Victor Yegorov <vyegorov@gmail.com> writes: > Could you kindly explain me why the query as it is updates no records? It's a bug, that's why. See http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=324577f39bc8738ed0ec24c36c5cb2c2f81ec660 or for 9.2, http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=5d545b7ed53a8b2058c1152bd1c9ae227b3280e3 regards, tom lane
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