Unable to use postgres exporter with azure flexible database

[nimblenitin]

What did you do? Tried deploying postgres exporter in aks What did you expect to see? metrics What did you see instead? Under which circumstances? An error has occurred while serving metrics:

7 error(s) occurred:
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"azure_maintenance" > label:<name:"server" value:"X-dev.postgres.database.azure.com:5432" > gauge:<value:X > } was collected before with the same name and label values
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"template1" > label:<name:"server" value:"X-dev.postgres.database.azure.com:5432" > gauge:<value:X+06 > } was collected before with the same name and label values
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"postgres" > label:<name:"server" value:"X-dev.postgres.database.azure.com:5432" > gauge:<value:X+07 > } was collected before with the same name and label values
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"template0" > label:<name:"server" value:"X-dev.postgres.database.azure.com:5432" > gauge:<value:X+06 > } was collected before with the same name and label values
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"azure_sys" > label:<name:"server" value:"X-dev.postgres.database.azure.com:5432" > gauge:<value:X+06 > } was collected before with the same name and label values
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"fhio-temp" > label:<name:"server" value:"X-dev.postgres.database.azure.com:5432" > gauge:<value:X+07 > } was collected before with the same name and label values
* collected metric "pg_database_size_bytes" { label:<name:"datname" value:"X-dev" > label:<name:"server" value:"fhiodatabase-dev.postgres.database.azure.com:5432" > gauge:<value:X+X> } was collected before with the same name and label values
**Environment**

• System information:

  insert output of uname -srm here

• postgres_exporter version:

  insert output of 3.3.0 here

• postgres_exporter flags:

insert list of flags used here

• PostgreSQL version:

  12.12

• Logs:

  insert logs relevant to the issue here

[sysadmind]

You don't include almost any of the necessary information here. What version of the exporter? What flags are you using? Are you using a custom query file (queries.yaml)?