ISqlDialect gains ParameterMarker (the token in the SQL text), ParameterBindName
(the DbParameter.ParameterName) and ConfigureCommand (per-command provider setup,
where Oracle will set BindByName). SQL Server and the test SQLite dialect answer
"@"+name for both spellings and no-op the hook, so SQL Server behaviour is
byte-identical — every existing expected-SQL assertion passes untouched.
SqlGroupPlanner drops its hardcoded @k/@w consts and mints base names (k0..kN, w)
that the dialect spells; SqlQueryPlan carries the emitted markers AND the matching
bind names, so SqlPollReader keeps copying the plan's pairing rather than
re-deriving a provider convention (the two diverge on ODP.NET: ":k0" in the text,
bare "k0" on the parameter). SqlCatalogLoader and SqlBrowseSession bind
schema/table through the dialect, so their bind names cannot drift from the
markers in the dialect-owned catalog SQL. Every parameter-carrying command site
calls ConfigureCommand before its first parameter.
Controlled by a new test-only ColonMarkerDialect (":name" markers, bare bind
names) that really executes against the SQLite fixture. Each leg was falsified
against the pre-change behaviour: the planner emitted "@k0", the reader bound
":k0", and a hardcoded "@schema" in the loader failed catalog load outright.
Walks schemas -> tables/views -> columns via ISqlDialect's catalog SQL, with
@schema/@table bound as parameters at every level. Column leaves carry the
dialect-mapped DriverDataType in the attribute side-panel (ViewOnly, read-only
v1).
The NodeId encoding deliberately departs from the design sketch's literal
`schema.table|column`: SQL Server permits `.` and `|` inside a quoted
identifier, so that form mis-parses (main.a.b|c reads equally as schema
`main`+table `a.b` and schema `main.a`+table `b`) and silently binds an
operator's tag to the wrong column. SqlBrowseNodeId encodes
`<kind>:<part>[|<part>...]` with `\`/`|` escaped and the kind prefix carrying
the arity; it is public because the picker body decodes it back.
The session owns the connection it is handed and closes it on dispose -- the
registry-held session is the only lifetime hook, so a non-owning session would
leak one pooled connection per reaped picker. Per-call work stays bounded by
the AdminUI's existing 20s linked CTS (BrowserSessionService.PerCallTimeout);
no second deadline is invented here.
Claude-Session: https://claude.ai/code/session_01GASWkNEi68FSCtvr6rLoEW
Joseph Doherty