4539: Don't optimize reindexing when fields contain dots r=Kerollmops a=dureuill

# Pull Request

## Related issue
Fixes https://github.com/meilisearch/meilisearch/issues/4525

## What does this PR do?
- Don't try to optimize the amount of reindexing operation when nested fields are used anywhere in:
    - the field distribution (e.g. a key actually contains a `.`)
    - the old faceted fields
    - the new faceted fields

This is because the facet distribution is not reporting on existing nested fields.



Co-authored-by: Louis Dureuil <louis@meilisearch.com>
This commit is contained in:
meili-bors[bot] 2024-03-27 16:07:49 +00:00 committed by GitHub
commit 94b7afcc55
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@ -1032,13 +1032,14 @@ impl<'a, 't, 'i> Settings<'a, 't, 'i> {
{
self.index.set_updated_at(self.wtxn, &OffsetDateTime::now_utc())?;
// Note: this MUST be before `update_sortable` so that we can get the old value to compare with the updated value afterwards
let existing_fields: HashSet<_> = self
.index
.field_distribution(self.wtxn)?
.into_iter()
.filter_map(|(field, count)| (count != 0).then_some(field))
.collect();
let old_faceted_fields = self.index.user_defined_faceted_fields(self.wtxn)?;
let old_fields_ids_map = self.index.fields_ids_map(self.wtxn)?;
@ -1055,13 +1056,7 @@ impl<'a, 't, 'i> Settings<'a, 't, 'i> {
self.update_sort_facet_values_by()?;
self.update_pagination_max_total_hits()?;
// If there is new faceted fields we indicate that we must reindex as we must
// index new fields as facets. It means that the distinct attribute,
// an Asc/Desc criterion or a filtered attribute as be added or removed.
let new_faceted_fields = self.index.user_defined_faceted_fields(self.wtxn)?;
let faceted_updated =
(&existing_fields - &old_faceted_fields) != (&existing_fields - &new_faceted_fields);
let faceted_updated = self.update_faceted(existing_fields, old_faceted_fields)?;
let stop_words_updated = self.update_stop_words()?;
let non_separator_tokens_updated = self.update_non_separator_tokens()?;
let separator_tokens_updated = self.update_separator_tokens()?;
@ -1094,6 +1089,34 @@ impl<'a, 't, 'i> Settings<'a, 't, 'i> {
Ok(())
}
fn update_faceted(
&self,
existing_fields: HashSet<String>,
old_faceted_fields: HashSet<String>,
) -> Result<bool> {
if existing_fields.iter().any(|field| field.contains('.')) {
return Ok(true);
}
if old_faceted_fields.iter().any(|field| field.contains('.')) {
return Ok(true);
}
// If there is new faceted fields we indicate that we must reindex as we must
// index new fields as facets. It means that the distinct attribute,
// an Asc/Desc criterion or a filtered attribute as be added or removed.
let new_faceted_fields = self.index.user_defined_faceted_fields(self.wtxn)?;
if new_faceted_fields.iter().any(|field| field.contains('.')) {
return Ok(true);
}
let faceted_updated =
(&existing_fields - &old_faceted_fields) != (&existing_fields - &new_faceted_fields);
Ok(faceted_updated)
}
}
fn validate_prompt(