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FIRST_ELEMENT

Gets the first element in the array

Syntax

FIRST_ELEMENT(input)

Arguments

Name
Type
Description
Default Value
input
any

Examples

input
Output
null::string
null
array['a', 'b', 'c']
a

Transformation job example

SQL

CREATE JOB function_operator_example
ADD_MISSING_COLUMNS = true
AS INSERT INTO default_glue_catalog.upsolver_samples.orders_transformed_data MAP_COLUMNS_BY_NAME
SELECT input,
FIRST_ELEMENT(input) AS Output
FROM default_glue_catalog.upsolver_samples.orders_raw_data
LET input = null::string
WHERE time_filter()
LIMIT 1;

Query result

input
Output
null::string
null