Fix #20195 Do not set parts of ColumnSchema->dbType values into Colum…

…nSchema->type for mssql less then version 2017

framework/CHANGELOG.md

@@ -4,6 +4,7 @@ Yii Framework 2 Change Log
 2.0.51 under development
 ------------------------
 
+- Bug #20195: Do not set non abstract values into ColumnSchema->type on mssql version less then 2017 (axeltomasson)
 - Bug #20191: Fix `ActiveRecord::getDirtyAttributes()` for JSON columns with multi-dimensional array values (brandonkelly)
 - Bug #20175: Fix bad result for pagination when used with GridView (@lav45)
 

framework/db/mssql/Schema.php

@@ -408,7 +408,15 @@ protected function loadColumnSchema($info)
                 }
 
                 if ($isVersion2017orLater === false) {
-                    $column->type = $this->booleanTypeLegacy($column->size, $type);
+                    if ($column->size === 1 && ($type === 'tinyint' || $type === 'bit')) {
+                        $column->type = 'boolean';
+                    } elseif ($type === 'bit') {
+                        if ($column->size > 32) {
+                            $column->type = 'bigint';
+                        } elseif ($column->size === 32) {
+                            $column->type = 'integer';
+                        }
+                    }
                 }
             }
         }
@@ -816,26 +824,4 @@ public function createColumnSchemaBuilder($type, $length = null)
         return Yii::createObject(ColumnSchemaBuilder::className(), [$type, $length, $this->db]);
     }
 
-    /**
-     * Assigns a type boolean for the column type bit, for legacy versions of MSSQL.
-     *
-     * @param int $size column size.
-     * @param string $type column type.
-     *
-     * @return string column type.
-     */
-    private function booleanTypeLegacy($size, $type)
-    {
-        if ($size === 1 && ($type === 'tinyint' || $type === 'bit')) {
-            return 'boolean';
-        } elseif ($type === 'bit') {
-            if ($size > 32) {
-                return 'bigint';
-            } elseif ($size === 32) {
-                return 'integer';
-            }
-        }
-
-        return $type;
-    }
 }