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create table t as select 'ag' as a, 0 as b union all select 'sb' as a, 1 as b union all select 'sf' as a, 1 as b union all select 'xk' as a, 2 as b union all select 'bd' as a, 2 as b union all select 've' as a, 2 as b union all select 'ku' as a, 2 as b union all select 'lt' as a, 3 as b union all select 'ac' as a, 4 as b
9 rows affected
with data as (select * from t /* filtered results */), bck as ( select *, dense_rank() over (order by b desc) grp from data where b < (select b from t where a = 'bd') order by b desc limit 100 ), fwd as ( select *, dense_rank() over (order by b) grp from data where b >= (select b from t where a = 'bd') order by b limit 100 ) select * from bck where grp = 1 union all select * from fwd where grp <= 2 order by b
a
b
grp
sb
1
1
sf
1
1
xk
2
1
bd
2
1
ve
2
1
ku
2
1
lt
3
2