cloud-fan commented on code in PR #36745:
URL: https://github.com/apache/spark/pull/36745#discussion_r890902366
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -2881,6 +2881,15 @@ object SQLConf {
.booleanConf
.createWithDefault(true)
+ val DEFAULT_COLUMN_ALLOWED_PROVIDERS =
+ buildConf("spark.sql.defaultColumn.allowedProviders")
+ .internal()
+ .doc("List of table providers wherein SQL commands are permitted to
assign DEFAULT column " +
+ "values. Comma-separated list, whitespace ignored, case-insensitive.")
+ .version("3.4.0")
+ .stringConf
+ .createWithDefault("csv,json,orc,parquet")
Review Comment:
This is fine for now. But eventually, I think we need a data source API for
a source to report if it supports default value or not, instead of asking
end-users to set this conf.
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