2015-01-16 17:57 GMT+01:00 Jim Nasby <jim.na...@bluetreble.com>: > On 1/16/15 3:39 AM, Pavel Stehule wrote: > >> I am proposing a simple function, that returns a position of element in >> array. >> > > Yes please! > > FUNCTION array_position(anyarray, anyelement) RETURNS int >> > > That won't work on a multi-dimensional array. Ideally it needs to accept a > slice or an element and return the specifier for the slice. >
theoretically you can use this function for md arrays too. This function returns offset, and you can calculate a Nd possition so maybe better name -- array_offset or some similar Regards Pavel > > This wouldn't be so bad if we had an easier way to extract subsets of an > array, but even that is really ugly because whatever you extract keeps the > original number of dimensions. > > Implementation is simple (plpgsql code) >> > > This would actually be written in C though, yes? Otherwise it's not really > any better than just doing an extension... > -- > Jim Nasby, Data Architect, Blue Treble Consulting > Data in Trouble? Get it in Treble! http://BlueTreble.com >
