egutierrez
47235e702c
Funciones Go con interfaz unificada para operaciones DB: open, close, create_table, exec, query, insert_row, insert_batch. Openers específicos por engine. Tipo DBConfig para configuración común. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
38 lines
1.1 KiB
Markdown
38 lines
1.1 KiB
Markdown
---
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name: postgres_open
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kind: function
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lang: go
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domain: infra
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version: "1.0.0"
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purity: impure
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signature: "func PostgresOpen(host string, port int, user, password, dbname string, sslmode string) (*sql.DB, error)"
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description: "Conecta a PostgreSQL construyendo el DSN desde parametros individuales. sslmode por defecto 'disable' si vacio."
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tags: [database, postgres, postgresql, connection, sql]
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uses_functions: []
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uses_types: [db_config_go_infra]
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returns: []
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returns_optional: false
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error_type: "error_go_core"
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imports: ["database/sql", "github.com/jackc/pgx/v5/stdlib"]
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tested: false
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tests: []
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test_file_path: ""
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file_path: "functions/infra/postgres_open.go"
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---
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## Ejemplo
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```go
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db, err := PostgresOpen("localhost", 5432, "user", "secret", "mydb", "disable")
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if err != nil {
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log.Fatal(err)
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}
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defer DBClose(db)
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rows, err := DBQuery(db, "SELECT id, name FROM users WHERE active = $1", true)
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```
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## Notas
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Usa el driver `github.com/jackc/pgx/v5/stdlib` registrado como "pgx". Construye DSN con los parametros separados para mayor legibilidad. Para produccion usar `sslmode=require` o `sslmode=verify-full`. Hace ping al abrir para verificar conectividad.
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