LibreDB Studio — Trino postsPosts about Trino from the LibreDB Studio blog.https://libredb.org/blog/engine/trino/enTrino refuses a password over plain HTTPhttps://libredb.org/blog/trino-password-requires-tls/https://libredb.org/blog/trino-password-requires-tls/Measured against a coordinator with authentication switched off, a basic auth header over plain HTTP still answers 401, so the connection is refused early.Wed, 29 Jul 2026 09:00:00 GMTLibreDBTrinoEngineeringDatabasesSecurityPaging Trino, and the session settings that do not stickhttps://libredb.org/blog/trino-offset-before-limit-stateless-session/https://libredb.org/blog/trino-offset-before-limit-stateless-session/The clause order is transposed for you and a trailing semicolon is a syntax error, while a session setting succeeds and then affects nothing.Wed, 01 Jul 2026 09:00:00 GMTLibreDBTrinoEngineeringDatabasesWhy a Trino diagram draws boxes and never edgeshttps://libredb.org/blog/trino-no-keys-boxes-without-edges/https://libredb.org/blog/trino-no-keys-boxes-without-edges/The catalog views a connector could declare a key through do not exist here, so the empty edge set is the engine answer rather than an empty schema.Sun, 17 May 2026 09:00:00 GMTLibreDBTrinoEngineeringDatabasesMonitoring a query engine that stores nothinghttps://libredb.org/blog/trino-monitoring-owns-no-storage/https://libredb.org/blog/trino-monitoring-owns-no-storage/Nodes, sessions, slow queries and per-catalog connectors all report, while database size is N/A rather than zero, because there is no storage to measure.Tue, 31 Mar 2026 09:00:00 GMTLibreDBTrinoEngineeringDatabasesTrino plans are planned, never analyzedhttps://libredb.org/blog/trino-explain-format-json-only/https://libredb.org/blog/trino-explain-format-json-only/Only the planning form is ever emitted, because the analyze form executes the statement and a plan view reaching object storage twice is a real invoice.Thu, 12 Feb 2026 09:00:00 GMTLibreDBTrinoEngineeringDatabasesOn a Trino connection the database field is a cataloghttps://libredb.org/blog/trino-database-field-is-a-catalog/https://libredb.org/blog/trino-database-field-is-a-catalog/Pinning a catalog scopes the whole tree two levels deep, and a connection that pins none still connects and runs fully qualified statements with no tree.Fri, 26 Dec 2025 09:00:00 GMTLibreDBTrinoEngineeringDatabases