Add BC performance knowledge from OptimAL learnings (#198)

* Add BC performance knowledge from OptimAL learnings Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> * Address review feedback on performance guidance Clarify predicate-supporting keys versus covering queries, demonstrate proven cache reuse, and evaluate the updated partial-load and bulk-update rules. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com> Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-10-05 14:46:55 +01:00 · 2026-09-29 17:21:28 +02:00 · 2026-09-29 17:21:28 +02:00 · 87ba36e650
commit 87ba36e650
parent 56ce52a9c7
37 changed files with 920 additions and 37 deletions
--- a/microsoft/knowledge/performance/aggregate-before-persisting-intermediate-results.good.al
+++ b/microsoft/knowledge/performance/aggregate-before-persisting-intermediate-results.good.al
@ -0,0 +1,93 @@
+// Input stays stable for this run; output contains one row per group with entries.
+table 50367 "Perf Posted Entry"
+{
+    DataClassification = CustomerContent;
+
+    fields
+    {
+        field(1; "Entry No."; Integer) { }
+        field(2; "Item No."; Code[20]) { }
+        field(3; "Location Code"; Code[10]) { }
+        field(4; "Posting Date"; Date) { }
+        field(5; Quantity; Decimal) { }
+    }
+
+    keys
+    {
+        key(PK; "Entry No.") { Clustered = true; }
+        key(ByItemLocationDate; "Item No.", "Location Code", "Posting Date")
+        {
+            SumIndexFields = Quantity;
+        }
+    }
+}
+
+table 50368 "Perf Quantity Summary"
+{
+    DataClassification = CustomerContent;
+
+    fields
+    {
+        field(1; "Run ID"; Guid) { }
+        field(2; "Item No."; Code[20]) { }
+        field(3; "Location Code"; Code[10]) { }
+        field(4; Quantity; Decimal) { }
+    }
+
+    keys
+    {
+        key(PK; "Run ID", "Item No.", "Location Code") { Clustered = true; }
+    }
+}
+
+query 50370 "Perf Grouped Quantity"
+{
+    QueryType = Normal;
+
+    elements
+    {
+        dataitem(Entry; "Perf Posted Entry")
+        {
+            column(ItemNo; "Item No.") { }
+            column(LocationCode; "Location Code") { }
+            column(TotalQuantity; Quantity)
+            {
+                Method = Sum;
+            }
+            filter(PostingDate; "Posting Date") { }
+        }
+    }
+}
+
+codeunit 50369 "Perf Summary Good"
+{
+    procedure BuildSummary(CutoffDate: Date) RunId: Guid
+    var
+        Totals: Query "Perf Grouped Quantity";
+        TempSummary: Record "Perf Quantity Summary" temporary;
+        Summary: Record "Perf Quantity Summary";
+    begin
+        RunId := CreateGuid();
+        Totals.SetFilter(PostingDate, '..%1', CutoffDate);
+        Totals.Open();
+        while Totals.Read() do begin
+            TempSummary.Init();
+            TempSummary."Run ID" := RunId;
+            TempSummary."Item No." := Totals.ItemNo;
+            TempSummary."Location Code" := Totals.LocationCode;
+            TempSummary.Quantity := Totals.TotalQuantity;
+            TempSummary.Insert();
+        end;
+        Totals.Close();
+
+        if TempSummary.FindSet() then
+            repeat
+                Summary.Init();
+                Summary."Run ID" := RunId;
+                Summary."Item No." := TempSummary."Item No.";
+                Summary."Location Code" := TempSummary."Location Code";
+                Summary.Quantity := TempSummary.Quantity;
+                Summary.Insert(false);
+            until TempSummary.Next() = 0;
+    end;
+}