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jinwensc commented on SPARK-29274: ---------------------------------- bigdecimal compare to string, string should be promote to bigdecimal. > Should not coerce decimal type to double type when it's join column > ------------------------------------------------------------------- > > Key: SPARK-29274 > URL: https://issues.apache.org/jira/browse/SPARK-29274 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 2.3.4, 2.4.4, 3.0.0 > Reporter: Yuming Wang > Assignee: Pengfei Chang > Priority: Major > Attachments: image-2019-09-27-20-20-24-238.png > > > How to reproduce this issue: > {code:sql} > create table t1 (incdata_id decimal(21,0), v string) using parquet; > create table t2 (incdata_id string, v string) using parquet; > explain select * from t1 join t2 on (t1.incdata_id = t2.incdata_id); > == Physical Plan == > *(5) SortMergeJoin > [knownfloatingpointnormalized(normalizenanandzero(cast(incdata_id#31 as > double)))], > [knownfloatingpointnormalized(normalizenanandzero(cast(incdata_id#33 as > double)))], Inner > :- *(2) Sort > [knownfloatingpointnormalized(normalizenanandzero(cast(incdata_id#31 as > double))) ASC NULLS FIRST], false, 0 > : +- Exchange > hashpartitioning(knownfloatingpointnormalized(normalizenanandzero(cast(incdata_id#31 > as double))), 200), true, [id=#104] > : +- *(1) Filter isnotnull(incdata_id#31) > : +- Scan hive default.t1 [incdata_id#31, v#32], HiveTableRelation > `default`.`t1`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, > [incdata_id#31, v#32], Statistics(sizeInBytes=8.0 EiB) > +- *(4) Sort > [knownfloatingpointnormalized(normalizenanandzero(cast(incdata_id#33 as > double))) ASC NULLS FIRST], false, 0 > +- Exchange > hashpartitioning(knownfloatingpointnormalized(normalizenanandzero(cast(incdata_id#33 > as double))), 200), true, [id=#112] > +- *(3) Filter isnotnull(incdata_id#33) > +- Scan hive default.t2 [incdata_id#33, v#34], HiveTableRelation > `default`.`t2`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, > [incdata_id#33, v#34], Statistics(sizeInBytes=8.0 EiB) > {code} > {code:sql} > select cast(v1 as double) as v3, cast(v2 as double) as v4, > cast(v1 as double) = cast(v2 as double), v1 = v2 > from (select cast('100000000001636981212' as decimal(21, 0)) as v1, > cast('100000000001636981213' as decimal(21, 0)) as v2) t; > 1.0000000000163697E20 1.0000000000163697E20 true false > {code} > > It's a realy case in our production: > !image-2019-09-27-20-20-24-238.png|width=100%! -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org