Fix changes from laravel/framework@1d58ce1

src/Jfelder/OracleDB/Query/Grammars/OracleGrammar.php

@@ -142,6 +142,20 @@ protected function compileUnions(Builder $query)
         return ltrim($sql);
     }
 
+    /**
+     * Compile an exists statement into SQL.
+     *
+     * @param \Illuminate\Database\Query\Builder $query
+     * @return string
+     */
+    public function compileExists(Builder $query)
+    {
+        $select = $this->compileSelect($query);
+
+        return "select t2.\"rn\" as {$this->wrap('exists')} from ( select rownum AS \"rn\", t1.* from ({$select}) t1 ) t2 where t2.\"rn\" between 1 and 1";
+    }
+
+
     /**
      * Compile the lock into SQL.
      *

tests/OracleDBQueryBuilderTest.php

@@ -685,8 +685,7 @@ public function testAggregateFunctions()
         $this->assertEquals(1, $results);
 
         $builder = $this->getOracleBuilder();
-        $builder->getConnection()->shouldReceive('select')->once()->with('select t2.* from ( select rownum AS "rn", t1.* from (select count(*) as aggregate from "users") t1 ) t2 where t2."rn" between 1 and 1', [], true)->andReturn([['aggregate' => 1]]);
-        $builder->getProcessor()->shouldReceive('processSelect')->once()->andReturnUsing(function ($builder, $results) { return $results; });
+        $builder->getConnection()->shouldReceive('select')->once()->with('select t2."rn" as "exists" from ( select rownum AS "rn", t1.* from (select * from "users") t1 ) t2 where t2."rn" between 1 and 1', [], true)->andReturn([["exists" => 1]]);
         $results = $builder->from('users')->exists();
         $this->assertTrue($results);