Struct Query

query.go:18–30

Query wraps a sql.Stmt and all the metrics populated from it. It helps extract keys and values from result rows.

// Query wraps a sql.Stmt and all the metrics populated from it. It helps extract keys and values from result rows.
type Query struct {
	config         *config.QueryConfig
	metricFamilies []*MetricFamily
	// columnTypes maps column names to the column type expected by metrics: key (string) or value (float64).
	columnTypes columnTypeMap
	logContext  string

	durationDesc MetricDesc
	rowsDesc     MetricDesc

	conn *sql.DB
	stmt *sql.Stmt
}

type (
	columnType    int