private void ReplaceWithCountFunc(SelectStmt stmt)
{
if (stmt.Query.Type == QueryType.Compound)
{
// メインクエリが複合クエリの場合はSELECT COUNT(*)文でラッピングする
// (複合クエリのOrderBy句は変換処理なしにSELECT COUNT(*)のOrderByに使える)
var singleQueryClause = SingleQuery.WrapInSelectStar(new AliasedQuery((IQueryClause)stmt.Query, false, "COUNT_"));
// Limit句にはColumnを指定できないので変換処理は必要ない
var singleQuery = new SingleQuery(singleQueryClause, stmt.Query.OrderBy, stmt.Query.Limit);
stmt.Query = singleQuery;
}
this.ReplaceWithCountFunc((IQueryClause)stmt.Query);
}
virtual public void VisitAfter(SelectStmt selectStmt)
{
}
// Statements
virtual public void VisitBefore(SelectStmt selectStmt)
{
}
public void VisitAfter(SelectStmt selectStmt)
{
_visitor.VisitAfter(selectStmt);
}
// Statements
public void VisitBefore(SelectStmt selectStmt)
{
_visitor.VisitBefore(selectStmt);
}
