Postgres level up

PostgreSQL
Level UP
Fábio Telles Rodriguez

Fábio Telles Rodriguez
• Consultor pela Timbira
• DBA Oracle e PostgreSQL + 15 anos
• Colaborador da Comunidade Brasileira de PostgreSQL
• Blog: savepoint.blog.br
• telles@timbira.com.br
• @telles

Infância
• Ingres (1977 - 1985)
• Berkeley
• Linguagem QUEL
• Postgres (1986 - 1994)
• Berkely
• Ilustra -> Informix -> DB2
• Postgres95 (1995)
• PostgreSQL 6.x (1996 - 1999)
• PGDG
• Linguagem SQL
• Estabilização do código

Projetado para ser flexível
• Funções
• Operadores
• Funções de agregação
• Herança de tabelas
• Sobrecarga de operadores
• Tipos de dados definidos pelo usuário
• Infraestrutura para indexar operadores e tipos de dados novos

Licença permissiva
“Permission to use, copy, modify, and distribute this software and its
documentation for any purpose, without fee, and without a written
agreement is hereby granted, provided that the above copyright notice
and this paragraph and the following two paragraphs appear in all
copies.”
• https://opensource.org/licenses/postgresql
• Licença estilo BSD e MIT
• De acordo com a Open Source Iniciative
• Não possui o conceito de “Copyleft”, ou seja, você pode fazer
um fork e fechar o código!

Forks
https://wiki.postgresql.org/wiki/PostgreSQL_derived_databases
• AgensGraph (orientado a grafos)
• Aurora (AWS)
• BDR (replicação multimaster)
• CitusDB (BI)
• EnterpriseDB (compatibilidade com Oracle)
• HadoopDB (cluster shared nothing)
• PipelineDB (streaming)
• PostgresX2 (cluster)
• Pivotal (BI)
• Redshift (BI)
• ToroDB (document model)

Desenvolvimento aberto
• Código aberto
• Roadmap aberto
• Listas de discussão abertas
• Qualquer pessoa pode desenvolver novas funcionalidades
• 4 commit fasts / release
• Ciclos de ~1 ano entre cada release
• O PostgreSQL não tem dono!!!

Linguagens procedurais
https://wiki.postgresql.org/wiki/PL_Matrix
• Core:
• SQL, PL/pgSQL,
• PL/Perl, PL/Python, PL/TCL
• Confiáveis:
• PL/sh, PL/R, PL/Java, PL/Lua, PL/v8(javascript),
• Teste bem antes de colocar em produção:
• PL/PSM, PL/PHP, PL/LoL, PL/Ruby

Extensões
● Contrib: https://www.postgresql.org/docs/current/contrib.html
○ adminpack, amcheck, auth_delay, auto_explain, bloom, btree_gin,
btree_gist, citext, cube, dblink, dict_int, dict_xsyn, esarthdistance,
file_fdw, fuzzystrmath, hstore, intagg, intarray, isn, lo, ltree,
passwordcheck, pg_buffercache, pgcrypto, pg_freespacemap,
pg_prewarm, pgrowlocks, pg_stat_statements, pgstattuple, pg_trm,
pg_visibility, postgres_fdw, seg, sepgsql, spi, sslinfo, tablefunc, tcn,
test_decoding, tsm_system_rows, tsm_system_time, unaccent, uuid-
ossp, xml2;
● Software Catalogue: https://www.postgresql.org/download/products/6-
postgresql-extensions/
○ HypoPG, OpenFTS, pg_qualstats, pg_stat_kcache,
pg_track_settings, PipelineDB, PL/Proxy, PostGIS, PostPic, prefix,
Texcaller, TimeTravel
● Outros (tente no pgxn.org, github ou no Google)

Foreign Data Wrapper
https://wiki.postgresql.org/wiki/Foreign_data_wrappers
● Postgres, Oracle, MySQL, SQLite, Informix, Sybase, etc
● ODBC, JDBC, Multicorn
● Cassandra, CouchDB, InfluxDB, MongoDB, Neo4J, Redis,
Riak, etc
● CSV, JSON, XML, compressed files,
● Git, imap, ICAL, RSS, www, etc,
● Mailchimp, facebook, Telegram, Twitter, S3, etc
● Elastic Search, Google BigQuery, Hadoop, HDFS, Hive
● cstore, PGStrom (GPU), faker_fdw, black_hole, etc
● Multicorn ( https://multicorn.org )

PostgreSQL 7.0 (mai/2000)
• CREATE AGGREGATE -- define a new aggregate function
• CREATE CONSTRAINT TRIGGER -- define a new constraint trigger
• CREATE LANGUAGE -- define a new procedural language
• CREATE OPERATOR -- define a new operator
• CREATE RULE -- define a new rewrite rule
• CREATE TYPE -- define a new data type
• CREATE VIEW -- define a new view
• LISTEN / NOTIFY / UNLISTEN
• SET / SET TRANSACTION / SET CONSTRAINTS
• LOAD

PostgreSQL 7.0 (mai/2000)
• Numeric Types
• Monetary Type
• Character Types
• Date/Time Types
• Boolean Type
• Geometric Types
• Network Address Data Types
• Bit String Types

PostgreSQL 7.1 (abr/2001)
• Binary Strings

PostgreSQL 7.2 (fev/2002)
• Object Identifier Types
• Pseudo-Types
• Arrays

PostgreSQL 7.3 (nov/2002)
• CREATE CAST -- define a user-defined cast
• CREATE CONVERSION -- define a user-defined encoding
conversion
• CREATE DOMAIN -- define a new domain
• CREATE OPERATOR CLASS -- define a new operator class for
indexes
• CREATE SCHEMA -- define a new schema

PostgreSQL 7.3 (nov/2002)
• Object Identifier Types
• Pseudo-Types
• Arrays

PostgreSQL 8.0 (jan/2005)
• CREATE TABLESPACE -- define a new tablespace
• SAVEPOINT / RELEASE SAVEPOINT / ROLLBACK TO
SAVEPOINT
• Composite Types

PostgreSQL 8.2 (dez/2006)
• XML Document Support

PostgreSQL 8.3 (fev/2008)
• Enumerated Types
• Text Search Types
• UUID Type
• XML Type

PostgreSQL 8.4 (jul/2009)
• CREATE FOREIGN DATA WRAPPER -- define a new foreign-data wrapper
• CREATE SERVER -- define a new foreign server
• CREATE USER MAPPING -- define a new mapping of a user to a foreign
server
• CREATE TEXT SEARCH CONFIGURATION -- define a new text search
configuration
• CREATE TEXT SEARCH DICTIONARY -- define a new text search dictionary
• CREATE TEXT SEARCH PARSER -- define a new text search parser
• CREATE TEXT SEARCH TEMPLATE -- define a new text search template
• CREATE OPERATOR FAMILY -- define a new operator family

PostgreSQL 9.1 (set/2011)
• CREATE COLLATION -- define a new collation
• CREATE EXTENSION -- install an extension
• CREATE FOREIGN TABLE -- define a new foreign table
• SECURITY LABEL -- define or change a security label applied to
an object

• JSON Type
• Range Types

• CREATE EVENT TRIGGER -- define a new event trigger
• CREATE MATERIALIZED VIEW -- define a new materialized view

PostgreSQL 9.4 (dez/2014)
• pg_lsn Type
• jsonb

• CREATE ACCESS METHOD -- define a new access method

PostgreSQL 10 (out/2017)
• CREATE PUBLICATION — define a new publication
• CREATE SUBSCRIPTION — define a new subscription
• CREATE STATISTICS — define extended statistics

PostgreSQL 11 (out/2018)
• CALL — invoke a procedure
• CREATE PROCEDURE — define a new procedure
• Domain types

Futuro
● Novos forks e novos merges;
● Novas extensões e FDWs
● Storage Engines plugáveis;
● Hooks

PGConf.Brasil 2019
● 1, 2 e 3 de agosto
● Hotel Century Flat
● Inscrições abertas
● Chamada de trabalhos
aberta até 28/02
● www.pgconf.com.br

• Development Information
• Feature Matrix
• Software Catalogue
• PGXN
• PG-Strom
• DB-Engines RDBMS Ranking
• DBMS Comparison
• Contribuições da Timbira no PostgreSQL
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