/**
  * Compile a drop primary key command.
  *
  * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
  * @param  \Illuminate\Support\Fluent  $command
  * @return string
  */
 public function compileDropPrimary(Blueprint $blueprint, Fluent $command)
 {
     $table = $blueprint->getTable();
     $table = $this->wrapTable($blueprint);
     return "alter table {$table} drop constraint {$command->index}";
 }
 /**
  * Compile a drop primary key command.
  *
  * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
  * @param  \Illuminate\Support\Fluent  $command
  * @return string
  */
 public function compileDropPrimary(Blueprint $blueprint, Fluent $command)
 {
     $table = $blueprint->getTable();
     return 'alter table ' . $this->wrapTable($blueprint) . " drop constraint {$table}_pkey";
 }