cloud-fan commented on code in PR #48986:
URL: https://github.com/apache/spark/pull/48986#discussion_r1887844426
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sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveUtils.scala:
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@@ -221,6 +221,15 @@ private[spark] object HiveUtils extends Logging {
.booleanConf
.createWithDefault(true)
+ val QUOTE_HIVE_STRUCT_FIELD_NAME =
+ buildConf("spark.sql.hive.quoteHiveStructFieldName")
+ .doc("When true, for a column defined in struct type, when it contains
special characters " +
+ "in the field name, Spark will quote it for verification. E.g.
struct<x:int,y.z:int>" +
+ " is read as struct<`x`:int,`y.z`:int> for verification.")
+ .version("4.0.0")
+ .booleanConf
+ .createWithDefault(false)
Review Comment:
does it mean we disable the feature for the read side as well? I think we
only need to disable it for the write side.
cc @yaooqinn
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