* Implement test for single column indices (Daan Middendorp)
 * Fix single column index altering (Daan Middendorp)
 * Fix deletion of indices and test (Daan Middendorp)
 * Solve index naming issue (Daan Middendorp)
 * Test update indexes (Daan Middendorp)
 * Fix altering of indexes (Daan Middendorp)
 * Solved imported unittests for previous commit (Daan Middendorp)
 * Fix showIndexes function (Daan Middendorp)
 * Fix bigint (jannyHou)