public override object VisitFromSimpleTable([NotNull] SQLiteParser.FromSimpleTableContext context)
{
SelectStmt.TableSample sample = null;
if (context.tablesample_clause() != null)
{
sample = VisitTablesample_clause(context.tablesample_clause()) as SelectStmt.TableSample;
}
return(new BaseTableRef(context.table_name().GetText(), context.table_alias()?.GetText(), sample));
}
public BaseTableRef(string name, string alias = null, SelectStmt.TableSample tableSample = null)
{
Debug.Assert(name != null);
relname_ = qpmodel.utils.Utils.normalizeName(name);
if (alias is null)
{
alias_ = relname_;
}
else
{
alias_ = qpmodel.utils.Utils.normalizeName(alias);
}
tableSample_ = tableSample;
}
public AnalyzeStmt(BaseTableRef target, string text,
SelectStmt.TableSample ts) : base(text)
{
// SELECT statement is used so later optimizations can be kicked in easier
targetref_ = target;
string sql = $"select * from {target.relname_} ";
if (ts != null)
{
sql += $" tablesample row ({ts.rowcnt_})";
}
select_ = RawParser.ParseSingleSqlStatement(sql) as SelectStmt;
// select_ is a different statement, binding their options
select_.queryOpt_ = queryOpt_;
}
