Timeline for Unique constraint to enforce max one null per item
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 27, 2014 at 18:38 | comment | added | Erwin Brandstetter | The exclude constraint requires that you install the extension btree_gist for the included integer. Details: dba.stackexchange.com/questions/37351/… | |
| Aug 27, 2014 at 7:25 | vote | accept | vektor | ||
| Aug 27, 2014 at 7:04 | history | edited | user1822 | CC BY-SA 3.0 | added 795 characters in body |
| Aug 27, 2014 at 6:59 | history | answered | user1822 | CC BY-SA 3.0 |