public SqlUnion(SelectQuery selectQuery, bool isAll)
{
SelectQuery = selectQuery;
IsAll = isAll;
}
/// <summary>
/// Returns HirarchyInfo for specific selectQuery
/// </summary>
/// <param name="selectQuery"></param>
/// <returns></returns>
public HierarchyInfo GetHierarchyInfo(SelectQuery selectQuery)
{
CheckInitialized();
_parents.TryGetValue(selectQuery, out var result);
return(result);
}
internal SqlSelectClause(SelectQuery selectQuery) : base(selectQuery)
{
}
public SelectQueryOptimizer(SqlProviderFlags flags, SelectQuery selectQuery)
{
_flags = flags;
_selectQuery = selectQuery;
}
/// <summary>
/// Returns parent query if query is subquery for select
/// </summary>
/// <param name="selectQuery"></param>
/// <returns></returns>
public SelectQuery GetParentQuery(SelectQuery selectQuery)
{
var info = GetHierarchyInfo(selectQuery);
return(info?.HierarchyType == HierarchyType.From ? info.MasterQuery : null);
}
internal SqlOrderByClause(SelectQuery selectQuery) : base(selectQuery)
{
}
public SqlColumn(SelectQuery builder, ISqlExpression expression)
: this(builder, expression, null)
{
}
public static SqlFromClause.Join OuterApply(this ISqlTableSource table, params SqlFromClause.Join[] joins)
{
return(SelectQuery.OuterApply(table, joins));
}
public static SqlFromClause.Join WeakLeftJoin(this ISqlTableSource table, params SqlFromClause.Join[] joins)
{
return(SelectQuery.WeakLeftJoin(table, joins));
}
public override StringBuilder ToString(StringBuilder sb, Dictionary <IQueryElement, IQueryElement> dic)
{
return(SelectQuery.ToString(sb, dic));
}
public SqlSelectStatement(SelectQuery selectQuery) : base(selectQuery)
{
}
protected override void Walk(WalkOptions options, Func <ISqlExpression, ISqlExpression> func)
{
base.Walk(options, func);
SubQuery = (SelectQuery)((ISqlExpression)SubQuery).Walk(options, func) !;
}
public InSubQuery(ISqlExpression exp1, bool isNot, SelectQuery subQuery)
: base(exp1, isNot, SqlQuery.Precedence.Comparison)
{
SubQuery = subQuery;
}
internal SqlFromClause(SelectQuery selectQuery) : base(selectQuery)
{
}
internal SqlWhereClause(SelectQuery selectQuery) : base(selectQuery)
{
SearchCondition = new SqlSearchCondition();
}
public static SqlFromClause.Join WeakJoin(this ISqlTableSource table, string alias, params SqlFromClause.Join[] joins)
{
return(SelectQuery.WeakJoin(table, alias, joins));
}
public static SqlFunction CreateAny(SelectQuery subQuery)
{
return(new SqlFunction(typeof(bool), "ANY", false, SqlQuery.Precedence.Comparison, subQuery));
}
public HierarchyInfo(SelectQuery masterQuery, HierarchyType hierarchyType, IQueryElement parentElement)
{
MasterQuery = masterQuery;
HierarchyType = hierarchyType;
ParentElement = parentElement;
}
void Visit2X(SelectQuery q)
{
Visit2(q.Select);
// Visit2(q.From);
//
if (q.From != null && (_all || !_visitedElements.ContainsKey(q.From)))
{
foreach (var t in q.From.Tables)
{
//Visit2(t);
//
if (t != null && (_all || !_visitedElements.ContainsKey(t)))
{
Visit2(t.Source);
foreach (var j in t.Joins)
{
Visit2(j);
}
_action2 !(t);
if (!_all && !_visitedElements.ContainsKey(t))
{
_visitedElements.Add(t, t);
}
}
}
_action2 !(q.From);
if (!_all && !_visitedElements.ContainsKey(q.From))
{
_visitedElements.Add(q.From, q.From);
}
}
Visit2(q.Where);
Visit2(q.GroupBy);
Visit2(q.Having);
Visit2(q.OrderBy);
if (q.HasSetOperators)
{
foreach (var i in q.SetOperators)
{
if (i.SelectQuery == q)
{
throw new InvalidOperationException();
}
Visit2(i);
}
}
// decided to do not enumerate unique keys
// if (q.HasUniqueKeys)
// foreach (var keyList in q.UniqueKeys)
// {
// Visit2X(keyList);
// }
}
/// <summary>
/// This is internal API and is not intended for use by Linq To DB applications.
/// It may change or be removed without further notice.
/// </summary>
public QueryInformation([NotNull] SelectQuery rootQuery)
{
_rootQuery = rootQuery ?? throw new ArgumentNullException(nameof(rootQuery));
}
internal SqlGroupByClause(SelectQuery selectQuery) : base(selectQuery)
{
}
protected override void Walk(bool skipColumns, Func <ISqlExpression, ISqlExpression> func)
{
base.Walk(skipColumns, func);
SubQuery = (SelectQuery)((ISqlExpression)SubQuery).Walk(skipColumns, func);
}
