Hi Luca, testing this using docker images. I can replicate it with 10.9-alpine
bash-5.0# psql -h127.0.0.1 -Upostgres test psql (10.9) Type "help" for help. test=# \d users Table "public.users" Column | Type | Collation | Nullable | Default --------+------------------------+-----------+----------+----------------------------------- id | integer | | not null | nextval('users_id_seq'::regclass) name | character varying(255) | | | age | integer | | | email | character varying(255) | | | Indexes: "users_pkey" PRIMARY KEY, btree (id) "users_email_idx" btree (email) "users_name_idx" btree (name) test=# alter table users alter column name type text, alter column email type text; ERROR: relation "users_name_idx" already exists test=# select version(); version --------------------------------------------------------------------------------------- PostgreSQL 10.9 on x86_64-pc-linux-musl, compiled by gcc (Alpine 8.3.0) 8.3.0, 64-bit (1 row) and 11.4 psql (11.4) Type "help" for help. test=# \d users Table "public.users" Column | Type | Collation | Nullable | Default --------+------------------------+-----------+----------+----------------------------------- id | integer | | not null | nextval('users_id_seq'::regclass) name | character varying(255) | | | age | integer | | | email | character varying(255) | | | Indexes: "users_pkey" PRIMARY KEY, btree (id) "users_email_idx" btree (email) "users_name_idx" btree (name) test=# alter table users alter column name type text, alter column email type text; ERROR: relation "users_name_idx" already exists test=# select version(); version --------------------------------------------------------------------------------------- PostgreSQL 11.4 on x86_64-pc-linux-musl, compiled by gcc (Alpine 8.3.0) 8.3.0, 64-bit (1 row) Not sure what's going on at my end ... On Fri, 2 Aug 2019 at 17:44, Luca Ferrari <fluca1...@gmail.com> wrote: > On Fri, Aug 2, 2019 at 9:39 AM Bharanee Rathna <deepfr...@gmail.com> > wrote: > > > > Hi Luca, > > > > I've tried it with a different client and Postgres 10.9, no luck > > > > psql (10.3, server 10.9) > > I've fired up a 12beta2 and it works, either with psql 12 or psql 11.4 on > linux. > What if you run the statements within another client (pgadmin, a java > client or something else)? > > % psql -U postgres testdb > psql (12beta2) > Type "help" for help. > > testdb=# create table users(id serial primary key, name varchar(255), > age int, email varchar(255)); > CREATE TABLE > testdb=# create index users_email_idx on users(email); > CREATE INDEX > testdb=# alter table users alter column name type text, alter column > email type text; > ALTER TABLE > testdb=# SELECT version(); > version > > ---------------------------------------------------------------------------------------------------------- > PostgreSQL 12beta2 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu > 8.3.0-6ubuntu1~18.10.1) 8.3.0, 64-bit > (1 row) > > > > > % ~/git/misc/PostgreSQL/pgenv/pgsql-11.4/bin/psql -U postgres testdb > > psql (11.4, server 12beta2) > WARNING: psql major version 11, server major version 12. > Some psql features might not work. > Type "help" for help. > > testdb=# drop table users; > DROP TABLE > testdb=# create table users(id serial primary key, name varchar(255), > age int, email varchar(255)); > CREATE TABLE > testdb=# create index users_email_idx on users(email); > CREATE INDEX > testdb=# alter table users alter column name type text, alter column > email type text; > ALTER TABLE >