IB history frames omit the derived `index` and append `count`.
Normalize provider data to durable names, order, and dtypes before
merge, and reject fractional epoch truncation.
Also,
- map canonical storage fields into provider-specific SHM on reload
- select Polars columns by name instead of position
- exercise first-start and restart through actor, SHM, and Parquet
Prompt-IO: ai/prompt-io/opencode/20260727T212454Z_689df816_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
`datad`'s persistent feed task already owns each series writer.
The actor-local and file locks duplicated this SC contract and left
`.parquet.lock` sidecars that upstream indexed as data.
- preserve validated temp writes, `fsync()`, and atomic replacement
- keep exact-suffix indexing for legacy lock and temp sidecars
- prove full and incremental writes create no lock artifacts
Prompt-IO: ai/prompt-io/opencode/20260727T204711Z_84a6d47b_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
- merge provider deltas without dropping unaffected history
- validate reopened temp parquet before atomic replacement
- serialize writers with actor-local and cancellable file locks
- publish cache only after disk replacement
- persist full startup/backfill frames before SHM publication
- bound sampler notifications and avoid MarketStore duplicates
Prompt-IO: ai/prompt-io/opencode/20260722T024134Z_3a4f6737_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
Gud Boi