mysql - 更新记录时出错

Question

我收到 mysql 错误:

#update (ActiveRecord::StatementInvalid) "Mysql::Error: #HY000Got 来自存储引擎的错误 139:

当尝试更新长度为 1429 个字符的字符串的记录上的文本字段时，关于如何追踪问题有什么想法吗？

下面是堆栈跟踪。

from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb:147:in `log'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb:299:in `execute'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:167:in `update_sql'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb:314:in `update_sql'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:49:in `update_without_query_dirty'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:19:in `update'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/base.rb:2481:in `update_without_lock'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/locking/optimistic.rb:70:in `update_without_dirty'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/dirty.rb:137:in `update_without_callbacks'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/callbacks.rb:234:in `update_without_timestamps'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/timestamp.rb:38:in `update'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/base.rb:2472:in `create_or_update_without_callbacks'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/callbacks.rb:207:in `create_or_update'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/base.rb:2200:in `save_without_validation'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/validations.rb:901:in `save_without_dirty'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/dirty.rb:75:in `save_without_transactions'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/transactions.rb:106:in `save'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:66:in `transaction'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/transactions.rb:79:in `transaction'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/transactions.rb:98:in `transaction'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/transactions.rb:106:in `save'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/transactions.rb:118:in `rollback_active_record_state!'
from /var/www/releases/20081002155111/vendor/rails/activerecord/lib/active_record/transactions.rb:106:in `save'

Answer 1

当您说文本字段时，它的类型是 VARCHAR 还是 TEXT？

如果是前者，则无法在该列中存储大于 255 个字符的字符串(由于 UTF-8 开销可能会更少)。如果是后者，您最好发布您的架构定义，以便人们可以进一步帮助您。