如何跳过INSERT语句中引发的异常？

Question

当我运行以下SQL代码时：

INSERT INTO table
(column1, column1)
SELECT column1, column2
FROM other_table
WHERE column2 = 'foo'
ON CONFLICT DO NOTHING;

我知道

PG::CheckViolation: ERROR:
new row for relation "table" violates
check constraint "tables_column1_valid_first_char"

如何跳过违反该检查约束的行？

我尝试过

INSERT INTO table
(column1, column1)
SELECT column1, column2
FROM other_table
WHERE column2 = 'foo'
ON CONFLICT  ON CONSTRAINT tables_column1_valid_first_char DO NOTHING;

但是失败了>>

PG::WrongObjectType: ERROR:
constraint in ON CONFLICT clause has no associated index
该约束如下：

ADD CONSTRAINT tables_column1_valid_first_char
  CHECK (SUBSTRING(text, 1,1) ~* '^[a-zàâçéèêëîïôûùüÿæœ]');

当我运行以下SQL代码时：INSERT INTO表（column1，column1）SELECT column1，column2 FROM other_table WHERE column2 ='foo'ON CONFLICT DO NOTHING;我得到PG :: CheckViolation：错误：新...

Answer 1

ON CONFLICT仅处理唯一约束，不适用于检查约束（或外键约束）。