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- 优化 MySql StringLength/MaxLength -2 产生 LongText 映射；

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28810
2020-06-06 19:02:41 +08:00
parent 926d8353c1
commit b9948f4508
17 changed files with 311 additions and 165 deletions
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2
Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleCodeFirst.cs
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@ -309,7 +309,7 @@ and not exists(select 1 from all_constraints where constraint_name = a.index_nam
}
var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select constraint_name from user_constraints where owner={0} and table_name={1} and constraint_type='P'", tbname))?.ToString();
if (string.IsNullOrEmpty(oldpk) == false)
sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append("';\r\n");
sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(_commonUtils.QuoteSqlName(oldpk)).Append("';\r\n");
//创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");