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> From : Jonathan Haddad
> To :
> Date : Mon, 28 May 2018 00:07:36 +0430
> Subject : Re: cassandra update vs insert + delete
> Forwarded message
>
> > What is a “soft delete”?
> >
>
8年5月28日 14:42
收件人: user <user@cassandra.apache.org>
主题: Fwd: 答复: Re: cassandra update vs insert + delete
It seems that i can't update a part of primary key in cqlsh update:
message "PRIMARY Key part column found in SET part"
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er@cassandra.apache.org
Date : Mon, 28 May 2018 11:04:06 +0430
Subject : 答复: Re: cassandra update vs insert + delete
Forwarded message
Yes, you are correct.
Best Regards,
倪项菲/ David Ni
中移德电网络科技有限公司
Virtue Intelligent Network Ltd, co.
Add: 2003,20F No.35 Luo
<user@cassandra.apache.org>
主题: Fwd: Re: cassandra update vs insert + delete
How update is working underneath?
Does it create a new row (because i'm changing a column of partition key) and
add a tombstone to the old row?
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org
Date : Mon, 28 May 2018 00:07:36 +0430
Subject : Re: cassandra update vs insert + delete
Forwarded message
What is a “soft delete”?
My 2 cents, if you want to update some information just update it. There’s no
need to overthink it.
Batches are good if they
What is a “soft delete”?
My 2 cents, if you want to update some information just update it. There’s
no need to overthink it.
Batches are good if they’re constrained to a single partition, not so hot
otherwise.
On Sun, May 27, 2018 at 8:19 AM Rahul Singh
wrote:
>
Deletes create tombstones — not really something to consider. Better to add /
update or insert data and do a soft delete on old data and apply a TTL to
remove it at a future time.
--
Rahul Singh
rahul.si...@anant.us
Anant Corporation
On May 27, 2018, 5:36 AM -0400, onmstester onmstester
Hi
I want to load all rows from many partitions and change a column value in each
row, which of following ways is better concerning disk space and performance?
1. create a update statement for every row and batch update for each partitions
2. create an insert statement for every row and batch