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https://issues.apache.org/jira/browse/PHOENIX-4725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494176#comment-16494176
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Shubham commented on PHOENIX-4725:
----------------------------------
In mysql as well, query is able to use INDEX from HINT with tablename as
parameter without schema name in it.
{code:java}
Connection url : jdbc:mysql://host:3306/testDB
Queries:
CREATE TABLE customers
( customer_id varchar(10) NOT NULL,
customer_name varchar(50) NOT NULL,
city varchar(50),
PRIMARY KEY (customer_id)
);
insert into customers values (1,'cust1', 'CF');
insert into customers values (2,'cust2', 'CF1');
insert into customers values (3,'cust3', 'CF2');
create index customers_idx on customers (city);
Explain Plan:
mysql> explain SELECT /*+ INDEX_DESC(customers customers_idx) */ *
-> FROM customers where city = 'CF';
+----+-------------+-----------+------+---------------+---------------+---------+-------+------+-------------+
| id | select_type | table | type | possible_keys | key | key_len
| ref | rows | Extra |
+----+-------------+-----------+------+---------------+---------------+---------+-------+------+-------------+
| 1 | SIMPLE | customers | ref | customers_idx | customers_idx | 53
| const | 1 | Using where |
+----+-------------+-----------+------+---------------+---------------+---------+-------+------+-------------+
1 row in set (0.00 sec)
{code}
> Hint part in a query does not take into account the "schema" which is passed
> in the JDBC connection string
> ----------------------------------------------------------------------------------------------------------
>
> Key: PHOENIX-4725
> URL: https://issues.apache.org/jira/browse/PHOENIX-4725
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.7.0
> Reporter: Pulkit Bhardwaj
> Assignee: Shubham
> Priority: Major
>
> If I connect to hbase via phoenix using a jdbc connection and specify the
> schema name in the connection, I would be able to do use the table names
> without having to specify the schema name in the query
> e.g
> {code:java}
> SELECT * from SCHEMA_NAME.TABLE_NAME{code}
> can we written as
> {code:java}
> SELECT * from TABLE_NAME{code}
> but
> let's say I want to pass a hint to use a particular index on the table
> {code:java}
> SELECT /*+ INDEX(SCHEMA_NAME.TABLE_NAME IDX_TABLE) */ * from TABLE_NAME{code}
> the above works, but if I remove the SCHEMA_NAME from inside the hint part,
> the query would not reconise the index
> in other words, the below would not work
> {code:java}
> SELECT /*+ INDEX(TABLE_NAME IDX_TABLE) */ * from TABLE_NAME{code}
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