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https://issues.apache.org/jira/browse/PHOENIX-6428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17309740#comment-17309740
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Lars Hofhansl commented on PHOENIX-6428:
----------------------------------------
I see.
{code}
explain select * from test.table_with_varchar where id in(select id from
test.table_with_char);
+----------------------------------------------------------------------------------+
| PLAN
|
+----------------------------------------------------------------------------------+
| CLIENT 1-CHUNK PARALLEL 1-WAY ROUND ROBIN FULL SCAN OVER
TEST.TABLE_WITH_VARCHAR |
| SERVER FILTER BY FIRST KEY ONLY
|
| SKIP-SCAN-JOIN TABLE 0
|
| CLIENT 1-CHUNK PARALLEL 1-WAY FULL SCAN OVER TEST.TABLE_WITH_CHAR
|
| SERVER FILTER BY FIRST KEY ONLY
|
| SERVER AGGREGATE INTO ORDERED DISTINCT ROWS BY [ID]
|
| DYNAMIC SERVER FILTER BY TEST.TABLE_WITH_VARCHAR.ID IN
(TO_VARCHAR($41.$43)) |
+----------------------------------------------------------------------------------+
7 rows selected (0.128 seconds)
{code}
It's probably the {{SERVER AGGREGATE INTO ORDERED DISTINCT ROWS BY [ID]}} step
that is causing this.
> Phoenix select subquery doesn't work on VARCHAR and CHAR types
> --------------------------------------------------------------
>
> Key: PHOENIX-6428
> URL: https://issues.apache.org/jira/browse/PHOENIX-6428
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 4.14.3, 4.16.0, 4.17.0
> Reporter: Sandeep Pal
> Priority: Major
>
> Phoenix select subquery doesn't work on VARCHAR and CHAR types in two tables
> when column with type `CHAR(N)` as value lesser than N bytes. .
> Steps to reproduce:
> CREATE TABLE TEST.TABLE_WITH_VARCHAR (ID VARCHAR NOT NULL,CONSTRAINT PK
> PRIMARY KEY (ID));
> CREATE TABLE TEST.TABLE_WITH_CHAR (ID CHAR(15) NOT NULL,CONSTRAINT PK PRIMARY
> KEY (ID));
>
> UPSERT INTO TEST.TABLE_WITH_VARCHAR(ID) VALUES ('00000000000000');
> UPSERT INTO TEST.TABLE_WITH_CHAR(ID) VALUES ('00000000000000');
>
> select * from test.table_with_varchar where id not in (select id from
> test.table_with_char);
>
> {code:java}
> 0: jdbc:phoenix:localhost:56632> CREATE TABLE TEST.TABLE_WITH_VARCHAR (ID
> VARCHAR NOT NULL,CONSTRAINT PK PRIMARY KEY (ID));
> No rows affected (2.354 seconds)
> 0: jdbc:phoenix:localhost:56632> CREATE TABLE TEST.TABLE_WITH_CHAR (ID
> CHAR(15) NOT NULL,CONSTRAINT PK PRIMARY KEY (ID));
> No rows affected (2.254 seconds)
> 0: jdbc:phoenix:localhost:52919> UPSERT INTO TEST.TABLE_WITH_VARCHAR(ID)
> VALUES ('00000000000000');
> 1 row affected (0.041 seconds)
> 0: jdbc:phoenix:localhost:52919> UPSERT INTO TEST.TABLE_WITH_CHAR(ID) VALUES
> ('00000000000000');
> 1 row affected (0.004 seconds)
> 0: jdbc:phoenix:localhost:52919> select * from test.table_with_varchar where
> id not in (select id from test.table_with_char);
> +----------------+
> | ID |
> +----------------+
> | 00000000000000 |
> +----------------+
> 1 row selected (0.109 seconds)
> 0: jdbc:phoenix:localhost:52919> UPSERT INTO TEST.TABLE_WITH_CHAR(ID) VALUES
> ('ABC');
> 1 row affected (0.005 seconds)
> 0: jdbc:phoenix:localhost:52919> UPSERT INTO TEST.TABLE_WITH_VARCHAR(ID)
> VALUES ('ABC');
> 1 row affected (0.006 seconds)
> 0: jdbc:phoenix:localhost:52919> select * from test.table_with_varchar where
> id not in (select id from test.table_with_char);
> +----------------+
> | ID |
> +----------------+
> | 00000000000000 |
> | ABC |
> +----------------+
> 2 rows selected (0.026 seconds)
> 0: jdbc:phoenix:localhost:52919> select * from test.table_with_char;
> +----------------+
> | ID |
> +----------------+
> | 00000000000000 |
> | ABC |
> +----------------+
> 2 rows selected (0.013 seconds)
> 0: jdbc:phoenix:localhost:52919> select * from test.table_with_varchar;
> +----------------+
> | ID |
> +----------------+
> | 00000000000000 |
> | ABC |
> +----------------+
> 2 rows selected (0.011 seconds)
> 0: jdbc:phoenix:localhost:52919> select * from test.table_with_varchar where
> id in (select id from test.table_with_char);
> +----+
> | ID |
> +----+
> +----+{code}
> This returns empty.
>
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