[jira] [Commented] (DRILL-7472) Complex queries on INFORMATION_SCHEMA fail when `planner.slice_target`is small

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-7472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16993720#comment-16993720 ] 

ASF GitHub Bot commented on DRILL-7472:
---------------------------------------

arina-ielchiieva commented on pull request #1925: DRILL-7472: Fix ser / de for sys and information_schema schemas queries
URL: https://github.com/apache/drill/pull/1925
 
 
   Jira - [DRILL-7472](https://issues.apache.org/jira/browse/DRILL-7472).
 
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


> Complex queries on INFORMATION_SCHEMA fail when `planner.slice_target`is small
> ------------------------------------------------------------------------------
>
>                 Key: DRILL-7472
>                 URL: https://issues.apache.org/jira/browse/DRILL-7472
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.16.0
>            Reporter: Vova Vysotskyi
>            Assignee: Arina Ielchiieva
>            Priority: Major
>             Fix For: 1.17.0
>
>
> Set small value for slice_target:
> {code:sql}
> alter session set `planner.slice_target`=1;
> {code}
> Run query on INFORMATION_SCHEMA:
> {code:sql}
> select * from information_schema.`tables` where TABLE_NAME='lineitem' order by TABLE_NAME;
> {code}
> It will fail with the following exception:
> {noformat}
> Error: SYSTEM ERROR: InvalidDefinitionException: Cannot construct instance of `org.apache.drill.exec.store.ischema.InfoSchemaFilter$ExprNode` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
>  at [Source: (String)"{
>   "pop" : "hash-partition-sender",
>   "@id" : 0,
>   "receiver-major-fragment" : 2,
>   "child" : {
>     "pop" : "InfoSchemaSubScan",
>     "@id" : 1,
>     "table" : "TABLES",
>     "filter" : {
>       "exprRoot" : {
>         "type" : "FUNCTION",
>         "function" : "equal",
>         "args" : [ {
>           "type" : "FIELD",
>           "field" : "TABLE_NAME"
>         }, {
>           "type" : "CONSTANT",
>           "value" : "lineitem"
>         } ]
>       }
>     },
>     "initialAllocation" : 1000000,
>     "maxAllocat"[truncated 681 chars]; line: 11, column: 9] (through reference chain: org.apache.drill.exec.physical.config.HashPartitionSender["child"]->org.apache.drill.exec.store.ischema.InfoSchemaSubScan["filter"]->org.apache.drill.exec.store.ischema.InfoSchemaFilter["exprRoot"])
> {noformat}
> Even when deserialization is fixed, it will fail when creating InfoSchemaBatchCreator:
> {noformat}
> java.lang.Exception: org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR: UnsupportedOperationException: Schema tree can only be created in root fragment. This is a non-root fragment.
> {noformat}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)