Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/22134#discussion_r210916941
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala
---
@@ -609,7 +609,13 @@ object DataSource extends Logging {
/** Given a provider name, look up the data source class definition. */
def lookupDataSource(provider: String, conf: SQLConf): Class[_] = {
- val provider1 = backwardCompatibilityMap.getOrElse(provider, provider)
match {
+ val customBackwardCompatibilityMap =
+ conf.getAllConfs
+ .filter(_._1.startsWith("spark.sql.datasource.map"))
+ .map{ case (k, v) => (k.replaceFirst("^spark.sql.datasource.map.",
""), v) }
+ val compatibilityMap = backwardCompatibilityMap ++
customBackwardCompatibilityMap
--- End diff --
answering one of my own questions found avro docs here:
https://github.com/apache/spark/pull/22121
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