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| author | David Rowley <drowley@postgresql.org> | 2023-10-05 21:03:10 +1300 |
|---|---|---|
| committer | David Rowley <drowley@postgresql.org> | 2023-10-05 21:03:10 +1300 |
| commit | a8a968a8212ee3ef7f22795c834b33d871fac262 (patch) | |
| tree | f5e16eb7247a6472cb7e81a7ec9ff7507fc29e1f /src/backend/utils/adt/jsonfuncs.c | |
| parent | 0b053e78b5990cd01e7169ee5bd2bb8e4045deea (diff) | |
| download | postgresql-a8a968a8212ee3ef7f22795c834b33d871fac262.tar.gz postgresql-a8a968a8212ee3ef7f22795c834b33d871fac262.zip | |
Consider cheap startup paths in add_paths_to_append_rel
6b94e7a6d did this for ordered append paths to allow fast startup
MergeAppends, however, nothing was done for the Append case.
Here we adjust add_paths_to_append_rel() to have it build an AppendPath
containing the cheapest startup paths from each of the child relations
when the append rel has "consider_startup" set.
Author: Andy Fan, David Rowley
Discussion: https://www.postgresql.org/message-id/CAKU4AWrXSkUV=Pt-gRxQT7EbfUeNssprGyNsB=5mJibFZ6S3ww@mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/jsonfuncs.c')
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