mssql
WiltonDB / Babelfish 内核,提供 Microsoft SQL Server 协议与语法兼容能力
mssql 配置模板使用 WiltonDB / Babelfish 数据库内核替代原生 PostgreSQL,提供 Microsoft SQL Server 线缆协议(TDS)与 T-SQL 语法兼容能力。
完整教程请参考:Babelfish (MSSQL) 内核使用说明
配置概览
- 配置名称:
mssql - 节点数量: 单节点
- 配置说明:WiltonDB / Babelfish 配置模板,提供 SQL Server 协议兼容
- 适用系统:
el8,el9,el10,u22,u24(Debian 不可用) - 适用架构:
x86_64 - 相关配置:
meta
启用方式:
./configure -c mssql [-i <primary_ip>]
配置内容
源文件地址:pigsty/conf/mssql.yml
---
#==============================================================#
# File : mssql.yml
# Desc : Babelfish: WiltonDB (MSSQL Compatible) template
# Ctime : 2020-08-01
# Mtime : 2025-12-28
# Docs : https://doc.pgsty.com/config
# License : Apache-2.0 @ https://pigsty.io/docs/about/license/
# Copyright : 2018-2026 Ruohang Feng / Vonng (rh@vonng.com)
#==============================================================#
# This is the config template for Babelfish Kernel (WiltonDB),
# Which is a PostgreSQL 15 fork with SQL Server Compatibility
# tutorial: https://doc.pgsty.com/pgsql/kernel/babelfish
#
# Usage:
# curl https://repo.pigsty.io/get | bash
# ./configure -c mssql
# ./deploy.yml
all:
children:
infra: { hosts: { 10.10.10.10: { infra_seq: 1 }} ,vars: { repo_enabled: false }}
etcd: { hosts: { 10.10.10.10: { etcd_seq: 1 }} ,vars: { etcd_cluster: etcd }}
#minio: { hosts: { 10.10.10.10: { minio_seq: 1 }} ,vars: { minio_cluster: minio }}
#----------------------------------------------#
# Babelfish Database Cluster
#----------------------------------------------#
pg-meta:
hosts:
10.10.10.10: { pg_seq: 1, pg_role: primary }
vars:
pg_cluster: pg-meta
pg_users:
- {name: dbuser_mssql ,password: DBUser.MSSQL ,superuser: true, pgbouncer: true ,roles: [dbrole_admin], comment: superuser & owner for babelfish }
pg_databases:
- name: mssql
baseline: mssql.sql
extensions: [uuid-ossp, babelfishpg_common, babelfishpg_tsql, babelfishpg_tds, babelfishpg_money, pg_hint_plan, system_stats, tds_fdw]
owner: dbuser_mssql
parameters: { 'babelfishpg_tsql.migration_mode' : 'multi-db' }
comment: babelfish cluster, a MSSQL compatible pg cluster
node_crontab: [ '00 01 * * * postgres /pg/bin/pg-backup full' ] # make a full backup every 1am
# Babelfish / WiltonDB Ad Hoc Settings
pg_mode: mssql # Microsoft SQL Server Compatible Mode
pg_version: 15
pg_packages: [ wiltondb, pgsql-common, sqlcmd ]
pg_libs: 'babelfishpg_tds, pg_stat_statements, auto_explain' # add timescaledb to shared_preload_libraries
pg_default_hba_rules: # overwrite default HBA rules for babelfish cluster
- { user: '${dbsu}' ,db: all ,addr: local ,auth: ident ,title: 'dbsu access via local os user ident' }
- { user: '${dbsu}' ,db: replication ,addr: local ,auth: ident ,title: 'dbsu replication from local os ident' }
- { user: '${repl}' ,db: replication ,addr: localhost ,auth: pwd ,title: 'replicator replication from localhost' }
- { user: '${repl}' ,db: replication ,addr: intra ,auth: pwd ,title: 'replicator replication from intranet' }
- { user: '${repl}' ,db: postgres ,addr: intra ,auth: pwd ,title: 'replicator postgres db from intranet' }
- { user: '${monitor}' ,db: all ,addr: localhost ,auth: pwd ,title: 'monitor from localhost with password' }
- { user: '${monitor}' ,db: all ,addr: infra ,auth: pwd ,title: 'monitor from infra host with password' }
- { user: '${admin}' ,db: all ,addr: infra ,auth: ssl ,title: 'admin @ infra nodes with pwd & ssl' }
- { user: '${admin}' ,db: all ,addr: world ,auth: ssl ,title: 'admin @ everywhere with ssl & pwd' }
- { user: dbuser_mssql ,db: mssql ,addr: intra ,auth: md5 ,title: 'allow mssql dbsu intranet access' } # <--- use md5 auth method for mssql user
- { user: '+dbrole_readonly',db: all ,addr: localhost ,auth: pwd ,title: 'pgbouncer read/write via local socket' }
- { user: '+dbrole_readonly',db: all ,addr: intra ,auth: pwd ,title: 'read/write biz user via password' }
- { user: '+dbrole_offline' ,db: all ,addr: intra ,auth: pwd ,title: 'allow etl offline tasks from intranet' }
pg_default_services: # route primary & replica service to mssql port 1433
- { name: primary ,port: 5433 ,dest: 1433 ,check: /primary ,selector: "[]" }
- { name: replica ,port: 5434 ,dest: 1433 ,check: /read-only ,selector: "[]" , backup: "[? pg_role == `primary` || pg_role == `offline` ]" }
- { name: default ,port: 5436 ,dest: postgres ,check: /primary ,selector: "[]" }
- { name: offline ,port: 5438 ,dest: postgres ,check: /replica ,selector: "[? pg_role == `offline` || pg_offline_query ]" , backup: "[? pg_role == `replica` && !pg_offline_query]" }
vars:
#----------------------------------------------#
# INFRA : https://doc.pgsty.com/infra/param
#----------------------------------------------#
version: v4.0.0 # pigsty version string
admin_ip: 10.10.10.10 # admin node ip address
region: default # upstream mirror region: default,china,europe
infra_portal: # infra services exposed via portal
home : { domain: i.pigsty } # default domain name
#----------------------------------------------#
# NODE : https://doc.pgsty.com/node/param
#----------------------------------------------#
nodename_overwrite: false # do not overwrite node hostname on single node mode
node_repo_modules: node,infra,pgsql,mssql # extra mssql repo is required
node_tune: oltp # node tuning specs: oltp,olap,tiny,crit
#----------------------------------------------#
# PGSQL : https://doc.pgsty.com/pgsql/param
#----------------------------------------------#
pg_version: 15 # Babelfish kernel is compatible with postgres 15
pg_conf: oltp.yml # pgsql tuning specs: {oltp,olap,tiny,crit}.yml
#----------------------------------------------#
# PASSWORD : https://doc.pgsty.com/config/security
#----------------------------------------------#
grafana_admin_password: pigsty
grafana_view_password: DBUser.Viewer
pg_admin_password: DBUser.DBA
pg_monitor_password: DBUser.Monitor
pg_replication_password: DBUser.Replicator
patroni_password: Patroni.API
haproxy_admin_password: pigsty
minio_secret_key: S3User.MinIO
etcd_root_password: Etcd.Root
...配置解读
mssql 模板让您可以使用 SQL Server Management Studio (SSMS) 或其他 SQL Server 客户端工具连接 PostgreSQL。
关键特性:
- 使用 TDS 协议(端口 1433),兼容 SQL Server 客户端
- 支持 T-SQL 语法,迁移成本低
- 保留 PostgreSQL 的 ACID 特性和扩展生态
- 支持
multi-db和single-db两种迁移模式
连接方式:
# 使用 sqlcmd 命令行工具
sqlcmd -S 10.10.10.10,1433 -U dbuser_mssql -P DBUser.MSSQL -d mssql
# 使用 SSMS 或 Azure Data Studio
# Server: 10.10.10.10,1433
# Authentication: SQL Server Authentication
# Login: dbuser_mssql
# Password: DBUser.MSSQL
适用场景:
- 从 SQL Server 迁移到 PostgreSQL
- 需要同时支持 SQL Server 和 PostgreSQL 客户端的应用
- 希望利用 PostgreSQL 生态同时保持 T-SQL 兼容性
注意事项:
- WiltonDB 基于 PostgreSQL 15,不支持更高版本特性
- 部分 T-SQL 语法可能存在兼容性差异,请参考 Babelfish 兼容性文档
- 需要使用
md5认证方式(而非scram-sha-256)