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Posted to dev@orc.apache.org by Zoltán Rátkai <zr...@cloudera.com.INVALID> on 2023/02/24 14:32:13 UTC

Row level filter question, ORC-743, ORC-577

Hi All,

I have question to this ticket:
https://issues.apache.org/jira/browse/ORC-743

As I see this uses the row level filter introduced here:
https://issues.apache.org/jira/browse/ORC-577

My question is setting search argument is sufficient to enable row level
filtering  (enabling lazy IO) ?

Many thanks,

Zoltán Rátkai

Re: Row level filter question, ORC-743, ORC-577

Posted by Pavan Lanka <pl...@apple.com.INVALID>.

Hi Zoltan,

There are a few configuration properties that need to be enabled for activating LazyIO, the defaults are off

https://orc.apache.org/develop/design/lazy_filter/#Configurationhttps://github.com/apache/orc/blob/main/java/core/src/java/org/apache/orc/OrcConf.java#L179


> On Feb 24, 2023, at 6:32 AM, Zoltán Rátkai <zr...@cloudera.com.INVALID> wrote:
> 
> Hi All,
> 
> I have question to this ticket:
> https://issues.apache.org/jira/browse/ORC-743
> 
> As I see this uses the row level filter introduced here:
> https://issues.apache.org/jira/browse/ORC-577
> 
> My question is setting search argument is sufficient to enable row level
> filtering  (enabling lazy IO) ?
> 
> Many thanks,
> 
> Zoltán Rátkai