What is indexing?
Indexing is the process of saving facet values into a custom database table.
This table (
facetwp_index) was designed to store data very efficiently, and is one of the reasons why FacetWP is so fast.
Whenever facets are added or edited, we ask that you press the Re-index button. This allows FacetWP to capture any structural changes to your data.
Re-indexing is only needed when facets change, or when content is imported programmatically. Individual items (posts, pages, etc) are automatically re-indexed whenever they’re saved.