Function try_pg_catalog

nodedb/src/control/server/pgwire/pg_catalog/dispatch.rs:30–36

Try to handle a SQL query as a pg_catalog virtual-table lookup. Returns `Some(Ok(response))` if the query targets a known virtual table, `None` if the query should fall through to the normal planner.

(
    state: &SharedState,
    identity: &AuthenticatedIdentity,
    sql: &str,
)

/// Returns `Some(Ok(response))` if the query targets a known virtual table,
/// `None` if the query should fall through to the normal planner.
pub async fn try_pg_catalog(
    state: &SharedState,
    identity: &AuthenticatedIdentity,
    sql: &str,
) -> Option<PgWireResult<Vec<Response>>> {
    try_pg_catalog_with_params(state, identity, sql, &[]).await
}

/// Same as [`try_pg_catalog`] but binds prepared-statement parameters into
/// the SQL before evaluation. The extended-query path uses this so