AngersZhuuuu commented on a change in pull request #34453:
URL: https://github.com/apache/spark/pull/34453#discussion_r770259676
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -1158,6 +1158,14 @@ object SQLConf {
.intConf
.createWithDefault(200)
+ val THRIFTSERVER_SEPARATE_DISPLAY_SYSTEM_FUNCTION =
+ buildConf("spark.sql.thriftserver.separateDisplaySystemFunctions")
+ .doc("When true, Spark Thrift Server will return databases' system
functions metadata " +
+ "only once, and Spark will change function schema as `SYSTEM`.")
Review comment:
> Does Apache Spark use `SYSTEM` before in other places?
sessionCatalog.listFunctions()
```
// so there can be duplicates.
functions.map {
case f if FunctionRegistry.functionSet.contains(f) => (f, "SYSTEM")
case f if TableFunctionRegistry.functionSet.contains(f) => (f,
"SYSTEM")
case f => (f, "USER")
}.distinct
```
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