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Posted to dev@ignite.apache.org by "Alexei Scherbakov (JIRA)" <ji...@apache.org> on 2016/07/07 16:38:11 UTC
[jira] [Created] (IGNITE-3448) Wrong count returned by count
distinct and similar queries.
Alexei Scherbakov created IGNITE-3448:
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Summary: 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
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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