.apache.doris.nereids.DorisParser.ShowSqlBlockRuleContext;
 import org.apache.doris.nereids.DorisParser.ShowStorageEnginesContext;
 import org.apache.doris.nereids.DorisParser.ShowTableIdContext;
 import org.apache.doris.nereids.DorisParser.ShowVariablesContext;
@@ -455,6 +456,7 @@
 import org.apache.doris.nereids.trees.plans.commands.ShowProcedureStatusCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowRepositoriesCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowRolesCommand;
+import org.apache.doris.nereids.trees.plans.commands.ShowSqlBlockRuleCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowStorageEnginesCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowTableIdCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowVariablesCommand;
@@ -4111,6 +4113,15 @@ public LogicalPlan visitShowPlugins(ShowPluginsContext ctx) {
         return new ShowPluginsCommand();
     }
 
+    @Override
+    public LogicalPlan visitShowSqlBlockRule(ShowSqlBlockRuleContext ctx) {
+        String ruleName = null;
+        if (ctx.ruleName != null) {
+            ruleName = ctx.ruleName.getText();
+        }
+        return new ShowSqlBlockRuleCommand(ruleName);
+    }
+
     @Override
     public LogicalPlan visitShowRepositories(ShowRepositoriesContext ctx) {
         return new ShowRepositoriesCommand();

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/PlanType.java

@@ -177,6 +177,7 @@ public enum PlanType {
     PREPARED_COMMAND,
     EXECUTE_COMMAND,
     SHOW_BACKENDS_COMMAND,
+    SHOW_BLOCK_RULE_COMMAND,
     SHOW_CONFIG_COMMAND,
     SHOW_CREATE_MATERIALIZED_VIEW_COMMAND,
     SHOW_FRONTENDS_COMMAND,

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ShowSqlBlockRuleCommand.java

@@ -0,0 +1,80 @@
+// 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.doris.nereids.trees.plans.commands;
+
+import org.apache.doris.blockrule.SqlBlockRule;
+import org.apache.doris.catalog.Column;
+import org.apache.doris.catalog.Env;
+import org.apache.doris.catalog.ScalarType;
+import org.apache.doris.common.ErrorCode;
+import org.apache.doris.common.ErrorReport;
+import org.apache.doris.mysql.privilege.PrivPredicate;
+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;
+
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
+/**
+ * show sql block rule command
+ */
+public class ShowSqlBlockRuleCommand extends ShowCommand {
+    private static final ShowResultSetMetaData META_DATA =
+            ShowResultSetMetaData.builder()
+                    .addColumn(new Column("Name", ScalarType.createVarchar(50)))
+                    .addColumn(new Column("Sql", ScalarType.createVarchar(65535)))
+                    .addColumn(new Column("SqlHash", ScalarType.createVarchar(65535)))
+                    .addColumn(new Column("PartitionNum", ScalarType.createVarchar(10)))
+                    .addColumn(new Column("TabletNum", ScalarType.createVarchar(10)))
+                    .addColumn(new Column("Cardinality", ScalarType.createVarchar(20)))
+                    .addColumn(new Column("Global", ScalarType.createVarchar(4)))
+                    .addColumn(new Column("Enable", ScalarType.createVarchar(4)))
+                    .build();
+    private final String ruleName; // optional
+
+    /**
+     * constructor
+     */
+    public ShowSqlBlockRuleCommand(String ruleName) {
+        super(PlanType.SHOW_BLOCK_RULE_COMMAND);
+        this.ruleName = ruleName;
+    }
+
+    @Override
+    public ShowResultSet doRun(ConnectContext ctx, StmtExecutor executor) throws Exception {
+        // check auth
+        if (!Env.getCurrentEnv().getAccessManager().checkGlobalPriv(ConnectContext.get(), PrivPredicate.ADMIN)) {
+            ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR, "ADMIN");
+        }
+
+        List<List<String>> rows = Lists.newArrayList();
+        List<SqlBlockRule> sqlBlockRules = Env.getCurrentEnv().getSqlBlockRuleMgr().getSqlBlockRule(ruleName);
+        sqlBlockRules.forEach(rule -> rows.add(rule.getShowInfo()));
+        return new ShowResultSet(META_DATA, rows);
+    }
+
+    @Override
+    public <R, C> R accept(PlanVisitor<R, C> visitor, C context) {
+        return visitor.visitShowSqlBlockRuleCommand(this, context);
+    }
+}

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/visitor/CommandVisitor.java

@@ -65,6 +65,7 @@
 import org.apache.doris.nereids.trees.plans.commands.ShowProcedureStatusCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowRepositoriesCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowRolesCommand;
+import org.apache.doris.nereids.trees.plans.commands.ShowSqlBlockRuleCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowStorageEnginesCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowTableIdCommand;
 import org.apache.doris.nereids.trees.plans.commands.ShowVariablesCommand;
@@ -274,6 +275,10 @@ default R visitShowBackendsCommand(ShowBackendsCommand showBackendsCommand, C co
         return visitCommand(showBackendsCommand, context);
     }
 
+    default R visitShowSqlBlockRuleCommand(ShowSqlBlockRuleCommand showblockruleCommand, C context) {
+        return visitCommand(showblockruleCommand, context);
+    }
+
     default R visitShowPluginsCommand(ShowPluginsCommand showPluginsCommand, C context) {
         return visitCommand(showPluginsCommand, context);
     }

regression-test/data/sql_block_rule_p0/test_sql_block_rule.out

@@ -1,3 +1,9 @@
 -- This file is automatically generated. You should know what you did if you want to edit this
--- !select --
+-- !select1 --
+test_rule_sql	SELECT abcd FROM table_2	NULL	0	0	0	true	true
+
+-- !select2 --
+test_rule_sql	SELECT abcd FROM table_2	NULL	0	0	0	true	true
+
+-- !select3 --
 

regression-test/suites/sql_block_rule_p0/test_sql_block_rule.groovy

@@ -82,6 +82,16 @@ suite("test_sql_block_rule", "nonConcurrent") {
         exception "sql match regex sql block rule: test_rule_sql"
     }
 
+    checkNereidsExecute("SHOW SQL_BLOCK_RULE")
+
+    qt_select1 """
+                SHOW SQL_BLOCK_RULE
+              """
+
+    qt_select2 """
+                SHOW SQL_BLOCK_RULE FOR test_rule_sql
+              """
+
     sql """
                 DROP SQL_BLOCK_RULE if exists test_rule_sql
               """
@@ -100,7 +110,7 @@ suite("test_sql_block_rule", "nonConcurrent") {
         exception "sql hits sql block rule: test_rule_num, reach tablet_num : 1"
     }
 */
-    qt_select """
+    qt_select3 """
                 SHOW SQL_BLOCK_RULE
               """