protected void Join(SqlQueryStatement statement, SqlSelect select)
{
if (select.HasLimit)
{
JoinWhenQueryHasLimitation(statement, select);
}
else
{
JoinWhenQueryHasNoLimitation(statement, select);
}
}
public static SetStatement Create(SqlQueryStatement statement)
{
SetStatement result;
if (statement is SqlUpdate)
{
result = new Update();
}
else if (statement is SqlInsert)
{
result = new Insert();
}
else
{
throw new InvalidOperationException("Statement must be SqlUpdate or SqlInsert");
}
result.statement = statement;
return(result);
}
private static SqlJoinHint TryFindJoinHint(SqlCompilerContext context, SqlJoinExpression node)
{
SqlQueryStatement statement = null;
for (int i = 0, count = context.GetTraversalPath().Length; i < count; i++)
{
if (context.GetTraversalPath()[i] is SqlQueryStatement)
{
statement = context.GetTraversalPath()[i] as SqlQueryStatement;
}
}
if (statement == null || statement.Hints.Count == 0)
{
return(null);
}
var candidate = statement.Hints
.OfType <SqlJoinHint>()
.FirstOrDefault(hint => hint.Table == node.Right);
return(candidate);
}
