The following table lists the data types you can use with PartiQL for DynamoDB.
| DynamoDB data type | PartiQL representation | Notes |
|---|---|---|
Boolean |
TRUE | FALSE | Not case sensitive. |
Binary |
N/A | Only supported via code. |
List |
[ value1, value2,...] | There are no restrictions on the data types that can be stored in a List type, and the elements in a List do not have to be of the same type. |
Map |
{ 'name' : value } | There are no restrictions on the data types that can be stored in a Map type, and the elements in a Map do not have to be of the same type. |
Null |
NULL | Not case sensitive. |
Number |
1, 1.0, 1e0 | Numbers can be positive, negative, or zero. Numbers can have up to 38 digits of precision. |
Number Set |
<<number1, number2>> | The elements in a number set must be of type Number. |
String Set |
<<'string1', 'string2'>> | The elements in a string set must be of type String. |
String |
'string value' | Single quotes must be used to specify String values. |
Examples
The following statement demonstrates how to insert the following data types:
String, Number, Map, List,
Number Set and String Set.
INSERT INTO TypesTable value {'primarykey':'1',
'NumberType':1,
'MapType' : {'entryname1': 'value', 'entryname2': 4},
'ListType': [1,'stringval'],
'NumberSetType':<<1,34,32,4.5>>,
'StringSetType':<<'stringval','stringval2'>>
}The following statement demonstrates how to insert new elements into the
Map, List, Number Set and String
Set types and change the value of a Number type.
UPDATE TypesTable
SET NumberType=NumberType + 100
SET MapType.NewMapEntry=[2020, 'stringvalue', 2.4]
SET ListType = LIST_APPEND(ListType, [4, <<'string1', 'string2'>>])
SET NumberSetType= SET_ADD(NumberSetType, <<345, 48.4>>)
SET StringSetType = SET_ADD(StringSetType, <<'stringsetvalue1', 'stringsetvalue2'>>)
WHERE primarykey='1'The following statement demonstrates how to remove elements from the
Map, List, Number Set and String
Set types and change the value of a Number type.
UPDATE TypesTable
SET NumberType=NumberType - 1
REMOVE ListType[1]
REMOVE MapType.NewMapEntry
SET NumberSetType = SET_DELETE( NumberSetType, <<345>>)
SET StringSetType = SET_DELETE( StringSetType, <<'stringsetvalue1'>>)
WHERE primarykey='1'For more information, see DynamoDB data types.
