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Asked: 2026-05-30T15:10:57+00:00

Is there any alternative to the PostgreSQL array_agg() function so that it doesn’t return

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Is there any alternative to the PostgreSQL array_agg() function so that it doesn’t return values in the format: ‘{x,y,z,}’.
Can I have it return just: ‘x,y,z’ ?

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1 Answer

  1. Editorial Team

    In PostgreSQL 9.0 or later use string_agg(val, ',').
    It returns a string with delimiters of your choosing.

    array_agg(val) returns an array, no surprise there. The curly braces you see are integral part of array literals – the text representation of arrays.

    In older versions (or any version really) you can substitute with array_to_string(array_agg(val), ',').

    Or, quick’n’dirty: trim(array_agg(val)::text, '{}' – if values never start or end with curly braces.

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