LuciferYang commented on a change in pull request #33748:
URL: https://github.com/apache/spark/pull/33748#discussion_r691733053
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -967,6 +967,32 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val FILE_META_CACHE_ENABLED_SOURCE_LIST =
buildConf("spark.sql.fileMetaCache.enabledSourceList")
+ .doc("A comma-separated list of data source short names for which data
source enabled file " +
+ "meta cache, now the file meta cache only support ORC, it is recommended
to enabled this " +
+ "config when multiple queries are performed on the same dataset, default
is false." +
+ "Warning: if the fileMetaCache is enabled, the existing data files
should not be " +
+ "replaced with the same file name, otherwise there will be a risk of job
failure or wrong " +
+ "data reading before the cache entry expires.")
+ .version("3.3.0")
+ .stringConf
Review comment:
c3838e6 add `.checkValue` and test case
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