問題文
A team wants to reduce the indexing cost of a search service whose source table is rebuilt every night with a create-or-replace statement. Which change helps most?
選択肢
- Lower the target lag so refreshes are smaller, which spreads the same embedding work over many short runs.
- Update the source table incrementally instead, because replacing it causes the service to fully refresh and re-embed every vector.
- Add more columns to the service, giving the index more of the text to match a query against.
- Increase the warehouse size so the full refresh completes faster, since most of the indexing time goes to the embedding step that more cores shorten.