JOIN_ARRAYS

Joins any number of arrays by index using a MessageFormat pattern.

Syntax

JOIN_ARRAYS(formatString, inputs1[, inputs2, ..., inputsN])

Arguments

Name	Type	Description	Default Value
formatString	string	The format string where {n} prints the n'th input. For example, the pattern '{0}.{0}.{1}' on the inputs 'a' and 'b' will result in the string 'a.a.b'	null
inputs#	any

Returns

Returns a string value.

---

Examples

formatString	inputs1	inputs2	inputs3	Output
'{0} {1} is {2} years old'	array['John', 'Jane']	array['Smith', 'Johnson']	array[35, 32]	[John Smith is 35 years old, Jane Johnson is 32 years old]
'{0}:{1}'	array['red', 'green', 'blue', 'luminosity']	array[255, 255, 0]		[red:255, green:255, blue:0, luminosity:]

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 formatString, inputs1[], inputs2[], inputs3[],
  JOIN_ARRAYS('{0} {1} is {2} years old', inputs1[], inputs2[], inputs3[]) AS Output
  FROM default_glue_catalog.upsolver_samples.orders_raw_data
    LET formatString = '{0} {1} is {2} years old',
        inputs1 = array['John', 'Jane'],
        inputs2 = array['Smith', 'Johnson'],
        inputs3 = array[35, 32]
    WHERE $commit_time BETWEEN run_start_time() AND run_end_time()
    LIMIT 1;

Query result

formatString	inputs1[]	inputs2[]	inputs3[]	Output
'{0} {1} is {2} years old'	array['John', 'Jane']	array['Smith', 'Johnson']	array[35, 32]	[John Smith is 35 years old, Jane Johnson is 32 years old]