[SPARK-47129][CONNECT][SQL][3.5] Make ResolveRelations cache connect plan properly #46291
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Please update the JIRA information first because we cannot backport an improvement, @zhengruifeng . 
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thanks @dongjoon-hyun for reminder, I have updated the Type and versions |
dongjoon-hyun
approved these changes
Apr 30, 2024
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the failed java linter seems unrelated, it was already broken in branch-3.5 https://github.com/apache/spark/actions/runs/8886943128/job/24404782422 |
zhengruifeng
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Apr 30, 2024
…plan properly ### What changes were proposed in this pull request? Make `ResolveRelations` handle plan id properly cherry-pick bugfix #45214 to 3.5 ### Why are the changes needed? bug fix for Spark Connect, it won't affect classic Spark SQL before this PR: ``` from pyspark.sql import functions as sf spark.range(10).withColumn("value_1", sf.lit(1)).write.saveAsTable("test_table_1") spark.range(10).withColumnRenamed("id", "index").withColumn("value_2", sf.lit(2)).write.saveAsTable("test_table_2") df1 = spark.read.table("test_table_1") df2 = spark.read.table("test_table_2") df3 = spark.read.table("test_table_1") join1 = df1.join(df2, on=df1.id==df2.index).select(df2.index, df2.value_2) join2 = df3.join(join1, how="left", on=join1.index==df3.id) join2.schema ``` fails with ``` AnalysisException: [CANNOT_RESOLVE_DATAFRAME_COLUMN] Cannot resolve dataframe column "id". It's probably because of illegal references like `df1.select(df2.col("a"))`. SQLSTATE: 42704 ``` That is due to existing plan caching in `ResolveRelations` doesn't work with Spark Connect ``` === Applying Rule org.apache.spark.sql.catalyst.analysis.Analyzer$ResolveRelations === '[#12]Join LeftOuter, '`==`('index, 'id) '[#12]Join LeftOuter, '`==`('index, 'id) !:- '[#9]UnresolvedRelation [test_table_1], [], false :- '[#9]SubqueryAlias spark_catalog.default.test_table_1 !+- '[#11]Project ['index, 'value_2] : +- 'UnresolvedCatalogRelation `spark_catalog`.`default`.`test_table_1`, [], false ! +- '[#10]Join Inner, '`==`('id, 'index) +- '[#11]Project ['index, 'value_2] ! :- '[#7]UnresolvedRelation [test_table_1], [], false +- '[#10]Join Inner, '`==`('id, 'index) ! +- '[#8]UnresolvedRelation [test_table_2], [], false :- '[#9]SubqueryAlias spark_catalog.default.test_table_1 ! : +- 'UnresolvedCatalogRelation `spark_catalog`.`default`.`test_table_1`, [], false ! +- '[#8]SubqueryAlias spark_catalog.default.test_table_2 ! +- 'UnresolvedCatalogRelation `spark_catalog`.`default`.`test_table_2`, [], false Can not resolve 'id with plan 7 ``` `[#7]UnresolvedRelation [test_table_1], [], false` was wrongly resolved to the cached one ``` :- '[#9]SubqueryAlias spark_catalog.default.test_table_1 +- 'UnresolvedCatalogRelation `spark_catalog`.`default`.`test_table_1`, [], false ``` ### Does this PR introduce _any_ user-facing change? yes, bug fix ### How was this patch tested? added ut ### Was this patch authored or co-authored using generative AI tooling? ci Closes #46291 from zhengruifeng/connect_fix_read_join_35. Authored-by: Ruifeng Zheng <[email protected]> Signed-off-by: Ruifeng Zheng <[email protected]>
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thanks @dongjoon-hyun so much! merged to branch-3.5 |
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What changes were proposed in this pull request?
Make
ResolveRelationshandle plan id properlycherry-pick bugfix #45214 to 3.5
Why are the changes needed?
bug fix for Spark Connect, it won't affect classic Spark SQL
before this PR:
fails with
That is due to existing plan caching in
ResolveRelationsdoesn't work with Spark Connect[#7]UnresolvedRelation [test_table_1], [], falsewas wrongly resolved to the cached oneDoes this PR introduce any user-facing change?
yes, bug fix
How was this patch tested?
added ut
Was this patch authored or co-authored using generative AI tooling?
ci