Comparison

EDB Postgres vs Google Cloud Spanner

On the evidence we track, Google Cloud Spanner leads this comparison with a composite score of 55/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

EDB Postgres full profile →Google Cloud Spanner full profile →

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EDB Postgres36

★Google Cloud Spanner55

Attribute comparison across 2 tools
Attribute	EDB Postgres	Google Cloud SpannerLeader
vioscaleAI score	36 / 100medium · 72%	55 / 100low · 38%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	open_source	commercial
Price levelpricing.price_level	free	low
Integrations
Countintegrations.count	10	4
Security
Disclosure policysecurity.disclosure_policy	✓	-
Gdprsecurity.gdpr	✓	-
Scorecardsecurity.scorecard	2.5	-
Soc2security.soc2	✓	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=edb-deployment&per_page=100 · Last 12m: 0	-
Reliability
Sla pctreliability.sla_pct	99.999	99.999
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	1	-
Github starsadoption.github_stars	67	-
Activity
Commits last 30dactivity.commits_last_30d	0	-
Release
Cadence daysrelease.cadence_days	20	-
Historyrelease.history	20 items	-
Language
Primarylanguage.primary	Python	-
Content
Faqcontent.faq	5 items	4 items

Score

vioscaleAI score

EDB Postgres36 / 100medium · 72%

Google Cloud Spanner55 / 100low · 38%

Pricing

Free tier

EDB Postgres✓

Google Cloud Spanner✓

Model

EDB Postgresopen_source

Google Cloud Spannercommercial

Price level

EDB Postgresfree

Google Cloud Spannerlow

Integrations

Count

EDB Postgres10

Google Cloud Spanner4

Security

Disclosure policy

EDB Postgres✓

Google Cloud Spanner–

Gdpr

EDB Postgres✓

Google Cloud Spanner–

Scorecard

EDB Postgres2.5

Google Cloud Spanner–

Soc2

EDB Postgres✓

Google Cloud Spanner–

Vulnerabilities

EDB PostgresCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=edb-deployment&per_page=100 · Last 12m: 0

Google Cloud Spanner–

Reliability

Sla pct

EDB Postgres99.999

Google Cloud Spanner99.999

Status page

EDB Postgres✓

Google Cloud Spanner✓

Adoption

Dependent repos

EDB Postgres1

Google Cloud Spanner–

Github stars

EDB Postgres67

Google Cloud Spanner–

Activity

Commits last 30d

EDB Postgres0

Google Cloud Spanner–

Release

Cadence days

EDB Postgres20

Google Cloud Spanner–

History

EDB Postgres20 items

Google Cloud Spanner–

Language

Primary

EDB PostgresPython

Google Cloud Spanner–

Content

Faq

EDB Postgres5 items

Google Cloud Spanner4 items

Capabilities

Feature-by-feature on the axes that matter for relational databases. “-” means undocumented, not absent.

Capability comparison for Relational Databases
Capability	EDB Postgres	Google Cloud Spanner
Core
SQL model	Full SQL	Full SQL
Transactions
ACID transactions	Full	Full
Highest isolation level	Serializable	Serializable
Consistency
Consistency	Strong	Strong
Scale
Horizontal scale	Natively distributed	Natively distributed
Replication
Replication	Async	Consensus (Raft/Paxos)
Availability
Automatic failover / HA	✓	✓
Deployment
Deployment	Self-hosted	Managed
Serverless / scale-to-zero	✗	-
Compatibility
Wire compatibility	Postgres protocol	Postgres protocol
Extensibility
Extensions / plugins / UDFs	✓	✓
Licensing
Licence class	Permissive OSS	Proprietary
Data types
JSON / document support	✓	-
Geo / spatial	-	-

Core

SQL model

EDB PostgresFull SQL

Google Cloud SpannerFull SQL

Transactions

ACID transactions

EDB PostgresFull

Google Cloud SpannerFull

Highest isolation level

EDB PostgresSerializable

Google Cloud SpannerSerializable

Consistency

EDB PostgresStrong

Google Cloud SpannerStrong

Scale

Horizontal scale

EDB PostgresNatively distributed

Google Cloud SpannerNatively distributed

Replication

EDB PostgresAsync

Google Cloud SpannerConsensus (Raft/Paxos)

Availability

Automatic failover / HA

EDB Postgres✓

Google Cloud Spanner✓

Deployment

EDB PostgresSelf-hosted

Google Cloud SpannerManaged

Serverless / scale-to-zero

EDB Postgres✗

Google Cloud Spanner-

Compatibility

Wire compatibility

EDB PostgresPostgres protocol

Google Cloud SpannerPostgres protocol

Extensibility

Extensions / plugins / UDFs

EDB Postgres✓

Google Cloud Spanner✓

Licensing

Licence class

EDB PostgresPermissive OSS

Google Cloud SpannerProprietary

Data types

JSON / document support

EDB Postgres✓

Google Cloud Spanner-

Geo / spatial

EDB Postgres-

Google Cloud Spanner-

What each one is

The product in its own terms, so the numbers below have context.

EDB Postgres

An open-source command-line tool that automates the provisioning of cloud resources and deployment of PostgreSQL, EDB Postgres Advanced Server, and enterprise infrastructure including high availability, backup and recovery, monitoring, and connection pooling.

Independently observed

Google Cloud Spanner

Leader

Google Cloud Spanner is a managed database service that unifies multiple data models (relational, key-value, graph, vector search) on one platform. It provides up to 99.999% uptime with globally consistent transactions through a distributed timestamp system.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

EDB Postgres

Open sourceFree tier

as of 2026-10-13verify ↗

Google Cloud Spanner

Leader

Usage-basedFree tier90-day trial

Usage-based pricing: compute capacity (nodes/processing units, hourly), storage (monthly), backups, data replication, network bandwidth. Free 90-day trial instances. Optional 1-year and 3-year committed use discounts. Three editions available: Standard, Enterprise, and Enterprise Plus.

as of 2026-08-03verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	EDB Postgres	Google Cloud Spanner
macOSPlatforms	✓	-
WindowsPlatforms	✓	-
LinuxPlatforms	✓	-
CLIPlatforms	✓	-
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✗	✓
HybridDeployment	✗	✓

Platforms

macOS

EDB Postgres✓

Google Cloud Spanner–

Windows

EDB Postgres✓

Google Cloud Spanner–

Linux

EDB Postgres✓

Google Cloud Spanner–

CLI

EDB Postgres✓

Google Cloud Spanner–

Deployment

Cloud / SaaS

EDB Postgres✓

Google Cloud Spanner✓

Self-hosted

EDB Postgres✓

Google Cloud Spanner✓

On-premise

EDB Postgres✗

Google Cloud Spanner✓

Hybrid

EDB Postgres✗

Google Cloud Spanner✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

EDB Postgres

24 total

JDBC Connectors
MongoDB
Cassandra
Hadoop
HBASE
MySQL
Amazon S3
Parquet
Apache Spark
PEM (Postgres Enterprise Manager)
xDB Replication Server
EFM (EDB Failover Manager)
Backup and Recovery Tool
HARP
ETCD
AWS
Azure
Google Cloud
PostgreSQL
EDB Postgres Advanced Server
Terraform
Ansible
PEM
EFM

Independently observed

Google Cloud Spanner

Leader

9 total

Gemini Enterprise Agent Platform
Gemini CLI
Model Context Protocol (MCP)
Agent Development Kit (ADK)
Data Agent Kit
VS Code
Cursor
GitHub Copilot
Kiro

Independently observed

Still deciding?

EDB Postgres or Google Cloud Spanner: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.