View Source Xandra.SchemaChange (Xandra v0.19.4)

A struct that represents the result of a query that modifies the schema.

See %Xandra.SchemaChange{} for information on the fields of this struct.

Summary

Types

t()

The type for a schema change result.

Functions

%Xandra.SchemaChange{}

The struct for the "schema change" result.

Types

t()

@type t() :: %Xandra.SchemaChange{
  custom_payload: Xandra.custom_payload() | nil,
  effect: String.t(),
  options: map(),
  target: String.t(),
  tracing_id: binary() | nil
}

The type for a schema change result.

See %Xandra.SchemaChange{} for information.

Functions

%Xandra.SchemaChange{}

(struct)

The struct for the "schema change" result.

This struct has the following fields:

:effect - the type of change involved. It's one of "CREATED", "UPDATED", or "DROPPED".
:target - what has been modified. It's one of "KEYSPACE", "TABLE", or "TYPE".
:options - a map of options that depends on the value of :target:
- if target is "KEYSPACE", the map will have the form %{keyspace: keyspace}
- if the target is "TABLE" or "TYPE", the map will have the form %{keyspace: keyspace, subject: subject} where keyspace is the keyspace where the change happened and subject is the name of what changed (so the name of the changed table or type)
:tracing_id - the tracing ID (as a UUID binary) if tracing was enabled, or nil if no tracing was enabled. See the "Tracing" section in Xandra.execute/4.
:custom_payload - the custom payload sent by the server, if present. If the server doesn't send a custom payload, this field is nil. Otherwise, it's of type Xandra.custom_payload/0. See the "Custom payloads" section in the documentation for the Xandra module.