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- 增加 lambda 表达式树解析子查询 ToList + string.Join() 产生 类似 group_concat 的效果（适配了 sqlserver/pgsql/oracle/mysql/sqlite/达梦/金仓) #405；

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This commit is contained in:
28810
2020-08-08 16:18:10 +08:00
parent 1a8c7ce86d
commit b3ec6cdf8d
30 changed files with 614 additions and 17 deletions
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4
FreeSql/Internal/CommonExpression.cs
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@ -1060,6 +1060,7 @@ namespace FreeSql.Internal
case "Max":
case "Avg":
var tscClone1 = tsc.CloneDisableDiyParse();
tscClone1.subSelect001 = fsql as Select0Provider; //#405 Oracle within group(order by ..)
tscClone1.isDisableDiyParse = false;
tscClone1._tables = fsqltables;
var sqlSum = fsqlType.GetMethod("ToSql", new Type[] { typeof(string) })?.Invoke(fsql, new object[] { $"{exp3.Method.Name.ToLower()}({ExpressionLambdaToSql(exp3.Arguments.FirstOrDefault(), tscClone1)})" })?.ToString();
@ -1070,6 +1071,7 @@ namespace FreeSql.Internal
case "ToOne":
case "First":
var tscClone2 = tsc.CloneDisableDiyParse();
tscClone2.subSelect001 = fsql as Select0Provider; //#405 Oracle within group(order by ..)
tscClone2.isDisableDiyParse = false;
tscClone2._tables = fsqltables;
var sqlFirst = fsqlType.GetMethod("ToSql", new Type[] { typeof(string) })?.Invoke(fsql, new object[] { ExpressionLambdaToSql(exp3.Arguments.FirstOrDefault(), tscClone2) })?.ToString();
@ -1443,6 +1445,7 @@ namespace FreeSql.Internal
public List<SelectTableInfo> _tables { get; set; }
public List<SelectColumnInfo> _selectColumnMap { get; set; }
public SelectGroupingProvider grouping { get; set; }
public Select0Provider subSelect001 { get; set; } //#405 Oracle within group(order by ..)
public SelectTableInfoType tbtype { get; set; }
public bool isQuoteName { get; set; }
public bool isDisableDiyParse { get; set; }
@ -1509,6 +1512,7 @@ namespace FreeSql.Internal
_tables = this._tables,
_selectColumnMap = this._selectColumnMap,
grouping = this.grouping,
subSelect001 = this.subSelect001,
tbtype = this.tbtype,
isQuoteName = this.isQuoteName,
isDisableDiyParse = true,