Redshift是否支持java.sql.DatabaseMetaData？

Question

I am trying to use java.sql.DatabaseMetaData to find out about what tables exist on a redshift cluster.

ResultSet rs = md.getTables(null, "public", "mytable", null);

returns nothing, even though I can see that the table exists.

I've hunted for documentation about whether Redshift supports java.sql.DatabaseMetaData but I can't find any.

I am using the latest driver

<dependency>
    <groupId>com.amazon.redshift</groupId>
    <artifactId>redshift-jdbc42</artifactId>
    <version>1.2.10.1009</version>
</dependency>

Many thanks for your help!

Answer 1

Ah! Mystery solved. It seems that it was a question of upper and lower case.

When I created my table, it had some upper case in it - MY_table and

select * from MY_table

worked fine.

But internally redshift stored the table name as my_table , all lowercase, so I wasn't getting a match when trying to find MY_table