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https://issues.apache.org/jira/browse/IMPALA-14536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18044725#comment-18044725
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ASF subversion and git services commented on IMPALA-14536:
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Commit 9d112dae23870b6729473047da94f1bc0ea89ceb in impala's branch
refs/heads/master from Daniel Vanko
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=9d112dae2 ]
IMPALA-14536: Fix CONVERT TO ICEBERG to not throw exception on Iceberg tables
Previously, running ALTER TABLE <table> CONVERT TO ICEBERG on an Iceberg
table produced an error. This patch fixes that, so the statement will do
nothing when called on an Iceberg table and return with 'Table has
already been migrated.' message.
This is achieved by adding a new flag to StatementBase to signal when a
statement ends up NO_OP, if that's true, the new TStmtType::NO_OP will
be set as TExecRequest's type and noop_result can be used to set result
from Frontend-side.
Tests:
* extended fe and e2e tests
Change-Id: I41ecbfd350d38e4e3fd7b813a4fc27211d828f73
Reviewed-on: http://gerrit.cloudera.org:8080/23699
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Peter Rozsa <[email protected]>
> ALTER TABLE CONVERT TO ICEBERG should be idempotent
> ---------------------------------------------------
>
> Key: IMPALA-14536
> URL: https://issues.apache.org/jira/browse/IMPALA-14536
> Project: IMPALA
> Issue Type: Bug
> Components: Catalog, Frontend
> Affects Versions: Impala 4.3.0
> Reporter: Michael Smith
> Assignee: Dániel Gábor Vankó
> Priority: Major
> Labels: impala-iceberg, newbie, ramp-up
> Fix For: Impala 5.0.0
>
>
> Running {{ALTER TABLE <table> CONVERT TO ICEBERG}} on an Iceberg table should
> do nothing rather than produce the error
> {code}
> AnalysisException: CONVERT TO ICEBERG is not supported for
> org.apache.iceberg.mr.hive.HiveIcebergInputFormat
> {code}
> I run into this sometimes re-running functional-query dataload, because it
> creates a table and converts it to iceberg. Most of the time re-running
> dataload will just re-run, but in this case it errors because the table has
> already been converted to iceberg.
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