test(delta-harness): add column default scenarios - #720
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mkuchenbecker wants to merge 5 commits into
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Rebuild this capability as a clean additive catalog contribution on the revised harness stack. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Keep the foundation fixture surface limited to table primitives used by its 34 cases. Rename the DML scenario contributors so their scope and rejection semantics are explicit. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Keep side-table ownership with the column-default scenarios that create and inspect those tables. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Summary
This PR adds four column-default probes on top of the core foundation, producing a
38-case combined catalog.
Stack
delta-harness-ossmaindelta-harness-column-defaultsNo direct children.
Scope
This layer owns column-default behavior: parser acceptance and read behavior for an
added defaulted column in Parquet and in ORC, API serialization of an Iceberg field
default, and a low-level read-application probe over files written before the column
existed. It stays independent from RTAS so column-default behavior can be reviewed
without widening the RTAS matrix.
Known limitations
None. This layer has zero known-bug skips.
Validation
git diff --checkagainst the parent tip