diff --git a/packages/core/src/tracing/instrumentation/databases/pg.js b/packages/core/src/tracing/instrumentation/databases/pg.js
index eed210ad70..839724eb02 100644
--- a/packages/core/src/tracing/instrumentation/databases/pg.js
+++ b/packages/core/src/tracing/instrumentation/databases/pg.js
@@ -82,9 +82,11 @@ function instrumentedQuery(ctx, originalQuery, argsForOriginalQuery) {
         return originalCallback.apply(this, arguments);
       };
       argsForOriginalQuery[callbackIndex] = cls.ns.bind(wrappedCallback);
+      return originalQuery.apply(ctx, argsForOriginalQuery);
     }
 
     const promise = originalQuery.apply(ctx, argsForOriginalQuery);
+
     if (promise && typeof promise.then === 'function') {
       promise
         .then(value => {
@@ -95,6 +97,9 @@ function instrumentedQuery(ctx, originalQuery, argsForOriginalQuery) {
           finishSpan(error, span);
           return error;
         });
+    } else {
+      tracingUtil.handleUnexpectedReturnValue(promise, exports.spanName, 'query');
+      finishSpan(null, span);
     }
     return promise;
   });
diff --git a/packages/core/src/tracing/tracingUtil.js b/packages/core/src/tracing/tracingUtil.js
index 17cd2684c3..e8d3efa461 100644
--- a/packages/core/src/tracing/tracingUtil.js
+++ b/packages/core/src/tracing/tracingUtil.js
@@ -411,3 +411,21 @@ exports.setErrorDetails = function setErrorDetails(span, error, technology) {
     logger.error('Failed to set error details on span:', err);
   }
 };
+
+/**
+ * Handles and logs a trace message when the instrumented function returns an unexpected value(not a promise)
+ *
+ * @param {*} returnValue - The return value from the instrumented function
+ * @param {string} spanName - The name of the span (e.g., 'redis', 'postgres', 'mysql')
+ * @param {string} operationContext - Additional context about the operation (e.g., 'query', 'command')
+ * @returns {boolean} - Returns true if the return value was unexpected (not a promise), false otherwise
+ */
+exports.handleUnexpectedReturnValue = function handleUnexpectedReturnValue(returnValue, spanName, operationContext) {
+  logger.trace(
+    `${spanName} instrumentation: Unexpected return value from ${operationContext}. ` +
+      `Expected a promise but got: ${typeof returnValue}. ` +
+      'This indicates an unsupported library behavior.'
+  );
+
+  return true;
+};