fix(server-utils): Use onlyIfParent for Tedious spans (#25876)

**Why:** Consolidating to use the core `onlyIfParent` logic everywhere
so we can get rid of `requiresParentSpan`.

---------

Co-authored-by: GPT-6 <codex@openai.com>

Author: nicohrubec

dev-packages/node-integration-tests/suites/tracing/tedious/scenario-no-parent.mjs

@@ -1,4 +1,3 @@
-import type { SerializedStreamedSpan } from '@sentry/core';
 import {
   DB_NAMESPACE,
   DB_QUERY_SUMMARY,
@@ -123,44 +122,6 @@ describeWithDockerCompose('tedious auto instrumentation', { workingDirectory: [_
     });
   });
 
-  createEsmAndCjsTests(__dirname, 'scenario-no-parent.mjs', 'instrument.mjs', (createTestRunner, test) => {
-    test('only instruments queries with an active parent span', async () => {
-      const runner = createTestRunner();
-      const dbSpans = new Map<string, SerializedStreamedSpan>();
-      const spansPromise = runner.collectStreamedSpans(spans => {
-        for (const span of spans) {
-          if (span.attributes[SENTRY_ORIGIN]?.value === ORIGIN) {
-            dbSpans.set(span.span_id, span);
-          }
-        }
-        return spans.some(span => span.is_segment && span.name === 'parent operation');
-      });
-
-      await runner.unordered().start().completed();
-
-      const spans = await spansPromise;
-      const parent = spans.find(span => span.is_segment && span.name === 'parent operation');
-      expect(parent).toBeDefined();
-      expect(
-        Array.from(dbSpans.values(), span => ({
-          query: span.attributes[DB_QUERY_TEXT]?.value,
-          database: span.attributes[DB_NAMESPACE]?.value,
-          parentSpanId: span.parent_span_id,
-          traceId: span.trace_id,
-          isSegment: span.is_segment,
-        })),
-      ).toEqual([
-        {
-          query: 'SELECT ? AS inside_parent',
-          database: 'master',
-          parentSpanId: parent?.span_id,
-          traceId: parent?.trace_id,
-          isSegment: false,
-        },
-      ]);
-    });
-  });
-
   // tedious 20 requires Node >= 22.
   describe.runIf(supports({ min: 22 }))('tedious v20', () => {
     createEsmAndCjsTests(

dev-packages/node-integration-tests/suites/tracing/tedious/test.ts

@@ -7,7 +7,6 @@ import * as diagnosticsChannel from '../utils/diagnosticsChannel';
 import type { IntegrationFn, SpanAttributes } from '@sentry/core';
 import {
   defineIntegration,
-  getActiveSpan,
   getClient,
   hasSpanStreamingEnabled,
   SPAN_STATUS_ERROR,
@@ -111,10 +110,6 @@ function subscribeConnect(): void {
 
 function subscribeQuery(channelName: string, operation: string): void {
   diagnosticsChannel.tracingChannel(channelName).start.subscribe(message => {
-    if (!getActiveSpan()) {
-      return;
-    }
-
     const data = message as TediousQueryChannelContext;
     const connection = data.self;
     const request = data.arguments[0];
@@ -162,6 +157,7 @@ function subscribeQuery(channelName: string, operation: string): void {
           ? querySummary || getLowCardinalitySecondarySpanName(operation, databaseName, sql, request.table)
           : queryText || getSecondarySpanName(operation, databaseName, request.table),
       attributes,
+      onlyIfParent: true,
     });
 
     const endSpan = once((err?: { message?: string }): void => {