ARRAY_JOIN

Concatenates the elements of the given array using the specified delimiter.

Syntax

ARRAY_JOIN(X, DELIMITER)

Arguments

X

Type: array

An array of any value type.

DELIMITER

Type: string

The delimiter used to join the values within the array.

Returns

Type: string

The values of the array X joined with DELIMITER.

Examples

X	DELIMITER	Output
[a, b, c]	,	a,b,c
[5.5]	,	5.5
[hello, NULL, world]		hello world
[brave, NULL, world]	new	brave new world
[3,6,1,2]	,	3,6,1,2
[5.5]	NULL	NULL

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 
        ARRAY_JOIN(ARRAY['hello', null::string ,'world'], ' ') AS join_example
    FROM default_glue_catalog.upsolver_samples.orders_raw_data 
    WHERE time_filter()
    GROUP BY shippinginfo_address_state
    LIMIT 1;

Query result

join_example
hello world