pgx是否支持“where in”子句?我在另一个stackoverflow线程中发现应该使用字符串连接手动构建查询。但是我认为这有点容易出错,因为必须自己处理转义/ SQL注入等问题。
我也尝试了自己解决:
const updatePurgedRecordingsStmt = "update recordings set status = 'DELETED', deleted = now() where status <> 'DELETED' and id in ($1);"
func (r *Repository) DeleteRecordings() error {
pool, err := r.connPool()
if err != nil {
return errors.Wrap(err, "cannot establish connection")
}
pgRecIds := &pgtype.Int4Array{}
if err := pgRecIds.Set([]int32{int32(1), int32(2)}); err != nil {
return errors.Wrap(err, "id conversion failed")
}
if _, err = pool.Exec(updatePurgedRecordingsStmt, pgRecIds); err != nil {
return errors.Wrap(err, "update stmt failed")
}
return nil
}
当我执行此代码时,我却收到以下错误:
错误:绑定参数1中的二进制数据格式不正确(SQLSTATE 22P03)
我使用的版本为:
Postgres:
db=> SELECT version();
version
-----------------------------------------------------------------------------------------------------------
PostgreSQL 9.6.11 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.2 20140120 (Red Hat 4.8.2-16), 64-bit
(1 row)
PGX:
github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 h1:vr3AYkKovP8uR8AvSGGUK1IDqRa5lAAvEkZG1LKaCRc=
github.com/jackc/fake v0.0.0-20150926172116-812a484cc733/go.mod h1:WrMFNQdiFJ80sQsxDoMokWK1W5TQtxBFNpzWTD84ibQ=
github.com/jackc/pgx v3.3.0+incompatible h1:Wa90/+qsITBAPkAZjiByeIGHFcj3Ztu+VzrrIpHjL90=
github.com/jackc/pgx v3.3.0+incompatible/go.mod h1:0ZGrqGqkRlliWnWB4zKnWtjbSWbGkVEFm4TeybAXq+I=
github.com/lib/pq v1.0.0 h1:X5PMW56eZitiTeO7tKzZxFCSpbFZJtkMMooicw2us9A=
github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
[]int32
,否则Int4Array会返回一个转换错误。 - u6f6o... WHERE id = ANY ('string1', 'string2', ... );
- Loveen Dyallparamrefs
而言,本质上与以下链接中的内容相同:https://go.dev/play/p/VQ8UNWZRqSQ - mkopriva