Hardcode query to remove transients as per issue #26 #58
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
When deleting transients, either with `wp transient delete --all` or by doing a database import with AI1WM, the rewriter fails on a SQL query which uses MySQL's multiple-table delete syntax. The incoming query looks like ```sql DELETE a, b FROM wp_options a, wp_options b WHERE a.option_name LIKE '_transient_%' AND a.option_name NOT LIKE '_transient_timeout_%' AND b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) ) AND b.option_value < 1677325977 ``` SQLite does not support this syntax, and it doesn't support CONCAT either. So, detect this specific query (and another one very like it with _site_transient_%) and rewrite it wholesale to an equivalent query in SQLite syntax. There's also a check for option_value being less than a timestamp, which is not hardcoded, so we extract that timestamp from the incoming query and use it in the rewritten one.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
When deleting transients, either with
wp transient delete --allor by doing a database import with AI1WM, the rewriter fails on a SQL query which uses MySQL's multiple-table delete syntax. The incoming query looks likeSQLite does not support this syntax, and it doesn't support CONCAT either. So, detect this specific query (and another one very like it with
_site_transient_%) and rewrite it wholesale to an equivalent query in SQLite syntax. There's also a check for option_value being less than a timestamp, which is not hardcoded, so we extract that timestamp from the incoming query and use it in the rewritten one.