Arguments:
value
is any numeric value.
Return value:
Return value type is double
.
Examples:
SELECT payment_type, avg(amount) FROM transactions;
cash_or_card | avg |
---|---|
cash | 22.1 |
card | 27.4 |
null | 18.02 |
count
count()
or count(*)
- counts rows irrespective of underlying data.
Arguments:
Return value:
Return value type is long
.
Examples:
- Count of rows in the transactions table.
SELECT count() FROM transactions;
count |
---|
100 |
- Count of rows in the transactions table aggregated by
payment_type
value.
SELECT payment_type, count() FROM transactions;
cash_or_card | count |
---|---|
cash | 25 |
card | 70 |
null | 5 |
:::note
null
values are aggregated with count()
.
:::
haversine_dist_deg(lat, lon, ts)
- calculates the traveled distance for a series of latitude and longitude points.
Arguments:
lat
is the latitude expressed as degrees in decimal format (double
)- is the longitude expressed as degrees in decimal format (
double
) ts
is thetimestamp
for the data point
Return value type is double
.
Examples:
ksum
ksum(value)
- adds values ignoring missing data (e.g null
values). Values are added using the
. This is only beneficial for floating-point values such as float
or double
.
Arguments:
value
is any numeric value.
Return value:
Return value type is the same as the type of the argument.
Examples:
SELECT ksum(a)
FROM (SELECT rnd_double() a FROM long_sequence(100));
max(value)
- returns the highest value ignoring missing data (e.g null
values).
Arguments:
Return value:
Return value type is the same as the type of the argument.
Examples:
SELECT max(amount) FROM transactions;
min |
---|
55.3 |
SELECT payment_type, max(amount) FROM transactions;
cash_or_card | amount |
---|---|
cash | 31.5 |
card | 55.3 |
null | 29.2 |
min
- returns the lowest value ignoring missing data (e.g null
values).
value
is any numeric value
Return value:
Return value type is the same as the type of the argument.
Examples:
min |
---|
12.5 |
SELECT payment_type, min(amount) FROM transactions;
nsum(value)
- adds values ignoring missing data (e.g null
values). Values are added using the . This is only beneficial for floating-point values such as float
or double
.
Arguments:
value
is any numeric value.
Return value:
Return value type is the same as the type of the argument.
Examples:
SELECT nsum(a)
FROM (SELECT rnd_double() a FROM long_sequence(100));
nsum |
---|
49.5442334742831 |
sum
sum(value)
- adds values ignoring missing data (e.g null
values).
Arguments:
value
is any numeric value.
Return value:
Return value type is the same as the type of the argument.
Examples:
SELECT sum(quantity) FROM transactions;
sum |
---|
100 |
item | count |
---|---|
apple | 53 |
orange | 47 |
sum
does not perform overflow check. To avoid overflow, you can cast the argument to wider type.
SELECT sum(cast(a AS LONG)) FROM table;