Adding test case and fixing issue that it revealed with external tables as well.

packages/server/src/api/routes/tests/row.spec.ts

@@ -517,9 +517,22 @@ describe.each([
   })
 
   describe("patch", () => {
+    let otherTable: Table
+
     beforeAll(async () => {
       const tableConfig = generateTableConfig()
       table = await createTable(tableConfig)
+      const otherTableConfig = generateTableConfig()
+      // need a short name of table here - for relationship tests
+      otherTableConfig.name = "a"
+      otherTableConfig.schema.relationship = {
+        name: "relationship",
+        type: FieldType.LINK,
+        fieldName: "relationship",
+        tableId: table._id!,
+        relationshipType: RelationshipType.ONE_TO_MANY,
+      }
+      otherTable = await createTable(otherTableConfig)
     })
 
     it("should update only the fields that are supplied", async () => {
@@ -615,6 +628,28 @@ describe.each([
       expect(getResp.body.user1[0]._id).toEqual(user2._id)
       expect(getResp.body.user2[0]._id).toEqual(user2._id)
     })
+
+    it("should be able to update relationships when both columns are same name", async () => {
+      let row = await config.api.row.save(table._id!, {
+        name: "test",
+        description: "test",
+      })
+      let row2 = await config.api.row.save(otherTable._id!, {
+        name: "test",
+        description: "test",
+        relationship: [row._id],
+      })
+      row = (await config.api.row.get(table._id!, row._id!)).body
+      expect(row.relationship.length).toBe(1)
+      const resp = await config.api.row.patch(table._id!, {
+        _id: row._id!,
+        _rev: row._rev!,
+        tableId: row.tableId!,
+        name: "test2",
+        relationship: [row2._id],
+      })
+      expect(resp.relationship.length).toBe(1)
+    })
   })
 
   describe("destroy", () => {

packages/server/src/sdk/app/tables/external/utils.ts

@@ -1,5 +1,6 @@
 import {
   Datasource,
+  FieldType,
   ManyToManyRelationshipFieldMetadata,
   ManyToOneRelationshipFieldMetadata,
   OneToManyRelationshipFieldMetadata,
@@ -42,10 +43,13 @@ export function cleanupRelationships(
       for (let [relatedKey, relatedSchema] of Object.entries(
         relatedTable.schema
       )) {
-        if (
-          relatedSchema.type === FieldTypes.LINK &&
-          relatedSchema.fieldName === foreignKey
-        ) {
+        if (relatedSchema.type !== FieldType.LINK) {
+          continue
+        }
+        // if they both have the same field name it will appear as if it needs to be removed,
+        // don't cleanup in this scenario
+        const sameFieldNameForBoth = relatedSchema.name === schema.name
+        if (relatedSchema.fieldName === foreignKey && !sameFieldNameForBoth) {
           delete relatedTable.schema[relatedKey]
         }
       }