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Diffstat (limited to 'doc/development/database/strings_and_the_text_data_type.md')
| -rw-r--r-- | doc/development/database/strings_and_the_text_data_type.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/development/database/strings_and_the_text_data_type.md b/doc/development/database/strings_and_the_text_data_type.md index 33a0fd2ebb7..f338520c6ca 100644 --- a/doc/development/database/strings_and_the_text_data_type.md +++ b/doc/development/database/strings_and_the_text_data_type.md @@ -34,6 +34,12 @@ but only for updating the declaration of the columns. We can then validate it at `VALIDATE CONSTRAINT`, which requires only a `SHARE UPDATE EXCLUSIVE LOCK` (only conflicts with other validations and index creation while it allows reads and writes). +### Exceptions + +Text columns used by `attr_encrypted` are not required to have a limit, because the length of the +text after encryption may be longer than the text itself. Instead, you can use an Active Record +length validation on the attribute. + ## Create a new table with text columns When adding a new table, the limits for all text columns should be added in the same migration as |