diff --git a/.phpstan-dba-mysqli.cache b/.phpstan-dba-mysqli.cache
index c121430ea..5c0682125 100644
--- a/.phpstan-dba-mysqli.cache
+++ b/.phpstan-dba-mysqli.cache
@@ -216,8 +216,8 @@
                 MD5(
                     GROUP_CONCAT(
                         CONCAT(
-                            COALESCE(COLUMN_NAME, ""),
-                            COALESCE(EXTRA, ""),
+                            COALESCE(COLUMN_NAME, \'\'),
+                            COALESCE(EXTRA, \'\'),
                             COLUMN_TYPE,
                             IS_NULLABLE
                         )
@@ -542,8 +542,8 @@
       ),
     ),
     'SELECT
-                    coalesce(COLUMN_NAME, "") as COLUMN_NAME,
-                    coalesce(EXTRA, "") as EXTRA,
+                    coalesce(COLUMN_NAME, \'\') as COLUMN_NAME,
+                    coalesce(EXTRA, \'\') as EXTRA,
                     COLUMN_TYPE
                  FROM information_schema.columns
                  WHERE table_name = \'1970-01-01\' AND table_schema = DATABASE()' => 
@@ -652,8 +652,8 @@
       ),
     ),
     'SELECT
-                    coalesce(COLUMN_NAME, "") as COLUMN_NAME,
-                    coalesce(EXTRA, "") as EXTRA,
+                    coalesce(COLUMN_NAME, \'\') as COLUMN_NAME,
+                    coalesce(EXTRA, \'\') as EXTRA,
                     COLUMN_TYPE
                  FROM information_schema.columns
                  WHERE table_name = ? AND table_schema = DATABASE()' => 
diff --git a/.phpstan-dba-pdo.cache b/.phpstan-dba-pdo.cache
index b1ac86c20..6de7fb3ff 100644
--- a/.phpstan-dba-pdo.cache
+++ b/.phpstan-dba-pdo.cache
@@ -216,8 +216,8 @@
                 MD5(
                     GROUP_CONCAT(
                         CONCAT(
-                            COALESCE(COLUMN_NAME, ""),
-                            COALESCE(EXTRA, ""),
+                            COALESCE(COLUMN_NAME, \'\'),
+                            COALESCE(EXTRA, \'\'),
                             COLUMN_TYPE,
                             IS_NULLABLE
                         )
@@ -542,8 +542,8 @@
       ),
     ),
     'SELECT
-                    coalesce(COLUMN_NAME, "") as COLUMN_NAME,
-                    coalesce(EXTRA, "") as EXTRA,
+                    coalesce(COLUMN_NAME, \'\') as COLUMN_NAME,
+                    coalesce(EXTRA, \'\') as EXTRA,
                     COLUMN_TYPE
                  FROM information_schema.columns
                  WHERE table_name = \'1970-01-01\' AND table_schema = DATABASE()' => 
@@ -652,8 +652,8 @@
       ),
     ),
     'SELECT
-                    coalesce(COLUMN_NAME, "") as COLUMN_NAME,
-                    coalesce(EXTRA, "") as EXTRA,
+                    coalesce(COLUMN_NAME, \'\') as COLUMN_NAME,
+                    coalesce(EXTRA, \'\') as EXTRA,
                     COLUMN_TYPE
                  FROM information_schema.columns
                  WHERE table_name = ? AND table_schema = DATABASE()' => 
diff --git a/tests/default/config/.phpstan-dba-mysqli.cache b/tests/default/config/.phpstan-dba-mysqli.cache
index 481f30412..b1d2b348c 100644
--- a/tests/default/config/.phpstan-dba-mysqli.cache
+++ b/tests/default/config/.phpstan-dba-mysqli.cache
@@ -2456,6 +2456,69 @@
         )),
       ),
     ),
+    'SELECT adaid FROM ada WHERE email LIKE \'hello?%\'' => 
+    array (
+      'result' => 
+      array (
+        5 => 
+        PHPStan\Type\Constant\ConstantArrayType::__set_state(array(
+           'allArrays' => NULL,
+           'nextAutoIndexes' => 
+          array (
+            0 => 1,
+          ),
+           'keyTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+               'value' => 'adaid',
+               'isClassString' => false,
+            )),
+            1 => 
+            PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+               'value' => 0,
+            )),
+          ),
+           'valueTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+            1 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+          ),
+           'optionalKeys' => 
+          array (
+          ),
+           'keyType' => 
+          PHPStan\Type\UnionType::__set_state(array(
+             'sortedTypes' => true,
+             'types' => 
+            array (
+              0 => 
+              PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+                 'value' => 0,
+              )),
+              1 => 
+              PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+                 'value' => 'adaid',
+                 'isClassString' => false,
+              )),
+            ),
+          )),
+           'itemType' => 
+          PHPStan\Type\IntegerRangeType::__set_state(array(
+             'min' => -32768,
+             'max' => 32767,
+          )),
+        )),
+      ),
+    ),
     'SELECT akid FROM ak WHERE eadavk>1.0' => 
     array (
       'result' => 
diff --git a/tests/default/config/.phpstan-dba-pdo.cache b/tests/default/config/.phpstan-dba-pdo.cache
index 481f30412..b1d2b348c 100644
--- a/tests/default/config/.phpstan-dba-pdo.cache
+++ b/tests/default/config/.phpstan-dba-pdo.cache
@@ -2456,6 +2456,69 @@
         )),
       ),
     ),
+    'SELECT adaid FROM ada WHERE email LIKE \'hello?%\'' => 
+    array (
+      'result' => 
+      array (
+        5 => 
+        PHPStan\Type\Constant\ConstantArrayType::__set_state(array(
+           'allArrays' => NULL,
+           'nextAutoIndexes' => 
+          array (
+            0 => 1,
+          ),
+           'keyTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+               'value' => 'adaid',
+               'isClassString' => false,
+            )),
+            1 => 
+            PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+               'value' => 0,
+            )),
+          ),
+           'valueTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+            1 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+          ),
+           'optionalKeys' => 
+          array (
+          ),
+           'keyType' => 
+          PHPStan\Type\UnionType::__set_state(array(
+             'sortedTypes' => true,
+             'types' => 
+            array (
+              0 => 
+              PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+                 'value' => 0,
+              )),
+              1 => 
+              PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+                 'value' => 'adaid',
+                 'isClassString' => false,
+              )),
+            ),
+          )),
+           'itemType' => 
+          PHPStan\Type\IntegerRangeType::__set_state(array(
+             'min' => -32768,
+             'max' => 32767,
+          )),
+        )),
+      ),
+    ),
     'SELECT akid FROM ak WHERE eadavk>1.0' => 
     array (
       'result' => 
diff --git a/tests/default/config/.phpunit-phpstan-dba-mysqli.cache b/tests/default/config/.phpunit-phpstan-dba-mysqli.cache
index 369604c02..f7b0b2e14 100644
--- a/tests/default/config/.phpunit-phpstan-dba-mysqli.cache
+++ b/tests/default/config/.phpunit-phpstan-dba-mysqli.cache
@@ -2744,6 +2744,69 @@
         )),
       ),
     ),
+    'SELECT adaid FROM ada WHERE email LIKE \'hello?%\'' => 
+    array (
+      'result' => 
+      array (
+        5 => 
+        PHPStan\Type\Constant\ConstantArrayType::__set_state(array(
+           'allArrays' => NULL,
+           'nextAutoIndexes' => 
+          array (
+            0 => 1,
+          ),
+           'keyTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+               'value' => 'adaid',
+               'isClassString' => false,
+            )),
+            1 => 
+            PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+               'value' => 0,
+            )),
+          ),
+           'valueTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+            1 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+          ),
+           'optionalKeys' => 
+          array (
+          ),
+           'keyType' => 
+          PHPStan\Type\UnionType::__set_state(array(
+             'sortedTypes' => true,
+             'types' => 
+            array (
+              0 => 
+              PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+                 'value' => 0,
+              )),
+              1 => 
+              PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+                 'value' => 'adaid',
+                 'isClassString' => false,
+              )),
+            ),
+          )),
+           'itemType' => 
+          PHPStan\Type\IntegerRangeType::__set_state(array(
+             'min' => -32768,
+             'max' => 32767,
+          )),
+        )),
+      ),
+    ),
     'SELECT akid FROM ak WHERE eadavk>1.0' => 
     array (
       'result' => 
diff --git a/tests/default/config/.phpunit-phpstan-dba-pdo.cache b/tests/default/config/.phpunit-phpstan-dba-pdo.cache
index 0bacc0390..3fd1f43c1 100644
--- a/tests/default/config/.phpunit-phpstan-dba-pdo.cache
+++ b/tests/default/config/.phpunit-phpstan-dba-pdo.cache
@@ -2456,6 +2456,69 @@
         )),
       ),
     ),
+    'SELECT adaid FROM ada WHERE email LIKE \'hello?%\'' => 
+    array (
+      'result' => 
+      array (
+        5 => 
+        PHPStan\Type\Constant\ConstantArrayType::__set_state(array(
+           'allArrays' => NULL,
+           'nextAutoIndexes' => 
+          array (
+            0 => 1,
+          ),
+           'keyTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+               'value' => 'adaid',
+               'isClassString' => false,
+            )),
+            1 => 
+            PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+               'value' => 0,
+            )),
+          ),
+           'valueTypes' => 
+          array (
+            0 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+            1 => 
+            PHPStan\Type\IntegerRangeType::__set_state(array(
+               'min' => -32768,
+               'max' => 32767,
+            )),
+          ),
+           'optionalKeys' => 
+          array (
+          ),
+           'keyType' => 
+          PHPStan\Type\UnionType::__set_state(array(
+             'sortedTypes' => true,
+             'types' => 
+            array (
+              0 => 
+              PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
+                 'value' => 0,
+              )),
+              1 => 
+              PHPStan\Type\Constant\ConstantStringType::__set_state(array(
+                 'value' => 'adaid',
+                 'isClassString' => false,
+              )),
+            ),
+          )),
+           'itemType' => 
+          PHPStan\Type\IntegerRangeType::__set_state(array(
+             'min' => -32768,
+             'max' => 32767,
+          )),
+        )),
+      ),
+    ),
     'SELECT akid FROM ak WHERE eadavk>1.0' => 
     array (
       'result' => 
diff --git a/tests/default/data/pdo-prepare.php b/tests/default/data/pdo-prepare.php
index d9fa9b9e6..dfb773d39 100644
--- a/tests/default/data/pdo-prepare.php
+++ b/tests/default/data/pdo-prepare.php
@@ -49,7 +49,7 @@ public function queryBranches(PDO $pdo, bool $bool)
 
     public function placeholderInData(PDO $pdo)
     {
-        $query = 'SELECT adaid FROM ada WHERE email LIKE "hello?%"';
+        $query = "SELECT adaid FROM ada WHERE email LIKE 'hello?%'";
         $stmt = $pdo->prepare($query);
         assertType('PDOStatement<array{adaid: int<-32768, 32767>, 0: int<-32768, 32767>}>', $stmt);
         $stmt->execute();
diff --git a/tests/default/data/pdo.php b/tests/default/data/pdo.php
index 1a1f0d67f..a944d5681 100644
--- a/tests/default/data/pdo.php
+++ b/tests/default/data/pdo.php
@@ -158,7 +158,7 @@ public function aggregateFunctions(PDO $pdo)
 
     public function placeholderInData(PDO $pdo)
     {
-        $query = 'SELECT adaid FROM ada WHERE email LIKE "hello?%"';
+        $query = "SELECT adaid FROM ada WHERE email LIKE 'hello?%'";
         $stmt = $pdo->query($query, PDO::FETCH_ASSOC);
         assertType('PDOStatement<array{adaid: int<-32768, 32767>}>', $stmt);
 
diff --git a/tests/rules/config/.phpunit-phpstan-dba-mysqli.cache b/tests/rules/config/.phpunit-phpstan-dba-mysqli.cache
index 6f22efca3..75a2ef2a0 100644
--- a/tests/rules/config/.phpunit-phpstan-dba-mysqli.cache
+++ b/tests/rules/config/.phpunit-phpstan-dba-mysqli.cache
@@ -16,112 +16,6 @@
          'code' => 1064,
       )),
     ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            FOR UPDATE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            FOR UPDATE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET \'1\'
-            FOR SHARE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET \'1\'
-            FOR UPDATE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET 1
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\',  \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT   \'1\',     \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\' AND email LIKE \'%@example%\'
-            LIMIT        1
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\' AND email LIKE NULL
-            LIMIT        1
-        ' => 
-    array (
-      'error' => NULL,
-    ),
     '
             SELECT email adaid
             WHERE gesperrt = \'1\' AND email LIKE \'%@example.com\'
@@ -297,6 +191,10 @@
     array (
       'error' => NULL,
     ),
+    'SELECT adaid FROM ada WHERE email LIKE \'hello?%\'' => 
+    array (
+      'error' => NULL,
+    ),
     'SELECT adaid FROM ada WHERE email LIKE \'some strange string - :gesperrt it is\'' => 
     array (
       'error' => NULL,
@@ -362,11 +260,6 @@
     array (
       'error' => NULL,
     ),
-    'SELECT email, adaid, gesperrt, freigabe1u1 FROM ada
-            WHERE (gesperrt=\'1\' AND freigabe1u1=1) OR (gesperrt=\'1\' AND freigabe1u1=0)' => 
-    array (
-      'error' => NULL,
-    ),
     'SELECT email, adaid, gesperrt, freigabe1u1 FROM ada  LIMIT 1' => 
     array (
       'error' => NULL,
diff --git a/tests/rules/config/.phpunit-phpstan-dba-pdo.cache b/tests/rules/config/.phpunit-phpstan-dba-pdo.cache
index 14d33811c..7d108be0f 100644
--- a/tests/rules/config/.phpunit-phpstan-dba-pdo.cache
+++ b/tests/rules/config/.phpunit-phpstan-dba-pdo.cache
@@ -16,112 +16,6 @@
          'code' => '42000',
       )),
     ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            FOR UPDATE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            FOR UPDATE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET \'1\'
-            FOR SHARE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET \'1\'
-            FOR UPDATE
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\'
-            OFFSET 1
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT        \'1\',  \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\'
-            LIMIT   \'1\',     \'1\'
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\' AND email LIKE \'%@example%\'
-            LIMIT        1
-        ' => 
-    array (
-      'error' => NULL,
-    ),
-    '
-            SELECT email, adaid
-            FROM ada
-            WHERE gesperrt = \'1\' AND email LIKE NULL
-            LIMIT        1
-        ' => 
-    array (
-      'error' => NULL,
-    ),
     '
             SELECT email adaid
             WHERE gesperrt = \'1\' AND email LIKE \'%@example.com\'
@@ -297,6 +191,10 @@
     array (
       'error' => NULL,
     ),
+    'SELECT adaid FROM ada WHERE email LIKE \'hello?%\'' => 
+    array (
+      'error' => NULL,
+    ),
     'SELECT adaid FROM ada WHERE email LIKE \'some strange string - :gesperrt it is\'' => 
     array (
       'error' => NULL,
@@ -362,11 +260,6 @@
     array (
       'error' => NULL,
     ),
-    'SELECT email, adaid, gesperrt, freigabe1u1 FROM ada
-            WHERE (gesperrt=\'1\' AND freigabe1u1=1) OR (gesperrt=\'1\' AND freigabe1u1=0)' => 
-    array (
-      'error' => NULL,
-    ),
     'SELECT email, adaid, gesperrt, freigabe1u1 FROM ada  LIMIT 1' => 
     array (
       'error' => NULL,
diff --git a/tests/rules/data/syntax-error-in-prepared-statement.php b/tests/rules/data/syntax-error-in-prepared-statement.php
index 99e837226..833973c7d 100644
--- a/tests/rules/data/syntax-error-in-prepared-statement.php
+++ b/tests/rules/data/syntax-error-in-prepared-statement.php
@@ -152,7 +152,7 @@ public function noErrorOnTraillingSemicolon(Connection $connection)
 
     public function noErrorOnPlaceholderInData(Connection $connection)
     {
-        $query = 'SELECT adaid FROM ada WHERE email LIKE "hello?%"';
+        $query = "SELECT adaid FROM ada WHERE email LIKE 'hello?%'";
         $connection->preparedQuery($query, []);
 
         $query = "SELECT adaid FROM ada WHERE email LIKE '%questions ?%'";