Postgre SQL PostgreSQL

postgres=#
postgres=# --Displays all data types in the connected database, with comments.
postgres=# \dT+
                                                           List of data types
   Schema   |            Name             |  Internal name   | Size |                            Description
------------+-----------------------------+------------------+------+-------------------------------------------------------------------
 pg_catalog | "any"                       | any              | 4    |
 pg_catalog | "char"                      | char             | 1    | single character
 pg_catalog | "trigger"                   | trigger          | 4    |
 pg_catalog | "unknown"                   | unknown          | var  |
 pg_catalog | abstime                     | abstime          | 4    | absolute, limited-range date and time (Unix system time)
 pg_catalog | aclitem                     | aclitem          | 12   | access control list
 pg_catalog | anyarray                    | anyarray         | var  |
 pg_catalog | anyelement                  | anyelement       | 4    |
 pg_catalog | bigint                      | int8             | 8    | ~18 digit integer, 8-byte storage
 pg_catalog | bit                         | bit              | var  | fixed-length bit string
 pg_catalog | bit varying                 | varbit           | var  | variable-length bit string
 pg_catalog | boolean                     | bool             | 1    | boolean, 'true'/'false'
 pg_catalog | box                         | box              | 32   | geometric box '(lower left,upper right)'
 pg_catalog | bytea                       | bytea            | var  | variable-length string, binary values escaped
 pg_catalog | character                   | bpchar           | var  | char(length), blank-padded string, fixed storage length
 pg_catalog | character varying           | varchar          | var  | varchar(length), non-blank-padded string, variable storage length
 pg_catalog | cid                         | cid              | 4    | command identifier type, sequence in transaction id
 pg_catalog | cidr                        | cidr             | var  | network IP address/netmask, network address
 pg_catalog | circle                      | circle           | 24   | geometric circle '(center,radius)'
 pg_catalog | cstring                     | cstring          | var  |
 pg_catalog | date                        | date             | 4    | ANSI SQL date
 pg_catalog | double precision            | float8           | 8    | double-precision floating point number, 8-byte storage
 pg_catalog | inet                        | inet             | var  | IP address/netmask, host address, netmask optional
 pg_catalog | int2vector                  | int2vector       | var  | array of int2, used in system tables
 pg_catalog | integer                     | int4             | 4    | -2 billion to 2 billion integer, 4-byte storage
 pg_catalog | internal                    | internal         | 4    |
 pg_catalog | interval                    | interval         | 16   | @  , time interval
 pg_catalog | language_handler            | language_handler | 4    |
 pg_catalog | line                        | line             | 32   | geometric line (not implemented)'
 pg_catalog | lseg                        | lseg             | 32   | geometric line segment '(pt1,pt2)'
 pg_catalog | macaddr                     | macaddr          | 6    | XX:XX:XX:XX:XX:XX, MAC address
 pg_catalog | money                       | money            | 4    | monetary amounts, $d,ddd.cc
 pg_catalog | name                        | name             | 64   | 63-character type for storing system identifiers
 pg_catalog | numeric                     | numeric          | var  | numeric(precision, decimal), arbitrary precision number
 pg_catalog | oid                         | oid              | 4    | object identifier(oid), maximum 4 billion
 pg_catalog | oidvector                   | oidvector        | var  | array of oids, used in system tables
 pg_catalog | opaque                      | opaque           | 4    |
 pg_catalog | path                        | path             | var  | geometric path '(pt1,...)'
 pg_catalog | point                       | point            | 16   | geometric point '(x, y)'
 pg_catalog | polygon                     | polygon          | var  | geometric polygon '(pt1,...)'
 pg_catalog | real                        | float4           | 4    | single-precision floating point number, 4-byte storage
 pg_catalog | record                      | record           | var  |
 pg_catalog | refcursor                   | refcursor        | var  | reference cursor (portal name)
 pg_catalog | regclass                    | regclass         | 4    | registered class
 pg_catalog | regoper                     | regoper          | 4    | registered operator
 pg_catalog | regoperator                 | regoperator      | 4    | registered operator (with args)
 pg_catalog | regproc                     | regproc          | 4    | registered procedure
 pg_catalog | regprocedure                | regprocedure     | 4    | registered procedure (with args)
 pg_catalog | regtype                     | regtype          | 4    | registered type
 pg_catalog | reltime                     | reltime          | 4    | relative, limited-range time interval (Unix delta time)
 pg_catalog | smallint                    | int2             | 2    | -32 thousand to 32 thousand, 2-byte storage
 pg_catalog | smgr                        | smgr             | 2    | storage manager
 pg_catalog | text                        | text             | var  | variable-length string, no limit specified
 pg_catalog | tid                         | tid              | 6    | (Block, offset), physical location of tuple
-- More  --