Supported types
CockroachDB supports the following data types.
| Type | Description | Example |
|---|
| A 1-dimensional, 1-indexed, homogeneous array of any non-array data type. | {"sky","road","car"} |
| A string of binary digits (bits). | B'10010101' |
| A Boolean value. | true |
| A string of binary characters. | b'\141\061\142\062\143\063' |
| The COLLATE feature lets you sort values according to language- and country-specific rules, known as collations. | 'a1b2c3' COLLATE en |
| A date. | DATE '2016-01-25' |
| An exact, fixed-point number. | 1.2345 |
| A user-defined data type comprised of a set of static values. | ENUM ('club, 'diamond', 'heart', 'spade') |
| A 64-bit, inexact, floating-point number. | 1.2345 |
| An IPv4 or IPv6 address. | 192.168.0.1 |
| A signed integer, up to 64 bits. | 12345 |
| A span of time. | INTERVAL '2h30m30s' |
| The undefined value. | NULL |
| JSON (JavaScript Object Notation) data. | '{"first\_name": "Lola", "last\_name": "Dog", "location": "NYC", "online" : true, "friends" : 547}' |
| An unsigned 32-bit integer. | 4294967295 |
| A pseudo-type that combines an with a . | 148591304110702593 |
| A string of Unicode characters. | 'a1b2c3' |
| TIME stores a time of day in UTC. TIMETZ converts TIME values with a specified time zone offset from UTC. | TIME '01:23:45.123456' TIMETZ '01:23:45.123456-5:00' |
| TIMESTAMP stores a date and time pairing in UTC. TIMESTAMPTZ converts TIMESTAMP values with a specified time zone offset from UTC. | TIMESTAMP '2016-01-25 10:10:10' TIMESTAMPTZ '2016-01-25 10:10:10-05:00' |
| A list of lexemes and operators used in . | 'list' & 'lexem' & 'oper' & 'use' & 'full' & 'text' & 'search' |
| A list of lexemes with optional integer positions and weights used in . | 'full':13 'integ':7 'lexem':4 'list':2 'option':6 'posit':8 'search':15 'text':14 'use':11 'weight':10 |
| A 128-bit hexadecimal value. | 7f9c24e8-3b12-4fef-91e0-56a2d5a246ec |
Data type conversions and casts
CockroachDB supports explicit type conversions using the following methods:
<type 'string literal', to convert from the literal representation of a value to a value of that type. For example: DATE '2008-12-21', INT '123', or BOOL 'true'.<value::<data type, or its equivalent longer form CAST(<value AS <data type>), which converts an arbitrary expression of one built-in type to another (this is also known as type coercion or “casting”). For example: NOW()::DECIMAL, VARIANCE(a+2)::INT.
To create constant values, consider using a instead of a cast, as it provides more predictable results.
- Other when the type is not a SQL type, for example
from_ip(), to_ip() to convert IP addresses between STRING and BYTES values.
CockroachDB also supports implicit casting from string literals to arrays of all data types except the following:
For an example, see .
You can find each data type’s supported conversion and casting on its respective page in its section Supported casting & conversion.
See also
