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Re: Performant queries on table with many boolean columns - Mailing list pgsql-performance

From bricklen
Subject Re: Performant queries on table with many boolean columns
Date
Msg-id CAGrpgQ836rDb1ic4Ftcd04oCqX=yETdTaMiQvYqOdON9a=BomA@mail.gmail.com
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In response to Re: Performant queries on table with many boolean columns  (bricklen <bricklen@gmail.com>)
Responses Re: Performant queries on table with many boolean columns
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Query plan for the md5() index test:

 Index Scan using lots_of_columns_md5_idx on lots_of_columns  (cost=0.93..3.94 rows=1 width=208) (actual time=0.043..0.043 rows=1 loops=1)
   Index Cond: ('1ba23a0668ec17e230d98c270d6664dc'::text = md5(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((c1)::text || (c2)::text) || (c3)::text) || (c4)::text) || (c5)::text) || (c6)::text) || (c7)::text) || (c8)::text) || (c9)::text) || (c10)::text) || (c11)::text) || (c12)::text) || (c13)::text) || (c14)::text) || (c15)::text) || (c16)::text) || (c17)::text) || (c18)::text) || (c19)::text) || (c20)::text) || (c21)::text) || (c22)::text) || (c23)::text) || (c24)::text) || (c25)::text) || (c26)::text) || (c27)::text) || (c28)::text) || (c29)::text) || (c30)::text) || (c31)::text) || (c32)::text) || (c33)::text) || (c34)::text) || (c35)::text) || (c36)::text) || (c37)::text) || (c38)::text) || (c39)::text) || (c40)::text) || (c41)::text) || (c42)::text) || (c43)::text) || (c44)::text) || (c45)::text) || (c46)::text) || (c47)::text) || (c48)::text) || (c49)::text) || (c50)::text) || (c51)::text) || (c52)::text) || (c53)::text) || (c54)::text) || (c55)::text) || (c56)::text) || (c57)::text) || (c58)::text) || (c59)::text) || (c60)::text) || (c61)::text) || (c62)::text) || (c63)::text) || (c64)::text) || (c65)::text) || (c66)::text) || (c67)::text) || (c68)::text) || (c69)::text) || (c70)::text) || (c71)::text) || (c72)::text) || (c73)::text) || (c74)::text) || (c75)::text) || (c76)::text) || (c77)::text) || (c78)::text) || (c79)::text) || (c80)::text) || (c81)::text) || (c82)::text) || (c83)::text) || (c84)::text) || (c85)::text) || (c86)::text) || (c87)::text) || (c88)::text) || (c89)::text) || (c90)::text) || (c91)::text) || (c92)::text) || (c93)::text) || (c94)::text) || (c95)::text) || (c96)::text) || (c97)::text) || (c98)::text) || (c99)::text) || (c100)::text)))
   Buffers: shared hit=4
 Planning time: 0.389 ms
 Execution time: 0.129 ms
(5 rows)

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