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How to get posts with postmeta in PHP?
I could grab all post data in one query, then grab all relevant postmeta in another, and combine the meta with the post data in one resultset in PHP. Would that end up being quicker than an single ever-more-complex SQL query, if that’s even possible? I always think, “Give as much work as possible to the database.” Not sure on this one!
What is the structure of the post meta table?
Structure of wp_postmeta Table Post meta table has four fields with the below structure. Meta ID, post ID, meta key and meta values are the four fields available in the table. You have to focus on the meta_key to find which plugin creates the entries in table.
Is there a way to cleanup the postmeta table?
There are also database optimization plugins like WP Optimize and WP Rocket allows you to cleanup the database. However, none of these plugins will delete the unused entries from wp_postmeta table. Many plugins and themes will not delete the database entries even after you remove them from your site.
How to create large post meta table in WordPress?
For example, the popular WooCommerce plugin will add hundreds of thousands of entries in post meta table for billing data, country and customer details. You can always host your store in a subdomain or subdirectory on different database to prevent the impact on your main blog.
How to query WP postmeta in MySQL?
JOIN wp_postmeta AS m ON p.id = m.post_id WHERE m.meta_key = ‘…’ The composite PRIMARY KEY goes straight to the desired row, no digression through secondary index, nor search through multiple rows.
Is the post meta table the wrong place?
If you are looking for DB performance “out of the box”, then the post meta table is the wrong place to store things that you will want to search for. The way you describe your query it will be much better to use a taxonomy for that usage case.
Which is the composite primary key in MySQL?
The composite PRIMARY KEY goes straight to the desired row, no digression through secondary index, nor search through multiple rows. INDEX (meta_key) may or may not be useful, depending on what other queries you have. InnoDB is required for the ‘clustering’. Going forward, use utf8mb4, not utf8.
How to get the post META array in WordPress?
If the value of the $key parameter is falsy get_post_meta will return the entire post meta array, even if $single is set to true. for example: get_post_meta( $post_id, FALSE, TRUE); //Returns all the post meta fields as an array.
Where can I find the get posts function in WordPress?
You can easily grab the posts using WordPress’s built-in function called get_posts You can find more details about get_posts here https://developer.wordpress.org/reference/functions/get_posts/ Thanks for contributing an answer to WordPress Development Stack Exchange!
Is the GET POST meta function case sensitive?
Please note that if a db collation is case insensitive (has with suffix _ci) then update_post_meta and delete_post_meta and get_posts () will update/delete/query the meta records with keys that are upper or lower case. However get_post_meta will apparently be case sensitive due to WordPress caching.