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https://issues.apache.org/jira/browse/PHOENIX-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pedro Gandola updated PHOENIX-2597:
-----------------------------------
Description:
I've noticed that Phoenix (using version 4.4) when querying a view it does not
consider the original table local indexes to optimise the query.
If I explain my query over the original table it's using the local index
properly:
{code:sql}
EXPLAIN SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;
CLIENT 300-CHUNK PARALLEL 300-WAY RANGE SCAN OVER _LOCAL_IDX_BIDDING_EVENTS
[-32768]
SERVER FILTER BY "WTS" IS NOT NULL
{code}
However, If I create a view using the exact same query and explain I get a full
scan.
{code:sql}
CREATE VIEW WINS_VIEW AS SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;
EXPLAIN SELECT * FROM WINS_VIEW;
CLIENT 300-CHUNK PARALLEL 1-WAY FULL SCAN OVER BIDDING_EVENTS
SERVER FILTER BY WTS IS NOT NULL
{code}
Version 4.7-SNAPSHOT is affected as well.
was:
I've noticed that Phoenix (using version 4.4) when querying a view it does not
consider the original table local indexes to optimise the query.
If I explain my query over the original table it's using the local index
properly:
{code:sql}
EXPLAIN SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;
CLIENT 300-CHUNK PARALLEL 300-WAY RANGE SCAN OVER _LOCAL_IDX_BIDDING_EVENTS
[-32768]
SERVER FILTER BY "WTS" IS NOT NULL
{code}
However, If I create a view using the exact same query and explain I get a full
scan.
{code:sql}
CREATE VIEW WINS_VIEW AS SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;
EXPLAIN SELECT * FROM WINS_VIEW;
CLIENT 300-CHUNK PARALLEL 1-WAY FULL SCAN OVER BIDDING_EVENTS
SERVER FILTER BY WTS IS NOT NULL
{code}
Version 4.7 is affected as well.
> Local Indexes are not used to query views
> -----------------------------------------
>
> Key: PHOENIX-2597
> URL: https://issues.apache.org/jira/browse/PHOENIX-2597
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.4.0, 4.7.0
> Reporter: Pedro Gandola
>
> I've noticed that Phoenix (using version 4.4) when querying a view it does
> not consider the original table local indexes to optimise the query.
> If I explain my query over the original table it's using the local index
> properly:
> {code:sql}
> EXPLAIN SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;
> CLIENT 300-CHUNK PARALLEL 300-WAY RANGE SCAN OVER _LOCAL_IDX_BIDDING_EVENTS
> [-32768]
> SERVER FILTER BY "WTS" IS NOT NULL
> {code}
> However, If I create a view using the exact same query and explain I get a
> full scan.
> {code:sql}
> CREATE VIEW WINS_VIEW AS SELECT * FROM BIDDING_EVENTS WHERE wTs IS NOT NULL;
> EXPLAIN SELECT * FROM WINS_VIEW;
> CLIENT 300-CHUNK PARALLEL 1-WAY FULL SCAN OVER BIDDING_EVENTS
> SERVER FILTER BY WTS IS NOT NULL
> {code}
> Version 4.7-SNAPSHOT is affected as well.
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