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Simplify the update and delete statements for query results when the table contains primary keys

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This commit is contained in:
SwallowGG
2023-11-02 23:41:30 +08:00
parent d545085d9c
commit 14461ed59d
2 changed files with 85 additions and 29 deletions
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110
chat2db-server/chat2db-server-domain/chat2db-server-domain-core/src/main/java/ai/chat2db/server/domain/core/impl/DlTemplateServiceImpl.java
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@ -6,11 +6,14 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import ai.chat2db.server.domain.api.param.*;
import ai.chat2db.server.domain.api.param.operation.OperationLogCreateParam;
import ai.chat2db.server.domain.api.service.OperationLogService;
import ai.chat2db.server.domain.api.service.TableService;
import ai.chat2db.spi.MetaData;
import ai.chat2db.spi.model.TableIndex;
import ai.chat2db.spi.sql.ConnectInfo;
import com.alibaba.druid.DbType;
import com.alibaba.druid.sql.PagerUtils;
@ -37,6 +40,7 @@ import ai.chat2db.spi.util.SqlUtils;
import com.google.common.collect.Lists;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@ -53,6 +57,9 @@ public class DlTemplateServiceImpl implements DlTemplateService {
@Autowired
private OperationLogService operationLogService;
@Autowired
private TableService tableService;
@Override
public ListResult<ExecuteResult> execute(DlExecuteParam param) {
if (StringUtils.isBlank(param.getSql())) {
@ -246,19 +253,20 @@ public class DlTemplateServiceImpl implements DlTemplateService {
public DataResult<String> updateSelectResult(UpdateSelectResultParam param) {
StringBuilder stringBuilder = new StringBuilder();
MetaData metaSchema = Chat2DBContext.getMetaData();
List<String> keyColumns = getPrimaryColumns(param);
for (int i = 0; i < param.getOperations().size(); i++) {
SelectResultOperation operation = param.getOperations().get(i);
List<String> row = operation.getDataList();
List<String> odlRow = operation.getOldDataList();
String sql = "";
if ("UPDATE".equalsIgnoreCase(operation.getType())) {
sql = getUpdateSql(param, row, odlRow, metaSchema);
sql = getUpdateSql(param, row, odlRow, metaSchema,keyColumns,false);
} else if ("CREATE".equalsIgnoreCase(operation.getType())) {
sql = getInsertSql(param, row, metaSchema);
} else if ("DELETE".equalsIgnoreCase(operation.getType())) {
sql = getDeleteSql(param, odlRow, metaSchema);
sql = getDeleteSql(param, odlRow, metaSchema,keyColumns);
} else if ("UPDATE_COPY".equalsIgnoreCase(operation.getType())) {
sql = getUpdateSql(param, row, row, metaSchema,keyColumns,true);
}
stringBuilder.append(sql + ";\n");
@ -266,38 +274,76 @@ public class DlTemplateServiceImpl implements DlTemplateService {
return DataResult.of(stringBuilder.toString());
}
private String getDeleteSql(UpdateSelectResultParam param, List<String> row, MetaData metaSchema) {
private List<String> getPrimaryColumns(UpdateSelectResultParam param){
TableQueryParam tableQueryParam = new TableQueryParam();
tableQueryParam.setTableName(param.getTableName());
tableQueryParam.setSchemaName(param.getSchemaName());
tableQueryParam.setDatabaseName(param.getDatabaseName());
List<TableIndex> tableIndices = tableService.queryIndexes(tableQueryParam);
if(!CollectionUtils.isEmpty(tableIndices)) {
return tableIndices.stream()
.filter(tableIndex -> "PRIMARY".equalsIgnoreCase(tableIndex.getType()))
.map(tableIndex -> {
if(!CollectionUtils.isEmpty(tableIndex.getColumnList())) {
return tableIndex.getColumnList().get(0).getColumnName();
}
return null;
}).collect(Collectors.toList());
}
return Lists.newArrayList();
}
private String getDeleteSql(UpdateSelectResultParam param, List<String> row, MetaData metaSchema,List<String> keyColumns) {
StringBuilder script = new StringBuilder();
script.append("DELETE FROM ").append(param.getTableName()).append("");
script.append(buildWhere(param.getHeaderList(), row, metaSchema));
script.append(buildWhere(param.getHeaderList(), row, metaSchema,keyColumns));
return script.toString();
}
private String buildWhere(List<Header> headerList, List<String> row, MetaData metaSchema) {
private String buildWhere(List<Header> headerList, List<String> row, MetaData metaSchema,List<String> keyColumns) {
StringBuilder script = new StringBuilder();
script.append(" where ");
for (int i = 1; i < row.size(); i++) {
String oldValue = row.get(i);
Header header = headerList.get(i);
String value = SqlUtils.getSqlValue(oldValue, header.getDataType());
if (value == null) {
script.append(metaSchema.getMetaDataName(header.getName()))
.append(" is null and ");
} else {
script.append(metaSchema.getMetaDataName(header.getName()))
.append(" = ")
.append(value)
.append(" and ");
if(CollectionUtils.isEmpty(keyColumns)) {
for (int i = 1; i < row.size(); i++) {
String oldValue = row.get(i);
Header header = headerList.get(i);
String value = SqlUtils.getSqlValue(oldValue, header.getDataType());
if (value == null) {
script.append(metaSchema.getMetaDataName(header.getName()))
.append(" is null and ");
} else {
script.append(metaSchema.getMetaDataName(header.getName()))
.append(" = ")
.append(value)
.append(" and ");
}
}
}else{
for (int i = 1; i < row.size(); i++) {
String oldValue = row.get(i);
Header header = headerList.get(i);
String columnName = header.getName();
if(keyColumns.contains(columnName)) {
String value = SqlUtils.getSqlValue(oldValue, header.getDataType());
if (value == null) {
script.append(metaSchema.getMetaDataName(columnName))
.append(" is null and ");
} else {
script.append(metaSchema.getMetaDataName(columnName))
.append(" = ")
.append(value)
.append(" and ");
}
}
}
}
script.delete(script.length() - 4, script.length());
return script.toString();
}
private String getInsertSql(UpdateSelectResultParam param, List<String> row, MetaData metaSchema) {
if (CollectionUtils.isEmpty(row)) {
if (CollectionUtils.isEmpty(row) || ObjectUtils.allNull(row.toArray())) {
return "";
}
StringBuilder script = new StringBuilder();
@ -305,16 +351,21 @@ public class DlTemplateServiceImpl implements DlTemplateService {
.append(" (");
for (int i = 1; i < row.size(); i++) {
Header header = param.getHeaderList().get(i);
script.append(metaSchema.getMetaDataName(header.getName()))
.append(",");
String newValue = row.get(i);
if(newValue!=null) {
script.append(metaSchema.getMetaDataName(header.getName()))
.append(",");
}
}
script.deleteCharAt(script.length() - 1);
script.append(") VALUES (");
for (int i = 1; i < row.size(); i++) {
String newValue = row.get(i);
Header header = param.getHeaderList().get(i);
script.append(SqlUtils.getSqlValue(newValue, header.getDataType()))
.append(",");
if(newValue!=null) {
Header header = param.getHeaderList().get(i);
script.append(SqlUtils.getSqlValue(newValue, header.getDataType()))
.append(",");
}
}
script.deleteCharAt(script.length() - 1);
script.append(")");
@ -323,7 +374,8 @@ public class DlTemplateServiceImpl implements DlTemplateService {
}
private String getUpdateSql(UpdateSelectResultParam param, List<String> row, List<String> odlRow, MetaData metaSchema) {
private String getUpdateSql(UpdateSelectResultParam param, List<String> row, List<String> odlRow, MetaData metaSchema,
List<String> keyColumns,boolean copy){
StringBuilder script = new StringBuilder();
if (CollectionUtils.isEmpty(row) || CollectionUtils.isEmpty(odlRow)) {
return "";
@ -332,7 +384,7 @@ public class DlTemplateServiceImpl implements DlTemplateService {
for (int i = 1; i < row.size(); i++) {
String newValue = row.get(i);
String oldValue = odlRow.get(i);
if (StringUtils.equals(newValue, oldValue)) {
if (StringUtils.equals(newValue, oldValue) && !copy) {
continue;
}
Header header = param.getHeaderList().get(i);
@ -343,7 +395,7 @@ public class DlTemplateServiceImpl implements DlTemplateService {
.append(",");
}
script.deleteCharAt(script.length() - 1);
script.append(buildWhere(param.getHeaderList(), odlRow, metaSchema));
script.append(buildWhere(param.getHeaderList(), odlRow, metaSchema,keyColumns));
return script.toString();
}