This data as json, CSV (advanced)
| Link | pk1 | pk2 | pk3 | content |
|---|---|---|---|---|
| a,a,k | a | a | k | a-a-k |
| a,b,k | a | b | k | a-b-k |
| a,c,k | a | c | k | a-c-k |
| a,d,k | a | d | k | a-d-k |
| a,e,k | a | e | k | a-e-k |
| a,f,k | a | f | k | a-f-k |
| a,g,k | a | g | k | a-g-k |
| a,h,k | a | h | k | a-h-k |
| a,i,k | a | i | k | a-i-k |
| a,j,k | a | j | k | a-j-k |
| a,k,k | a | k | k | a-k-k |
| a,l,k | a | l | k | a-l-k |
| a,m,k | a | m | k | a-m-k |
| a,n,k | a | n | k | a-n-k |
| a,o,k | a | o | k | a-o-k |
| a,p,k | a | p | k | a-p-k |
| a,q,k | a | q | k | a-q-k |
| a,r,k | a | r | k | a-r-k |
| a,s,k | a | s | k | a-s-k |
| a,t,k | a | t | k | a-t-k |
| a,u,k | a | u | k | a-u-k |
| a,v,k | a | v | k | a-v-k |
| a,w,k | a | w | k | a-w-k |
| a,x,k | a | x | k | a-x-k |
| a,y,k | a | y | k | a-y-k |
| a,z,k | a | z | k | a-z-k |
| b,a,k | b | a | k | b-a-k |
| b,b,k | b | b | k | b-b-k |
| b,c,k | b | c | k | b-c-k |
| b,d,k | b | d | k | b-d-k |
| b,e,k | b | e | k | b-e-k |
| b,f,k | b | f | k | b-f-k |
| b,g,k | b | g | k | b-g-k |
| b,h,k | b | h | k | b-h-k |
| b,i,k | b | i | k | b-i-k |
| b,j,k | b | j | k | b-j-k |
| b,k,k | b | k | k | b-k-k |
| b,l,k | b | l | k | b-l-k |
| b,m,k | b | m | k | b-m-k |
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);