SqlMapping

State required to assign table and column aliases.

Used when rendering an SqlQuery as a Fragment. Table aliases are assigned as needed for recursive queries. Column aliases are assigned to disambiguate collections of columns generated by subqueries and unions.

Trait representing an owner of an `SqlColumn

ColumnOwners are tables, SQL queries and subqueries, common table expressions and the like. Most, but not all have a name (SqlSelect, SqlUnion and SqlJoin being unnamed examples)

Name of a SQL schema column and its associated codec, Scala type an defining source position within an SqlMapping.

Columns are considered equal if their table and column names are equal.

Note that ColumnRef primarily play a role in mappings. During compilation they will be used to construct SqlColumns.

Enumeration representing a kind of field mapping

A pair of ColumnRefs, representing a SQL join.

Cursor positioned at a GraphQL result leaf

Represents the mapping of a GraphQL query to an SQL query

Trait representing an SQL column

Wraps an SqlColumn as a Term which can appear in a Predicate

Cursor positioned at a GraphQL result non-leaf

Common super type for mappings which have a programmatic discriminator, ie. interface and union mappings.

Discriminator for the branches of an interface/union

Representation of a SQL query in a context

Representation of an SQL query result

Representation of a table expression

Root mappings can perform a mutation prior to constructing the result Cursor. A Mutation may perform a Unit effect and simply return the passed arguments; or it may refine the passed Query and/or Env that will be used to interpret the resulting Cursor.

Typeclass for SQL fragments.

The type of a codec that reads and writes column values of type A.

The type of an encoder that writes column values of type A.

The type of a fragment of SQL together with any interpolated arguments.

Returns the aliased column corresponding to the atomic field fieldName in context

Returns the aliased columns corresponding to term in context

Returns the columns for leaf field fieldName in context

Returns the discriminator columns for the context type

Returns the discriminator for the type at context

Returns the Encoder for the given type

Returns the Encoder for the given term in context

Return an indicator of the kind of field mapping corresponding to fieldName in context

Is the context type mapped to an associative table?

Is fieldName in context computed?

Is fieldName in context Jsonb?

Does the supplied field correspond to a single, possibly structured, value?

Is term in contextexpressible in SQL?

Returns the key columns for the context type

Does the type of fieldName in context represent a list of subobjects?

Returns the table for the type at context

Extract an encoder from a codec.