Add new wrapper value for removing duplicates from constant array values #3560
+345
−1
Conversation
This file contains hidden or 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
hazefully
force-pushed
the
prepare-for-fixing-in-duplicates
branch
from
395099c to
55f5868
Compare
hazefully
changed the title
hazefully
force-pushed
the
prepare-for-fixing-in-duplicates
branch
from
55f5868 to
7aabcbc
Compare
This adds a new value, ConstantArrayDistinctValue, which can be used to wrap an underlying constant array value to remove duplicates from the underlying array during evaluation. The purpose of this new value is to use it to wrap in-lists used in InJoin, InUnion and FlatMap plans to avoid duplicate records if the in-list contains duplicate values.
hazefully
force-pushed
the
prepare-for-fixing-in-duplicates
branch
from
7aabcbc to
781971a
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Outdated suggestions cannot be applied.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.
This PR prepares for fixing the issue in #3559 adds a new
Valueto Cascades,ConstantArrayDistinctValue, which can be used to wrap an underlying constant array value to remove duplicates from the underlying array during evaluation. The purpose of this new value is to use it to wrap in-lists used in InJoin, InUnion and FlatMap plans to avoid duplicate records if the in-list contains duplicate values.A new function
constant_array_distinctis added to the SQL layer that allows users to make use of the same functionality in their queries.