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63 lines
2.1 KiB
63 lines
2.1 KiB
3 months ago
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package com.guozhi.bloodanalysis.parser.common;
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import java.util.List;
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import com.guozhi.bloodanalysis.parser.vo.KColumn;
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import com.guozhi.bloodanalysis.parser.vo.VTable;
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import gudusoft.gsqlparser.nodes.TAlterTableOptionList;
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import gudusoft.gsqlparser.nodes.TObjectName;
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import gudusoft.gsqlparser.stmt.TAlterTableStatement;
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import org.springframework.context.annotation.Bean;
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import org.springframework.stereotype.Component;
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/**
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* Created by Walk.Lai on 2015/8/29.
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*/
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public class AlterParser {
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private TAlterTableStatement mStmt;//table, view
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private List<KColumn> mColumns;
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private VTable mTable;
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private ParserContext mParserContext;
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public AlterParser(TAlterTableStatement alterSql,ParserContext context){
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mStmt =alterSql;
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this.mParserContext=context;
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}
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public void parse() {
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//alter table exchange partition with table
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// --将新数据以交换分区方式插入目标表
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// ALTER TABLE IML_DB.EV_EVENT_PROD_RELA EXCHANGE SUBPARTITION P_1008_1111 WITH TABLE IML_DB.VT_NEW_1008;
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/*
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例如 ALTER TABLE $PDM_SCH.PD_BCC_3F_TRAN_INFO RENAME TO PD_BCC_3F_TRAN_INFO_EXCHANGE2;
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ALTER TABLE $PDM_SCH.PD_BCC_3F_TRAN_INFO_EXCHANGE RENAME TO PD_BCC_3F_TRAN_INFO;
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tempTable -- $PDM_SCH.PD_BCC_3F_TRAN_INFO_EXCHANGE
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targetTable -- PD_BCC_3F_TRAN_INFO
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*/
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String tempTableName = null;
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String targetTableName = null;
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TObjectName obj = mStmt.getTableName();
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if (obj!=null) {
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tempTableName = obj.toString();
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}
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TAlterTableOptionList oplist = mStmt.getAlterTableOptionList();
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if (oplist!=null) {
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for (int i = 0; i < oplist.size(); i++) {
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String option = oplist.getAlterTableOption(i).toString();
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if (option.contains("RENAME")&&option.contains(" TO ")) {
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targetTableName = option.substring(option.indexOf(" TO ")+" TO ".length()).trim();
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targetTableName = targetTableName.replace("SYMBOLALTERPOINT", ".");
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// targetTableName = this.addAlterSchema(tempTableName,targetTableName);
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break;
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}
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}
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}
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}
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public List<KColumn> getParseResult() {
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return null;
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}
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}
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