cloud-fan commented on a change in pull request #26537: [SPARK-29587][SQL]
Support SQL Standard type real as float(4) numeric as decimal
URL: https://github.com/apache/spark/pull/26537#discussion_r347084404
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -2154,17 +2154,17 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
case ("smallint" | "short", Nil) => ShortType
case ("int" | "integer", Nil) => IntegerType
case ("bigint" | "long", Nil) => LongType
- case ("float", Nil) => FloatType
+ case ("float" | "real", Nil) => FloatType
Review comment:
In this case it's not very useful to look at other databases. There are many
stuff that is "implementation-defined".
Personally I'm fine to treat real as float in Spark, just need an official
proposal.
For numeric/decimal, I don't have a strong preference.
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