As of postgresql 9.1 defaulted to
standard_conforming_strings = on
These warnings are turned to the errors, so they cannot be ignored any more:
2011-09-09 14:41:06 MSD ERROR: invalid escape string
2011-09-09 14:41:06 MSD HINT: Escape string must be empty or one character.
2011-09-09 14:41:06 MSD STATEMENT: SELECT COUNT(a0.id) FROM country a0
WHERE a0."name" LIKE '%%' ESCAPE '\\'
--
Dmitry
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