fix: new index for post dated

Author: tstephen-nhs

SAMtemplates/tables/main.yaml

@@ -184,8 +184,6 @@ Resources:
               - TerminalStatus
               - LastModified
               - Status
-                # TODO: Remove this when we deprecate post dated prescriptions.
-              - PostDatedLastModifiedSetAt
             ProjectionType: INCLUDE
           ProvisionedThroughput: !If
             - EnableDynamoDBAutoScalingCondition
@@ -222,6 +220,27 @@ Resources:
             - ReadCapacityUnits: 1
               WriteCapacityUnits: !Ref MinWritePrescriptionStatusUpdatesCapacity
             - !Ref "AWS::NoValue"
+        - IndexName: PharmacyODSCodePrescriptionIDIndexIncPostDated
+          KeySchema:
+            - AttributeName: PharmacyODSCode
+              KeyType: HASH
+            - AttributeName: PrescriptionID
+              KeyType: RANGE
+          Projection:
+            NonKeyAttributes:
+              - PatientNHSNumber
+              - LineItemID
+              - TerminalStatus
+              - LastModified
+              - Status
+                # TODO: Remove this when we deprecate post dated prescriptions.
+              - PostDatedLastModifiedSetAt
+            ProjectionType: INCLUDE
+          ProvisionedThroughput: !If
+            - EnableDynamoDBAutoScalingCondition
+            - ReadCapacityUnits: 1
+              WriteCapacityUnits: !Ref MinWritePrescriptionStatusUpdatesCapacity
+            - !Ref "AWS::NoValue"            
       Tags:
         - Key: "EPS-Tablename"
           Value: "PrescriptionStatusUpdates"

packages/gsul/src/dynamoDBclient.ts

@@ -50,7 +50,8 @@ export async function getItemsUpdatesForPrescription(
 export function createQueryCommandInput(odsCode: string, prescriptionID: string): QueryCommandInput {
   return {
     TableName: tableName,
-    IndexName: "PharmacyODSCodePrescriptionIDIndex",
+    // TODO: revert to PharmacyODSCodePrescriptionIDIndex once post-dated no longer required
+    IndexName: "PharmacyODSCodePrescriptionIDIndexIncPostDated",
     KeyConditionExpression: "PrescriptionID = :inputPrescriptionID AND PharmacyODSCode = :inputPharmacyODSCode",
     ExpressionAttributeValues: {
       ":inputPharmacyODSCode": odsCode.toUpperCase(),

packages/gsul/tests/testRunDynamoDBQueries.test.ts

@@ -48,7 +48,7 @@ describe("testing dynamoDBClient", () => {
 
     const expected = {
       TableName: undefined,
-      IndexName: "PharmacyODSCodePrescriptionIDIndex",
+      IndexName: "PharmacyODSCodePrescriptionIDIndexIncPostDated",
       KeyConditionExpression: "PrescriptionID = :inputPrescriptionID AND PharmacyODSCode = :inputPharmacyODSCode",
       ExpressionAttributeValues: {
         ":inputPharmacyODSCode": "ODSCODE",