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English 0 0 0 0 3 0 0
Russian 28% 18 810 5,205 15 4 0 0
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Project website www.tarantool.io/en/doc/latest
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Source code repository git@github.com:tarantool/doc.git
Repository branch test-weblate
Weblate repository http://weblate.tarantool.io/git/testing_project/documentation-referencereference_luabox_indexbsize/
File mask locale/*/LC_MESSAGES/reference/reference_lua/box_index/select.po

String statistics

Strings percent Hosted strings Words percent Hosted words Characters percent Hosted characters
Total 50 1,752 11,420
Source 25 876 5,710
Translated 64% 32 53% 942 54% 6,215
Needs editing 6% 3 1% 21 1% 124
Read-only 50% 25 50% 876 50% 5,710
Failing checks 14% 7 26% 471 25% 2,940
Strings with suggestions 0% 0 0% 0 0% 0
Untranslated strings 30% 15 45% 789 44% 5,081
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testing_project / Documentation: reference/reference_lua/box_index/select — Russian

18 new strings to translate appeared to the translation. a year ago
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testing_project / Documentation: reference/reference_lua/box_index/select — Russian

File locale/ru/LC_MESSAGES/reference/reference_lua/box_index/select.po was added. a year ago
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testing_project / Documentation: reference/reference_lua/box_index/select — Russian

:samp:`box.space.{space-name}.index.{index-name}:select(...)[1]`. can be replaced by :samp:`box.space.{space-name}.index.{index-name}:get(...)`. That is, ``get`` can be used as a convenient shorthand to get the first tuple in the tuple set that would be returned by ``select``. However, if there is more than one tuple in the tuple set, then ``get`` throws an error.
:samp:`box.space.{имя-спейса}.index.{имя-индекса}:select(...)[1]` можно заменить :samp:`box.space.{имя-спейса}.index.{имя-индекса}:get(...)`. А именно, ``get`` можно использовать в качестве удобного сокращения для получения первого кортежа в наборе кортежей, который был бы выведен по запросу ``select``. Однако, если в наборе кортежей больше одного кортежа, ``get`` завершится с ошибкой.
a year ago
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String updated in the repository

testing_project / Documentation: reference/reference_lua/box_index/select — Russian

-- Insert test data --
box.space.bands:insert { 1, 'Roxette', 1986 }
box.space.bands:insert { 2, 'Scorpions', 1965 }
box.space.bands:insert { 3, 'Ace of Base', 1987 }
box.space.bands:insert { 4, 'The Beatles', 1960 }
box.space.bands:insert { 5, 'Pink Floyd', 1965 }
box.space.bands:insert { 6, 'The Rolling Stones', 1962 }
box.space.bands:insert { 7, 'The Doors', 1965 }
box.space.bands:insert { 8, 'Nirvana', 1987 }
box.space.bands:insert { 9, 'Led Zeppelin', 1968 }
box.space.bands:insert { 10, 'Queen', 1970 }

-- Select a tuple by the specified primary key value --
select_primary = bands.index.primary:select { 1 }
--[[
---
- - [1, 'Roxette', 1986]
...
--]]

-- Select a tuple by the specified secondary key value --
select_secondary = bands.index.band:select { 'The Doors' }
--[[
---
- - [7, 'The Doors', 1965]
...
--]]

-- Select a tuple by the specified multi-part secondary key value --
select_multipart = bands.index.year_band:select { 1960, 'The Beatles' }
--[[
---
- - [4, 'The Beatles', 1960]
...
--]]

-- Select tuples by the specified partial key value --
select_multipart_partial = bands.index.year_band:select { 1965 }
--[[
---
- - [5, 'Pink Floyd', 1965]
- [2, 'Scorpions', 1965]
- [7, 'The Doors', 1965]
...
--]]

-- Select maximum 3 tuples by the specified secondary index --
select_limit = bands.index.band:select({}, { limit = 3 })
--[[
---
- - [3, 'Ace of Base', 1987]
- [9, 'Led Zeppelin', 1968]
- [8, 'Nirvana', 1987]
...
--]]

-- Select maximum 3 tuples with the key value greater than 1965 --
select_greater = bands.index.year:select({ 1965 }, { iterator = 'GT', limit = 3 })
--[[
---
- - [9, 'Led Zeppelin', 1968]
- [10, 'Queen', 1970]
- [1, 'Roxette', 1986]
...
--]]

-- Select maximum 3 tuples after the specified tuple --
select_after_tuple = bands.index.primary:select({}, { after = { 4, 'The Beatles', 1960 }, limit = 3 })
--[[
---
- - [5, 'Pink Floyd', 1965]
- [6, 'The Rolling Stones', 1962]
- [7, 'The Doors', 1965]
...
--]]

-- Select first 3 tuples and fetch a last tuple's position --
result, position = bands.index.primary:select({}, { limit = 3, fetch_pos = true })
-- Then, pass this position as the 'after' parameter --
select_after_position = bands.index.primary:select({}, { limit = 3, after = position })
--[[
---
- - [4, 'The Beatles', 1960]
- [5, 'Pink Floyd', 1965]
- [6, 'The Rolling Stones', 1962]
...
--]]
 
a year ago
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String updated in the repository

testing_project / Documentation: reference/reference_lua/box_index/select — Russian

Below are few examples of using ``select`` with different parameters. To try out these examples, you need to bootstrap a Tarantool database as described in :ref:`Using data operations <box_space-operations-detailed-examples>`.
 
a year ago
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