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Posted to issues@ignite.apache.org by "Semen Boikov (JIRA)" <ji...@apache.org> on 2016/07/08 11:28:11 UTC

[jira] [Updated] (IGNITE-3448) Wrong count returned by count distinct and similar queries.

     [ https://issues.apache.org/jira/browse/IGNITE-3448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Semen Boikov updated IGNITE-3448:
---------------------------------
    Component/s: SQL

> Wrong count returned by count distinct and similar queries.
> -----------------------------------------------------------
>
>                 Key: IGNITE-3448
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3448
>             Project: Ignite
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Alexei Scherbakov
>
> Partitioned cache is deployed on 3 nodes.
> The code below outputs incorrect counts: 
> 14
> 14
> {code}
>        IgniteCache<Integer, Value> cache = grid(0).cache(null);
>         cache.put(0, new Value("v1"));
>         cache.put(3, new Value("v1"));
>         cache.put(5, new Value("v1"));
>         cache.put(9, new Value("v1"));
>         cache.put(1, new Value("v3"));
>         cache.put(15, new Value("v3"));
>         cache.put(8, new Value("v3"));
>         cache.put(2, new Value("v5"));
>         cache.put(12, new Value("v5"));
>         cache.put(4, new Value("v2"));
>         cache.put(6, new Value("v2"));
>         cache.put(7, new Value("v6"));
>         cache.put(10, new Value("v7"));
>         cache.put(11, new Value("v8"));
>         cache.put(13, new Value("v4"));
>         cache.put(14, new Value("v4"));
>         QueryCursor<List<?>> qry = cache.query(new SqlFieldsQuery("select count(distinct str) from Value"));
>         for (List<?> objects : qry)
>             System.out.println(objects.get(0));
>         qry = cache.query(new SqlFieldsQuery("select count(*) from (select 1 from Value group by str)"));
>         for (List<?> objects : qry)
>             System.out.println(objects.get(0));
>        
> {code}



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