[GitHub] [flink] Aitozi commented on a diff in pull request #22378: [FLINK-31344][planner] Support to update nested columns in update sta…

["Aitozi (via GitHub)" <gi...@apache.org>]

Aitozi commented on code in PR #22378:
URL: https://github.com/apache/flink/pull/22378#discussion_r1162597631


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flink-table/flink-table-planner/src/test/resources/org/apache/flink/table/planner/plan/batch/sql/RowLevelUpdateTest.xml:
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@@ -20,17 +20,17 @@ limitations under the License.
     <Resource name="explain">
       <![CDATA[== Abstract Syntax Tree ==
 LogicalSink(table=[default_catalog.default_database.t], targetColumns=[[1],[0],[2]], fields=[a, b, c])
-+- LogicalProject(a=[IF(>($2, 123), 123, $0)], b=[IF(>($2, 123), _UTF-16LE'v2', $1)], c=[IF(>($2, 123), +($2, 1), $2)])
++- LogicalProject(a=[CASE(>($2, 123), 123, $0)], b=[CASE(>($2, 123), _UTF-16LE'v2', $1)], c=[CASE(>($2, 123), +($2, 1), $2)])

Review Comment:
   I use `CASE` to replace `IF`, because the `IF` can not handle `ROW` field well, I will have another test/jira for this after verified.



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