google_api_spanner v0.16.0 GoogleApi.Spanner.V1.Model.Mutation View Source
A modification to one or more Cloud Spanner rows. Mutations can be applied to a Cloud Spanner database by sending them in a Commit call.
Attributes
delete
(type:GoogleApi.Spanner.V1.Model.Delete.t
, default:nil
) - Delete rows from a table. Succeeds whether or not the named rows were present.insert
(type:GoogleApi.Spanner.V1.Model.Write.t
, default:nil
) - Insert new rows in a table. If any of the rows already exist, the write or transaction fails with errorALREADY_EXISTS
.insertOrUpdate
(type:GoogleApi.Spanner.V1.Model.Write.t
, default:nil
) - Like insert, except that if the row already exists, then its column values are overwritten with the ones provided. Any column values not explicitly written are preserved.When using insert_or_update, just as when using insert, all
NOT NULL
columns in the table must be given a value. This holds true even when the row already exists and will therefore actually be updated.replace
(type:GoogleApi.Spanner.V1.Model.Write.t
, default:nil
) - Like insert, except that if the row already exists, it is deleted, and the column values provided are inserted instead. Unlike insert_or_update, this means any values not explicitly written becomeNULL
.In an interleaved table, if you create the child table with the
ON DELETE CASCADE
annotation, then replacing a parent row also deletes the child rows. Otherwise, you must delete the child rows before you replace the parent row.update
(type:GoogleApi.Spanner.V1.Model.Write.t
, default:nil
) - Update existing rows in a table. If any of the rows does not already exist, the transaction fails with errorNOT_FOUND
.
Link to this section Summary
Functions
Unwrap a decoded JSON object into its complex fields.
Link to this section Types
t()
View Sourcet() :: %GoogleApi.Spanner.V1.Model.Mutation{ delete: GoogleApi.Spanner.V1.Model.Delete.t(), insert: GoogleApi.Spanner.V1.Model.Write.t(), insertOrUpdate: GoogleApi.Spanner.V1.Model.Write.t(), replace: GoogleApi.Spanner.V1.Model.Write.t(), update: GoogleApi.Spanner.V1.Model.Write.t() }
Link to this section Functions
Unwrap a decoded JSON object into its complex fields.