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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2014-03-05 16:00:22 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2014-03-05 16:00:33 -0500 |
| commit | 8cf0ad1ea38db3e16ac04b408168df4c937862e6 (patch) | |
| tree | 7e56b2b9c715228ec4303f657d0d7bc6f4b08a5d /src | |
| parent | 406a1a9ef0beb0a7e3f58805ab2d3140e2202deb (diff) | |
| download | postgresql-8cf0ad1ea38db3e16ac04b408168df4c937862e6.tar.gz postgresql-8cf0ad1ea38db3e16ac04b408168df4c937862e6.zip | |
Add comment that ec_relids excludes "child" EquivalenceClass members.
This was already documented a few lines further down, but the comment
just beside the field declaration could be misleading. Per gripe
from Kyotaro Horiguchi.
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/nodes/relation.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index 8aa40d0ef01..c607b36e3a7 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -585,7 +585,8 @@ typedef struct EquivalenceClass List *ec_members; /* list of EquivalenceMembers */ List *ec_sources; /* list of generating RestrictInfos */ List *ec_derives; /* list of derived RestrictInfos */ - Relids ec_relids; /* all relids appearing in ec_members */ + Relids ec_relids; /* all relids appearing in ec_members, except + * for child members (see below) */ bool ec_has_const; /* any pseudoconstants in ec_members? */ bool ec_has_volatile; /* the (sole) member is a volatile expr */ bool ec_below_outer_join; /* equivalence applies below an OJ */ |