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dennis zhuang d6c37778ae feat: table semantic layer information_schema view (Phase 3) (#8240 )

* feat: table semantic layer information_schema view (Phase 3)

Add `information_schema.table_semantics`, a queryable view over the table
semantic layer. One row per table that carries at least one
`greptime.semantic.*` option: the signal-agnostic keys
(signal_type/source/pipeline/metadata_quality) are promoted to columns and
the remaining signal-specific keys are folded into a `semantic_options`
JSON string. Tables with no semantic key are excluded.

Stacked on Phase 2.

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* chore: address PR review on table_semantics

- fold JSON serialization failure into None instead of unwrap/panic
- drop per-row Vec allocation in predicate eval; use a fixed array
- align RFC view name with the shipped `table_semantics`

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* chore: update results

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

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Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

2026-06-05 08:16:41 +00:00

banner

docs: add event banner (#2518 )

2023-09-28 08:08:43 +00:00

benchmarks

fix: doc links (#6305 )

2025-07-04 09:52:47 +00:00

how-to

refactor: SQL and gRPC server handlers (#7637 )

2026-01-30 07:19:45 +00:00

rfcs

feat: table semantic layer information_schema view (Phase 3) (#8240 )