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[GitHub] [spark] amaliujia opened a new pull request, #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
amaliujia opened a new pull request, #38174:
URL: https://github.com/apache/spark/pull/38174
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### What changes were proposed in this pull request?
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Support Column Alias in the Connect DSL (thus in Connect proto).
### Why are the changes needed?
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Column alias is a part of dataframe API , meanwhile we need column alias to support `withColumn` etc. API.
### Does this PR introduce _any_ user-facing change?
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No
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[GitHub] [spark] cloud-fan commented on pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
cloud-fan commented on PR #38174:
URL: https://github.com/apache/spark/pull/38174#issuecomment-1274403953
thanks, merging to master!
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[GitHub] [spark] AmplabJenkins commented on pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
AmplabJenkins commented on PR #38174:
URL: https://github.com/apache/spark/pull/38174#issuecomment-1272619137
Can one of the admins verify this patch?
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[GitHub] [spark] grundprinzip commented on a diff in pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
grundprinzip commented on code in PR #38174:
URL: https://github.com/apache/spark/pull/38174#discussion_r990758968
##########
connector/connect/src/main/protobuf/spark/connect/expressions.proto:
##########
@@ -165,4 +166,9 @@ message Expression {
message QualifiedAttribute {
string name = 1;
}
+
+ message Alias {
Review Comment:
why wouldn't this be a common attribute of Expression instead?
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[GitHub] [spark] amaliujia commented on pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
amaliujia commented on PR #38174:
URL: https://github.com/apache/spark/pull/38174#issuecomment-1272483032
R: @cloud-fan
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[GitHub] [spark] cloud-fan closed pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
cloud-fan closed pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
URL: https://github.com/apache/spark/pull/38174
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[GitHub] [spark] cloud-fan commented on a diff in pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
cloud-fan commented on code in PR #38174:
URL: https://github.com/apache/spark/pull/38174#discussion_r990931689
##########
connector/connect/src/main/protobuf/spark/connect/expressions.proto:
##########
@@ -165,4 +166,9 @@ message Expression {
message QualifiedAttribute {
string name = 1;
}
+
+ message Alias {
Review Comment:
Only a few places require Expression to be wrapped by an alias. I'd like to match catalyst and have an individual `Alias` expression.
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[GitHub] [spark] HyukjinKwon commented on a diff in pull request #38174: [SPARK-40717][CONNECT] Support Column Alias in the Connect DSL
Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on code in PR #38174:
URL: https://github.com/apache/spark/pull/38174#discussion_r995324097
##########
connector/connect/src/test/scala/org/apache/spark/sql/connect/planner/SparkConnectProtoSuite.scala:
##########
@@ -81,6 +81,15 @@ class SparkConnectProtoSuite extends PlanTest with SparkConnectPlanTest {
}
}
+ test("column alias") {
+ val connectPlan = {
+ import org.apache.spark.sql.connect.dsl.expressions._
+ import org.apache.spark.sql.connect.dsl.plans._
+ transform(connectTestRelation.select("id".protoAttr.as("id2")))
+ }
+ val sparkPlan = sparkTestRelation.select($"id".as("id2"))
+ }
Review Comment:
Actually this doesn't test :-). Let me make a quick followup.
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