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[Mahara Bot <1308792@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://reviews.mahara.org/3269
Committed: http://gitorious.org/mahara/mahara/commit/02a60fb4cbb01c9c8dc6670bb54780226726e768
Submitter: Son Nguyen (son.nguyen@xxxxxxxxxxxxxxx)
Branch:    master

commit 02a60fb4cbb01c9c8dc6670bb54780226726e768
Author: Robert Lyon <robertl@xxxxxxxxxxxxxxx>
Date:   Tue Apr 22 12:07:36 2014 +1200

Problem with oversized sql IN() clause (Bug #1308792)

Currently institution data daily cronjob fails if the number of items
wanted to be prepared for the IN() clause exceeds 46,000. This causes
adodb to hit memory limit and fail out.

Have taken the three sql commands from various places that make up the
call and made them nested to avoid overly long prepared statement.

Change-Id: I5e38c01194f7b2c3f3899c1573a69411ac273c18
Signed-off-by: Robert Lyon <robertl@xxxxxxxxxxxxxxx>

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https://bugs.launchpad.net/bugs/1308792

Title:
  institution data daily cron failing

Status in Mahara ePortfolio:
  In Progress

Bug description:
  It looks like the cron_institution_data_daily may be failing to create
  the pie graph due to the sql IN statement needing to deal with a too
  large sql statement. On mahara.org it tries to create a  sql statement
  with an IN clause containing 46000+ ids.

  There should be a better way of handling this rather than doing such a
  great big sql statement.

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