[I] Full-text search returns nothing instead of scanning raw data when no full-text index exists [paimon]

["LuciferYang (via GitHub)" <gi...@apache.org>]

LuciferYang opened a new issue, #10285:
URL: https://github.com/apache/paimon/issues/10285

   ### Search before asking
   
   - [X] I searched in the [issues](https://github.com/apache/paimon/issues) and found no similar issues.
   
   ### Paimon version
   
   master (1.5-SNAPSHOT)
   
   ### Compute Engine
   
   Spark / Flink full-text search over a data-evolution table (with `paimon-full-text`).
   
   ### Minimal reproduce step
   
   1. Create a data-evolution table with a full-text-indexed column.
   2. Write data but do not build the full-text index (index building is a separate commit from data writes), or query after the index has expired.
   3. Run a full-text search in FULL or DETAIL mode.
   
   ### What doesn't meet your expectations?
   
   The search returns zero rows instead of scanning the raw data. In `DataEvolutionFullTextScan`, the raw-data compensation split (for rows not covered by a full-text index) is gated on `if (!fullTextIndexFiles.isEmpty())`, so when no index exists the compensation is skipped and the plan is empty. `unindexedRanges` would correctly return the whole row-id space (FULL) or the data-file ranges (DETAIL). FAST mode is correctly empty.
   
   ### Anything else?
   
   There is also a read-side `checkNotNull` on a null index type that would NPE once the scan-side gate is removed; the raw fallback index type needs to resolve to the built-in `full-text` type.
   
   ### Are you willing to submit a PR?
   
   - [X] I'm willing to submit a PR!
   


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Re: [I] Full-text search returns nothing instead of scanning raw data when no full-text index exists [paimon]

["LuciferYang (via GitHub)" <gi...@apache.org>]

LuciferYang closed issue #10285: Full-text search returns nothing instead of scanning raw data when no full-text index exists
URL: https://github.com/apache/paimon/issues/10285


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