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[3.2] DeltaCatalog#createTable should respect write options (#3674) #3698

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merged 1 commit into from
Sep 20, 2024

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cloud-fan
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Which Delta project/connector is this regarding?

  • Spark
  • Standalone
  • Flink
  • Kernel
  • Other (fill in here)

Description

As of today, Delta extracts write options from table properties only for CTAS (in StagedDeltaTableV2#commitStagedChanges), but not for CREATE TABLE. In general, this makes sense because CREATE TABLE has no data-writing but CTAS has. However, the write options can be file system configs that we should respect because CREATE TABLE needs to access Delta logs.

This PR makes Delta CREATE TABLE to follow CTAS and also extract write options from table properties.

How was this patch tested?

Locally tested with Unity Catalog. It's hard to write a test in Delta because the write options are not persisted but only used during table creation.

Does this PR introduce any user-facing changes?

No

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- [x] Spark
- [ ] Standalone
- [ ] Flink
- [ ] Kernel
- [ ] Other (fill in here)

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As of today, Delta extracts write options from table properties only for
CTAS (in `StagedDeltaTableV2#commitStagedChanges`), but not for CREATE
TABLE. In general, this makes sense because CREATE TABLE has no
data-writing but CTAS has. However, the write options can be file system
configs that we should respect because CREATE TABLE needs to access
Delta logs.

This PR makes Delta CREATE TABLE to follow CTAS and also extract write
options from table properties.

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the changes thoroughly including negative and positive cases if
possible.
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clarify how you tested step by step (ideally copy and paste-able, so
that other reviewers can test and check, and descendants can verify in
the future).
If the changes were not tested, please explain why.
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Locally tested with Unity Catalog. It's hard to write a test in Delta
because the write options are not persisted but only used during table
creation.

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proposes - provide the console output, description and/or an example to
show the behavior difference if possible.
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compared to the released Delta Lake versions or within the unreleased
branches such as master.
If no, write 'No'.
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No
@cloud-fan
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backport #3674

@cloud-fan
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cc @prakharjain09 @tdas

@tdas tdas merged commit d970fed into delta-io:branch-3.2 Sep 20, 2024
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3 participants