(UNKNOWN_IDENTIFIER) 查具体字段不会报错: select id,name,timestamp,day from tb_test_all02; 查新增字段会报错误 select name1 from tb_test_all02; 那么本地表也需要添加字段 ALTER TABLE tb_test_local02 ON CLUSTER default ADD COLUMN name1 String; 2.分布式表删除字段 ALTER TABLE tb_test_all02 ...
Code: 47. DB::Exception: Received from localhost:9000. DB::Exception: Missing columns: '123' while processing query: 'SELECT `123`', required columns: '123'. (UNKNOWN_IDENTIFIER) 通过报错日志:Missing columns: '123' ,可以看出,对双引号里面的内容,ClickHouse 是当成列名来处理的。 我们可以通过源...
别名在当前查询的子查询及不同子查询中是不可见的。例如,执行如下查询SQL:SELECT (SELECT sum(b.a) + num FROM b) - a.a AS num FROM a,ClickHouse会提示异常Unknown identifier: num. 如果给select子查询语句的结果列定义其别名,那么在外层可以使用该别名。例如,SELECT n + m FROM (SELECT 1 AS n, 2...
Code: 47. DB::Exception: Received from localhost:9000. DB::Exception: Unknown identifier: data there are columns: period, data1, 1, equals(1, 1), 0, if(equals(1, 1), 0, data1): While processing period AS period, if(1 = 1, 0, data1) AS data, if(1 = 1, 0, data) AS ...
DB::Exception: Unknown identifier: a.campaign_id , context: required_names: 'a.campaign_id' source_tables: table_aliases: private_aliases: column_aliases: public_columns: masked_columns: array_join_columns: source_columns: . 问题排查 经官网和google查询ClickHouse不支持ALTER TABLE UPDATE的相关联接...
2 分布表join问题Unknown identifier: LO_CUSTKEY, context:… 1.1 问题描述 SQL如下: SELECT count(1) FROM performance.line_all AS c LEFT JOIN performance.customer_all AS l ON l.C_CUSTKEY = c.LO_CUSTKEY 1. 2. 3. 执行该SQL报错如下: ...
I met some strange Clickhouse's behaviour in my work, so i made very short script to reproduce it: -- drop table zd__test; create table zd__test ( id Int8, flg Int8 ) engine = Memory(); select 1 as flg from zd__test t where t.flg = 1; An...
$ curl'http://localhost:8123/'--data-binary"SELECT a"Code: 47, e.displayText() = DB::Exception: Unknown identifier: a. Note that there are no tables (FROM clause)inyour query, context: required_names:'a'source_tables: table_aliases: private_aliases: column_aliases: public_columns:'a'...
Code: 47, e.displayText() = DB::Exception: Unknown identifier: a. Note that there are no tables (FROM clause) in your query, context: required_names: 'a' source_tables: table_aliases: private_aliases: column_aliases: public_columns: 'a' masked_columns: array_join_columns: source_columns...
别名在当前查询的子查询及不同子查询中是不可见的。例如,执行如下查询SQL: SELECT (SELECT sum(b.a) + num FROM b) - a.a AS num FROM a ,ClickHouse会提示异常 Unknown identifier: num. 如果给select子查询语句的结果列定义其别名,那么在外层可以使用该别名。例如, SELECT n + m FROM (SELECT 1 AS ...