Month: 2025-03 – Delivered key performance and configurability improvements across two repos, strengthening both runtime efficiency and SQL parsing flexibility. In spiceai/datafusion, introduced Concurrent Metadata Fetching for ListingTable, reducing latency during physical plan creation by avoiding sequential metadata fetches. This feature aligns with the ongoing effort to accelerate planning workloads on large datasets. The improvement is complemented by a targeted fix to a high-latency path in ListingTable metadata fetching (commit 1a6390b7cedee16707b5095b371ac8790528d92f), addressing the root cause of planning delays. In substrait-io/substrait-java, added Isthmus CLI --unquotedcasing option to control how unquoted identifiers are cased by the SQL parser, integrating Calcite's casing policy and wiring the setting through IsthmusEntryPoint and FeatureBoard to SqlParser.Config (commit f859c2e9f64cd9ff8873b06aa4e45bde8b7071ae).