PGError：錯誤：在「NULL」處或附近的語法錯誤

Question

無法弄清楚這個postgresql錯誤在說什麼。

PGError: ERROR: syntax error at or near "NULL" 
LINE 1: ...at` < '2011-01-18 21:52:21.607956' OR `checked_at` IS NULL) 
                   ^
: SELECT * FROM "accounts" WHERE (`checked_at` < '2011-01-18 21:52:21.607956' OR `checked_at` IS NULL) 

任何想法可能是什麼？

Answer 1

反引號是你的問題。

SELECT * FROM accounts WHERE (checked_at < '2011-01-18 21:52:21.607956' OR checked_at IS NULL) 

Answer 2

試試這個：

SELECT * FROM accounts WHERE (checked_at < '2011-01-18 21:52:21.607956' OR checked_at IS NULL)