Parquet S3 Fdw Versions Save

• Support PosgreSQL 16.0
• Support DDL feature for PGSpider
• Apply Parquet FDW updates

Features:

• Support PosgreSQL 15.0
• Support modify feature
• Support aws region and endpoint options

Bug fixes:

• Fix duplicated data issue when file name contains space
• Allow insert without key column

• Support schemaless feature
• Merge parquet_fdw changes (- 2021 Dec 17)

Support PostgreSQL 14.0

• Support get version
• Merge parquet_fdw changes (- Feb 22)
• Support multi versions test
• Support keep connection control and connection cache information

This 1st release can work with PostgreSQL 13.

The code is based on parquet_fdw created by adjust GmbH. This FDW supports following features as same as the original parquet_fdw :

• Support SELECT of parquet file on local file system.
• Support to create a foreign table for multiple files by specifying file paths.

This FDW supports following features in addition to the original parquet_fdw :

• Support SELECT of parquet file on Amazon S3.
• Support MinIO access instead of Amazon S3.
• Support to create a foreign table for multiple files in a directory by specifying a directory path.

The followings are limitations as same as the original parquet_fdw :

• Modification (INSERT, UPDATE and DELETE) is not supported.
• Transaction is not supported.

The followings are limitations for S3 feature :

• Cannot create a single foreign table using parquet files on both file system and Amazon S3.
• AWS region is hard-coded as "ap-northeast-1". If you want to use another region, you need to modify the source code by changing "AP_NORTHEAST_1" in parquet_s3_fdw_connection.cpp.