Re: [PATCHES] WIP: bitmap indexes

On 8/17/06 12:29 PM, "Tom Lane"  wrote:

> "Jie Zhang"  writes:
>> This sounds good. Another problem is about ScalarArrayOpExpr support in
>> current nodeBitmapIndexscan. This will not work for stream bitmaps.
> 
> Sure it will; it's just an OR.
> 

Yes, it is just an OR. But we have to introduce an OR logic in
nodeBitmapIndexscan node for stream bitmaps. We can't do what it is done
right now: scanning the underline index one key at a time. We have to scan
the underline index for all keys at the same time. It seems simply that we
just introduce another BitmapOr in the path.

Thanks,
Jie