tk/FreeSql
1
0
Fork 0
mirror of https://github.com/nsnail/FreeSql.git synced 2025-06-19 04:18:16 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge main branches

Browse Source
This commit is contained in:
igeekfan
2022-05-20 03:16:13 +08:00
parent ba2582b8d1 376862c1bd
commit 747603dbb6
121 changed files with 1110 additions and 709 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
Providers/FreeSql.Provider.Odbc/Dameng/Curd/OdbcDamengSelect.cs
View File

@ -22,40 +22,40 @@ namespace FreeSql.Odbc.Dameng
tb.Cascade = _commonExpression.GetWhereCascadeSql(tb, _whereGlobalFilter, true);
var sb = new StringBuilder();
var sbunion = new StringBuilder();
var sbnav = new StringBuilder();
var tbUnionsGt0 = tbUnions.Count > 1;
for (var tbUnionsIdx = 0; tbUnionsIdx < tbUnions.Count; tbUnionsIdx++)
{
if (tbUnionsIdx > 0) sb.Append("\r\n \r\nUNION ALL\r\n \r\n");
if (tbUnionsGt0) sb.Append(_select).Append(" * from (");
var tbUnion = tbUnions[tbUnionsIdx];
var sbnav = new StringBuilder();
sb.Append(_select);
if (_distinct) sb.Append("DISTINCT ");
sb.Append(field);
if (string.IsNullOrEmpty(_orderby) && _skip > 0) sb.Append(", ROWNUM AS \"__rownum__\"");
sb.Append(" \r\nFROM ");
sbunion.Append(_select);
if (_distinct) sbunion.Append("DISTINCT ");
sbunion.Append(field);
if (string.IsNullOrEmpty(_orderby) && _skip > 0) sbunion.Append(", ROWNUM AS \"__rownum__\"");
sbunion.Append(" \r\nFROM ");
var tbsjoin = _tables.Where(a => a.Type != SelectTableInfoType.From).ToArray();
var tbsfrom = _tables.Where(a => a.Type == SelectTableInfoType.From).ToArray();
for (var a = 0; a < tbsfrom.Length; a++)
{
sb.Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[a].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[a].Table.Type, tbsfrom[a].Alias) ?? tbsfrom[a].Alias);
sbunion.Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[a].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[a].Table.Type, tbsfrom[a].Alias) ?? tbsfrom[a].Alias);
if (tbsjoin.Length > 0)
{
//如果存在 join 查询，则处理 from t1, t2 改为 from t1 inner join t2 on 1 = 1
for (var b = 1; b < tbsfrom.Length; b++)
{
sb.Append(" \r\nLEFT JOIN ").Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[b].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[b].Table.Type, tbsfrom[b].Alias) ?? tbsfrom[b].Alias);
sbunion.Append(" \r\nLEFT JOIN ").Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[b].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[b].Table.Type, tbsfrom[b].Alias) ?? tbsfrom[b].Alias);
if (string.IsNullOrEmpty(tbsfrom[b].NavigateCondition) && string.IsNullOrEmpty(tbsfrom[b].On) && string.IsNullOrEmpty(tbsfrom[b].Cascade)) sb.Append(" ON 1 = 1");
if (string.IsNullOrEmpty(tbsfrom[b].NavigateCondition) && string.IsNullOrEmpty(tbsfrom[b].On) && string.IsNullOrEmpty(tbsfrom[b].Cascade)) sbunion.Append(" ON 1 = 1");
else
{
var onSql = tbsfrom[b].NavigateCondition ?? tbsfrom[b].On;
sb.Append(" ON ").Append(onSql);
sbunion.Append(" ON ").Append(onSql);
if (string.IsNullOrEmpty(tbsfrom[b].Cascade) == false)
{
if (string.IsNullOrEmpty(onSql)) sb.Append(tbsfrom[b].Cascade);
else sb.Append(" AND ").Append(tbsfrom[b].Cascade);
if (string.IsNullOrEmpty(onSql)) sbunion.Append(tbsfrom[b].Cascade);
else sbunion.Append(" AND ").Append(tbsfrom[b].Cascade);
}
}
}
@ -67,28 +67,30 @@ namespace FreeSql.Odbc.Dameng
if (!string.IsNullOrEmpty(tbsfrom[a].On)) sbnav.Append(" AND (").Append(tbsfrom[a].On).Append(")");
if (a > 0 && !string.IsNullOrEmpty(tbsfrom[a].Cascade)) sbnav.Append(" AND ").Append(tbsfrom[a].Cascade);
}
if (a < tbsfrom.Length - 1) sb.Append(", ");
if (a < tbsfrom.Length - 1) sbunion.Append(", ");
}
foreach (var tb in tbsjoin)
{
if (tb.Type == SelectTableInfoType.Parent) continue;
switch (tb.Type)
{
case SelectTableInfoType.Parent:
case SelectTableInfoType.RawJoin:
continue;
case SelectTableInfoType.LeftJoin:
sb.Append(" \r\nLEFT JOIN ");
sbunion.Append(" \r\nLEFT JOIN ");
break;
case SelectTableInfoType.InnerJoin:
sb.Append(" \r\nINNER JOIN ");
sbunion.Append(" \r\nINNER JOIN ");
break;
case SelectTableInfoType.RightJoin:
sb.Append(" \r\nRIGHT JOIN ");
sbunion.Append(" \r\nRIGHT JOIN ");
break;
}
sb.Append(_commonUtils.QuoteSqlName(tbUnion[tb.Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tb.Table.Type, tb.Alias) ?? tb.Alias).Append(" ON ").Append(tb.On ?? tb.NavigateCondition);
if (!string.IsNullOrEmpty(tb.Cascade)) sb.Append(" AND ").Append(tb.Cascade);
sbunion.Append(_commonUtils.QuoteSqlName(tbUnion[tb.Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tb.Table.Type, tb.Alias) ?? tb.Alias).Append(" ON ").Append(tb.On ?? tb.NavigateCondition);
if (!string.IsNullOrEmpty(tb.Cascade)) sbunion.Append(" AND ").Append(tb.Cascade);
if (!string.IsNullOrEmpty(tb.On) && !string.IsNullOrEmpty(tb.NavigateCondition)) sbnav.Append(" AND (").Append(tb.NavigateCondition).Append(")");
}
if (_join.Length > 0) sb.Append(_join);
if (_join.Length > 0) sbunion.Append(_join);
sbnav.Append(_where);
if (!string.IsNullOrEmpty(_tables[0].Cascade))
@ -97,31 +99,39 @@ namespace FreeSql.Odbc.Dameng
if (string.IsNullOrEmpty(_orderby) && (_skip > 0 || _limit > 0))
sbnav.Append(" AND ROWNUM < ").Append(_skip + _limit + 1);
if (sbnav.Length > 0)
sb.Append(" \r\nWHERE ").Append(sbnav.Remove(0, 5));
sbunion.Append(" \r\nWHERE ").Append(sbnav.Remove(0, 5));
if (string.IsNullOrEmpty(_groupby) == false)
{
sb.Append(_groupby);
sbunion.Append(_groupby);
if (string.IsNullOrEmpty(_having) == false)
sb.Append(" \r\nHAVING ").Append(_having.Substring(5));
sbunion.Append(" \r\nHAVING ").Append(_having.Substring(5));
}
sb.Append(_orderby);
sbunion.Append(_orderby);
if (string.IsNullOrEmpty(_orderby))
{
if (_skip > 0)
sb.Insert(0, $"{_select} t.* FROM (").Append(") t WHERE t.\"__rownum__\" > ").Append(_skip);
sbunion.Insert(0, $"{_select}t.* FROM (").Append(") t WHERE t.\"__rownum__\" > ").Append(_skip);
}
else
{
if (_skip > 0 && _limit > 0) sb.Insert(0, $"{_select} t.* FROM (SELECT rt.*, ROWNUM AS \"__rownum__\" FROM (").Append(") rt WHERE ROWNUM < ").Append(_skip + _limit + 1).Append(") t WHERE t.\"__rownum__\" > ").Append(_skip);
else if (_skip > 0) sb.Insert(0, $"{_select} t.* FROM (").Append(") t WHERE ROWNUM > ").Append(_skip);
else if (_limit > 0) sb.Insert(0, $"{_select} t.* FROM (").Append(") t WHERE ROWNUM < ").Append(_limit + 1);
if (_skip > 0 && _limit > 0) sbunion.Insert(0, $"{_select}t.* FROM (SELECT rt.*, ROWNUM AS \"__rownum__\" FROM (").Append(") rt WHERE ROWNUM < ").Append(_skip + _limit + 1).Append(") t WHERE t.\"__rownum__\" > ").Append(_skip);
else if (_skip > 0) sbunion.Insert(0, $"{_select}t.* FROM (").Append(") t WHERE ROWNUM > ").Append(_skip);
else if (_limit > 0) sbunion.Insert(0, $"{_select}t.* FROM (").Append(") t WHERE ROWNUM < ").Append(_limit + 1);
}
if (tbUnionsGt0) sbunion.Insert(0, $"{_select}* from (").Append(") ftb");
sb.Append(sbunion);
sbnav.Clear();
if (tbUnionsGt0) sb.Append(") ftb");
sbunion.Clear();
}
return sb.Append(_tosqlAppendContent).ToString();
var sql = sb.Append(_tosqlAppendContent).ToString();
var aliasGreater30 = 0;
foreach (var tb in _tables)
if (tb.Alias.Length > 30) sql = sql.Replace(tb.Alias, $"than30_{aliasGreater30++}");
return sql;
}
public OdbcDamengSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }