https://cdelmonte.dev/tags/observability/ Recent content in Observability on cdelmonte.dev Hugo -- 0.147.7 en-us Mon, 13 Apr 2026 00:00:00 +0000 https://cdelmonte.dev/deep-dives/delta-explain-making-delta-pruning-visible/ Mon, 13 Apr 2026 00:00:00 +0000 https://cdelmonte.dev/deep-dives/delta-explain-making-delta-pruning-visible/ Partition pruning and data skipping are invisible by default. delta-explain reads the Delta log directly and shows, step by step, how a WHERE predicate narrows down candidate files — no engine required.