Major Description
Using tables and data structures in `SchemaPruningSuite.scala`
// code placeholder case class FullName(first: String, middle: String, last: String) case class Company(name: String, address: String) case class Employer(id: Int, company: Company) case class Contact( id: Int, name: FullName, address: String, pets: Int, friends: Array[FullName] = Array.empty, relatives: Map[String, FullName] = Map.empty, employer: Employer = null, relations: Map[FullName, String] = Map.empty) case class Department( depId: Int, depName: String, contactId: Int, employer: Employer)
The query to run:
// code placeholder select a.name.first from (select row_number() over (partition by address order by id desc) as __rank, contacts.* from contacts) a where a.name.first = 'A' AND a.__rank = 1
The current physical plan:
// code placeholder == Physical Plan == *(3) Project [name#46.first AS first#74] +- *(3) Filter (((isnotnull(name#46) AND isnotnull(__rank#71)) AND (name#46.first = A)) AND (__rank#71 = 1)) +- Window [row_number() windowspecdefinition(address#47, id#45 DESC NULLS LAST, specifiedwindowframe(RowFrame, unboundedpreceding$(), currentrow$())) AS __rank#71], [address#47], [id#45 DESC NULLS LAST] +- *(2) Sort [address#47 ASC NULLS FIRST, id#45 DESC NULLS LAST], false, 0 +- Exchange hashpartitioning(address#47, 5), true, [id=#52] +- *(1) Project [id#45, name#46, address#47] +- FileScan parquet [id#45,name#46,address#47,p#53] Batched: false, DataFilters: [], Format: Parquet, Location: InMemoryFileIndex[file:/private/var/folders/_c/4r2j33dd14n9ldfc2xqyzs400000gn/T/spark-85d173af-42..., PartitionFilters: [], PushedFilters: [], ReadSchema: struct<id:int,name:struct<first:string,middle:string,last:string>,address:string>
The desired physical plan:
// code placeholder == Physical Plan == *(3) Project [_gen_alias_77#77 AS first#74] +- *(3) Filter (((isnotnull(_gen_alias_77#77) AND isnotnull(__rank#71)) AND (_gen_alias_77#77 = A)) AND (__rank#71 = 1)) +- Window [row_number() windowspecdefinition(address#47, id#45 DESC NULLS LAST, specifiedwindowframe(RowFrame, unboundedpreceding$(), currentrow$())) AS __rank#71], [address#47], [id#45 DESC NULLS LAST] +- *(2) Sort [address#47 ASC NULLS FIRST, id#45 DESC NULLS LAST], false, 0 +- Exchange hashpartitioning(address#47, 5), true, [id=#52] +- *(1) Project [id#45, name#46.first AS _gen_alias_77#77, address#47] +- FileScan parquet [id#45,name#46,address#47,p#53] Batched: false, DataFilters: [], Format: Parquet, Location: InMemoryFileIndex[file:/private/var/folders/_c/4r2j33dd14n9ldfc2xqyzs400000gn/T/spark-c64e0b29-d9..., PartitionFilters: [], PushedFilters: [], ReadSchema: struct<id:int,name:struct<first:string>,address:string>
