diff --git a/integration-tests/engines.js b/integration-tests/engines.js
index eb14d8c4e..011af6378 100644
--- a/integration-tests/engines.js
+++ b/integration-tests/engines.js
@@ -188,8 +188,8 @@ const filterLocal = [
   // filter local testing
   '-MySQL',
   '-MariaDB',
-  'PostgreSQL',
-  '-SQL Server',
+  '-PostgreSQL',
+  'SQL Server',
   '-SQLite',
   '-CockroachDB',
   '-ClickHouse',
diff --git a/packages/tools/src/diffTools.ts b/packages/tools/src/diffTools.ts
index 96c259b32..7b301ea5f 100644
--- a/packages/tools/src/diffTools.ts
+++ b/packages/tools/src/diffTools.ts
@@ -392,49 +392,62 @@ function testEqualCheck(a: CheckInfo, b: CheckInfo, opts: DbDiffOptions) {
   return true;
 }
 
-// function testEqualConstraints(a: ConstraintInfo, b: ConstraintInfo, opts: DbDiffOptions = {}) {
-//   if (a.constraintType != b.constraintType) {
-//     console.debug(`Constraint ${a.pureName}: different constraint type: ${a.constraintType}, ${b.constraintType}`);
-//     return false;
-//   }
-
-//   switch (a.constraintType) {
-//     case 'primaryKey':
-//     case 'sortingKey':
-//       return testEqualPrimaryKeys(a as PrimaryKeyInfo, b as PrimaryKeyInfo, opts);
-//     case 'foreignKey':
-//       return testEqualForeignKeys(a as ForeignKeyInfo, b as ForeignKeyInfo, opts);
-//     case 'index':
-//       return testEqualIndex(a as IndexInfo, b as IndexInfo, opts);
-//     case 'unique':
-//       return testEqualUnique(a as UniqueInfo, b as UniqueInfo, opts);
-//     case 'check':
-//       return testEqualCheck(a as CheckInfo, b as CheckInfo, opts);
-//   }
-
-//   console.debug(`Unknown constraint type: ${a.pureName}`);
-
-//   return false;
-// }
-
 function testEqualConstraints(a: ConstraintInfo, b: ConstraintInfo, opts: DbDiffOptions = {}) {
-  const omitList = ['pairingId'];
-  if (opts.ignoreForeignKeyActions) {
-    omitList.push('updateAction');
-    omitList.push('deleteAction');
-  }
-  if (opts.ignoreConstraintNames) {
-    omitList.push('constraintName');
-  }
-  if (opts.schemaMode == 'ignore') {
-    omitList.push('schemaName');
-    omitList.push('refSchemaName');
+  if (a.constraintType != b.constraintType) {
+    console.debug(`Constraint ${a.pureName}: different constraint type: ${a.constraintType}, ${b.constraintType}`);
+    return false;
   }
 
-  const aStringified = stableStringify(_omit(a, omitList));
-  const bStringified = stableStringify(_omit(b, omitList));
+  switch (a.constraintType) {
+    case 'primaryKey':
+    case 'sortingKey':
+      return testEqualPrimaryKeys(a as PrimaryKeyInfo, b as PrimaryKeyInfo, opts);
+    case 'foreignKey':
+      return testEqualForeignKeys(a as ForeignKeyInfo, b as ForeignKeyInfo, opts);
+    case 'index':
+      return testEqualIndex(a as IndexInfo, b as IndexInfo, opts);
+    case 'unique':
+      return testEqualUnique(a as UniqueInfo, b as UniqueInfo, opts);
+    case 'check':
+      return testEqualCheck(a as CheckInfo, b as CheckInfo, opts);
+  }
 
-  return aStringified == bStringified;
+  console.debug(`Unknown constraint type: ${a.pureName}`);
+
+  return false;
+
+  // const omitList = ['pairingId'];
+  // if (opts.ignoreForeignKeyActions) {
+  //   omitList.push('updateAction');
+  //   omitList.push('deleteAction');
+  // }
+  // if (opts.ignoreConstraintNames) {
+  //   omitList.push('constraintName');
+  // }
+  // if (opts.schemaMode == 'ignore') {
+  //   omitList.push('schemaName');
+  //   omitList.push('refSchemaName');
+  // }
+
+  // if (a.constraintType == 'primaryKey' && b.constraintType == 'primaryKey') {
+  //   console.log('PK1', stableStringify(_.omit(a, omitList)));
+  //   console.log('PK2', stableStringify(_.omit(b, omitList)));
+  // }
+
+  // if (a.constraintType == 'foreignKey' && b.constraintType == 'foreignKey') {
+  //   console.log('FK1', stableStringify(_omit(a, omitList)));
+  //   console.log('FK2', stableStringify(_omit(b, omitList)));
+  // }
+
+  // if (a.constraintType == 'index' && b.constraintType == 'index') {
+  //   console.log('IX1', stableStringify(_omit(a, omitList)));
+  //   console.log('IX2', stableStringify(_omit(b, omitList)));
+  // }
+
+  // const aStringified = stableStringify(_omit(a, omitList));
+  // const bStringified = stableStringify(_omit(b, omitList));
+
+  // return aStringified == bStringified;
 }
 
 export function testEqualTypes(a: ColumnInfo, b: ColumnInfo, opts: DbDiffOptions = {}) {