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Fixing intro to window functions SRS.

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Vitaliy Zakaznikov 2021-05-07 17:45:08 -04:00
parent 4b87ae684c
commit 1dd5e7d986
2 changed files with 19 additions and 3 deletions
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10
tests/testflows/window_functions/requirements/requirements.md
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@ -202,7 +202,13 @@ All the updates are tracked using the [Revision History].
## Introduction
This software requirements specification covers requirements for `Map(key, value)` data type in [ClickHouse].
This software requirements specification covers requirements for supporting window functions in [ClickHouse].
Similar functionality exists in [MySQL] and [PostreSQL]. [PostreSQL] defines a window function as follows:
> A window function performs a calculation across a set of table rows that are somehow related to the current row.
> This is comparable to the type of calculation that can be done with an aggregate function.
> But unlike regular aggregate functions, use of a window function does not cause rows to
> become grouped into a single output row — the rows retain their separate identities.
## Requirements
@ -2290,3 +2296,5 @@ version: 1.0
[Revision History]: https://github.com/ClickHouse/ClickHouse/commits/master/tests/testflows/window_functions/requirements/requirements.md
[Git]: https://git-scm.com/
[GitHub]: https://github.com
[PostreSQL]: https://www.postgresql.org/docs/9.2/tutorial-window.html
[MySQL]: https://dev.mysql.com/doc/refman/8.0/en/window-functions.html

12
tests/testflows/window_functions/requirements/requirements.py
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@ -1,6 +1,6 @@
# These requirements were auto generated
# from software requirements specification (SRS)
# document by TestFlows v1.6.210312.1172513.
# document by TestFlows v1.6.210505.1133630.
# Do not edit by hand but re-generate instead
# using 'tfs requirements generate' command.
from testflows.core import Specification
@ -3796,7 +3796,13 @@ All the updates are tracked using the [Revision History].
## Introduction
This software requirements specification covers requirements for `Map(key, value)` data type in [ClickHouse].
This software requirements specification covers requirements for supporting window functions in [ClickHouse].
Similar functionality exists in [MySQL] and [PostreSQL]. [PostreSQL] defines a window function as follows:
> A window function performs a calculation across a set of table rows that are somehow related to the current row.
> This is comparable to the type of calculation that can be done with an aggregate function.
> But unlike regular aggregate functions, use of a window function does not cause rows to
> become grouped into a single output row — the rows retain their separate identities.
## Requirements
@ -5884,4 +5890,6 @@ version: 1.0
[Revision History]: https://github.com/ClickHouse/ClickHouse/commits/master/tests/testflows/window_functions/requirements/requirements.md
[Git]: https://git-scm.com/
[GitHub]: https://github.com
[PostreSQL]: https://www.postgresql.org/docs/9.2/tutorial-window.html
[MySQL]: https://dev.mysql.com/doc/refman/8.0/en/window-functions.html
''')