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IMPALA-14536: Fix CONVERT TO ICEBERG to not throw exception on Iceberg tables

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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 <impala-public-jenkins@cloudera.com>
Reviewed-by: Peter Rozsa <prozsa@cloudera.com>
This commit is contained in:
Daniel Vanko
2025-11-19 17:56:06 +01:00
committed by Peter Rozsa
parent d54b75ccf1
commit 9d112dae23
8 changed files with 59 additions and 5 deletions
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5
testdata/workloads/functional-query/queries/QueryTest/iceberg-migrate-from-external-hdfs-tables.test vendored
View File

@@ -78,6 +78,11 @@ alter table parquet_partitioned convert to iceberg tblproperties('iceberg.catalo
'Table has been migrated.'
====
---- QUERY
alter table parquet_partitioned convert to iceberg tblproperties('iceberg.catalog' = 'hadoop.tables');
---- RESULTS
'Table has already been migrated.'
====
---- QUERY
select count(*) from parquet_partitioned;
---- RESULTS
7301