public static QsiColumnNode VisitWildcardParseNode(WildcardParseNode node)
{
var columnNode = new QsiAllColumnNode();
PTree.RawNode[columnNode] = node;
return(columnNode);
}
public static QsiColumnNode VisitTableWildcardParseNode(TableWildcardParseNode node)
{
var columnNode = new QsiAllColumnNode();
if (!string.IsNullOrEmpty(node.Name))
{
columnNode.Path = new QsiQualifiedIdentifier(IdentifierVisitor.Visit(node));
}
PTree.RawNode[columnNode] = node;
return(columnNode);
}
public static IQsiTreeNode VisitUpdateStmt(Update_stmtContext context)
{
var node = ImpalaTree.CreateWithSpan <QsiDataUpdateActionNode>(context);
var wildcard = new QsiAllColumnNode();
var targetTable = new QsiDerivedTableNode
{
Columns =
{
Value = new QsiColumnsDeclarationNode
{
Columns =
{
wildcard
}
}
}
};
if (context.from is not null)
{
if (context.target.children.Count != 1)
{
throw new QsiException(QsiError.SyntaxError, $"'{context.target.GetInputText()}' is not a valid table alias or reference.");
}
wildcard.Path = IdentifierVisitor.VisitDottedPath(context.target);
targetTable.Source.Value = TableVisitor.VisitFromClause(context.from);
}
else
{
targetTable.Source.Value = TableVisitor.VisitDottedPath(context.target);
}
if (context.where is not null)
{
targetTable.Where.Value = ExpressionVisitor.VisitWhereClause(context.where);
}
node.Target.Value = targetTable;
node.SetValues.AddRange(ExpressionVisitor.VisitUpdateSetExprList(context.values));
return(node);
}
public QsiActionNode VisitInsertSpecificiation(InsertSpecification insertSpecification)
{
var node = new QsiDataInsertActionNode();
var tableNode = TableVisitor.VisitTableReference(insertSpecification.Target);
if (tableNode is not QsiTableReferenceNode tableReferenceNode)
{
throw new QsiException(QsiError.Syntax);
}
node.Target.SetValue(tableReferenceNode);
if (!ListUtility.IsNullOrEmpty(insertSpecification.Columns))
{
node.Columns = insertSpecification.Columns
.Select(ExpressionVisitor.VisitColumnReferenceExpression)
.Select(c => c.Column.Value switch
{
QsiColumnReferenceNode columnReferenceNode => columnReferenceNode.Name,
QsiAllColumnNode allColumnNode => allColumnNode.Path,
_ => throw new QsiException(QsiError.Syntax)
})
