如何找到主键序列和主键的最大值 [英] How to find the the primary key sequence and the max of primary key

问题描述

我知道这个问题有点愚蠢，我需要运行这些查询以查看值是否不同步，但出现类似关系不存在的错误：

I know this question is kind of silly, I need to run these queries to see if the values are out of sync, but I get an error like 'relation does not exist':

 SELECT MAX(the_primary_key) FROM the_table;   
 SELECT nextval('the_primary_key_sequence');

我有一个名为 Audit的表，其主键列为 auditID。当我运行第一个查询时，我得到了结果：

I have a table named "Audit" with the primary key column 'auditID'. When I run the first query I got the result:

SELECT MAX('auditID') FROM "Audit";
   max
---------
 auditID
 (1 row)

，但最大值应大于10000。

but the max should be more than 10000.

然后我运行第二个查询，并收到错误信息 the_primary_key_sequence或 Audit_auditID_seq不存在。
如何检查是否存在任何主键序列？

Then I run the second query and I get the error 'relation "the_primary_key_sequence" or "Audit_auditID_seq" does not exist'. How can I check if any primary key sequence exists or not?

错误：

select setval('Audit_auditID_seq', 171832, true);
ERROR:  relation "audit_auditid_seq" does not exist
LINE 1: select setval('Audit_auditID_seq', 171832, true);

推荐答案

我弄清楚我所有的问题，引号是在这种情况下真的很敏感；

I figure out all my questions, the quote mark is really sensitive in this case;

 SELECT MAX("auditID") FROM "Audit"; 
   max
--------
 171832
 (1 row)

 SELECT nextval('"Audit_auditID_seq"');
 ----
 139801

并最终使值相同：

 select setval('"Audit_auditID_seq"', 171832, true);

如果需要找出序列，请使用

If you need to find out the sequence, use

 \d "table_name";

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