>>>> 2012/10/08 14:52 -0700, Rick James >>>>
Do not use + for DATE arithmetic!
Use, for example
  + INTERVAL 1 YEAR
<<<<<<<<
No, those operations are well defined. Amongst the timestamp-functions there is 
constant reference to numeric context, and character context--and well there 
is, because there are no time-constants, only numerals and character strings 
taken for timestamps. It is also the only means of doing some things.


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