Aggregate Functions

Aggregate functions compare or combine values in a column and return a single result based on those values.

Certain restrictions apply to the use of aggregate functions with the DISTINCT clause. See DISTINCT in Aggregate Functions.

If any column in the SELECT clause is outside of an aggregate function, you must also include the column in the GROUP BY clause. See the example given for AVG.

TDV supports the aggregate functions listed in the table below.

TDV Supported Aggregate Function	Comments
ANY_VALUE	ANY_VALUE
APPROX COUNT DISTINCT	APPROX_COUNT_DISTINCT
APPROX QUANTILES	APPROX_QUANTILES
ARRAG_AGG	ARRAY_AGG
AVG	AVG.
BIT_AND	BIT_AND
BIT_OR	BIT_OR
BIT_XOR	BIT_XOR
CORR	CORR.
CORR_SPEARMAN	CORR_SPEARMAN
COUNT	COUNT.
COVAR_POP	COVAR_POP
COVAR_SAMP	COVAR_SAMP.
FIRST	FIRST
GROUP CONCAT	GROUP_CONCAT
GROUP CONCAT UNQUOTED	GROUP_CONCAT_UNQUOTED
LAST	LAST
JSON ARRAYAGG	JSON_ARRAYAGG
JSON OBJECTAGG	JSON_OBJECTAGG
LISTAGG	LISTAGG LISTAGG.
MAX	MAX
MEDIAN	MEDIAN
MIN	MIN.
NEST	NEST
NTH	NTH
PERCENTILE	PERCENTILE
PERCENTILE_APPROX	PERCENTILE_APPROX
PERCENTILE_CONT	PERCENTILE_CONT.
PERCENTILE_DISC	PERCENTILE_DISC.
QUANTILES	QUANTILES
REGR_AVGX	REGR_AVGX.
REGR_AVGY	REGR_AVGY.
REGR_COUNT	REGR_COUNT.
REGR_INTERCEPT	REGR_INTERCEPT.
REGR_R2	REGR_R2.
REGR_SLOPE	REGR_SLOPE.
REGR_SXX	REGR_SXX.
REGR_SXY	REGR_SXY.
REGR_SYY	REGR_SYY.
STDDEV	STDDEV.
STDDEV_POP	STDDEV_POP.
STDDEV_SAMP	STDDEV_SAMP.
SUM	SUM.
SUM_FLOAT	SUM_FLOAT
VARIANCE	VARIANCE.
VARIANCE_POP	VAR_POP.
VARIANCE_SAMP	VAR_SAMP.
XMLAGG	XMLAGG.

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