[#12071] fix(jdbc-hologres): complete V3 type compatibility#12087
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nevzheng wants to merge 5 commits into
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[#12071] fix(jdbc-hologres): complete V3 type compatibility#12087nevzheng wants to merge 5 commits into
nevzheng wants to merge 5 commits into
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What changes were proposed in this pull request?
Define and document Hologres compatibility for the five Gravitino V3-native type families.
Nanosecond timestamps, Variant, Unknown/Null, Geometry, and Geography are rejected before DDL because the connector cannot currently preserve their complete Gravitino semantics.
Why are the changes needed?
Conditional database capabilities are not sufficient without a version- and metadata-aware round-trip contract. Early rejection prevents lossy writes and partial table creation.
Fix: #12071
Related: #12056
Shared JDBC preflight: #12065
Shared JDBC preflight PR: #12081
Does this PR introduce any user-facing change?
Yes. Unsupported V3-native schemas now fail deterministically before DDL.
How was this patch tested?
docs/jdbc-hologres-catalog.md.