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sql 拆分优化

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This commit is contained in:
SwallowGG
2024-05-28 15:43:15 +08:00
parent 3675bc99a0
commit 4c600f7b53
6 changed files with 1045 additions and 8 deletions
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14
chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/builder/MysqlSqlBuilder.java
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@ -77,12 +77,14 @@ public class MysqlSqlBuilder extends DefaultSqlBuilder {
@Override
public String buildModifyTaleSql(Table oldTable, Table newTable) {
StringBuilder script = new StringBuilder();
script.append("ALTER TABLE ");
StringBuilder tableBuilder = new StringBuilder();
tableBuilder.append("ALTER TABLE ");
if (StringUtils.isNotBlank(oldTable.getDatabaseName())) {
script.append("`").append(oldTable.getDatabaseName()).append("`").append(".");
tableBuilder.append("`").append(oldTable.getDatabaseName()).append("`").append(".");
}
script.append("`").append(oldTable.getName()).append("`").append("\n");
tableBuilder.append("`").append(oldTable.getName()).append("`").append("\n");
StringBuilder script = new StringBuilder();
if (!StringUtils.equalsIgnoreCase(oldTable.getName(), newTable.getName())) {
script.append("\t").append("RENAME TO ").append("`").append(newTable.getName()).append("`").append(",\n");
}
@ -115,9 +117,11 @@ public class MysqlSqlBuilder extends DefaultSqlBuilder {
if (script.length() > 2) {
script = new StringBuilder(script.substring(0, script.length() - 2));
script.append(";");
return tableBuilder.append(script).toString();
}else {
return StringUtils.EMPTY;
}
return script.toString();
}