umehrot2 commented on a change in pull request #1702:
URL: https://github.com/apache/hudi/pull/1702#discussion_r466320096
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File path: hudi-spark/src/main/scala/org/apache/hudi/DefaultSource.scala
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@@ -54,29 +58,54 @@ class DefaultSource extends RelationProvider
val parameters = Map(QUERY_TYPE_OPT_KEY -> DEFAULT_QUERY_TYPE_OPT_VAL) ++
translateViewTypesToQueryTypes(optParams)
val path = parameters.get("path")
- if (path.isEmpty) {
- throw new HoodieException("'path' must be specified.")
- }
if (parameters(QUERY_TYPE_OPT_KEY).equals(QUERY_TYPE_SNAPSHOT_OPT_VAL)) {
- // this is just effectively RO view only, where `path` can contain a mix
of
- // non-hoodie/hoodie path files. set the path filter up
- sqlContext.sparkContext.hadoopConfiguration.setClass(
- "mapreduce.input.pathFilter.class",
- classOf[HoodieROTablePathFilter],
- classOf[org.apache.hadoop.fs.PathFilter])
-
- log.info("Constructing hoodie (as parquet) data source with options :" +
parameters)
- log.warn("Snapshot view not supported yet via data source, for
MERGE_ON_READ tables. " +
- "Please query the Hive table registered using Spark SQL.")
- // simply return as a regular parquet relation
- DataSource.apply(
- sparkSession = sqlContext.sparkSession,
- userSpecifiedSchema = Option(schema),
- className = "parquet",
- options = parameters)
- .resolveRelation()
+ val readPathsStr =
parameters.get(DataSourceReadOptions.READ_PATHS_OPT_KEY)
Review comment:
Well right now I added it only for our internal logic to support
incremental query on bootstrapped tables.
Would you want customers to use this otherwise as well, to be able to
provide multiple read paths for querying ? Is that the ask here ?
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