package Polarx.Notice

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Common Frame for all Notices ===================================================== ===== .type value ===================================================== ===== :protobuf:msg:`Polarx.Notice::Warning` 1 :protobuf:msg:`Polarx.Notice::SessionVariableChanged` 2 :protobuf:msg:`Polarx.Notice::SessionStateChanged` 3 ===================================================== ===== :param type: the type of the payload :param payload: the payload of the notification :param scope: global or local notification

• required uint32 type = 1

• optional Frame.Scope scope = 2

• optional bytes payload = 3

Used in: Frame

• GLOBAL = 1

• LOCAL = 2

• WARNING = 1

• SESSION_VARIABLE_CHANGED = 2

• SESSION_STATE_CHANGED = 3

• GROUP_REPLICATION_STATE_CHANGED = 4

• SERVER_HELLO = 5

Notify clients about changes to the internal session state ========================================== ========= :protobuf:msg:`Polarx.Notice::Frame` field value ========================================== ========= ``.type`` 3 ``.scope`` ``local`` ========================================== ========= :param param: parameter key :param value: updated value

• required SessionStateChanged.Parameter param = 1

• optional Datatypes.Scalar value = 2

• IN_LEADER_TRANSFER_FLAG = 1

  .. more to be added

Used in: SessionStateChanged

• CURRENT_SCHEMA = 1

• ACCOUNT_EXPIRED = 2

• GENERATED_INSERT_ID = 3

• ROWS_AFFECTED = 4

• ROWS_FOUND = 5

• ROWS_MATCHED = 6

• TRX_COMMITTED = 7

• TRX_ROLLEDBACK = 9

• PRODUCED_MESSAGE = 10

• CLIENT_ID_ASSIGNED = 11

• EXTRA_SERVER_STATE = 12

  .. more to be added

Notify clients about changes to the current session variables Every change to a variable that is accessable through: .. code-block:: sql SHOW SESSION VARIABLES ========================================== ========= :protobuf:msg:`Polarx.Notice::Frame` field value ========================================== ========= ``.type`` 2 ``.scope`` ``local`` ========================================== ========= :param namespace: namespace that param belongs to :param param: name of the variable :param value: the changed value of param

• required string param = 1

• optional Datatypes.Scalar value = 2

Server-side warnings and notes ``.scope`` == ``local`` ``.level``, ``.code`` and ``.msg`` map the content of .. code-block:: sql SHOW WARNINGS ``.scope`` == ``global`` (undefined) will be used for global, unstructured messages like: * server is shutting down * a node disconnected from group * schema or table dropped ========================================== ======================= :protobuf:msg:`Polarx.Notice::Frame` field value ========================================== ======================= ``.type`` 1 ``.scope`` ``local`` or ``global`` ========================================== ======================= :param level: warning level: Note or Warning :param code: warning code :param msg: warning message

• optional Warning.Level level = 1

• required uint32 code = 2

• required string msg = 3

Used in: Warning

• NOTE = 1

• WARNING = 2

• ERROR = 3