DropTableCommand.java

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// to you under the Apache License, Version 2.0 (the
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package org.apache.doris.nereids.trees.plans.commands;

import org.apache.doris.analysis.StmtType;
import org.apache.doris.catalog.Env;
import org.apache.doris.common.ErrorCode;
import org.apache.doris.common.ErrorReport;
import org.apache.doris.common.util.InternalDatabaseUtil;
import org.apache.doris.mysql.privilege.PrivPredicate;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.commands.info.TableNameInfo;
import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.StmtExecutor;

import com.google.common.base.Strings;

/**
 * drop table command
 */
public class DropTableCommand extends Command implements ForwardWithSync {

    private boolean ifExists;
    private final TableNameInfo tableName;
    private final boolean isView;
    private boolean forceDrop;
    private boolean isMaterializedView;

    public DropTableCommand(boolean ifExists, TableNameInfo tableName, boolean forceDrop) {
        super(PlanType.DROP_TABLE_COMMAND);
        this.ifExists = ifExists;
        this.tableName = tableName;
        this.isView = false;
        this.forceDrop = forceDrop;
    }

    public DropTableCommand(boolean ifExists, TableNameInfo tableName, boolean isView, boolean forceDrop) {
        super(PlanType.DROP_TABLE_COMMAND);
        this.ifExists = ifExists;
        this.tableName = tableName;
        this.isView = isView;
        this.forceDrop = forceDrop;
    }

    @Override
    public <R, C> R accept(PlanVisitor<R, C> visitor, C context) {
        return visitor.visitDropTableCommand(this, context);
    }

    @Override
    public void run(ConnectContext ctx, StmtExecutor executor) throws Exception {
        if (Strings.isNullOrEmpty(tableName.getDb())) {
            tableName.setDb(ctx.getDatabase());
        }
        tableName.analyze(ctx);
        InternalDatabaseUtil.checkDatabase(tableName.getDb(), ctx);
        // check access
        if (!Env.getCurrentEnv().getAccessManager()
                .checkTblPriv(ConnectContext.get(), tableName.getCtl(), tableName.getDb(),
                tableName.getTbl(), PrivPredicate.DROP)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR, "DROP");
        }
        Env.getCurrentEnv().dropTable(tableName.getCtl(), tableName.getDb(), tableName.getTbl(), isView,
                isMaterializedView, ifExists, forceDrop);
    }

    @Override
    public StmtType stmtType() {
        return StmtType.DROP;
    }
}