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| author | Thomas Munro <tmunro@postgresql.org> | 2019-11-07 16:51:04 +1300 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2019-11-07 17:00:48 +1300 |
| commit | 7815e7efdb4ce9575b5d8460beb0dd2569d7ca3a (patch) | |
| tree | dc3d1795259ab8c2dafc371cbd89725b43abc2da /src/backend/utils/adt/tsvector.c | |
| parent | 3feb6ace7cfe8edbf6db702de06dc9295f307a8e (diff) | |
| download | postgresql-7815e7efdb4ce9575b5d8460beb0dd2569d7ca3a.tar.gz postgresql-7815e7efdb4ce9575b5d8460beb0dd2569d7ca3a.zip | |
Add reusable routine for making arrays unique.
Introduce qunique() and qunique_arg(), which can be used after qsort()
and qsort_arg() respectively to remove duplicate values. Use it where
appropriate.
Author: Thomas Munro
Reviewed-by: Tom Lane (in an earlier version)
Discussion: https://postgr.es/m/CAEepm%3D2vmFTNpAmwbGGD2WaryM6T3hSDVKQPfUwjdD_5XY6vAA%40mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/tsvector.c')
| -rw-r--r-- | src/backend/utils/adt/tsvector.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/utils/adt/tsvector.c b/src/backend/utils/adt/tsvector.c index ccfc4147fab..098eaed3e5e 100644 --- a/src/backend/utils/adt/tsvector.c +++ b/src/backend/utils/adt/tsvector.c @@ -41,8 +41,9 @@ compareWordEntryPos(const void *a, const void *b) } /* - * Removes duplicate pos entries. If there's two entries with same pos - * but different weight, the higher weight is retained. + * Removes duplicate pos entries. If there's two entries with same pos but + * different weight, the higher weight is retained, so we can't use + * qunique here. * * Returns new length. */ |