[#6218] docs: Adding Documentation for GravitinoPaimonCatalog in Flin…

…k Connectors (#6297)

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close #6218

Co-authored-by: yangyang zhong <[email protected]>

docs/flink-connector/flink-catalog-paimon.md

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+---
+title: "Flink connector paimon catalog"
+slug: /flink-connector/flink-catalog-paimon
+keyword: flink connector paimon catalog
+license: "This software is licensed under the Apache License version 2."
+---
+
+This document provides a comprehensive guide on configuring and using Apache Gravitino Flink connector to access the Paimon catalog managed by the Gravitino server.
+## Capabilities
+
+### Supported Paimon Table Types
+
+* AppendOnly Table
+
+### Supported Operation Types
+
+Supports most DDL and DML operations in Flink SQL, except such operations:
+
+- Function operations
+- Partition operations
+- View operations
+- Querying UDF
+- `LOAD` clause
+- `UNLOAD` clause
+- `CREATE TABLE LIKE` clause
+- `TRUCATE TABLE` clause
+- `UPDATE` clause
+- `DELETE` clause
+- `CALL` clause
+
+## Requirement
+
+* Paimon 0.8
+
+Higher version like 0.9 or above may also supported but have not been tested fully.
+
+## Getting Started
+
+### Prerequisites
+
+Place the following JAR files in the lib directory of your Flink installation:
+
+* paimon-flink-1.18-0.8.2.jar
+
+* gravitino-flink-connector-runtime-\${flinkMajorVersion}_$scalaVersion.jar
+
+### SQL Example
+
+```sql
+
+-- Suppose paimon_catalog is the Paimon catalog name managed by Gravitino
+use catalog paimon_catalog;
+-- Execute statement succeed.
+
+show databases;
+-- +---------------------+
+-- |       database name |
+-- +---------------------+
+-- |             default |
+-- | gravitino_paimon_db |
+-- +---------------------+
+
+SET 'execution.runtime-mode' = 'batch';
+-- [INFO] Execute statement succeed.
+
+SET 'sql-client.execution.result-mode' = 'tableau';
+-- [INFO] Execute statement succeed.
+
+CREATE TABLE paimon_tabla_a (
+    aa BIGINT,
+    bb BIGINT
+);
+
+show tables;
+-- +----------------+
+-- |     table name |
+-- +----------------+
+-- | paimon_table_a |
+-- +----------------+
+
+
+select * from paimon_table_a;
+-- Empty set
+
+insert into paimon_table_a(aa,bb) values(1,2);
+-- [INFO] Submitting SQL update statement to the cluster...
+-- [INFO] SQL update statement has been successfully submitted to the cluster:
+-- Job ID: 74c0c678124f7b452daf08c399d0fee2
+
+select * from paimon_table_a;
+-- +----+----+
+-- | aa | bb |
+-- +----+----+
+-- |  1 |  2 |
+-- +----+----+
+-- 1 row in set
+```
+
+## Catalog properties
+
+Gravitino Flink connector will transform below property names which are defined in catalog properties to Flink Paimon connector configuration.
+
+| Gravitino catalog property name | Flink Paimon connector configuration   | Description                                                                                                                                                                                                 | Since Version    |
+|---------------------------------|----------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------|
+| `catalog-backend`               | `metastore`                            | Catalog backend of Gravitino Paimon catalog. Supports `filesystem`.                                                                                                                      | 0.8.0-incubating |
+| `warehouse`                     | `warehouse`                            | Warehouse directory of catalog. `file:///user/hive/warehouse-paimon/` for local fs, `hdfs://namespace/hdfs/path` for HDFS , `s3://{bucket-name}/path/` for S3 or `oss://{bucket-name}/path` for Aliyun OSS  | 0.8.0-incubating |
+
+Gravitino catalog property names with the prefix `flink.bypass.` are passed to Flink Paimon connector. For example, using `flink.bypass.clients` to pass the `clients` to the Flink Paimon connector.