Data Types

LSA stores data as uninterpreted string of bytes. Values can be stored as node or edge properties. The default node property to store an ingested value is https://lschema.org/nodeValue. An optional https://lschema.org/valueType term specifies the data type of the value. If a value has no value type or an unrecognized value type, it is stored and processed as a raw string. LSA recognizes the following value types and can perform conversions between compatible values:

valueType	Examples	Description
`https:/json-schema.org/boolean` `json:boolean`	true, false	JSON boolean value
`http://www.w3.org/2001/XMLSchema/boolean` `xsd:boolean` `xs:boolean`	true, 1 false, 0	XML boolean value, can be "true", "false", "0", or "1".
`http://www.w3.org/2001/XMLSchema/gDay` `xsd:gDay` `xs:gDay`	1, 02	XML Gregorian date day part
`http://www.w3.org/2001/XMLSchema/gMonth` `xsd:gMonth` `xs:gMonth`	06, 6, 11	XML Gregorian date month part
`http://www.w3.org/2001/XMLSchema/gYear` `xsd:gYear` `xs:gYear`	2001	XML Gregorian date year part.
`http://www.w3.org/2001/XMLSchema/gMonthDay` `xsd:gMonthDay` `xs:gMonthDay`	01-05, 1-5	XML Gregorian date month and day.
`http://www.w3.org/2001/XMLSchema/gYearMonth` `xsd:gYearMonth` `xs:gYearMonth`	2002-01, 2002-1	XML Gregorian date year and month.
`http://www.w3.org/2001/XMLSchema/date` `xsd:date` `xs:date`	2002-02-15 2002-02-15+0300 2002-02-15Z	XML date.
`http://www.w3.org/2001/XMLSchema/time` `xsd:time` `xs:time`	13:20:00-05:00 13:20:00	XML time.
`http://www.w3.org/2001/XMLSchema/dateTime` `xsd:dateTime` `xs:dateTime`	2002-10-10T12:00:00-05:00 2002-10-10T17:00:00Z	XML date-time.
`https:/json-schema.org/date` `json:date`	2006-01-02	RFC3339 JSON date.
`https:/json-schema.org/date-time` `json:date-time`	2006-01-02T15:04:05Z07:00	RFC3339 JSON date-time.
`https:/json-schema.org/time` `json:time`	15:04:05Z07:00	RFC3339 JSON time.
`https://unixtime.org/time` `unix:time`	1649979010	UNIX Epoch time in seconds.
`https://unixtime.org/timeNano` `unix:timeNano`	1649979038230000000	UNIX Epoch time in nanoseconds
`https://lschema.org/dateTime` `ls:dateTime`	See below	Date-time based on a pattern. The pattern is given in `https://lschema.org/goTimeFormat`, `ls:goTimeFormat`, `https://lschema.org/momentTimeFormat`, or `ls:momentTimeFormat`.
`https://lschema.org/date` `ls:date`	See below	Date based on a pattern. The pattern is given in `https://lschema.org/goTimeFormat`, `ls:goTimeFormat`, `https://lschema.org/momentTimeFormat`, or `ls:momentTimeFormat`.
`https://lschema.org/time` `ls:time`	See below	Time based on a pattern. The pattern is given in `https://lschema.org/goTimeFormat`, `ls:goTimeFormat`, `https://lschema.org/momentTimeFormat`, or `ls:momentTimeFormat`.

Pattern date-time

If none of the standard date-time patterns do not match the data at hand, it is possible to provide a pattern to process date, time, or date-time values.

To process a date value that looks like January 1 2020, use:

{
  "@id": "attr1",
  "@type": "Value",
  "valueType": "ls:date",
  "momentTimeFormat": "MMMM D YYYY"
}

The annotation ls:momentTimeFormat allows specifying format using the Go implementation of JS Moment library conventions.

The ls:goTimeFormat allows specifying date/time format using the Go standard library time format.