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@mach-kernel mach-kernel commented Oct 4, 2025

Which issue does this PR close?

TBD

Rationale for this change

Since table partition columns are serialized separately for ListingScan, apache#15737 made a change to remove them from the TableScan schema so they would not be duplicated. Unfortunately, queries with projections that reference the partition columns would fail to resolve here:

https://github.com/apache/datafusion/blob/daeb6597a0c7344735460bb2dce13879fd89d7bd/datafusion/proto/src/logical_plan/mod.rs#L382-L390

The round-trip test used a partition column in its SELECT to exercise this, however the unoptimized plan did not have projections decorated (so they would not get serialized, and there would be no lookup to fail). As in, scan.projection above would be None.

What changes are included in this PR?

  • Do the projection name -> index binding using ListingTable::schema, at which point the partition columns are decorated
  • Since we're testing the round-tripping of the plan, make a plan with LogicalPlanBuilder that explicitly specifies a projection to ensure we're testing this functionality
    • This test fails on main

Upstream apache#17911

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LGTM

@mach-kernel mach-kernel merged commit 7270277 into spiceai-49 Oct 6, 2025
@mach-kernel mach-kernel deleted the mach/listing-scan-projection branch October 6, 2025 12:59
peasee pushed a commit that referenced this pull request Oct 27, 2025
peasee added a commit that referenced this pull request Oct 27, 2025
* fix: Ensure only tables or aliases that exist are projected (#52)
fix: More dangling references (#54)

UPSTREAM NOTE: This PR was attempted to be upstreamed in apache#13405 - but it was not accepted due to the complexity it brought. Phillip needs to figure out what a good solution that solves our problem and can be upstreamed is.

* Support for metadata columns (`location`, `size`, `last_modified`)  in ListingTableProvider (#74)

UPSTREAM NOTE: This PR was attempted to be upstreamed but was not accepted. Needs to be applied manually
apache#15181

* Infer placeholder datatype for `Expr::InSubquery` (#80)

UPSTREAM NOTE: Upstream PR has been created but not merged yet. Should be available in DF49
apache#15980

* Infer placeholder datatype after `LIMIT` clause as `DataType::Int64` (#81)

UPSTREAM NOTE: Upstream PR has been created but not merged yet. Should be available in DF49
apache#15980

* Do not double alias Exprs

UPSTREAM NOTE: This was attempted to be fixed with
apache#15008 but was closed

This is the tracking issue on DataFusion:
apache#14895
Do not double alias Exprs

* Add prefix to location metadata column (#82)

UPSTREAM NOTE: This will not be upstreamed as is.

* Infer placeholder types for CASE expressions (#87)

UPSTREAM NOTE: This has not been submitted upstream yet.

* Expand `infer_placeholder_types` to infer all possible placeholder types based on their expression (#88)

UPSTREAM NOTE: This has not been submitted upstream yet.

* Fix `Expr::infer_placeholder_types` inference to not fail (#89)

UPSTREAM NOTE: This has not been submitted upstream yet.

* cherry-pick parquet patch (#94)

* Fix array types coercion: preserve child element nullability for list types (#96)

UPSTREAM NOTE: This was submitted upstream and should be available in DF50

apache#17306

* Expand `infer_placeholder_types` to infer all possible placeholder types based on their expression (#88)

UPSTREAM NOTE: This has not been submitted upstream yet.

* do not enforce type guarantees on all Expr traversed in infer_placeholder_types (#97)

* Use UDTF function args in `LogicalPlan::TableScan` name (#98)

* use UDTF function args in LogicalPlan::TableScan name

* update test snapshots

* Implement timestamp_cast_dtype for SqliteDialect (#99)

* Use text for sqlite timestamp

* Add test

* Custom timestamp format for DuckDB (#102)

* Revert "cherry-pick parquet patch (#94)"

This reverts commit d780cc2.

* Support ExprNamed arguments to Scalar UDFs (#104)

* support ExprNamed until 17379 ships

* add same exprnamed lifting to udtf

* resolve projection against `ListingTable` table_schema incl. partition columns (#106)

* fix: Ensure ListingTable partitions are pruned when filters are not used (#108)

* fix: Prune partitions when no filters are defined

* fix: Backport for DF49:

* review: Address comments

* FileScanConfig: Preserve schema metadata across serde boundary (#107)

* FileScanConfig: preserve schema metadata across serde boundary

* add test

* Merge conflict fixes

UPSTREAM NOTE: this should not be upstreamed. This contains conflict fixes from various cherry-picks and differences in v50.

* update arrow-rs fork

UPSTREAM NOTE: this should not be upstreamed

---------

Co-authored-by: Phillip LeBlanc <phillip@leblanc.tech>
Co-authored-by: Kevin Zimmerman <4733573+kczimm@users.noreply.github.com>
Co-authored-by: sgrebnov <sergei.grebnov@gmail.com>
Co-authored-by: jeadie <jack@spice.ai>
Co-authored-by: Jack Eadie <jack.eadie0@gmail.com>
Co-authored-by: Viktor Yershov <krinart@gmail.com>
Co-authored-by: Viktor Yershov <viktor@spice.ai>
Co-authored-by: David Stancu <david@spice.ai>
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3 participants