FIXME: write docs

Compose the body of an SQL `SELECT` statement for a convenience view of this
`entity` within this `application`, recursively. `top-level?` should be set
only on first invocation.

Compose an SQL `WHERE` clause for a convenience view of this
`entity` within this `application`.
TODO: does not correctly compose links at one stage down the tree.
See `lv_electors`, `lv_followuprequests` for examples of the problem.

Create a dummy property for a link-table referencing this `entity`, in order
that the field generation functions already defined may be applied to it.

Emit all SQL declarations required to initialise a Postgres database for
this `application`.

FIXME: write docs

Emit a convenience view of this `entity` of this `application` for use in generating lists,
menus, et cetera.

Generate appropriate field type and constraints for this `property`
given this `typedef`.

Emit an appropriate field type for this `property`, expected to reference an entity, in this `application`.

Emit an appropriate field type for this `property`, expected to belong to
this `entity` within this `application`.

Generate an appropriate file header for the Postgres initialisation script
for this `application`.

Emit a declaration for this authorisation `group` within this `application`.

Emit an appropriate link field for this `property` of this `entity`
within this `application`.

Emit a link table for the specified `property` of the entity `e1` within
this `application`, provided that such a table has not already been emitted
from the other end. The argument `emitted-link-tables` contains an atom
which references a set of the names of all those link tables which have
already been emitted, and this is modified in the execution of this function.

Emit all required link tables for this `entity` within this `application`,
given these `emitted-link-tables` which have already been emitted.

Emit an appropriate grant of permissions on this `table-name` at this
`privilege` level given these `permissions`. `privilege` is expected
to be one of #{:SELECT :INSERT :UPDATE :DELETE}.
TODO: more thought needed here.

Emit a field declaration representing this `property` of this `entity` within this `application`.

Emit a referential integrity link for this `property` of the entity
`nearside` within this `application`.

Emit all appropriate referential integrity links for this `entity`
within this `application`.

Emit a table declaration for this `entity` of this `application`,
documented with this `doc-comment` if specified.

Return the appropriate field name for this `property`.
TODO: really belongs in `adl-support.utils`.

Generate a complete Postgres database initialisation script for this `application`.