public override void PerformOnSource(ExtractFunction node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
m_sql.Append(" FROM ");
}
public override void PerformAfter(ExtractFunction node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
m_sql.Append(')');
}
public override void PerformBefore(ExtractFunction node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
m_sql.Append("EXTRACT(");
}
public override void PerformAfter(ExtractFunction node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
base.PerformAfter(node);
ReplaceTerm(node, MakeDateExtractor(node));
}
FunctionCall MakeDateExtractor(ExtractFunction extractFunction)
{
if (extractFunction == null)
{
throw new ArgumentNullException("extractFunction");
}
FunctionCall functionCall = new FunctionCall("DATEPART");
functionCall.ExpressionArguments = new ExpressionItem(extractFunction.FieldSpec);
functionCall.ExpressionArguments.Add(new ExpressionItem(extractFunction.Source));
return(functionCall);
}
public virtual void PerformAfter(ExtractFunction node)
{
}
public virtual void PerformOnSource(ExtractFunction node)
{
}
public virtual void PerformBefore(ExtractFunction node)
{
}
public override void PerformAfter(ExtractFunction node)
{
PopKnownParent(node);
}
public override void PerformBefore(ExtractFunction node)
{
PushParent(node);
}
