Use indexed query in blogs_table_exists().#80
Open
boonebgorges wants to merge 1 commit into
Open
Conversation
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
In #77, static caching was added for the
wp_blogsexistence query. Thanks very much for that change - it's a problem we had to hotfix around in the past.The current PR suggests a further streamlining.
SHOW TABLES LIKE 'wp_blogs'is slow because it results in an unindexed query againstINFORMATION_SCHEMA. If we add aTABLE_SCHEMAclause, we can leverage the indexes, and the query is dramatically faster. (Alternatively, you could useDESCRIBE wp_blogs, which looks only at tablespace.)