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- 优化 MySql CodeFirst 索引的建立 ；#498

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This commit is contained in:
2881099
2020-10-22 16:52:53 +08:00
parent 698ace9674
commit 1fc4c9c46e
4 changed files with 21 additions and 20 deletions
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18
Providers/FreeSql.Provider.MySql/MySqlCodeFirst.cs
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@ -151,25 +151,25 @@ namespace FreeSql.MySql
foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
sb.Remove(sb.Length - 2, 2).Append("),");
}
sb.Remove(sb.Length - 1, 1);
sb.Append("\r\n) Engine=InnoDB");
if (string.IsNullOrEmpty(tb.Comment) == false)
sb.Append(" Comment=").Append(_commonUtils.FormatSql("{0}", tb.Comment));
sb.Append(";\r\n");
//创建表的索引
//创建表的索引，感谢 @mafeng8，这样写可以支持自增不是主键的情况
foreach (var uk in tb.Indexes)
{
sb.Append("CREATE ");
sb.Append(" \r\n ");
if (uk.IsUnique) sb.Append("UNIQUE ");
sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(ReplaceIndexName(uk.Name, tbname[1]))).Append(" ON ").Append(createTableName).Append("(");
sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(ReplaceIndexName(uk.Name, tbname[1]))).Append("(");
foreach (var tbcol in uk.Columns)
{
sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
if (tbcol.IsDesc) sb.Append(" DESC");
sb.Append(", ");
}
sb.Remove(sb.Length - 2, 2).Append(");\r\n");
sb.Remove(sb.Length - 2, 2).Append("),");
}
sb.Remove(sb.Length - 1, 1);
sb.Append("\r\n) Engine=InnoDB");
if (string.IsNullOrEmpty(tb.Comment) == false)
sb.Append(" Comment=").Append(_commonUtils.FormatSql("{0}", tb.Comment));
sb.Append(";\r\n");
continue;
}
//如果新表，旧表在一个数据库下，直接修改表名