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Posted to issues@impala.apache.org by "Matthew Jacobs (JIRA)" <ji...@apache.org> on 2017/08/19 16:49:01 UTC
[jira] [Resolved] (IMPALA-5698) Predicates with constant folded
exprs don't get pushed to Kudu scans
[ https://issues.apache.org/jira/browse/IMPALA-5698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthew Jacobs resolved IMPALA-5698.
------------------------------------
Resolution: Won't Fix
Fix Version/s: Product Backlog
> Predicates with constant folded exprs don't get pushed to Kudu scans
> --------------------------------------------------------------------
>
> Key: IMPALA-5698
> URL: https://issues.apache.org/jira/browse/IMPALA-5698
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 2.8.0
> Reporter: Matthew Jacobs
> Labels: kudu
> Fix For: Product Backlog
>
>
> Predicates with expressions that get constant folded don't get pushed to Kudu scans even though they could be. E.g.:
> {code}
> [localhost:21000] > explain select * from functional_kudu.alltypestiny where bigint_col < 1000 / 100;
> Query: explain select * from functional_kudu.alltypestiny where bigint_col < 1000 / 100
> +---------------------------------------------+
> | Explain String |
> +---------------------------------------------+
> | Per-Host Resource Reservation: Memory=0B |
> | Per-Host Resource Estimates: Memory=10.00MB |
> | Codegen disabled by planner |
> | |
> | PLAN-ROOT SINK |
> | | |
> | 00:SCAN KUDU [functional_kudu.alltypestiny] |
> | predicates: bigint_col < 10 |
> +---------------------------------------------+
> Fetched 8 row(s) in 0.08s
> [localhost:21000] > explain select * from functional_kudu.alltypestiny where bigint_col < 10;
> Query: explain select * from functional_kudu.alltypestiny where bigint_col < 10
> +---------------------------------------------+
> | Explain String |
> +---------------------------------------------+
> | Per-Host Resource Reservation: Memory=0B |
> | Per-Host Resource Estimates: Memory=10.00MB |
> | Codegen disabled by planner |
> | |
> | PLAN-ROOT SINK |
> | | |
> | 00:SCAN KUDU [functional_kudu.alltypestiny] |
> | kudu predicates: bigint_col < 10 |
> +---------------------------------------------+
> Fetched 8 row(s) in 0.05s
> {code}
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