[ https://issues.apache.org/jira/browse/SPARK-48033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan reassigned SPARK-48033: ----------------------------------- Assignee: Richard Chen > Support Generated Column expressions that are `RuntimeReplaceable` > ------------------------------------------------------------------ > > Key: SPARK-48033 > URL: https://issues.apache.org/jira/browse/SPARK-48033 > Project: Spark > Issue Type: Sub-task > Components: Spark Core > Affects Versions: 4.0.0 > Reporter: Richard Chen > Assignee: Richard Chen > Priority: Major > Labels: pull-request-available > > Currently, default columns that have a default of a `RuntimeReplaceable` > expression fails. > This is because the `AlterTableCommand` constant folds before replacing > expressions with the actual implementation. For example: > ``` > sql(s"CREATE TABLE t(v VARIANT DEFAULT parse_json('1')) USING PARQUET") > sql("INSERT INTO t VALUES(DEFAULT)") > ``` > fails because `parse_json` is `RuntimeReplaceable` and is evaluated before > the analyzer inserts the correct expression into the plan > This is especially important for Variant types because literal variants are > difficult to create - `parse_json` will likely be used the majority of the > time. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org