Query Engine
Analytical queries run on ClickHouse. The SQL console is not public yet; the engine and the tables are the same ones the API reads.
Dialect
ClickHouse SQL. Use toStartOfHour, count(), sum() and INTERVAL. Do not expect PostgreSQL-only functions to work.
What you can query
Live datasets: arc.blocks, arc.transactions, arc.logs, token.transfers. Building and Coming Soon tables are absent, not empty.
BuildingRead-only. There is no INSERT path for customers, and there will not be.