Monks,

I'm selecting the contents of a table from a remote DB, tidying up the values, and inserting the results into a local table.
According to a mysqldump (data only) it should be 350MB of data.
However, when I try to load the remote data into an AoA, it hits the 4GB limit and crashes with 'Out of memory!'.
Why??
Core code

# Collect values while( @db_row = $sth->fetchrow_array()) { $data_rec = [$db_row[0], $db_row[1], $db_row[2], $db_row[3], $db_row[4], $db_row[5], $db_row[6], $db_row[7], $db_row[8] ]; # Add to list push(@my_arr, $data_rec); } Table def (sanitised): A int(4) unsigned B bigint(20) unsigned C char(2) D int(10) unsigned E int(10) unsigned F char(4) G tinyint(2) unsigned H int(10) unsigned I tinyint(2) Num rows: 7022790
Any ideas?

Cheers
Chris


In reply to Out of Memory selecting from MySQL by chrism01

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.