wang-zhun created SPARK-40608:
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Summary: `V2ScanRelationPushDown` supports extracting predicates
in the output set
Key: SPARK-40608
URL: https://issues.apache.org/jira/browse/SPARK-40608
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.3.0
Reporter: wang-zhun
Currently it is not possible to push down `(ID = 20220921) OR (ID = 20220910)`,
if `ID` is a partition field, it makes sense to implement push down
{code:java}
SELECT * FROM h2.test.people WHERE ID = 20220921 OR (ID =20220910 and
split(NAME, ',')[0] == 'fred') {code}
h3. before
{code:java}
== Analyzed Logical Plan ==
NAME: string, ID: int
Project [NAME#5, ID#6]
+- Filter ((ID#6 = 20220921) OR ((ID#6 = 20220910) AND (split(NAME#5, ,, -1)[0]
= fred)))
+- SubqueryAlias h2.test.people
+- RelationV2[NAME#5, ID#6] h2.test.people test.people
== Optimized Logical Plan ==
Filter ((ID#6 = 20220921) OR ((ID#6 = 20220910) AND (split(NAME#5, ,, -1)[0] =
fred)))
+- RelationV2[NAME#5, ID#6] test.people
== Physical Plan ==
*(1) Filter ((ID#6 = 20220921) OR ((ID#6 = 20220910) AND (split(NAME#5, ,,
-1)[0] = fred)))
+- *(1) Scan
org.apache.spark.sql.execution.datasources.v2.jdbc.JDBCScan$$anon$1@56c42964
[NAME#5,ID#6] PushedFilters: [], ReadSchema: struct<NAME:string,ID:int> {code}
h3. after
{code:java}
== Analyzed Logical Plan ==
NAME: string, ID: int
Project [NAME#5, ID#6]
+- Filter ((ID#6 = 20220921) OR ((ID#6 = 20220910) AND (split(NAME#5, ,, -1)[0]
= fred)))
+- SubqueryAlias h2.test.people
+- RelationV2[NAME#5, ID#6] h2.test.people test.people
== Optimized Logical Plan ==
Filter ((ID#6 = 20220921) OR ((ID#6 = 20220910) AND (split(NAME#5, ,, -1)[0] =
fred)))
+- RelationV2[NAME#5, ID#6] test.people
== Physical Plan ==
*(1) Filter ((ID#6 = 20220921) OR ((ID#6 = 20220910) AND (split(NAME#5, ,,
-1)[0] = fred)))
+- *(1) Scan
org.apache.spark.sql.execution.datasources.v2.jdbc.JDBCScan$$anon$1@56c42964
[NAME#5,ID#6] PushedFilters: [(ID = 20220921) OR (ID = 20220910)], ReadSchema:
struct<NAME:string,ID:int>{code}
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