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@alamb alamb commented Jan 8, 2026

Which issue does this PR close?

Rationale for this change

Backport the fix for this regression into 52 release branch:

What changes are included in this PR?

Backport these two commits to branch-52 (cherry-pick was clean)

Commands

andrewlamb@Andrews-MacBook-Pro-3:~/Software/datafusion$ git cherry-pick 1037f0a
[branch-52 1fc70ac20] feat: add list_files_cache table function for `datafusion-cli` (#19388)
 Author: jizezhang <jizez@uw.edu>
 Date: Tue Jan 6 05:23:39 2026 -0800
 5 files changed, 446 insertions(+), 31 deletions(-)
andrewlamb@Andrews-MacBook-Pro-3:~/Software/datafusion$ git cherry-pick  e6049de
Auto-merging datafusion/core/src/execution/context/mod.rs
[branch-52 aa3d413f0] Make default ListingFilesCache table scoped (#19616)
 Author: jizezhang <jizez@uw.edu>
 Date: Thu Jan 8 06:34:10 2026 -0800
 10 files changed, 474 insertions(+), 184 deletions(-)

Are these changes tested?

By CI and new tests

Are there any user-facing changes?

A new datafusion-cli function and dropping a external table now clears the listing cache

…e#19388)

## Which issue does this PR close?

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enhancements and this helps us generate change logs for our releases.
You can link an issue to this PR using the GitHub syntax. For example
`Closes apache#123` indicates that this PR will close issue apache#123.
-->

- Closes apache#19055.

## Rationale for this change

<!--
Why are you proposing this change? If this is already explained clearly
in the issue then this section is not needed.
Explaining clearly why changes are proposed helps reviewers understand
your changes and offer better suggestions for fixes.
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## What changes are included in this PR?

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```
> CREATE EXTERNAL TABLE nyc_taxi_rides
STORED AS PARQUET LOCATION 's3://altinity-clickhouse-data/nyc_taxi_rides/data/tripdata_parquet/'
;
0 row(s) fetched. 
Elapsed 10.061 seconds.

> SELECT metadata_size_bytes, expires_in, unnest(metadata_list) FROM list_files_cache();
+---------------------+------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| metadata_size_bytes | expires_in | UNNEST(list_files_cache().metadata_list)                                                                                                                                                           |
+---------------------+------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200901.parquet, file_modified: 2025-05-30T09:44:23, file_size_bytes: 222192983, e_tag: "e8d016c3c7af80bf911d96387febe2c1-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200902.parquet, file_modified: 2025-05-30T09:46:00, file_size_bytes: 211023080, e_tag: "1021626ff5ef606422aa7121edd69f3b-12", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200903.parquet, file_modified: 2025-05-30T09:47:20, file_size_bytes: 229202874, e_tag: "96e7494b217099c6a07e9c4298cbe783-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200904.parquet, file_modified: 2025-05-30T09:44:37, file_size_bytes: 225659965, e_tag: "728c45fabdcd8e40bdef4dfc28df9b0f-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200905.parquet, file_modified: 2025-05-30T09:46:12, file_size_bytes: 232847306, e_tag: "f59e45bd8bd1d77cd7ae8ab6ab468bcc-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200906.parquet, file_modified: 2025-05-30T09:47:26, file_size_bytes: 224226575, e_tag: "8ebb698eea85f9af87065ac333efc449-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200907.parquet, file_modified: 2025-05-30T09:44:52, file_size_bytes: 217168413, e_tag: "7d7ee77f6cac4adc18aa3a9e74600dd3-12", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200908.parquet, file_modified: 2025-05-30T09:46:23, file_size_bytes: 217303109, e_tag: "e9883055d92a33b941aab971423e681b-12", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200909.parquet, file_modified: 2025-05-30T09:47:28, file_size_bytes: 223333499, e_tag: "6f0917e6003b38df9060d71c004eb961-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200910.parquet, file_modified: 2025-05-30T09:44:54, file_size_bytes: 246300471, e_tag: "8928b29da44e041021e10077683b7817-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200911.parquet, file_modified: 2025-05-30T09:46:37, file_size_bytes: 227920860, e_tag: "4cd26a1a7f82af080c33e890dc1fef27-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-200912.parquet, file_modified: 2025-05-30T09:44:24, file_size_bytes: 233873308, e_tag: "23f4584e494e3c065c777c270c9eedbc-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201001.parquet, file_modified: 2025-05-30T09:45:18, file_size_bytes: 235166925, e_tag: "effcc8cc41b40cf7ac466f911d7b9459-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201002.parquet, file_modified: 2025-05-30T09:46:59, file_size_bytes: 177367931, e_tag: "ce8b7817ecc47da86ccbfa6b51ffa06b-10", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201003.parquet, file_modified: 2025-05-30T09:44:26, file_size_bytes: 205857224, e_tag: "94a078b61e3b652387e6f2a673dc3f4e-12", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201004.parquet, file_modified: 2025-05-30T09:45:04, file_size_bytes: 243024246, e_tag: "a1efbebfdabc204e0041d8714aaec01a-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201005.parquet, file_modified: 2025-05-30T09:46:47, file_size_bytes: 248130090, e_tag: "d3cf585e00ce627a807348c84a42d0a6-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201006.parquet, file_modified: 2025-05-30T09:44:25, file_size_bytes: 237068130, e_tag: "831db33281a5c017f8ffc466bd47546b-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201007.parquet, file_modified: 2025-05-30T09:45:35, file_size_bytes: 234826090, e_tag: "790e05983e6592e4920c88fbd2bfe774-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201008.parquet, file_modified: 2025-05-30T09:47:14, file_size_bytes: 197990272, e_tag: "d87ddb446e5cbc0f6831fafd95cfd027-11", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201009.parquet, file_modified: 2025-05-30T09:44:27, file_size_bytes: 243408943, e_tag: "abfbe3b29942bcd68d131d95540278d3-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201010.parquet, file_modified: 2025-05-30T09:45:47, file_size_bytes: 225277041, e_tag: "f768c7b77497b2bf3efd5cb2a4362977-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201011.parquet, file_modified: 2025-05-30T09:47:23, file_size_bytes: 220010577, e_tag: "c6830cbe1f3ae918f9280db3aa847b03-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201012.parquet, file_modified: 2025-05-30T09:44:24, file_size_bytes: 219773352, e_tag: "264f7ea433076690a3bbe5566168e5c5-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201101.parquet, file_modified: 2025-05-30T09:45:52, file_size_bytes: 212535107, e_tag: "ca3bdc2707b29667c78c39517781eac4-12", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201102.parquet, file_modified: 2025-05-30T09:47:23, file_size_bytes: 223138164, e_tag: "e2b3c0fd0c0d66ac6363600de0c8b2ad-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201103.parquet, file_modified: 2025-05-30T09:44:26, file_size_bytes: 252843261, e_tag: "fd5d4e01568cd6e7ef1e00de76441e5b-15", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201104.parquet, file_modified: 2025-05-30T09:46:10, file_size_bytes: 233123935, e_tag: "2b510cc2c0c73d9ec7374c9e6d56c388-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201105.parquet, file_modified: 2025-05-30T09:44:24, file_size_bytes: 246843111, e_tag: "abc2f58bd520b2013aa1a333d317c70c-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201106.parquet, file_modified: 2025-05-30T09:44:58, file_size_bytes: 238786647, e_tag: "0e456698dc42a850ff7b764506cb511d-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201107.parquet, file_modified: 2025-05-30T09:46:40, file_size_bytes: 233249259, e_tag: "28177227cbff94a6a819a0568a14e9b2-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201108.parquet, file_modified: 2025-05-30T09:44:25, file_size_bytes: 212681184, e_tag: "fdcb442e1010630c0553a7018762a8ba-12", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201109.parquet, file_modified: 2025-05-30T09:45:13, file_size_bytes: 232399266, e_tag: "ccca37be5a3579a8bc644490226ed29a-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201110.parquet, file_modified: 2025-05-30T09:46:52, file_size_bytes: 248471033, e_tag: "eebe34c1bb74f63433eb607810969553-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201111.parquet, file_modified: 2025-05-30T09:44:26, file_size_bytes: 231103826, e_tag: "7c76b9fc111462b76336d63bce3253c7-13", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201112.parquet, file_modified: 2025-05-30T09:45:40, file_size_bytes: 236102882, e_tag: "26c10d1d85c4565cbb9e8fc6a7bc745c-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201201.parquet, file_modified: 2025-05-30T09:47:21, file_size_bytes: 236184052, e_tag: "8cdc15a22462579dcf90d669cea0f04b-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201202.parquet, file_modified: 2025-05-30T09:44:27, file_size_bytes: 238377570, e_tag: "4e6734c5c2e77c68dde5155a45dac81c-14", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201203.parquet, file_modified: 2025-05-30T09:46:06, file_size_bytes: 258226172, e_tag: "b7b07fa0f4fefcf0ba0fc69ba344b5c8-15", version: NULL} |
| 18138               | NULL       | {file_path: nyc_taxi_rides/data/tripdata_parquet/data-201204.parquet, file_modified: 2025-05-30T09:44:25, file_size_bytes: 248190698, e_tag: "968c13850fa9a7cb46337bc8fc9d13fa-14", version: NULL} |
| .                                                                                                                                                                                                                                     |
| .                                                                                                                                                                                                                                     |
| .                                                                                                                                                                                                                                     |
+---------------------+------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
96 row(s) fetched. (First 40 displayed. Use --maxrows to adjust)
Elapsed 0.057 seconds.
```

## Are these changes tested?

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Yes

## Are there any user-facing changes?

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This will enable a new user-facing table function to datafusion cli.

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change` label.
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## Which issue does this PR close?

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`Closes apache#123` indicates that this PR will close issue apache#123.
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- Builds on apache#19388
- Closes apache#19573

## Rationale for this change

<!--
Why are you proposing this change? If this is already explained clearly
in the issue then this section is not needed.
Explaining clearly why changes are proposed helps reviewers understand
your changes and offer better suggestions for fixes.
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This PR explores one way to make `ListFilesCache` table scoped. A
session level cache is still used, but the cache key is made a
"table-scoped" path, for which a new struct
```
pub struct TableScopedPath(pub Option<TableReference>, pub Path);
```
is defined. `TableReference` comes from `CreateExternalTable` passed to
`ListingTableFactory::create`.

Additionally, when a table is dropped, all entries related to a table is
dropped by modifying `SessionContext::find_and_deregister` method.

Testing (change on adding `list_files_cache()` for cli is included for
easier testing).
- Testing cache reuse on a single table.
```
> \object_store_profiling summary
ObjectStore Profile mode set to Summary
> create external table test
stored as parquet
location 's3://overturemaps-us-west-2/release/2025-12-17.0/theme=base/';
0 row(s) fetched. 
Elapsed 14.878 seconds.

Object Store Profiling
Instrumented Object Store: instrument_mode: Summary, inner: AmazonS3(overturemaps-us-west-2)
Summaries:
+-----------+----------+-----------+-----------+-------------+-------------+-------+
| Operation | Metric   | min       | max       | avg         | sum         | count |
+-----------+----------+-----------+-----------+-------------+-------------+-------+
| Get       | duration | 0.030597s | 0.209235s | 0.082396s   | 36.254189s  | 440   |
| Get       | size     | 204782 B  | 857230 B  | 497304.88 B | 218814144 B | 440   |
| List      | duration | 0.192037s | 0.192037s | 0.192037s   | 0.192037s   | 1     |
| List      | size     |           |           |             |             | 1     |
+-----------+----------+-----------+-----------+-------------+-------------+-------+
> select table, path, unnest(metadata_list) from list_files_cache() limit 1;
+-------+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| table | path                            | UNNEST(list_files_cache().metadata_list)                                                                                                                                                                                                                  |
+-------+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| test  | release/2025-12-17.0/theme=base | {file_path: release/2025-12-17.0/theme=base/type=bathymetry/part-00000-dd0f2f50-b436-4710-996f-f1b06181a3a1-c000.zstd.parquet, file_modified: 2025-12-17T22:32:50, file_size_bytes: 40280159, e_tag: "15090401f8f936c3f83bb498cb99a41d-3", version: NULL} |
+-------+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row(s) fetched. 
Elapsed 0.058 seconds.

Object Store Profiling
> select count(*) from test where type = 'infrastructure';
+-----------+
| count(*)  |
+-----------+
| 142969564 |
+-----------+
1 row(s) fetched. 
Elapsed 0.028 seconds.

Object Store Profiling
```
- Test separate cache entries are created for two tables with same path
```
> create external table test2
stored as parquet
location 's3://overturemaps-us-west-2/release/2025-12-17.0/theme=base/';
0 row(s) fetched. 
Elapsed 14.798 seconds.

Object Store Profiling
Instrumented Object Store: instrument_mode: Summary, inner: AmazonS3(overturemaps-us-west-2)
Summaries:
+-----------+----------+-----------+-----------+-------------+-------------+-------+
| Operation | Metric   | min       | max       | avg         | sum         | count |
+-----------+----------+-----------+-----------+-------------+-------------+-------+
| Get       | duration | 0.030238s | 0.350465s | 0.073670s   | 32.414654s  | 440   |
| Get       | size     | 204782 B  | 857230 B  | 497304.88 B | 218814144 B | 440   |
| List      | duration | 0.133334s | 0.133334s | 0.133334s   | 0.133334s   | 1     |
| List      | size     |           |           |             |             | 1     |
+-----------+----------+-----------+-----------+-------------+-------------+-------+
> select count(*) from test2 where type = 'bathymetry';
+----------+
| count(*) |
+----------+
| 59963    |
+----------+
1 row(s) fetched. 
Elapsed 0.009 seconds.

Object Store Profiling
> select table, path from list_files_cache();
+-------+---------------------------------+
| table | path                            |
+-------+---------------------------------+
| test  | release/2025-12-17.0/theme=base |
| test2 | release/2025-12-17.0/theme=base |
+-------+---------------------------------+
2 row(s) fetched. 
Elapsed 0.004 seconds.
```
- Test cache associated with a table is dropped when table is dropped,
and the other table with same path is unaffected.
```
> drop table test;
0 row(s) fetched. 
Elapsed 0.015 seconds.

Object Store Profiling
> select table, path from list_files_cache();
+-------+---------------------------------+
| table | path                            |
+-------+---------------------------------+
| test2 | release/2025-12-17.0/theme=base |
+-------+---------------------------------+
1 row(s) fetched. 
Elapsed 0.005 seconds.

Object Store Profiling
> select count(*) from list_files_cache() where table = 'test';
+----------+
| count(*) |
+----------+
| 0        |
+----------+
1 row(s) fetched. 
Elapsed 0.014 seconds.
> select count(*) from test2 where type = 'infrastructure';
+-----------+
| count(*)  |
+-----------+
| 142969564 |
+-----------+
1 row(s) fetched. 
Elapsed 0.013 seconds.

Object Store Profiling
```
- Test that dropping a view does not remove cache
```
> create view test2_view as (select * from test2 where type = 'infrastructure');
0 row(s) fetched. 
Elapsed 0.103 seconds.

Object Store Profiling
> select count(*) from test2_view;
+-----------+
| count(*)  |
+-----------+
| 142969564 |
+-----------+
1 row(s) fetched. 
Elapsed 0.094 seconds.

Object Store Profiling
> drop view test2_view;
0 row(s) fetched. 
Elapsed 0.002 seconds.

Object Store Profiling
> select table, path from list_files_cache();
+-------+---------------------------------+
| table | path                            |
+-------+---------------------------------+
| test2 | release/2025-12-17.0/theme=base |
+-------+---------------------------------+
1 row(s) fetched. 
Elapsed 0.007 seconds.
```
## What changes are included in this PR?

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There is no need to duplicate the description in the issue here but it
is sometimes worth providing a summary of the individual changes in this
PR.
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## Are these changes tested?

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1. Prevent the code from being accidentally broken by subsequent changes
2. Serve as another way to document the expected behavior of the code

If tests are not included in your PR, please explain why (for example,
are they covered by existing tests)?
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## Are there any user-facing changes?

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updated before approving the PR.
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<!--
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@alamb alamb changed the base branch from main to branch-52 January 8, 2026 14:51
@github-actions github-actions bot added documentation Improvements or additions to documentation core Core DataFusion crate catalog Related to the catalog crate execution Related to the execution crate datasource Changes to the datasource crate labels Jan 8, 2026
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@comphead comphead left a comment

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Thanks @alamb.

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@xudong963 xudong963 left a comment

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Thanks!

@xudong963 xudong963 merged commit 1ac18a3 into apache:branch-52 Jan 9, 2026
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