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Date: Wed, 23 Feb 2011 19:49:36 +0530
Message-ID: <AANLkTikk15+e4Fy5JsvjqUv3Kc2AWtCrGKKVRWLiozba@mail.gmail.com>
Subject: Re: Is it possible to get list of row keys?
From: Roshan Dawrani <roshandawrani@gmail.com>
To: user@cassandra.apache.org
Cc: Ching-Cheng Chen <cchen@evidentsoftware.com>,
 Norman Maurer <norman@apache.org>
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On Wed, Feb 23, 2011 at 7:17 PM, Ching-Cheng Chen <cchen@evidentsoftware.com
> wrote:

> Actually, if you want to get ALL keys, I believe you can still use
> RangeSliceQuery with RP.
>
> Just use setKeys("","") as first batch call.
>
> Then use the last key from previous batch as startKey for next batch.
> Beware that since startKey is inclusive, so you'd need to ignore first key
> from now on.
>
> Keep going until you finish all batches.  You will know you'd need to stop
> when setKeys(key_xyz,"") return you only one key.
>

This is what I meant to suggest when I earlier said "So, if you want all,
you will need to keep paging forward and collecting the keys." :-)

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<div class=3D"gmail_quote">On Wed, Feb 23, 2011 at 7:17 PM, Ching-Cheng Che=
n <span dir=3D"ltr">&lt;<a href=3D"mailto:cchen@evidentsoftware.com">cchen@=
evidentsoftware.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quo=
te" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;=
">
Actually, if you want to get ALL keys, I believe you can still use RangeSli=
ceQuery with RP.<div><br></div><div>Just use setKeys(&quot;&quot;,&quot;&qu=
ot;) as first batch call.</div><div><br></div><div>Then use the last key fr=
om previous batch as startKey for next batch. =A0 Beware that since startKe=
y is inclusive, so you&#39;d need to ignore first key from now on.</div>

<div><br></div><div>Keep going until you finish all batches. =A0You will kn=
ow you&#39;d need to stop when setKeys(key_xyz,&quot;&quot;) return you onl=
y one key.</div></blockquote><div><br></div><div>This is what I meant to su=
ggest when I earlier said &quot;<span class=3D"Apple-style-span" style=3D"b=
order-collapse: collapse; font-family: arial, sans-serif; font-size: 13px; =
">So, if you want all, you will need to keep paging forward and collecting =
the keys.</span>&quot; :-)</div>
</div>

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