The abbrev-BR set of abbreviations is a complement for ISO 3166-2:BR, a proposal for city name abbreviations.
The proposed set of abbreviations, at judisdiction_abbrev, is provided as CSV file, with contextualization, metadata and qualifiers. The tipical data processing and validation occure in a SQL database.
Column abbvrev and other adopted conventions:
| CSV column | SQL type | Semantic and description |
|---|---|---|
country_num |
integer NN PK1 | ISO 3166-1 numeric, three-digit country code defined by the International Organization for Standardization (ISO). |
subdivision_code |
text NN PK2 | ISO 3166-2:BR, the entry for Brazil in ISO 3166-2, part of the ISO 3166 standard, which defines codes for the names of the principal subdivisions of a country. |
local_num |
integer NN PK3 | Local (sovereign) city (or second level subdivisions) identifier, in this case the standard IBGE numeric code. |
abbrev |
text | Abbreviation of the name associated to local_num. |
name |
text NN | Name in the country's official language, name associated to local_num. |
lexlabel |
text NN | name with reduced syntax, using local rules of the Lex URN. |
abbrev_source |
integer | ID of the "Abbreviation sources" section below. |
kx_abbrev_score |
integer | Cache for 0-9 elected score, filtered by str_abbrev_minscore() function. Good= 7 to 9; Regular= 4 to 6, Weak= 0 to 3. |
kx_abbrev_rule |
text | Cache for detected "abbreviation process rule". |
The SQL type column describes the PostgreSQL datatype and NN for "Not Null", PK1 for "Primary Key, first key", PK2 for "Primary Key, second key", etc. Raw CSV example:
country_num,subdivision_code,local_num,abbrev,name,lexlabel,abbrev_source,kx_abbrev_score,kx_abbrev_rule
76,AC,1200013,ACL,Acrelândia,acrelandia,1,8,r03-var
76,AC,1200054,ABL,Assis Brasil,assis.brasil,3,5,r03
Note: official local_num and name cames from ibge.gov.br/explica/codigos-dos-municipios.
Conventions for column abbrev_source.
- OSM.codes process (default).
- DER-SP and other.
- Anatel, códigos de 3 letras para todos os ~5500 municípios.
- abreviações de municípios no RegistroBR
- CDHU-SP cdhu.sp.gov.br/nomenclatura-municipios.pdf
- Good algorithm suggestion in a 2018 discussion.
- ISO 3166-3, please check at standards and show here.
- IATA, please check at standards and show here.