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Argument

Description

Data type

Lookup name mandatory

Choose the lookup you want to use to enrich your table.

string

Lookup field mandatory

Choose the lookup field you want to use to enrich your table.

string

Key mandatory

Choose the table field you want to use to find matches with the lookup key field.

same as lookup key field

Time mandatory

Choose the table timestamp you want to use to correlate with the lookup timestamp. It identifies the value with the latest timestamp in the lookup before the timestamp in your table.

timestamp

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  • select hlut("Lookup_name", "Lookup_field", Key_field) as new_field

  • select hlut("Lookup_name", "Lookup_field", Key_field, Timestamp_field) as new_field

Info

Syntax considerations

  • Status
    title"lookup_name"
    → This must be the name of lookup that contains the data you want to use to enrich your data.

  • Status
    colourPurple
    title"lookup_field"
    → This must be the lookup field you want to use to enrich your data, which must not be the same as the lookup key field.

  • Status
    colourBlue
    titlekey_field
    → This must be the table field that will be used to find matches with the lookup key. The name can be different than the lookup key field as long as the data type coincide and the values it contains are potential matches (username-user). The absence of matches will return null and a different data type will return an error when running the query.

  • Status
    colourGreen
    titletimestamp_field
    → This must be the table timestamp that will be used to correlate with the lookup timestamp. A data type other than timestamp will return an error when running the query.

Example

After performing the operations you need to manipulate your data, such as filtering and grouping operations, you can use the Lookup (hlut) operation to enrich your data with the following time range lookup:

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