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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/count.po
Translation file Not available
Last change None
Last author None

String statistics

Strings percent Hosted strings Words percent Hosted words Characters percent Hosted characters
Total 13 179 1,272
Translated 100% 13 100% 179 100% 1,272
Needs editing 0% 0 0% 0 0% 0
Read-only 100% 13 100% 179 100% 1,272
Failing checks 7% 1 64% 115 62% 789
Strings with suggestions 0% 0 0% 0 0% 0
Untranslated strings 0% 0 0% 0 0% 0
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179
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Trends of last 30 days

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User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

-- 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 }

-- Count the number of tuples that match the full key value
count = box.space.bands.index.year:count(1965)
--[[
---
- 3
...
--]]

-- Count the number of tuples that match the partial key value
count_partial = box.space.bands.index.year_band:count(1965)
--[[
---
- 3
...
--]]
a year ago
User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

Below are few examples of using ``count``. 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
User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

**Example:**
a year ago
User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

number
a year ago
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New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

rtype
a year ago
User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

the number of matching tuples.
a year ago
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New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

return
a year ago
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New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

comparison method
a year ago
User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

values to be matched against the index key
a year ago
User avatar None

New source string

testing_project / Documentation: reference/reference_lua/box_index/count — English

an :ref:`object reference <app_server-object_reference>`.
a year ago
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