Lists the most commonly used tags with empty/missing/short tag wikis (wiki or excerpt). Can also identify tag wikis that are over a specified length. Enter -1 for all parameters to match all tags. Tags that have been synonymized are excluded.
Q&A for people interested in the history and origins of science and mathematics
-- Wiki excerpts have to have between 20 and 460 characters.
-- Full tag wikis have to have at least 30 characters.
-- MaxBodyLength: Body shorter than "Set to 0 or -1 to disable"
declare @max_body_len int = ##MaxBodyLength:int?0##
-- MaxExcerptLength: or excerpt shorter than "Set to 0 or -1 to disable"
declare @max_excerpt_len int = ##MaxExcerptLength:int?1##
-- MinBodyLength: or body longer than "Set to -1 to disable"
declare @min_body_len int = ##MinBodyLength:int?12000##
-- MinExcerptLength: or excerpt longer than "Set to -1 to disable"
declare @min_excerpt_len int = ##MinExcerptLength:int?-1##
-- PlotMinimum: Plot: Start at
declare @plot_min int = ##PlotMinimum:int?1##
-- Bin: Plot: Bin size
declare @bin int = ##Bin:Int?1##
-- BinCount: Plot: Number of bins "Maximum 999"
declare @bin_count int = ##BinCount:int?20##
coalesce(len(pe.Body),0) as [Excerpt length],
coalesce(len(pw.Body),0) as [Wiki length],
-- Synonym target and ApprovalDate only exist for tag synonyms.
tssrc.TargetTagName as [Synonym target],
tssrc.ApprovalDate, ese.Id as [Suggested Edit 1], wse.Id as [Suggested Edit Link]
from Tags t
left join Posts pe on pe.Id = t.ExcerptPostId
left join Posts pw on pw.Id = t.WikiPostId
left join TagSynonyms tssrc on tssrc.SourceTagName = t.TagName
left join Tags tgt on tssrc.TargetTagName = tgt.TagName
left join SuggestedEdits ese on pe.Id = ese.PostId and len(pe.Body) = 0
left join SuggestedEdits wse on pw.Id = wse.PostId and len(pw.Body) = 0
where -- match everything but synonyms if all parameters are disabled
((@max_body_len <= 0 and @max_excerpt_len <= 0
and @min_body_len = -1 and @min_excerpt_len = -1)
or coalesce(len(pe.Body),0) < @max_excerpt_len -- short excerpt
or coalesce(len(pw.Body),0) < @max_body_len -- short wiki
or len(pe.Body) > nullif(@min_excerpt_len,-1) -- long excerpt
or len(pw.Body) > nullif(@min_body_len,-1)) -- long wiki
and (tssrc.SourceTagName is null -- exclude tags that are synonyms
or tssrc.ApprovalDate is null -- unless it was never approved
or tgt.TagName is null) -- or the synonym target is gone
-- Make a list of integers
-- Based on http://stackoverflow.com/questions/2157282/generate-days-from-date-range/2157776#2157776
(select @plot_min + (a.a + (10 * b.a) + (100 * c.a)) * @bin as num
from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a
cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as b
cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as c
where a.num <= (select max(Count)
where Count < (@plot_min + @bin*@bin_count))
order by -- show tags that have a wiki but no excerpt first
case when [Wiki length] > 0 and [Excerpt length] = 0 then 0 else 1 end,
[Excerpt length] asc,
[Wiki length] asc,
select num as [Number of questions],
count(Count) as [Number of tags with this many questions]
right join #Integers on Count between num and (num+@bin-1)
group by num
order by num