I was getting a weird error in the BE:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/typo3/typo3_src-4.0.2/t3lib/class.t3lib_db.php on line 789
Instead of reading source and fighting with debug() function that I never use, I looked into TER to find:
extension key: debug_mysql_db
typo3.org/extensions/repository/view/debug_mysql_db/0.1.101/
With that extension installed , my problem was found in about 4 seconds!
Thanks goes to Stefan Geith for this little treasure.
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