public static QsiTableNode VisitDmlStatement(DmlStatementContext context)
{
if (context.selectStatement() != null)
{
return(VisitSelectStatement(context.selectStatement()));
}
return(null);
}
public List <Statement> ParseDmlStatement(DmlStatementContext node)
{
List <Statement> statements = new List <Statement>();
foreach (var child in node.children)
{
if (child is InsertStatementContext insert)
{
InsertStatement statement = this.ParseInsertStatement(insert);
statements.Add(statement);
}
else if (child is DeleteStatementContext delete)
{
statements.AddRange(this.ParseDeleteStatement(delete));
}
else if (child is UpdateStatementContext update)
{
statements.Add(this.ParseUpdateStatement(update));
}
else if (child is SimpleSelectContext selectContext)
{
SelectStatement statement = this.ParseSelectStatement(selectContext);
statements.Add(statement);
}
else if (child is CallStatementContext call)
{
statements.Add(this.ParseCallStatement(call));
}
else if (child is UnionSelectContext union)
{
statements.Add(this.ParseUnionSelect(union));
}
}
return(statements);
}
public static IQueryPlanner VisitDmlStatementContext(DmlStatementContext context)
{
if (context.children.Count == 0)
{
return(null);
}
switch (context.children[0])
{
case SelectStatementContext selectStatementContext:
return(new SelectPlanner(VisitSelectStatement(selectStatementContext)));
case InsertStatementContext insertStatementContext:
return(new InsertPlanner(VisitInsertStatement(insertStatementContext)));
case UpdateStatementContext updateStatementContext:
return(new UpdatePlanner(VisitUpdateStatement(updateStatementContext)));
case DeleteStatementContext deleteStatementContext:
return(new DeletePlanner(VisitDeleteStatement(deleteStatementContext)));
}
return(VisitorHelper.ThrowNotSupportedContext <IQueryPlanner>((ParserRuleContext)context.children[0]));
}
