[BATCHCMP-379] Support subdirectory reads #62
Merged
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(cherry picked from commit 984bf78)
Brings Spark 3.3 patch #40 into our Spark 3.5 fork, with a couple small modifications:
spark.sql.sources.readPartitionWithSubdirectory.enabledtofalseby default (then set totruein spark wrapper https://github.com/lyft/spark-private/pull/1575)listLeafDirStatusesandlistLeafDirStatusesfromSparkHadoopUtil.scala-- this PR brings them back for our forkThis patch is needed because there are a large number of tables with nested subdirectories (eg. most tables under
featureschema, generated by featureservice) -- see thread for more context.Eventually, we want to fix underlying tables that rely on nested subdirectories, and get rid of this patch & config entirely. But fixing these tables will take a longer dedicated effort. Created backlog ticket BATCHCMP-459 for this effort in the future.