#19441: No Postgres _like index when unique=True
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Reporter: dylan@… | Owner: nobody
Type: Bug | Status: new
Component: Database layer (models, ORM) | Version: 1.5-beta-1
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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class Species(models.Model):
scientific_name = models.CharField(max_length=200, db_index=True)
Genererates 2 indexes
BEGIN;
CREATE INDEX "species_species_scientific_name" ON "species_species"
("scientific_name");
CREATE INDEX "species_species_scientific_name_like" ON "species_species"
("scientific_name" varchar_pattern_ops);
COMMIT;
class Species(models.Model):
scientific_name = models.CharField(max_length=200, unique=True,
db_index=True)
Does not create any indexes, because it depends on UNIQUE, but it SHOULD
generate the index
CREATE INDEX "species_species_scientific_name_like" ON "species_species"
("scientific_name" varchar_pattern_ops);
to make sure Postgres is optimized for LIKE operator.
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Ticket URL: <https://code.djangoproject.com/ticket/19441>
Django <https://code.djangoproject.com/>
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