This data as json, CSV (advanced)
| Link | pk1 | pk2 | pk3 | content |
|---|---|---|---|---|
| a,a,m | a | a | m | a-a-m |
| a,b,m | a | b | m | a-b-m |
| a,c,m | a | c | m | a-c-m |
| a,d,m | a | d | m | a-d-m |
| a,e,m | a | e | m | a-e-m |
| a,f,m | a | f | m | a-f-m |
| a,g,m | a | g | m | a-g-m |
| a,h,m | a | h | m | a-h-m |
| a,i,m | a | i | m | a-i-m |
| a,j,m | a | j | m | a-j-m |
| a,k,m | a | k | m | a-k-m |
| a,l,m | a | l | m | a-l-m |
| a,m,m | a | m | m | a-m-m |
| a,n,m | a | n | m | a-n-m |
| a,o,m | a | o | m | a-o-m |
| a,p,m | a | p | m | a-p-m |
| a,q,m | a | q | m | a-q-m |
| a,r,m | a | r | m | a-r-m |
| a,s,m | a | s | m | a-s-m |
| a,t,m | a | t | m | a-t-m |
| a,u,m | a | u | m | a-u-m |
| a,v,m | a | v | m | a-v-m |
| a,w,m | a | w | m | a-w-m |
| a,x,m | a | x | m | a-x-m |
| a,y,m | a | y | m | a-y-m |
| a,z,m | a | z | m | a-z-m |
| b,a,m | b | a | m | b-a-m |
| b,b,m | b | b | m | b-b-m |
| b,c,m | b | c | m | b-c-m |
| b,d,m | b | d | m | b-d-m |
| b,e,m | b | e | m | b-e-m |
| b,f,m | b | f | m | b-f-m |
| b,g,m | b | g | m | b-g-m |
| b,h,m | b | h | m | b-h-m |
| b,i,m | b | i | m | b-i-m |
| b,j,m | b | j | m | b-j-m |
| b,k,m | b | k | m | b-k-m |
| b,l,m | b | l | m | b-l-m |
| b,m,m | b | m | m | b-m-m |
JSON shape: default, array, newline-delimited, object
CREATE TABLE compound_three_primary_keys ( pk1 varchar(30), pk2 varchar(30), pk3 varchar(30), content text, PRIMARY KEY (pk1, pk2, pk3) ); CREATE INDEX idx_compound_three_primary_keys_content ON compound_three_primary_keys(content);