|  | @@ 537-544 (lines=8) @@ | 
                                                            
                                    | 534 |  |         $indexes = $this->getIndexes($tableName); | 
                                                            
                                    | 535 |  |         $columns = array_map('strtolower', $columns); | 
                                                            
                                    | 536 |  |  | 
                                                            
                                    | 537 |  |         foreach ($indexes as $indexName => $index) { | 
                                                            
                                    | 538 |  |             if ($columns == $index['columns']) { | 
                                                            
                                    | 539 |  |                 return new AlterInstructions([sprintf( | 
                                                            
                                    | 540 |  |                     'DROP INDEX %s', | 
                                                            
                                    | 541 |  |                     $this->quoteColumnName($indexName) | 
                                                            
                                    | 542 |  |                 )]); | 
                                                            
                                    | 543 |  |             } | 
                                                            
                                    | 544 |  |         } | 
                                                            
                                    | 545 |  |  | 
                                                            
                                    | 546 |  |         throw new \InvalidArgumentException(sprintf( | 
                                                            
                                    | 547 |  |             "The specified index on columns '%s' does not exist", | 
                                                                                
                                |  | @@ 560-567 (lines=8) @@ | 
                                                            
                                    | 557 |  |  | 
                                                            
                                    | 558 |  |         $indexes = $this->getIndexes($tableName); | 
                                                            
                                    | 559 |  |  | 
                                                            
                                    | 560 |  |         foreach ($indexes as $name => $index) { | 
                                                            
                                    | 561 |  |             if ($name === $indexName) { | 
                                                            
                                    | 562 |  |                 return new AlterInstructions([sprintf( | 
                                                            
                                    | 563 |  |                     'DROP INDEX %s', | 
                                                            
                                    | 564 |  |                     $this->quoteColumnName($indexName) | 
                                                            
                                    | 565 |  |                 )]); | 
                                                            
                                    | 566 |  |             } | 
                                                            
                                    | 567 |  |         } | 
                                                            
                                    | 568 |  |  | 
                                                            
                                    | 569 |  |         throw new \InvalidArgumentException(sprintf( | 
                                                            
                                    | 570 |  |             "The specified index name '%s' does not exist", |