I have not been able to get the "ON CONFLICT" clause to work I am using psql 14.4 on ubuntu
Given the following table definition CREATE TABLE my_companies ( company_id SERIAL NOT NULL PRIMARY KEY, second_id INTEGER NOT NULL REFERENCES big_list(second_id), string_company_id TEXT NOT NULL, company_name TEXT NOT NULL, person_name TEXT NOT NULL ) INHERITS ( _audit_table, _delete_table ); and the following constraints CREATE UNIQUE INDEX my_companies_id_unique ON my_companies(string_company_id) WHERE delete_timestamp IS NULL; CREATE UNIQUE INDEX my_companies_company_name_unique ON my_companies(company_name) WHERE delete_timestamp IS NULL; I issued the following sql insert in an attempt to use "on conflict" to update the duplicate column name insert into my_companies (second_id,string_company_id,company_name,person_name) values (1,'66','widgets','seller-toto') on conflict (company_name) do update set company_name = concat(company_name,'++',string_company_id); In this example a record with a company name of 'widgets' already exists and will result in an constraint violation when I ran my sql statement I received the following error message bkimelman=# \i insert-companies-1c.sql psql:insert-companies-1c.sql:3: ERROR: column reference "company_name" is ambiguous LINE 3: ...company_name) do update set company_name = concat(company_na... I tried fully qualifying the column names in the concat() function call, but all that did was get me a different error message What would be the proper format for the "on conflict" clause ?