Given a meta query, generates SQL clauses to be appended to a main query.
update_{$meta_type}_metadata_cache
Filters whether to update the metadata cache of a specific type.
wp_metadata_lazyloader
Retrieves the queue for lazy-loading metadata.
update_meta_cache
Updates the metadata cache for the specified objects.
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deleted_{$meta_type}meta
Fires immediately after deleting post or comment metadata of a specific type.
delete_{$meta_type}meta
Fires immediately before deleting post or comment metadata of a specific type.
delete_{$meta_type}_metadata_by_mid
Filters whether to delete metadata of a specific type by meta ID.
delete_metadata_by_mid
Deletes metadata by meta ID.
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update_{$meta_type}_metadata_by_mid
Filters whether to update metadata of a specific type by meta ID.
update_metadata_by_mid
Updates metadata by meta ID.
get_metadata_by_mid
Retrieves metadata by meta ID.
get_{$meta_type}_metadata_by_mid
Filters whether to retrieve metadata of a specific type by meta ID.
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metadata_exists
Determines if a meta key is set for a given object.
get_metadata
Retrieves metadata for the specified object.
get_{$meta_type}_metadata
This filter is documented in wp-includes/meta.php
