Thanks Mike.  That fixed it!.  

On Monday, May 23, 2016 at 10:18:15 AM UTC-4, Mike Bayer wrote:
>
>
>
> On 05/23/2016 10:12 AM, Brian Cherinka wrote: 
> > 
> > Hi, 
> > 
> > It seems like the ARRAY option zero_indexes=True is broken for 
> > 2-dimensional arrays.   Is this a bug that is fixed in 1.1?  I'm 
> > actually using the subclass ARRAY_D as a fix for the __getitem__ 
> > indexing.  It works for 1-D arrays. 
> > 
>
>
> if you're passing zero_indexes=True then that needs to be propagated to 
> the new ARRAY type being created inside of __getitem__.  The recipe 
> appears to miss this. 
>
> class ARRAY_D(ARRAY): 
>      class Comparator(ARRAY.Comparator): 
>          def __getitem__(self, index): 
>              super_ = super(ARRAY_D.Comparator, self).__getitem__(index) 
>              if not isinstance(index, slice) and self.type.dimensions > 1: 
>                  super_ = type_coerce( 
>                      super_, 
>                      ARRAY_D( 
>                          self.type.item_type, 
>                          dimensions=self.type.dimensions - 1, 
>                          zero_indexes=self.type.zero_indexes) 
>                  ) 
>              return super_ 
>      comparator_factory = Comparator 
>
> > 
> > *1-D array* 
> > wave = Column(ARRAY_D(Float, zero_indexes=True)) 
> > SQL 
> > | 
> > selectw.wavelength[17]fromdatadb.wavelength asw; 
> >  wavelength 
> > ------------ 
> >     3634.96 
> > (1row) 
> > | 
> > 
> > ORM - instance and class side 
> > | 
> > wave =session.query(datadb.Wavelength).first() 
> > wave.wavelength[16] 
> > 3634.96 
> > 
> > session.query(datadb.Wavelength.wavelength[16]).one() 
> > (3634.96) 
> > | 
> > 
> > 
> > *2-D array* 
> > value = Column(ARRAY_D(Float, dimensions=2, zero_indexes=True)) 
> > SQL 
> > || 
> > | 
> > selecte.value[17][18]from dapdb.emline ase limit 1; 
> > 
> >        value 
> > ------------------- 
> >  4.962736845652115 
> > | 
> > 
> > ORM - instance and class side 
> > || 
> > | 
> > # correct value on instance side 
> > emline=session.query(dapdb.EmLine).first() 
> > emline.value[16][17] 
> > 4.962736845652115 
> > 
> > # expected correct indexing - wrong value 
> > session.query(dapdb.EmLine.value[16][17]).first() 
> > (4.8138361075679565) 
> > 
> > # both "1-indexed" - wrong value 
> > session.query(dapdb.EmLine.value[17][18]).first() 
> > (5.380134788537585) 
> > 
> > # first index is correct, but second is incremented by 1 - correct value 
> > session.query(dapdb.EmLine.value[16][18]).first() 
> > (4.962736845652115) 
> > | 
> > 
> > Cheers, Brian 
> > 
> > -- 
>
>

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