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!83 优化达梦查询表结构慢的问题

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Merge pull request !83 from Miracle/master
This commit is contained in:
阿妮亚
2025-07-17 05:19:02 +00:00
committed by Gitee
parent d80bae5403 44914c95cb
commit aa2f009d04
1 changed files with 9 additions and 3 deletions
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12
Src/Asp.NetCore2/SqlSugar/Realization/Dm/DbMaintenance/DmDbMaintenance.cs
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@@ -454,7 +454,7 @@ WHERE table_name = '" + tableName + "'");
{ {
List<DbColumnInfo> columns = GetOracleDbType(tableName); List<DbColumnInfo> columns = GetOracleDbType(tableName);
string sql = "select * from " + SqlBuilder.GetTranslationTableName(tableName) + " WHERE 1=2 "; string sql = "select * from " + SqlBuilder.GetTranslationTableName(tableName) + " WHERE 1=2 ";
if (!this.GetTableInfoList(false).Any(it => it.Name == SqlBuilder.GetTranslationTableName(tableName).TrimStart('\"').TrimEnd('\"'))) if(!this.IsAnyTable(SqlBuilder.GetTranslationTableName(tableName).TrimStart('\"').TrimEnd('\"'),false))
{ {
sql = "select * from \"" + tableName + "\" WHERE 1=2 "; sql = "select * from \"" + tableName + "\" WHERE 1=2 ";
} }
@@ -531,8 +531,14 @@ WHERE table_name = '" + tableName + "'");
on t2.table_name = t3.table_name and t2.index_name = t3.index_name on t2.table_name = t3.table_name and t2.index_name = t3.index_name
and t3.status = 'valid' and t3.uniqueness = 'unique') t4 --unique:唯一索引 and t3.status = 'valid' and t3.uniqueness = 'unique') t4 --unique:唯一索引
on t1.table_name = t4.table_name and t1.column_name = t4.column_name on t1.table_name = t4.table_name and t1.column_name = t4.column_name
left join user_col_comments t5 on t1.table_name = t5.table_name and t1.column_name = t5.column_name left join ( select *
left join user_tab_comments t6 on t1.table_name = t6.table_name from user_col_comments
where upper(table_name) = upper('{tableName}')
) t5 on t1.table_name = t5.table_name and t1.column_name = t5.column_name
left join ( select *
from user_tab_comments
where upper(table_name) = upper('{tableName}')
) t6 on t1.table_name = t6.table_name
where upper(t1.table_name)=upper('{tableName}') where upper(t1.table_name)=upper('{tableName}')
order by t1.table_name, t1.column_id"; order by t1.table_name, t1.column_id";