diff --git a/packages/cli/src/context/scan/relationship-benchmarks.ts b/packages/cli/src/context/scan/relationship-benchmarks.ts
index f4367b5a..a07221a3 100644
--- a/packages/cli/src/context/scan/relationship-benchmarks.ts
+++ b/packages/cli/src/context/scan/relationship-benchmarks.ts
@@ -6,6 +6,7 @@ import { gunzipSync } from 'node:zlib';
 import Database from 'better-sqlite3';
 import YAML from 'yaml';
 import { z } from 'zod';
+import { getDialectForDriver } from '../connections/dialects.js';
 import type { KtxLlmRuntimePort } from '../llm/runtime-port.js';
 import type { KtxEnrichedRelationship, KtxEnrichedSchema, KtxRelationshipType } from './enrichment-types.js';
 import { snapshotToKtxEnrichedSchema } from './local-enrichment.js';
@@ -536,6 +537,7 @@ export function ktxRelationshipBenchmarkDetectorWithLlm(
       const formalLinks = formalMetadata.accepted.map((relationship) => relationshipToBenchmarkLink(relationship));
       const acceptedKeys = new Set(formalLinks.map(fkKey));
       const sqliteDataAvailable = Boolean(input.dataPath && input.snapshot.driver === 'sqlite');
+      const dialect = getDialectForDriver(input.snapshot.driver);
       const profilingExecutor =
         sqliteDataAvailable && input.mode !== 'profiling_disabled'
           ? new KtxRelationshipBenchmarkSqliteExecutor(input.dataPath as string)
@@ -550,7 +552,7 @@ export function ktxRelationshipBenchmarkDetectorWithLlm(
             })
           : await profileKtxRelationshipSchema({
               connectionId: input.snapshot.connectionId,
-              driver: input.snapshot.driver,
+              dialect,
               schema: input.schema,
               executor: profilingExecutor,
               ctx: { runId: `relationship-benchmark:${input.fixtureId}:${input.mode}:profile` },
@@ -580,7 +582,7 @@ export function ktxRelationshipBenchmarkDetectorWithLlm(
             : Math.max(0, input.validationBudget - profiles.queryCount);
       const validatedBroadCandidates = await validateKtxRelationshipDiscoveryCandidates({
         connectionId: input.snapshot.connectionId,
-        driver: input.snapshot.driver,
+        dialect,
         candidates,
         profiles,
         executor: validationExecutor,
@@ -597,7 +599,7 @@ export function ktxRelationshipBenchmarkDetectorWithLlm(
         input.mode !== 'validation_disabled'
           ? await discoverKtxCompositeRelationships({
               connectionId: input.snapshot.connectionId,
-              driver: input.snapshot.driver,
+              dialect,
               schema: input.schema,
               profiles,
               executor: validationExecutor,
@@ -671,6 +673,7 @@ export function currentKtxRelationshipBenchmarkDetector(): KtxRelationshipBenchm
       const formalLinks = formalMetadata.accepted.map((relationship) => relationshipToBenchmarkLink(relationship));
       const acceptedKeys = new Set(formalLinks.map(fkKey));
       const sqliteDataAvailable = Boolean(input.dataPath && input.snapshot.driver === 'sqlite');
+      const dialect = getDialectForDriver(input.snapshot.driver);
       const profilingExecutor =
         sqliteDataAvailable && input.mode !== 'profiling_disabled'
           ? new KtxRelationshipBenchmarkSqliteExecutor(input.dataPath as string)
@@ -685,7 +688,7 @@ export function currentKtxRelationshipBenchmarkDetector(): KtxRelationshipBenchm
             })
           : await profileKtxRelationshipSchema({
               connectionId: input.snapshot.connectionId,
-              driver: input.snapshot.driver,
+              dialect,
               schema: input.schema,
               executor: profilingExecutor,
               ctx: { runId: `relationship-benchmark:${input.fixtureId}:${input.mode}:profile` },
@@ -702,7 +705,7 @@ export function currentKtxRelationshipBenchmarkDetector(): KtxRelationshipBenchm
             : Math.max(0, input.validationBudget - profiles.queryCount);
       const validatedBroadCandidates = await validateKtxRelationshipDiscoveryCandidates({
         connectionId: input.snapshot.connectionId,
-        driver: input.snapshot.driver,
+        dialect,
         candidates: broadRelationshipCandidates,
         profiles,
         executor: validationExecutor,
@@ -719,7 +722,7 @@ export function currentKtxRelationshipBenchmarkDetector(): KtxRelationshipBenchm
         input.mode !== 'validation_disabled'
           ? await discoverKtxCompositeRelationships({
               connectionId: input.snapshot.connectionId,
-              driver: input.snapshot.driver,
+              dialect,
               schema: input.schema,
               profiles,
               executor: validationExecutor,