clickhouseUsing groupArray in queries
SELECT date, groupArray(col) FROM tbl GROUP BY datectrl + ctbltable to select data from | datecolumn to group by |
groupArraywill group all column values into an array | colcolumn which values to group into an array |
Usage example
SELECT date, groupArray(col) FROM tbl GROUP BY dateoutput
┌───────date─┬─groupArray(col)─────────────────────────────────────────────────────────────────────────────┐
│ 1970-01-01 │ ['hi','Donald','hi','Donald','hi','Donald','hi','Donald','hi','Donald'] │
│ 2022-01-07 │ ['Donald','Donald','Donald','Donald','Donald','Donald','Donald','Donald','Donald','Donald'] │
│ 2022-01-10 │ ['Donald','Donald','Donald','Donald','Donald'] │
│ 2022-01-11 │ ['Donald','Donald','Donald','Donald','Donald','Donald','Donald','Donald','Donald','Donald'] │
│ 2022-01-12 │ ['Donald','Donald','Donald','Donald','Donald'] │
│ 2022-01-14 │ ['hi','good'] │
└────────────┴─────────────────────────────────────────────────────────────────────────────────────────────┘
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