/* Important SQL Server error log entries, summed per collection and error (corruption, slow I/O, severe errors, login
   failures, stack dumps, AG). Sample is a message and can name logins and addresses: local only. Kept EventDays. */
CREATE TABLE insight.ErrorLogEvents
(
    EventId     bigint IDENTITY(1, 1) NOT NULL CONSTRAINT PK_ErrorLogEvents PRIMARY KEY NONCLUSTERED,
    InstanceId  int NOT NULL,
    CollectedAt datetime2(0) NOT NULL,
    Category    varchar(32) NOT NULL,
    Error       int NULL,
    Severity    int NULL,
    [Count]     int NOT NULL,
    FirstAt     datetime2(0) NOT NULL,
    LastAt      datetime2(0) NOT NULL,
    Sample      nvarchar(500) NULL,
    Source      varchar(16) NOT NULL
);

CREATE CLUSTERED INDEX CX_ErrorLogEvents ON insight.ErrorLogEvents (InstanceId, LastAt);