sql - Are there any free/open source databases which can properly store arrays? -

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i looking free/open source database can store (multi-dimensional) arrays.

once array stored in database, items in array should searchable within database. means, don't want serialize it.

it should able run under linux (suse), , want use python , php.

in standard sql, can do

create table myarray (     rowindex integer,     colindex integer,     value    /* whatever type array elements have */,     unique (rowindex, colindex) );

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