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_facet_array no longer confused by duplicate array items, closes #448

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Simon Willison 2021-11-15 17:19:33 -08:00
commit 55024b5301
2 changed files with 77 additions and 4 deletions
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23
datasette/facets.py
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@ -354,11 +354,26 @@ class ArrayFacet(Facet):
config = source_and_config["config"]
source = source_and_config["source"]
column = config.get("column") or config["simple"]
# https://github.com/simonw/datasette/issues/448
facet_sql = """
select j.value as value, count(*) as count from (
{sql}
) join json_each({col}) j
group by j.value order by count desc, value limit {limit}
with inner as ({sql}),
deduped_array_items as (
select
distinct j.value,
inner.*
from
json_each([inner].{col}) j
join inner
)
select
value as value,
count(*) as count
from
deduped_array_items
group by
value
order by
count(*) desc limit {limit}
""".format(
col=escape_sqlite(column), sql=self.sql, limit=facet_size + 1
)