PostgreSQL

** See the License for the specific language governing permissions and

** limitations under the License.

**/

​

package plugin

​

import (

    "context"

    "errors"

​

    "github.com/jackc/pgx/v4"

)

​

// bgwriterHandler executes select  with statistics from pg_stat_bgwriter

// and returns JSON if all is OK or nil otherwise.

func bgwriterHandler(ctx context.Context, conn PostgresClient,

    _ string, _ map[string]string, _ ...string) (interface{}, error) {

    var bgwriterJSON string

​

    query := `

  SELECT row_to_json (T)