MonetDB_fdw is a PostgreSQL extension based on Foreign Data Wrapper (FDW) technology, which can enhance PostgreSQL analytical capabilities.
The work based on the excellent oracle_fdw (https://github.com/laurenz/oracle_fdw.git) & postgres_fdw (https://www.postgresql.org/docs/current/postgres-fdw.html) projects.
- RHEL 8/9, CentOS 8/9，Ubuntu
- Halo 1.0.14, 1.0.16
- PostgreSQL 14, 15, 16, 17, 18
- MonetDB 11.56
- Build as PGXS
export USE_PGXS=1
export MONETDB_HOME=<MonetDB installation path>
export PATH=$MONETDB_HOME/bin:$PATH
export LD_LIBRARY_PATH=$MONETDB_HOME/lib64:$LD_LIBRARY_PATH
git clone https://github.com/HaloTech-Co-Ltd/MonetDB_fdw.git
cd MonetDB_fdw
make && make install- Build in a source tree of PostgreSQL
export MONETDB_HOME=<MonetDB installation path>
export PATH=$MONETDB_HOME/bin:$PATH
export LD_LIBRARY_PATH=$MONETDB_HOME/lib64:$LD_LIBRARY_PATH
git clone https://github.com/HaloTech-Co-Ltd/MonetDB_fdw.git <PostgreSQL contrib source path>
cd <PostgreSQL contrib source path>/MonetDB_fdw
make && make install- Create MonetDB_fdw extension
CREATE EXTENSION monetdb_fdw;- Create foreign server
CREATE SERVER foreign_server FOREIGN DATA WRAPPER monetdb_fdw
OPTIONS (host '127.0.0.1', port '50000', dbname 'test');- Create user mapping
CREATE USER MAPPING FOR CURRENT_USER SERVER foreign_server OPTIONS (user 'zm', password 'zm');- Create table (emp for a example) in MonetDB using monetdb_execute function
SELECT monetdb_execute('foreign_server', $$CREATE TABLE emp(
name VARCHAR(20),
age INTEGER
)$$);- Create foreign table
CREATE FOREIGN TABLE emp(
name VARCHAR(20),
age INTEGER
)
SERVER foreign_server
OPTIONS (schema_name 'zm', table_name 'emp');- Now you can query the MonetDB emp table in PostgreSQL
SELECT count(*) FROM emp;- NOTE: you can IMPORT FOREIGN SCHEMA to create foreign table for convenient
DROP FOREIGN TABLE emp;
IMPORT FOREIGN SCHEMA "zm" limit to (emp) from server foreign_server into public;- INSERT
- DELETE
- UPDATE
- SELECT
- COPY
- TRUNCATE
- EXPLAIN
- IMPORT FOREIGN SCHEMA
| Type | Supported | Description |
|---|---|---|
| CHAR | Y | Ref PostgreSQL Doc |
| VARCHAR | Y | Ref PostgreSQL Doc |
| TEXT | Y | Ref PostgreSQL Doc. TEXT(x) is not supported， TEXT(x) will transform to VARCHAR(x) when imported into PostgreSQL |
| CLOB | Y | Base type is TEXT. CLOB(x) is not supported， CLOB(x) will transform to VARCHAR(x) when imported into PostgreSQL |
| STRING | Y | Base type is TEXT，STRING(x) is not supported， STRING(x) will transform to VARCHAR(x) when imported into PostgreSQL |
| BLOB | N | |
| BOOL | Y | Ref PostgreSQL Doc |
| TINYINT | Y | Base type is smallint |
| SMALLINT | Y | Ref PostgreSQL Doc |
| INTEGER | Y | Ref PostgreSQL Doc |
| BIGINT | Y | Ref PostgreSQL Doc |
| HUGEINT | N | Will support soon |
| DECIMAL | Y | NUMERIC |
| REAL | Y | Ref PostgreSQL Doc |
| DOUBLE PRECISION | Y | Ref PostgreSQL Doc |
| FLOAT | Y | Ref PostgreSQL Doc |
| DATE | Y | Ref PostgreSQL Doc |
| TIME | Y | Ref PostgreSQL Doc |
| TIME WITH TIME ZONE | Y | Ref PostgreSQL Doc |
| TIMESTAMP | Y | Ref PostgreSQL Doc |
| TIMESTAMP WITH TIME ZONE | Y | Ref PostgreSQL Doc |
| INTERVAL interval_qualifier | NoT | |
| JSON | Y | Ref PostgreSQL Doc |
| UUID | Y | Ref PostgreSQL Doc |
| URL | Y | Base type is TEXT |
| INET | Y | Ref PostgreSQL Doc |
Test case please reference type_support.sql
Primary Key is required for DELETE and UPDATE operations.