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From 沈宗强 (JIRA) <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-3753) The salt index affects the query plan of the non-salt table
Date Mon, 27 Mar 2017 06:45:42 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-3753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

沈宗强 updated PHOENIX-3753:
-------------------------
    Attachment: PHOENIX-3753_v1.patch

When selecting the optimal query plan, if the length of the bound PK column is the same, you
should determine whether salted

> The salt index affects the query plan of the non-salt table
> -----------------------------------------------------------
>
>                 Key: PHOENIX-3753
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3753
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.9.0
>            Reporter: 沈宗强
>         Attachments: PHOENIX-3753_v1.patch
>
>
> The salt index affects the query plan of the non-salt table,
> Can be reproduced by the following example:
> 1.Create table:
> CREATE TABLE IF NOT EXISTS test1 (
> 	date varchar NOT NULL,
>  	cust_id INTEGER NOT NULL,
>  	agent_id INTEGER,
>  	pay BIGINT,
>  	click BIGINT,
>  	pv BIGINT,
>  	CONSTRAINT pk PRIMARY KEY (date, cust_id)
> );
> 2.Create index:
> CREATE INDEX ix_test1 ON test1(agent_id) INCLUDE (pay, click) SALT_BUCKETS = 10;
> 3.Explain query:
> EXPLAIN SELECT SUM(pay), SUM(click) FROM test1 WHERE DATE = '2017-01-01';
> 4.Expected result:
> +---------------------------------------------------------------------+
> |                                PLAN                                 |
> +---------------------------------------------------------------------+
> | CLIENT 1-CHUNK PARALLEL 1-WAY RANGE SCAN OVER TEST1 ['2017-01-01']  |
> |     SERVER AGGREGATE INTO SINGLE ROW                                |
> +---------------------------------------------------------------------+
> 5.Actual results:
> +---------------------------------------------------------------------+
> |                                PLAN                                 |
> +---------------------------------------------------------------------+
> | CLIENT 10-CHUNK PARALLEL 10-WAY RANGE SCAN OVER IX_TEST1 [0] - [9]  |
> |     SERVER FILTER BY "DATE" = '2017-01-01'                          |
> |     SERVER AGGREGATE INTO SINGLE ROW                                |
> +---------------------------------------------------------------------+



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