The MySQL and PostgreSQL backends are pure Elisp — no libpq, no mysql CLI, no FFI.

MySQL: full wire protocol, caching_sha2_password + native_password auth, TLS via GnuTLS, prepared statements, binary protocol.

PostgreSQL: wire protocol v3, SCRAM-SHA-256 + MD5, TLS, OID-based type parsing (json/jsonb, bytea, numerics, dates…).

The result browser is column-paged — no horizontal scrolling. Columns that don't fit get a ◂▸ indicator and you page through them with [ and ].

Fixed header row, row numbers, right-aligned numerics, sort indicators, and a tab-line showing row count, page, elapsed time, staged-change summary, and active filters.

Results aren't read-only. You can:

• Edit a cell → staged UPDATE
• Press o → staged INSERT row
• Press d → staged DELETE row
• C-c C-p to preview the exact SQL before anything runs
• C-c C-c to execute INSERT → UPDATE → DELETE in order, with a confirmation prompt showing every statement

Tab-completion for table and column names, scoped to the current SQL statement. Eldoc shows type, nullability, PK/FK references, and comments for the symbol at point — no hover required.

Schema browser (C-c C-t) with expandable column details. Schema state is surfaced everywhere: buffer name shows [schema 42t], header-line warns on stale/failed.