And maybe not on the wall, but instead in your SQLz, eating your data. But a bit more seriously. Ever since PostgreSQL 8.4 we have window functions, but still I see people which do not know it or are wary to ...

On 1st of Februyary, Takahiro Itagaki committed a patch by Pavel Stehule which adds string_agg aggregate: Log Message: ----------- Add string_agg aggregate functions. The one argument version concatenates the input values into a string. The two argument version also does the same thing, but inserts ...