聚合函数
- 聚合函数概述
- ANY
- ANY_VALUE
- APPROX_DISTINCT
- ARG_MAX
- ARG_MIN
- AVG
- BITWISE_AND_AGG
- BITWISE_OR_AGG
- BITWISE_XOR_AGG
- BOOL_AND
- BOOL_OR
- COLLECT_LIST
- COLLECT_SET
- CORR
- COUNT
- COUNT_IF
- COVAR_POP
- COVAR_SAMP
- HISTOGRAM
- MAP_AGG
- MAP_UNION
- MAP_UNION_SUM
- MAX
- MAX_BY
- MEDIAN
- MIN
- MIN_BY
- MULTIMAP_AGG
- NUMERIC_HISTOGRAM
- PERCENTILE
- PERCENTILE_APPROX
- PERCENTILE_CONT
- PERCENTILE_DISC
- STDDEV
- STDDEV_SAMP
- VAR_SAMP
- VARIANCE/VAR_POP
- WM_CONCAT