Victor Yegorov <vyegorov(at)gmail(dot)com> writes:> Could you kindly explain me why the query as it is updates no records?
It's a bug, that's why. Seehttp://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=324577f39bc8738ed0ec24c36c5cb2c2f81ec660or for 9.2,http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=5d545b7ed53a8b2058c1152bd1c9ae227b3280e3
regards, tom lane