PostgreSQL 18.4

PostgreSQL for Mac is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness.

It runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows. PostgreSQL for macOS is the default database on Mac OS X Server as of version 10.7.

It is fully ACID compliant, has full support for foreign keys, joins, views, triggers, and stored procedures (in multiple languages). It includes most SQL:2008 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP.

It also supports storage of binary large objects, including pictures, sounds, or video. It has native programming interfaces for C/C++, Java, .Net, Perl, Python, Ruby, Tcl, ODBC, among others, and exceptional documentation (table sizes can go up to 32 TB).

Features and Highlights

Data Types

• Primitives: Integer, Numeric, String, Boolean
• Structured: Date/Time, Array, Range, UUID
• Document: JSON/JSONB, XML, Key-value (Hstore)
• Geometry: Point, Line, Circle, Polygon
• Customizations: Composite, Custom Types

Data Integrity

• UNIQUE, NOT NULL
• Primary Keys
• Foreign Keys
• Exclusion Constraints
• Explicit Locks, Advisory Locks

Concurrency, Performance

• Indexing: B-tree, Multicolumn, Expressions, Partial
• Advanced Indexing: GiST, SP-Gist, KNN Gist, GIN, BRIN, Covering indexes, Bloom filters
• Sophisticated query planner/optimizer, index-only scans, multicolumn statistics
• Transactions, Nested Transactions (via savepoints)
• Multi-Version Concurrency Control (MVCC)
• Parallelization of reading queries and building B-tree indexes
• Table partitioning
• All transaction isolation levels defined in the SQL standard, including Serializable
• Just-in-time (JIT) compilation of expressions

Reliability, Disaster Recovery

• Write-ahead Logging (WAL)
• Replication: Asynchronous, Synchronous, Logical
• Point-in-time-recovery (PITR), active standbys
• Tablespaces

Security

• Authentication: GSSAPI, SSPI, LDAP, SCRAM-SHA-256, Certificate, and more
• Robust access-control system
• Column and row-level security

Extensibility

• Stored functions and procedures
• Procedural Languages: PL/PGSQL, Perl, Python (and many more)
• Foreign data wrappers: connect to other databases or streams with a standard SQL interface
• Many extensions that provide additional functionality, including PostGIS

Internationalization, Text Search

• Support for international character sets, e.g. through ICU collations
• Full-text search

How to Use

Run the installer package and follow prompts

Use pgAdmin or Terminal to manage databases

Start the PostgreSQL server via System Preferences

Connect using psql or third-party tools

Create databases and roles as needed

Manage schema using SQL commands

Backup and restore using pg_dump and pg_restore

Secure your setup with user roles and permissions

Update PostgreSQL via Homebrew or official site

System Requirements

• macOS 10.12 or later
• 64-bit Intel or Apple Silicon processor
• Minimum 2 GB RAM
• At least 150 MB free disk space
• Administrator privileges for installation

PROS

• Powerful open-source relational database
• Full SQL compliance and advanced features
• Cross-platform and highly extensible
• Excellent performance and scalability
• Strong security and role management

CONS

• GUI tools not included by default
• Resource heavy for simple projects
• Fewer visual design tools than rivals
• Manual tuning needed for best speed

Also Available: Download PostgreSQL for Windows

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