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clickhouseJOIN query example

SELECT * FROM tbl1 t1 JOIN tbl2 t2 ON (t1.id = t2.event_id)ctrl + c
tbl1 t1

first table with alias

tbl2 t2

second table to join to tbl1


will select rows matching tbl1 and tbl2


condition to join rows from specified tables

t1.id = t2.event_id

will select all rows from tbl2 where event_id column is equal to id column of tbl1