[GENERAL] Query regarding

[M Tarkeshwar Rao]

Hi all,

We have started to convert some oracle sql scripts and converting them to 
postgres, but facing some issues to create table.

I have some common doubts in create table script ie.

ALTER TABLE employee
 DROP PRIMARY KEY CASCADE;

DROP employee CASCADE CONSTRAINTS;

CREATE TABLE employee
(
  LABEL_IMP  VARCHAR2(50 BYTE)
)
TABLESPACE DATA_TB
PCTUSED    0
PCTFREE    10
INITRANS   1
MAXTRANS   255
STORAGE    (
            INITIAL          5M
            NEXT             5M
            MINEXTENTS       1
            MAXEXTENTS       UNLIMITED
            PCTINCREASE      0
            BUFFER_POOL      DEFAULT
           )
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
MONITORING;


I am trying to find replacement for above keywords highlighted in BOLD in 
postgres, but unable to find it on google.
Could you please let us know if these parameter are managed internally in 
postgres or what are the alternative.

Regards,
Tarkeshwar