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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2015/10/07 23:38:26 UTC
[jira] [Commented] (CALCITE-913) Avatica: transport of array fields
fails
[ https://issues.apache.org/jira/browse/CALCITE-913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14947643#comment-14947643 ]
Julian Hyde commented on CALCITE-913:
-------------------------------------
Can you try this on the latest master? I made some improvements to the handling of arrays in CALCITE-910.
> Avatica: transport of array fields fails
> ----------------------------------------
>
> Key: CALCITE-913
> URL: https://issues.apache.org/jira/browse/CALCITE-913
> Project: Calcite
> Issue Type: Bug
> Reporter: Bruno Dumon
> Assignee: Julian Hyde
>
> When using the avatica remote driver, reading a resultset which contains a non-null ARRAY-type field fails (both in json & protobuf).
> This can be reproduced by adding the following test to RemoteMetaTest.java:
> {noformat}
> @Test public void testArrays() throws SQLException {
> try (AvaticaConnection conn = (AvaticaConnection) DriverManager.getConnection(url);
> Statement stmt = conn.createStatement()) {
> ResultSet resultSet =
> stmt.executeQuery("select * from (values ('a', array['b', 'c']));");
> assertTrue(resultSet.next());
> }
> }
> {noformat}
> For example with json this gives the following error:
> {noformat}
> 2015-10-07 16:09:08.406:WARN:oejs.HttpChannel:qtp1931444790-20: /
> java.lang.RuntimeException: com.fasterxml.jackson.databind.JsonMappingException: Conflicting getter definitions for property "updateCount": org.hsqldb.result.Result#isUpdateCount(0 params) vs org.hsqldb.result.Result#getUpdateCount(0 params) (through reference chain: org.apache.calcite.avatica.remote.ExecuteResponse["results"]->java.util.ArrayList[0]->org.apache.calcite.avatica.remote.ResultSetResponse["firstFrame"]->org.apache.calcite.avatica.Frame["rows"]->java.util.ArrayList[0]->org.hsqldb.jdbc.JDBCArray["resultSet"]->org.hsqldb.jdbc.JDBCResultSet["result"])
> at org.apache.calcite.avatica.remote.JsonHandler.handle(JsonHandler.java:61)
> at org.apache.calcite.avatica.remote.JsonHandler.apply(JsonHandler.java:46)
> at org.apache.calcite.avatica.server.AvaticaHandler.handle(AvaticaHandler.java:66)
> at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> at org.eclipse.jetty.server.Server.handle(Server.java:497)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
> at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:245)
> at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
> at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
> at java.lang.Thread.run(Thread.java:745)
> Caused by:
> com.fasterxml.jackson.databind.JsonMappingException: Conflicting getter definitions for property "updateCount": org.hsqldb.result.Result#isUpdateCount(0 params) vs org.hsqldb.result.Result#getUpdateCount(0 params) (through reference chain: org.apache.calcite.avatica.remote.ExecuteResponse["results"]->java.util.ArrayList[0]->org.apache.calcite.avatica.remote.ResultSetResponse["firstFrame"]->org.apache.calcite.avatica.Frame["rows"]->java.util.ArrayList[0]->org.hsqldb.jdbc.JDBCArray["resultSet"]->org.hsqldb.jdbc.JDBCResultSet["result"])
> at com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:897)
> at com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:429)
> ...
> {noformat}
> The above is with hsqldb's array implementation. With another one it went into infinite recursion.
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