[jira] [Created] (DRILL-7238) Drill does not use DirectScan for non-existent columns

["Venkata Jyothsna Donapati (JIRA)" <ji...@apache.org>]

Venkata Jyothsna Donapati created DRILL-7238:
------------------------------------------------

             Summary: Drill does not use DirectScan for non-existent columns
                 Key: DRILL-7238
                 URL: https://issues.apache.org/jira/browse/DRILL-7238
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Venkata Jyothsna Donapati
            Assignee: Venkata Jyothsna Donapati


This query does not use the summary metadata cache file:
select count(int_nulls_id), count(int_id), count(ss_ticket_number), count(extra) from store_sales_null_blocks_int;

In this query, extra is a column that does not exist (non-existent column).

Here is the explain plan:
{noformat}
| 00-00    Screen
00-01      Project(EXPR$0=[$0], EXPR$1=[$1], EXPR$2=[$2], EXPR$3=[$3])
00-02        StreamAgg(group=[{}], EXPR$0=[$SUM0($0)], EXPR$1=[$SUM0($1)], EXPR$2=[$SUM0($2)], EXPR$3=[$SUM0($3)])
00-03          UnionExchange
01-01            StreamAgg(group=[{}], EXPR$0=[COUNT($0)], EXPR$1=[COUNT($1)], EXPR$2=[COUNT($2)], EXPR$3=[COUNT($3)])
01-02              Scan(table=[[dfs, parquet_metadata_cache, store_sales_null_blocks_int]], groupscan=[ParquetGroupScan [entries=[ReadEntryWithPath [path=/drill/testdata/metadata_cache/store_sales_null_blocks_int]], selectionRoot=/drill/testdata/metadata_cache/store_sales_null_blocks_int, numFiles=1, numRowGroups=11, usedMetadataFile=true, cacheFileRoot=/drill/testdata/metadata_cache/store_sales_null_blocks_int, columns=[`int_nulls_id`, `int_id`, `ss_ticket_number`, `extra`]]])
{noformat}
This is a regression from Drill 1.15.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)