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* BUG #18290: \di+ can not show the same name indexes
@ 2024-01-14 06:57 PG Bug reporting form <noreply@postgresql.org>
0 siblings, 2 replies; 3+ messages in thread
From: PG Bug reporting form @ 2024-01-14 06:57 UTC (permalink / raw)
To: pgsql-bugs@lists.postgresql.org; +Cc: yongtaoh2022@gmail.com
The following bug has been logged on the website:
Bug reference: 18290
Logged by: Yongtao Huang
Email address: yongtaoh2022@gmail.com
PostgreSQL version: 16.1
Operating system: centos7
Description:
``` SQL
gpadmin@gpadmin-host:~$ psql
psql (16.1)
Type "help" for help.
gpadmin=# create table t1(c1 int);
CREATE TABLE
gpadmin=# create temp table t2(c1 int);
CREATE TABLE
gpadmin=#
gpadmin=# create index idx1 on t1(c1);
CREATE INDEX
gpadmin=# create index idx1 on t2(c1);
CREATE INDEX
gpadmin=# \d+ t1
Table "public.t1"
Column | Type | Collation | Nullable | Default | Storage | Compression |
Stats target | Description
--------+---------+-----------+----------+---------+---------+-------------+--------------+-------------
c1 | integer | | | | plain | |
|
Indexes:
"idx1" btree (c1)
Access method: heap
gpadmin=# \d+ t2
Table "pg_temp_3.t2"
Column | Type | Collation | Nullable | Default | Storage | Compression |
Stats target | Description
--------+---------+-----------+----------+---------+---------+-------------+--------------+-------------
c1 | integer | | | | plain | |
|
Indexes:
"idx1" btree (c1)
Access method: heap
gpadmin=# \di+
List of relations
Schema | Name | Type | Owner | Table | Persistence | Access method |
Size | Description
-----------+------+-------+---------+-------+-------------+---------------+------------+-------------
pg_temp_3 | idx1 | index | gpadmin | t2 | temporary | btree |
8192 bytes |
(1 row)
```
Both table `t1` and temp table `t2` have index idx, but `\di` only shows the
index of table `t2`.
Related link: https://github.com/greenplum-db/gpdb/issues/15791
Bug catcher: Hao Zhang <hao-hz.zhang@broadcom.com> and Yongtao Huang
<yongtaoh2022@gmail.com>
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: BUG #18290: \di+ can not show the same name indexes
@ 2024-01-14 15:57 Tom Lane <tgl@sss.pgh.pa.us>
parent: PG Bug reporting form <noreply@postgresql.org>
1 sibling, 0 replies; 3+ messages in thread
From: Tom Lane @ 2024-01-14 15:57 UTC (permalink / raw)
To: yongtaoh2022@gmail.com; +Cc: pgsql-bugs@lists.postgresql.org
PG Bug reporting form <noreply@postgresql.org> writes:
> gpadmin=# \di+
> List of relations
> Schema | Name | Type | Owner | Table | Persistence | Access method |
> Size | Description
> -----------+------+-------+---------+-------+-------------+---------------+------------+-------------
> pg_temp_3 | idx1 | index | gpadmin | t2 | temporary | btree |
> 8192 bytes |
> (1 row)
> Both table `t1` and temp table `t2` have index idx, but `\di` only shows the
> index of table `t2`.
This is not a bug: \di is operating as documented, namely showing you
the indexes that are visible in your current search_path. The
temp index masks the similarly-named one in public. You could see
both of them with "\di+ *.*", "\di+ *.idx1", or other forms. For
more info see
https://www.postgresql.org/docs/current/app-psql.html#APP-PSQL-PATTERNS
regards, tom lane
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: BUG #18290: \di+ can not show the same name indexes
@ 2024-01-15 01:08 jian he <jian.universality@gmail.com>
parent: PG Bug reporting form <noreply@postgresql.org>
1 sibling, 0 replies; 3+ messages in thread
From: jian he @ 2024-01-15 01:08 UTC (permalink / raw)
To: yongtaoh2022@gmail.com; pgsql-bugs@lists.postgresql.org
On Sun, Jan 14, 2024 at 6:33 PM PG Bug reporting form
<noreply@postgresql.org> wrote:
>
> The following bug has been logged on the website:
>
> Bug reference: 18290
> Logged by: Yongtao Huang
> Email address: yongtaoh2022@gmail.com
> PostgreSQL version: 16.1
> Operating system: centos7
> Description:
>
>
> gpadmin=# \di+
> List of relations
> Schema | Name | Type | Owner | Table | Persistence | Access method |
> Size | Description
> -----------+------+-------+---------+-------+-------------+---------------+------------+-------------
> pg_temp_3 | idx1 | index | gpadmin | t2 | temporary | btree |
> 8192 bytes |
> (1 row)
>
> ```
> Both table `t1` and temp table `t2` have index idx, but `\di` only shows the
> index of table `t2`.
>
> Related link: https://github.com/greenplum-db/gpdb/issues/15791
>
> Bug catcher: Hao Zhang <hao-hz.zhang@broadcom.com> and Yongtao Huang
> <yongtaoh2022@gmail.com>
>
you can use
\set ECHO_HIDDEN
to figure out the magic behind \di
related post: https://stackoverflow.com/questions/11024099/postgresql-outputting-query-of-underlying-function
^ permalink raw reply [nested|flat] 3+ messages in thread
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2024-01-14 06:57 BUG #18290: \di+ can not show the same name indexes PG Bug reporting form <noreply@postgresql.org>
2024-01-14 15:57 ` Tom Lane <tgl@sss.pgh.pa.us>
2024-01-15 01:08 ` jian he <jian.universality@gmail.com>
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