James Turton created DRILL-8063:
-----------------------------------
Summary: OOM planning a certain query
Key: DRILL-8063
URL: https://issues.apache.org/jira/browse/DRILL-8063
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Affects Versions: 1.19.0
Reporter: James Turton
Assignee: Vitalii Diravka
Fix For: 1.20.0
This looks like an infinite planning bug in Calcite. To reproduce, copy the
two referenced TPCH Parquet files from contrib/data/tpch-sample-data/parquet/
to dfs.tmp then run the following. Uncommenting the `magic_fix` column is just
one of the changes that can be made to make the query planning succeed.
```
select
p_brand,
-- 'foobar' as magic_fix,
case
when f1 then v1
else null
end as `m_1`,
case
when f1 then v2
else null
end as `m_2`
from
(select
part.`p_brand`,
sum(t.l_extendedprice) as v1,
avg(t.l_extendedprice) as v2,
true as f1
from
dfs.tmp.`lineitem.parquet` `t`
inner join dfs.tmp.`part.parquet` part on `t`.`l_partkey` =
part.`p_partkey`
group by part.`p_brand`) as `t2`
```
Stack trace snippet:
```
2021-12-01 13:12:15,172 [1e58a77f-0a5d-22b5-47f6-4c51bc31dbe6:foreman] ERROR
o.a.drill.common.CatastrophicFailure - Cat
astrophic Failure Occurred, exiting. Information message: Unable to handle out
of memory condition in Foreman.
java.lang.OutOfMemoryError: Java heap space
at java.base/java.util.Arrays.copyOf(Arrays.java:3745)
at
java.base/java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:172)
at
java.base/java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:538)
at java.base/java.lang.StringBuilder.append(StringBuilder.java:174)
at java.base/java.lang.StringBuilder.append(StringBuilder.java:168)
at org.apache.calcite.rex.RexCall.appendOperands(RexCall.java:109)
at org.apache.calcite.rex.RexCall.computeDigest(RexCall.java:166)
at org.apache.calcite.rex.RexCall.toString(RexCall.java:183)
at java.base/java.lang.String.valueOf(String.java:2951)
at java.base/java.lang.StringBuilder.append(StringBuilder.java:168)
at org.apache.calcite.rex.RexCall.appendOperands(RexCall.java:109)
at org.apache.calcite.rex.RexCall.computeDigest(RexCall.java:166)
at org.apache.calcite.rex.RexCall.toString(RexCall.java:183)
...
```
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