postgres schema not found when create with upper case - postgresql

Question

I am trying to create app using OpenJPA & Postgres 9.2.xx, Currently facing issue at DB level
1) Created schema say PCM:-
CREATE SCHEMA PCM
2) Tried create table :-
CREATE TABLE PCM.USER_PROFILE (
USER_PROFILE_ID BIGINT NOT NULL,
USER_FNAME VARCHAR(60),
USER_LNAME VARCHAR(60)
};
Got error "pcm" schema does not exists
Then tried creating table :-
CREATE TABLE "PCM.USER_PROFILE" (
USER_PROFILE_ID BIGINT NOT NULL,
USER_FNAME VARCHAR(60),
USER_LNAME VARCHAR(60)
};
Table is created successful,
If I list the schema:-
[postgres#DBMigration ~] $ psql -c "\dn"
List of schemas
Name | Owner
--------+----------
pcm | dbadmin
public | postgres
B) In persistence.xml , I have entered configuration
<property name="openjpa.jdbc.Schema" value="PCM" />
Now I am getting issue in OpenJPA stating schema is not present.
I tried refering here, but no success.
I have tried entering schema name in configuration as '\"PCM\"', "\"PCM\"", '\"pcm\"', "\"pcm\"".
Not sure where am I going wrong.
I need suggestion/help,
1) how or what is proper standard to create schema in Postgres & refer while creating table.
2) Is my entry in persistence.xml correct? Then why its not identifying the schema

Answer 1

Object names in Postgres when not quoted are implicitly converted to lower case.
When you create a table the way you did below with quotation mark on "PCM.USER_PROFILE" then the table is created in default public schema with the name of "PCM.USER_PROFILE".
CREATE TABLE "PCM.USER_PROFILE" (
USER_PROFILE_ID BIGINT NOT NULL,
USER_FNAME VARCHAR(60),
USER_LNAME VARCHAR(60)
);
However, your create statement mentioned in the post is completely valid (with the exception of changing } to ) at the end of command:
CREATE TABLE PCM.USER_PROFILE (
USER_PROFILE_ID BIGINT NOT NULL,
USER_FNAME VARCHAR(60),
USER_LNAME VARCHAR(60)
);
It creates user_profile table under pcm schema succesfully.

Answer 2

The error that I did was created schema outside database environment & root user. When we tried running select * from information_schema.schemata; under both users (root & db user) the schema was not listing.
Hence create schema under a DB by running query
psql -U [dbUser] -d [database] -c "CREATE SCHEMA pcm;"
or
psql -h localhost -U [dbUser] -d [database]
[database]#=> CREATE SCHEMA pcm;
Try running query to test if schema is loaded successfully under database & dbowner user.
[database]#=> select * from information_schema.schemata;