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From "Pavel Kuznetsov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-9606) JDBC getPrimaryKeys() returns wrong value for COLUMN_NAME
Date Wed, 10 Oct 2018 15:18:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-9606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16645133#comment-16645133
] 

Pavel Kuznetsov commented on IGNITE-9606:
-----------------------------------------

SQL tests run: https://ci.ignite.apache.org/viewQueued.html?itemId=2052728

> JDBC getPrimaryKeys() returns wrong value for COLUMN_NAME
> ---------------------------------------------------------
>
>                 Key: IGNITE-9606
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9606
>             Project: Ignite
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 2.6
>            Reporter: Pat Patterson
>            Assignee: Pavel Kuznetsov
>            Priority: Major
>             Fix For: 2.8
>
>
> JDBC {{getPrimaryKeys()}} method returns {{_KEY}} as column name rather than actual
column name. This breaks apps that expect a valid column name as the primary key.
> Trivially reproducible:
> {noformat}
>   public static void main(String[] args) throws Exception {
>     // Register JDBC driver.
>     Class.forName("org.apache.ignite.IgniteJdbcThinDriver");
>     // Open JDBC connection.
>     try (Connection conn = DriverManager.getConnection("jdbc:ignite:thin://127.0.0.1/"))
{
>       // Create database tables.
>       try (Statement stmt = conn.createStatement()) {
>         stmt.executeUpdate("CREATE TABLE TESTER (" + " ID LONG PRIMARY KEY, NAME VARCHAR)
" + " WITH \"template=replicated\"");
>       }
>       // Get database metadata
>       DatabaseMetaData md = conn.getMetaData();
>       // Get primary keys
>       ResultSet rs = md.getPrimaryKeys(conn.getCatalog(), "", "TESTER");
>       //
>       while (rs.next()) {
>         // Column 4 is COLUMN_NAME
>         System.out.println("Primary key column is " + rs.getString(4));
>       }
>     }
>   }
> {noformat}
> Expected output is:
> {noformat}
> Primary key column is ID
> {noformat}
> Actual output is:
> {noformat}
> Primary key column is _KEY
> {noformat}



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