test(integration-tests): cover column defaults - #748
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mkuchenbecker wants to merge 20 commits into
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mkuchenbecker wants to merge 20 commits into
mkuchenbecker wants to merge 20 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 side-table ownership with the column-default scenarios that create and inspect those tables. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This was referenced Sep 18, 2026
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Describe column defaults through parser, metadata, and read behavior without indexing tests or duplicating catalog counts. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> # Conflicts: # integrations/spark/delta-harness/TEST-COVERAGE.md
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Move the column-default contributors into the renamed package and keep their qualitative coverage documentation with the module. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
mkuchenbecker
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
mkuchenbecker
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Summary
This PR adds column-default behavior on top of the core catalog. It contributes
four focused cases and produces 38 combined cases.
This branch also fills the Column defaults section in
TEST-COVERAGE.md.Stack
mainScope
This layer owns parser acceptance and read behavior for an added defaulted
column in Parquet and ORC, API serialization of an Iceberg field default, and
read-time default application to files written before the column existed. It
stays independent from RTAS so its behavior can be reviewed without widening
the RTAS matrix.
Known limitations
This layer has no known-bug skips.
Validation
git diff --checkagainst the parent tip