[
https://issues.apache.org/jira/browse/SPARK-52157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mihailo Aleksic updated SPARK-52157:
------------------------------------
Description:
In the following query we would have min(outer(t2.t2a)) as a name for min(t2a)
expression.
{code:java}
SELECT t1a
FROM t1
WHERE t1a IN (SELECT t2a
FROM t2
WHERE EXISTS (SELECT min(t2a)
FROM t3))
{code}
This is a problem in compatibility between single-pass resolver and fixed-point
analyzer because names in single-pass are generated after we finish resolution
of aggregate expression min(t2a) (bottom-up manner) and at that point we have
OuterReference wrapped around aggregate expression (name looks like
outer(min(t2a))).
In this issue I propose that we store the name earlier (in a form of a tag) and
use it when needed
was:
In the following query we would have min(outer(t2.t2a)) as a name for min(t2a)
expression.
{code:java}
SELECT t1a
FROM t1
WHERE t1a IN (SELECT t2a
FROM t2
WHERE EXISTS (SELECT min(t2a)
FROM t3))
{code}
This is a problem in compatibility between single-pass resolver and fixed-point
analyzer because names in single-pass are generated after we finish resolution
of aggregate expression min(t2a) (bottom-up manner) and at that point we have
OuterReference wrapped around aggregate expression (name looks like
outer(min(t2a))).
> Use earlier computed name for OuterReference in single-pass resolver
> --------------------------------------------------------------------
>
> Key: SPARK-52157
> URL: https://issues.apache.org/jira/browse/SPARK-52157
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Mihailo Aleksic
> Priority: Major
>
> In the following query we would have min(outer(t2.t2a)) as a name for
> min(t2a) expression.
> {code:java}
> SELECT t1a
> FROM t1
> WHERE t1a IN (SELECT t2a
> FROM t2
> WHERE EXISTS (SELECT min(t2a)
> FROM t3))
> {code}
> This is a problem in compatibility between single-pass resolver and
> fixed-point analyzer because names in single-pass are generated after we
> finish resolution of aggregate expression min(t2a) (bottom-up manner) and at
> that point we have OuterReference wrapped around aggregate expression (name
> looks like outer(min(t2a))).
> In this issue I propose that we store the name earlier (in a form of a tag)
> and use it when needed
--
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
