Question

I’m trying to insert items into my postgres table via PHP

But get the following error message ERROR: duplicate key violates unique constraint "search6_idx1"

search6_idx1 is the index table for search6. I tried the following select setval('search6',45) and somehow that only works for sequences.

Answer 1

When you define an index you can optionally make it UNIQUE. Such indexes serve a double purpose:

• Speed up queries
• Prevent duplicates

In your case, it seems that the problem is one of these:

• You are inserting values that already exist
• Your index is UNIQUE by mistake

The respective solutions would be:

• Don’t insert dupes
• Make a non-unique index