Add project all columns (π *) to relational and multiset algebra #203
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rlaiola
changed the title
|
PR #215 must be merged before. |
rlaiola
force-pushed
the
piasterisk
branch
2 times, most recently
from
027eba9
to
dd88d46
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Reference issue
None.
What does this implement/fix?
This PR aims at providing a more flexible way to write queries based on the SQL standard and RDBMS implementations such as MySQL, PostgreSQL and MS SQL Server. In summary, it is possible to project all columns using the asterisk (
*).Note: To run the tests refer to http://dbis-uibk.github.io/relax/calc/local/uibk/local/0
Test 1: project all columns
or
How to test this PR?
Test it live at https://rlaiola.github.io/relax/calc/local/uibk/local/0. For automated tests visit https://rlaiola.github.io/relax/test.html
References