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Re: Is _ a supported way to create a column of array type? - Mailing list pgsql-general

From Joe Conway
Subject Re: Is _ a supported way to create a column of array type?
Date
Msg-id e52f6e8c-4a4e-00f9-9ee7-ea89bef474fc@joeconway.com
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In response to Re: Is _ a supported way to create a column of array type?  (Piotr Findeisen <piotr.findeisen@starburstdata.com>)
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On 4/26/19 6:50 AM, Piotr Findeisen wrote:
> Presto type system however distinguishes array(integer),
> array(array(integer))...
> (using Presto therms). And execution is (expectedly) not as flexible.

Fine point here -- Postgres does not actually have arrays-of-arrays, it
has multi-dimension arrays.

So in other words, you cannot have an array of element type _int4, but
rather you literally have an array of element type int4 with two
dimension, etc..

Joe
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