tarantool

please add index by lua function

Bug #1029816 reported by UNera on 2012-07-27

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	tarantool	In Progress	Medium	Roman Tsisyk

Bug Description

Now taratnool builds index by field value.

It would be nice to have indexes by lua function.

example:

function tlen(tuple)
return #tuple
end

space[1].enabled = 1
space[1].index[0].type = "TREE"
space[1].index[0].unique = 0
space[1].index[0].index_function.name = tlen
space[1].index[0].index_function.type = NUM # return value

so tarantool should call 'tlen(tuple)' for each tuple while it is building index and while it is doing insert/update operation.

so using the index (in example) we can find largest tuples

See original description

Dmitry Simonenko (pmwkaa) on 2012-07-27

Changed in tarantool:
importance:	Undecided → Wishlist

UNera (unera) on 2012-07-27

description:	updated
description:	updated

Kostja Osipov (kostja) on 2013-05-31

Changed in tarantool:
assignee:	nobody → UNera (unera)

Revision history for this message

Roman Tsisyk (rtsisyk) wrote on 2013-06-13:

=> system-spaces-v2

Changed in tarantool:
assignee:	UNera (unera) → Roman Tsisyk (rtsisyk)
importance:	Wishlist → Medium
milestone:	none → 1.5.1
status:	New → In Progress

Kostja Osipov (kostja) on 2013-07-08

Changed in tarantool:
milestone:	1.5.1 → 1.5.3

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