[BugFix] Fix an exception when reading a Paimon table with array<row> column

[mxdzs0612]

Co-authored: @songpcmusic

Why I'm doing:

When creating a Paimon table with following properties:

'fields.claim_info.aggregate-function' = 'nested_update'
'fields.claim_info.nested-key' = 'claim_id'

and the table includes a column like

claim_info      ARRAY<ROW<claim_id varchar, gmt_claim varchar, is_valid BIGINT, leads_entity_id varchar>>

It may return

E20241103 14:41:48.883949 140614797981248 scan_operator.cpp:445] scan fragment b28ba51d-99ae-11ef-a342-02422170dcd7 driver 6 Scan tasks error: Internal error: Failed to call the nextChunkOf
fHeap method of off-heap table scanner. java exception details: java.io.IOException: Failed to get the next off-heap table chunk of paimon.
        at com.starrocks.paimon.reader.PaimonSplitScanner.getNext(PaimonSplitScanner.java:163)                                                                      
        at com.starrocks.jni.connector.ConnectorScanner.getNextOffHeapChunk(ConnectorScanner.java:101)
Caused by: java.lang.ClassCastException: class org.apache.paimon.data.NestedRow cannot be cast to class org.apache.paimon.data.columnar.ColumnarRow (org.apache.paimon.data.NestedRow and org
.apache.paimon.data.columnar.ColumnarRow are in unnamed module of loader com.starrocks.utils.loader.ChildFirstClassLoader @6ebd78d1)
        at com.starrocks.paimon.reader.PaimonColumnValue.unpackStruct(PaimonColumnValue.java:113)
        at com.starrocks.jni.connector.OffHeapColumnVector.appendValue(OffHeapColumnVector.java:568)
        at com.starrocks.jni.connector.OffHeapColumnVector.appendArray(OffHeapColumnVector.java:426)
        at com.starrocks.jni.connector.OffHeapColumnVector.appendValue(OffHeapColumnVector.java:556)                                                                
        at com.starrocks.jni.connector.OffHeapTable.appendData(OffHeapTable.java:95)
        at com.starrocks.jni.connector.ConnectorScanner.appendData(ConnectorScanner.java:86)
        at com.starrocks.paimon.reader.PaimonSplitScanner.getNext(PaimonSplitScanner.java:153)
        ... 1 more

be/src/exec/jni_scanner.cpp:144 _check_jni_exception(env, "Failed to call the nextChunkOffHeap method of off-heap table scanner.")
be/src/exec/jni_scanner.cpp:391 _get_next_chunk(env, &chunk_meta)                                                                                                   
be/src/exec/jni_scanner.cpp:378 value_or_err_L378
be/src/connector/hive_connector.cpp:690 _scanner->get_next(state, chunk)

What I'm doing:

The row maybe NestedRow, not a ColumnarRow. Using InternalRow can solve this problem.

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.3
  • 3.2
  • 3.1
  • 3.0
  • 2.5

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

[Java-Extensions Incremental Coverage Report]

❌ fail : 0 / 1 (00.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	com/starrocks/paimon/reader/PaimonColumnValue.java	0	1	00.00%	[113]

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

@Mergifyio backport branch-3.3

[github-actions]

@Mergifyio backport branch-3.2

[mergify]

backport branch-3.3

✅ Backports have been created

• #52876 [BugFix] Fix an exception when reading a Paimon table with array column (backport #52743) has been created for branch branch-3.3

[mergify]

backport branch-3.2

✅ Backports have been created

• #52877 [BugFix] Fix an exception when reading a Paimon table with array column (backport #52743) has been created for branch branch-3.2