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https://issues.apache.org/jira/browse/HIVE-9531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Pivovarov updated HIVE-9531:
--------------------------------------
Description:
lift the documented restriction that a exists/not exists must involve a
correlated sub-query
SQL:
{code}
select rnum, c1, c2
from tjoin2
where exists (
select c1 from tjoin1
);
FAILED: SemanticException Line 1:62 Invalid SubQuery expression 'c1' in
definition of SubQuery sq_1 [
exists (select c1 from tjoin1)
] used as sq_1 at Line 1:38: For Exists/Not Exists operator SubQuery must be
Correlated.
{code}
was:
lift the documented restriction that a exists/not exists must involve a
correlated sub-query
SQL: select rnum, c1, c2 from tjoin2 where exists ( select c1 from tjoin1)
FAILED: SemanticException Line 1:62 Invalid SubQuery expression 'c1' in
definition of SubQuery sq_1 [
exists ( select c1 from tjoin1)
] used as sq_1 at Line 1:38: For Exists/Not Exists operator SubQuery must be
Correlated.
> remove requirement that EXISTS subquery must be correlated
> ----------------------------------------------------------
>
> Key: HIVE-9531
> URL: https://issues.apache.org/jira/browse/HIVE-9531
> Project: Hive
> Issue Type: Improvement
> Components: SQL
> Reporter: N Campbell
>
> lift the documented restriction that a exists/not exists must involve a
> correlated sub-query
> SQL:
> {code}
> select rnum, c1, c2
> from tjoin2
> where exists (
> select c1 from tjoin1
> );
> FAILED: SemanticException Line 1:62 Invalid SubQuery expression 'c1' in
> definition of SubQuery sq_1 [
> exists (select c1 from tjoin1)
> ] used as sq_1 at Line 1:38: For Exists/Not Exists operator SubQuery must be
> Correlated.
> {code}
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