http://postgresql.kr/docs/9.5/datatype.html
Data Types
| Name | Aliases | Description |
|---|---|---|
| bigint | int8 | signed eight-byte integer |
| bigserial | serial8 | autoincrementing eight-byte integer |
| bit [ (n) ] | fixed-length bit string | |
| bit varying [ (n) ] | varbit | variable-length bit string |
| boolean | bool | logical Boolean (true/false) |
| box | rectangular box on a plane | |
| bytea | binary data ("byte array") | |
| character [ (n) ] | char [ (n) ] | fixed-length character string |
| character varying [ (n) ] | varchar [ (n) ] | variable-length character string |
| cidr | IPv4 or IPv6 network address | |
| circle | circle on a plane | |
| date | calendar date (year, month, day) | |
| double precision | float8 | double precision floating-point number (8 bytes) |
| inet | IPv4 or IPv6 host address | |
| integer | int, int4 | signed four-byte integer |
| interval [ fields ] [ (p) ] | time span | |
| json | textual JSON data | |
| jsonb | binary JSON data, decomposed | |
| line | infinite line on a plane | |
| lseg | line segment on a plane | |
| macaddr | MAC (Media Access Control) address | |
| money | currency amount | |
| numeric [ (p, s) ] | decimal [ (p, s) ] | exact numeric of selectable precision |
| path | geometric path on a plane | |
| pg_lsn | PostgreSQL Log Sequence Number | |
| point | geometric point on a plane | |
| polygon | closed geometric path on a plane | |
| real | float4 | single precision floating-point number (4 bytes) |
| smallint | int2 | signed two-byte integer |
| smallserial | serial2 | autoincrementing two-byte integer |
| serial | serial4 | autoincrementing four-byte integer |
| text | variable-length character string | |
| time [ (p) ] [ without time zone ] | time of day (no time zone) | |
| time [ (p) ] with time zone | timetz | time of day, including time zone |
| timestamp [ (p) ] [ without time zone ] | date and time (no time zone) | |
| timestamp [ (p) ] with time zone | timestamptz | date and time, including time zone |
| tsquery | text search query | |
| tsvector | text search document | |
| txid_snapshot | user-level transaction ID snapshot | |
| uuid | universally unique identifier | |
| xml | XML data |
