# Save metrics to an SQL Database
[[outputs.sql]]
  ## Database driver
  ## Valid options: mssql (Microsoft SQL Server), mysql (MySQL), pgx (Postgres),
  ##  sqlite (SQLite3), snowflake (snowflake.com) clickhouse (ClickHouse)
  driver = ""

  ## Data source name
  ## The format of the data source name is different for each database driver.
  ## See the plugin readme for details.
  data_source_name = ""

  ## Timestamp column name, set to empty to ignore the timestamp
  # timestamp_column = "timestamp"

  ## Table creation template
  ## Available template variables:
  ##  {TABLE} - table name as a quoted identifier
  ##  {TABLELITERAL} - table name as a quoted string literal
  ##  {COLUMNS} - column definitions (list of quoted identifiers and types)
  ##  {TAG_COLUMN_NAMES} - tag column definitions (list of quoted identifiers)
  ##  {TIMESTAMP_COLUMN_NAME} - the name of the time stamp column, as configured above
  # table_template = "CREATE TABLE {TABLE}({COLUMNS})"
  ## NOTE: For the clickhouse driver the default is:
  # table_template = "CREATE TABLE {TABLE}({COLUMNS}) ORDER BY ({TAG_COLUMN_NAMES}, {TIMESTAMP_COLUMN_NAME})"

  ## Table existence check template
  ## Available template variables:
  ##  {TABLE} - tablename as a quoted identifier
  # table_exists_template = "SELECT 1 FROM {TABLE} LIMIT 1"

  ## Table update template, available template variables:
  ##  {TABLE} - table name as a quoted identifier
  ##  {COLUMN} - column definition (quoted identifier and type)
  ## NOTE: Ensure the user (you're using to write to the database) has necessary permissions
  ##
  ## Use the following setting for automatically adding columns:
  ## table_update_template = "ALTER TABLE {TABLE} ADD COLUMN {COLUMN}"
  # table_update_template = ""

  ## Initialization SQL
  # init_sql = ""

  ## Send metrics with the same columns and the same table as batches using prepared statements
  # batch_transactions = false

  ## Maximum amount of time a connection may be idle. "0s" means connections are
  ## never closed due to idle time.
  # connection_max_idle_time = "0s"

  ## Maximum amount of time a connection may be reused. "0s" means connections
  ## are never closed due to age.
  # connection_max_lifetime = "0s"

  ## Maximum number of connections in the idle connection pool. 0 means unlimited.
  # connection_max_idle = 2

  ## Maximum number of open connections to the database. 0 means unlimited.
  # connection_max_open = 0

  ## NOTE: Due to the way TOML is parsed, tables must be at the END of the
  ## plugin definition, otherwise additional config options are read as part of
  ## the table

  ## Metric type to SQL type conversion
  ## The values on the left are the data types Telegraf has and the values on
  ## the right are the data types Telegraf will use when sending to a database.
  ##
  ## The database values used must be data types the destination database
  ## understands. It is up to the user to ensure that the selected data type is
  ## available in the database they are using. Refer to your database
  ## documentation for what data types are available and supported.
  #[outputs.sql.convert]
  #  integer              = "INT"
  #  real                 = "DOUBLE"
  #  text                 = "TEXT"
  #  timestamp            = "TIMESTAMP"
  #  defaultvalue         = "TEXT"
  #  unsigned             = "UNSIGNED"
  #  bool                 = "BOOL"
  #  ## This setting controls the behavior of the unsigned value. By default the
  #  ## setting will take the integer value and append the unsigned value to it. The other
  #  ## option is "literal", which will use the actual value the user provides to
  #  ## the unsigned option. This is useful for a database like ClickHouse where
  #  ## the unsigned value should use a value like "uint64".
  #  # conversion_style = "unsigned_suffix"

# Save metrics to an SQL Database
[[outputs.sql]]
  ## Table update template
  table_update_template = "ALTER TABLE {TABLE} ADD COLUMN {COLUMN}"

  [outputs.sql.convert]
    conversion_style     = "literal"
    integer              = "Int64"
    text                 = "String"
    timestamp            = "DateTime"
    defaultvalue         = "String"
    unsigned             = "UInt64"
    bool                 = "UInt8"
    real                 = "Float64"