Arina Ielchiieva created CALCITE-2514:
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Summary: Add SqlIdentifier conversion to ITEM operator for dynamic
tables in ExtendedExpander
Key: CALCITE-2514
URL: https://issues.apache.org/jira/browse/CALCITE-2514
Project: Calcite
Issue Type: Bug
Affects Versions: 1.17.0
Reporter: Arina Ielchiieva
Assignee: Julian Hyde
Fix For: 1.18.0
{{SqlIdentifier}} is not converted to ITEM operator for dynamic tables in
{{ExtendedExpander}} and thus query returns wrong results. Happens when
{{isGroupByAlias}} is set to true in SQL conformance.
Query example:
{noformat}
select n_regionkey, max(min(n_nationkey)) over(partition by n_regionkey)
from (select * from SALES.NATION)
group by n_regionkey
{noformat}
Incorrect logical plan:
{noformat}
LogicalProject(N_REGIONKEY=[ITEM($0, 'N_REGIONKEY')], EXPR$1=[MAX($1) OVER
(PARTITION BY ITEM($0, 'N_REGIONKEY') RANGE BETWEEN UNBOUNDED PRECEDING AND
UNBOUNDED FOLLOWING)])
LogicalAggregate(group=[{0}], agg#0=[MIN($1)])
LogicalProject(**=[$0], $f1=[ITEM($0, 'N_NATIONKEY')])
LogicalProject(**=[$0])
LogicalTableScan(table=[[CATALOG, SALES, NATION]])
{noformat}
Correct logical plan:
{noformat}
LogicalProject(N_REGIONKEY=[$0], EXPR$1=[MAX($1) OVER (PARTITION BY $0 RANGE
BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)])
LogicalAggregate(group=[{0}], agg#0=[MIN($1)])
LogicalProject(N_REGIONKEY=[ITEM($0, 'N_REGIONKEY')], $f1=[ITEM($0,
'N_NATIONKEY')])
LogicalProject(**=[$0])
LogicalTableScan(table=[[CATALOG, SALES, NATION]])
{noformat}
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