[improvement] improvement for light weight schema change#10860
Merged
yiguolei merged 10 commits intoapache:masterfrom Jul 18, 2022
Merged
[improvement] improvement for light weight schema change#10860yiguolei merged 10 commits intoapache:masterfrom
yiguolei merged 10 commits intoapache:masterfrom
Conversation
Contributor
|
LGTM |
yiguolei
force-pushed
the
dynamic_schema
branch
3 times, most recently
from
6a77cdf to
7d0f17e
Compare
morningman
added
kind/improvement
area/schema-change
miswujian
pushed a commit
to miswujian/doris
that referenced
this pull request
Jul 28, 2022
* improvement for dynamic schema not use schema as lru cache key any more. load segment just use the rowset's original schema not the current read schema. generate column reader and column iterator using the original schema, using the read schema if it is a new column. using column unique id as key instead of column ordinals. Co-authored-by: yiguolei <yiguolei@gmail.com>
whutpencil
pushed a commit
to whutpencil/incubator-doris
that referenced
this pull request
Jul 29, 2022
* improvement for dynamic schema not use schema as lru cache key any more. load segment just use the rowset's original schema not the current read schema. generate column reader and column iterator using the original schema, using the read schema if it is a new column. using column unique id as key instead of column ordinals. Co-authored-by: yiguolei <yiguolei@gmail.com>
eldenmoon
pushed a commit
to eldenmoon/incubator-doris
that referenced
this pull request
Aug 1, 2022
* improvement for dynamic schema not use schema as lru cache key any more. load segment just use the rowset's original schema not the current read schema. generate column reader and column iterator using the original schema, using the read schema if it is a new column. using column unique id as key instead of column ordinals. Co-authored-by: yiguolei <yiguolei@gmail.com>
Contributor
Author
|
part of #10136 |
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 participants
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.
Proposed changes
Problem Summary:
Describe the overview of changes.
Checklist(Required)
Further comments
If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...