Doiron, Daniel schrieb am 12.11.2015 um 23:21:
I’m troubleshooting a schema and found this:
Indexes:
"pk_patient_diagnoses" PRIMARY KEY, btree (id)
"index_4341548" UNIQUE, btree (id)
"idx_patient_diagnoses_deleted" btree (deleted)
"idx_patient_diagnoses_diagnosis_type_id" btree (diagnosis_type_id)
"idx_patient_diagnoses_icd10" btree (icd10)
"idx_patient_diagnoses_icd9" btree (diagnosis_code)
"idx_patient_diagnoses_is_unknown" btree (is_unknown)
"idx_patient_diagnoses_modified" btree (modified)
"idx_patient_diagnoses_patient_id" btree (patient_id)
"idx_patient_diagnoses_uuid" btree (uuid)
"index_325532921" btree (modified)
"index_4345603" btree (deleted)
"index_4349516" btree (diagnosis_type_id)
"index_4353417" btree (icd10)
"index_4384754" btree (diagnosis_code)
"index_4418849" btree (is_unknown)
"index_4424101" btree (patient_id)
"index_4428458" btree (uuid)
My questions is whether these “index_*” indexes could have been created by postgresql or whether I have an errant developer using some kinda third-party tool?
The only index that Postgres "automatically" creates is the unique index supporting a primary key or a unique constraint.
But apart from that, Postgres never creates indexes on its own.
So from the list above, only pk_patient_diagnose has (most probably) been created automatically. Everything else was created manually.
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