protected override NodeInfo VisitGroupByOp(GroupByBaseOp op, Node n)
{
ExtendedNodeInfo extendedNodeInfo1 = this.InitExtendedNodeInfo(n);
ExtendedNodeInfo extendedNodeInfo2 = this.GetExtendedNodeInfo(n.Child0);
extendedNodeInfo1.Definitions.InitFrom(op.Outputs);
extendedNodeInfo1.LocalDefinitions.InitFrom(extendedNodeInfo1.Definitions);
extendedNodeInfo1.ExternalReferences.Or(extendedNodeInfo2.ExternalReferences);
foreach (Node child in n.Child1.Children)
{
NodeInfo nodeInfo = this.GetNodeInfo(child.Child0);
extendedNodeInfo1.ExternalReferences.Or(nodeInfo.ExternalReferences);
if (NodeInfoVisitor.IsDefinitionNonNullable(child.Child0, extendedNodeInfo2.NonNullableDefinitions))
{
extendedNodeInfo1.NonNullableDefinitions.Set(((VarDefOp)child.Op).Var);
}
}
extendedNodeInfo1.NonNullableDefinitions.Or(extendedNodeInfo2.NonNullableDefinitions);
extendedNodeInfo1.NonNullableDefinitions.And(op.Keys);
for (int index = 2; index < n.Children.Count; ++index)
{
foreach (Node child in n.Children[index].Children)
{
NodeInfo nodeInfo = this.GetNodeInfo(child.Child0);
extendedNodeInfo1.ExternalReferences.Or(nodeInfo.ExternalReferences);
}
}
extendedNodeInfo1.ExternalReferences.Minus(extendedNodeInfo2.Definitions);
extendedNodeInfo1.Keys.InitFrom((IEnumerable <Var>)op.Keys);
extendedNodeInfo1.MinRows = op.Keys.IsEmpty ? RowCount.One : (extendedNodeInfo2.MinRows == RowCount.One ? RowCount.One : RowCount.Zero);
extendedNodeInfo1.MaxRows = op.Keys.IsEmpty ? RowCount.One : extendedNodeInfo2.MaxRows;
return((NodeInfo)extendedNodeInfo1);
}
internal Command(MetadataWorkspace metadataWorkspace)
{
this.m_parameterMap = new Dictionary <string, ParameterVar>();
this.m_vars = new List <Var>();
this.m_tables = new List <Table>();
this.m_metadataWorkspace = metadataWorkspace;
if (!Command.TryGetPrimitiveType(PrimitiveTypeKind.Boolean, out this.m_boolType))
{
throw new ProviderIncompatibleException(Strings.Cqt_General_NoProviderBooleanType);
}
if (!Command.TryGetPrimitiveType(PrimitiveTypeKind.Int32, out this.m_intType))
{
throw new ProviderIncompatibleException(Strings.Cqt_General_NoProviderIntegerType);
}
if (!Command.TryGetPrimitiveType(PrimitiveTypeKind.String, out this.m_stringType))
{
throw new ProviderIncompatibleException(Strings.Cqt_General_NoProviderStringType);
}
this.m_trueOp = new ConstantPredicateOp(this.m_boolType, true);
this.m_falseOp = new ConstantPredicateOp(this.m_boolType, false);
this.m_nodeInfoVisitor = new NodeInfoVisitor(this);
this.m_keyPullupVisitor = new KeyPullup(this);
this.m_freeVarVecEnumerators = new Stack <VarVec.VarVecEnumerator>();
this.m_freeVarVecs = new Stack <VarVec>();
this.m_referencedRelProperties = new HashSet <RelProperty>();
}
public override NodeInfo Visit(ProjectOp op, Node n)
{
ExtendedNodeInfo extendedNodeInfo1 = this.InitExtendedNodeInfo(n);
ExtendedNodeInfo extendedNodeInfo2 = this.GetExtendedNodeInfo(n.Child0);
foreach (Var output in op.Outputs)
{
if (extendedNodeInfo2.Definitions.IsSet(output))
{
extendedNodeInfo1.Definitions.Set(output);
}
else
{
extendedNodeInfo1.ExternalReferences.Set(output);
}
}
extendedNodeInfo1.NonNullableDefinitions.InitFrom(extendedNodeInfo2.NonNullableDefinitions);
extendedNodeInfo1.NonNullableDefinitions.And(op.Outputs);
extendedNodeInfo1.NonNullableVisibleDefinitions.InitFrom(extendedNodeInfo2.NonNullableDefinitions);
foreach (Node child in n.Child1.Children)
{
VarDefOp op1 = child.Op as VarDefOp;
NodeInfo nodeInfo = this.GetNodeInfo(child.Child0);
extendedNodeInfo1.LocalDefinitions.Set(op1.Var);
extendedNodeInfo1.ExternalReferences.Clear(op1.Var);
extendedNodeInfo1.Definitions.Set(op1.Var);
extendedNodeInfo1.ExternalReferences.Or(nodeInfo.ExternalReferences);
if (NodeInfoVisitor.IsDefinitionNonNullable(child.Child0, extendedNodeInfo1.NonNullableVisibleDefinitions))
{
extendedNodeInfo1.NonNullableDefinitions.Set(op1.Var);
}
}
extendedNodeInfo1.ExternalReferences.Minus(extendedNodeInfo2.Definitions);
extendedNodeInfo1.ExternalReferences.Or(extendedNodeInfo2.ExternalReferences);
extendedNodeInfo1.Keys.NoKeys = true;
if (!extendedNodeInfo2.Keys.NoKeys)
{
VarVec varVec1 = this.m_command.CreateVarVec(extendedNodeInfo2.Keys.KeyVars).Remap(NodeInfoVisitor.ComputeVarRemappings(n.Child1));
VarVec varVec2 = varVec1.Clone();
VarVec varVec3 = this.m_command.CreateVarVec(op.Outputs);
varVec1.Minus(varVec3);
if (varVec1.IsEmpty)
{
extendedNodeInfo1.Keys.InitFrom((IEnumerable <Var>)varVec2);
}
}
extendedNodeInfo1.InitRowCountFrom(extendedNodeInfo2);
return((NodeInfo)extendedNodeInfo1);
}
