public static ITableSource VisitTableSourceBase(TableSourceItemContext context)
{
IPart[] identifiers = IdentifierUtility.Parse(context.tableName().GetText());
ValidateTableWithIndexName(identifiers);
return(new AtomTableSource(
identifiers[0].ToString(),
identifiers.Length == 2 ? identifiers[1].ToString() : string.Empty
));
}
public List <FromItem> ParseTableSources(TableSourcesContext node)
{
List <FromItem> fromItems = new List <FromItem>();
TableSourceContext[] tables = node.tableSource();
foreach (TableSourceContext table in tables)
{
if (table is TableSourceBaseContext tb)
{
TableSourceItemContext tsi = tb.tableSourceItem();
FromItem fromItem = new FromItem();
if (tsi is SubqueryTableItemContext subquery)
{
fromItem.SubSelectStatement = this.ParseSelectStatement(subquery.selectStatement());
UidContext uid = subquery.uid();
if (uid != null)
{
fromItem.Alias = new TokenInfo(uid)
{
Type = TokenType.Alias
};
}
}
else
{
TableName tableName = this.ParseTableName(tsi);
fromItem.TableName = tableName;
JoinPartContext[] joins = tb.joinPart();
if (joins != null && joins.Length > 0)
{
foreach (JoinPartContext join in joins)
{
JoinItem joinItem = this.ParseJoin(join);
fromItem.JoinItems.Add(joinItem);
}
}
}
fromItems.Add(fromItem);
}
}
return(fromItems);
}
public static QsiTableNode VisitTableSourceItem(TableSourceItemContext context)
{
switch (context)
{
case AtomTableItemContext atomTableItemContext:
return(VisitAtomTableItem(atomTableItemContext));
case SubqueryTableItemContext subqueryTableItemContext:
return(VisitSubqueryTableItem(subqueryTableItemContext));
}
throw TreeHelper.NotSupportedTree(context);
}
public static QsiTableNode VisitTableSourceItem(TableSourceItemContext context)
{
return(VisitTableName(context.tableName()));
}