【Clickhouse】Clickhouse PRIMARY KEY, CONSTRAINT, identifier, column declaration, INDEX1.背景
1.背景clickhouse建表报错，错误信息如下1fe7c44838a1 :) create table ailpha_baas_flow ( id Int32, fileName String, @subCategory String ) engine=MergeTree() order by id;Syntax error: failed at position 70 ('@') (line 4, col 1):create table ailpha_baas_flo
