Core: Freshness-aware table loading with lazy snapshot loading #15274
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REST catalog's client-side table cache contains table suppliers that can be used to construct table objects. These suppliers encapsulate different building blocks of a table, including TableMetadata. Lazy snapshot loading populates the list of snapshots in-place within TableMetadata. As a result, loading the full list of snapshots will also update the table supplier in the table cache. After loading the full snapshot list once, all the later answers from the table cache will contains this full snapshot list.
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Additional context: this was identified as one of the potential follow-ups for the basic freshness-aware loading functionality. When I started working on this I realized that this in fact already works, so I added a new test for coverage. |
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REST catalog's client-side table cache contains table suppliers that can be used to construct table objects. These suppliers encapsulate different building blocks of a table, including TableMetadata. Lazy snapshot loading populates the list of snapshots in-place within TableMetadata. As a result, loading the full list of snapshots will also update the table supplier in the table cache. After loading the full snapshot list once, all the later answers from the table cache will contains this full snapshot list.