DropIndexOp.java

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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.nereids.trees.plans.commands.info;

import org.apache.doris.alter.AlterOpType;
import org.apache.doris.analysis.AlterTableClause;
import org.apache.doris.analysis.DropIndexClause;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.UserException;
import org.apache.doris.qe.ConnectContext;

import org.apache.commons.lang3.StringUtils;

import java.util.Map;

/**
 * DropIndexOp
 */
public class DropIndexOp extends AlterTableOp {
    private final String indexName;
    private final TableNameInfo tableName;
    private boolean ifExists;

    private boolean alter;

    public DropIndexOp(String indexName, boolean ifExists, TableNameInfo tableName, boolean alter) {
        super(AlterOpType.SCHEMA_CHANGE);
        this.indexName = indexName;
        this.ifExists = ifExists;
        this.tableName = tableName;
        this.alter = alter;
    }

    public String getIndexName() {
        return indexName;
    }

    public TableNameInfo getTableName() {
        return tableName;
    }

    public boolean isSetIfExists() {
        return ifExists;
    }

    public boolean isAlter() {
        return alter;
    }

    @Override
    public Map<String, String> getProperties() {
        return null;
    }

    @Override
    public void validate(ConnectContext ctx) throws UserException {
        if (StringUtils.isEmpty(indexName)) {
            throw new AnalysisException("index name is excepted");
        }
        if (tableName != null) {
            tableName.analyze(ctx);
        }
    }

    @Override
    public AlterTableClause translateToLegacyAlterClause() {
        return new DropIndexClause(indexName, ifExists, tableName != null ? tableName.transferToTableName() : null,
                alter);
    }

    @Override
    public boolean allowOpMTMV() {
        return true;
    }

    @Override
    public boolean needChangeMTMVState() {
        return false;
    }

    @Override
    public String toSql() {
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("DROP INDEX ").append(indexName);
        if (!alter) {
            stringBuilder.append(" ON ").append(tableName != null ? tableName.toSql() : null);
        }
        return stringBuilder.toString();
    }
}