[Feature] Add support for hybrid search for pinecone vector database (#1259)

docs/components/vector-databases/chromadb.mdx

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+---
+title: ChromaDB
+---
+
+<CodeGroup>
+
+```python main.py
+from embedchain import App
+
+# load chroma configuration from yaml file
+app = App.from_config(config_path="config1.yaml")
+```
+
+```yaml config1.yaml
+vectordb:
+  provider: chroma
+  config:
+    collection_name: 'my-collection'
+    dir: db
+    allow_reset: true
+```
+
+```yaml config2.yaml
+vectordb:
+  provider: chroma
+  config:
+    collection_name: 'my-collection'
+    host: localhost
+    port: 5200
+    allow_reset: true
+```
+
+</CodeGroup>
+
+<Snippet file="missing-vector-db-tip.mdx" />

docs/components/vector-databases/elasticsearch.mdx

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+---
+title: Elasticsearch
+---
+
+Install related dependencies using the following command:
+
+```bash
+pip install --upgrade 'embedchain[elasticsearch]'
+```
+
+<Note>
+You can configure the Elasticsearch connection by providing either `es_url` or `cloud_id`. If you are using the Elasticsearch Service on Elastic Cloud, you can find the `cloud_id` on the [Elastic Cloud dashboard](https://cloud.elastic.co/deployments).
+</Note>
+
+You can authorize the connection to Elasticsearch by providing either `basic_auth`, `api_key`, or `bearer_auth`.
+
+<CodeGroup>
+
+```python main.py
+from embedchain import App
+
+# load elasticsearch configuration from yaml file
+app = App.from_config(config_path="config.yaml")
+```
+
+```yaml config.yaml
+vectordb:
+  provider: elasticsearch
+  config:
+    collection_name: 'es-index'
+    cloud_id: 'deployment-name:xxxx'
+    basic_auth:
+      - elastic
+      - <your_password>
+    verify_certs: false
+```
+</CodeGroup>
+
+<Snippet file="missing-vector-db-tip.mdx" />

docs/components/vector-databases/opensearch.mdx

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+---
+title: OpenSearch
+---
+
+Install related dependencies using the following command:
+
+```bash
+pip install --upgrade 'embedchain[opensearch]'
+```
+
+<CodeGroup>
+
+```python main.py
+from embedchain import App
+
+# load opensearch configuration from yaml file
+app = App.from_config(config_path="config.yaml")
+```
+
+```yaml config.yaml
+vectordb:
+  provider: opensearch
+  config:
+    collection_name: 'my-app'
+    opensearch_url: 'https://localhost:9200'
+    http_auth:
+      - admin
+      - admin
+    vector_dimension: 1536
+    use_ssl: false
+    verify_certs: false
+```
+
+</CodeGroup>
+
+<Snippet file="missing-vector-db-tip.mdx" />

docs/components/vector-databases/pinecone.mdx

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+---
+title: Pinecone
+---
+
+## Overview
+
+Install pinecone related dependencies using the following command:
+
+```bash
+pip install --upgrade 'embedchain[pinecone]'
+```
+
+In order to use Pinecone as vector database, set the environment variable `PINECONE_API_KEY` which you can find on [Pinecone dashboard](https://app.pinecone.io/).
+
+<CodeGroup>
+
+```python main.py
+from embedchain import App
+
+# Load pinecone configuration from yaml file
+app = App.from_config(config_path="pod_config.yaml")
+# Or
+app = App.from_config(config_path="serverless_config.yaml")
+```
+
+```yaml pod_config.yaml
+vectordb:
+  provider: pinecone
+  config:
+    metric: cosine
+    vector_dimension: 1536
+    index_name: my-pinecone-index
+    pod_config:
+      environment: gcp-starter
+      metadata_config:
+        indexed:
+          - "url"
+          - "hash"
+```
+
+```yaml serverless_config.yaml
+vectordb:
+  provider: pinecone
+  config:
+    metric: cosine
+    vector_dimension: 1536
+    index_name: my-pinecone-index
+    serverless_config:
+      cloud: aws
+      region: us-west-2
+```
+
+</CodeGroup>
+
+<br />
+<Note>
+You can find more information about Pinecone configuration [here](https://docs.pinecone.io/docs/manage-indexes#create-a-pod-based-index).
+You can also optionally provide `index_name` as a config param in yaml file to specify the index name. If not provided, the index name will be `{collection_name}-{vector_dimension}`.
+</Note>
+
+## Usage
+
+### Hybrid search
+
+Here is an example of how you can do hybrid search using Pinecone as a vector database through Embedchain.
+
+```python
+import os
+
+from embedchain import App
+
+config = {
+    'app': {
+        "config": {
+            "id": "ec-docs-hybrid-search"
+        }
+    },
+    'vectordb': {
+        'provider': 'pinecone',
+        'config': {
+            'metric': 'dotproduct',
+            'vector_dimension': 1536,
+            'index_name': 'my-index',
+            'serverless_config': {
+                'cloud': 'aws',
+                'region': 'us-west-2'
+            },
+            'hybrid_search': True, # Remember to set this for hybrid search
+        }
+    }
+}
+
+# Initialize app
+app = App.from_config(config=config)
+
+# Add documents
+app.add("/path/to/file.pdf", data_type="pdf_file", namespace="my-namespace")
+
+# Query
+app.query("<YOUR QUESTION HERE>", namespace="my-namespace")
+```
+
+Under the hood, Embedchain fetches the relevant chunks from the documents you added by doing hybrid search on the pinecone index.
+If you have questions on how pinecone hybrid search works, please refer to their [offical documentation here](https://docs.pinecone.io/docs/hybrid-search).
+
+<Snippet file="missing-vector-db-tip.mdx" />

docs/components/vector-databases/qdrant.mdx

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+---
+title: Qdrant
+---
+
+In order to use Qdrant as a vector database, set the environment variables `QDRANT_URL` and `QDRANT_API_KEY` which you can find on [Qdrant Dashboard](https://cloud.qdrant.io/).
+
+<CodeGroup>
+```python main.py
+from embedchain import App
+
+# load qdrant configuration from yaml file
+app = App.from_config(config_path="config.yaml")
+```
+
+```yaml config.yaml
+vectordb:
+  provider: qdrant
+  config:
+    collection_name: my_qdrant_index
+```
+</CodeGroup>
+
+<Snippet file="missing-vector-db-tip.mdx" />

docs/components/vector-databases/weaviate.mdx

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+---
+title: Weaviate
+---
+
+
+In order to use Weaviate as a vector database, set the environment variables `WEAVIATE_ENDPOINT` and `WEAVIATE_API_KEY` which you can find on [Weaviate dashboard](https://console.weaviate.cloud/dashboard).
+
+<CodeGroup>
+```python main.py
+from embedchain import App
+
+# load weaviate configuration from yaml file
+app = App.from_config(config_path="config.yaml")
+```
+
+```yaml config.yaml
+vectordb:
+  provider: weaviate
+  config:
+    collection_name: my_weaviate_index
+```
+</CodeGroup>
+
+<Snippet file="missing-vector-db-tip.mdx" />

docs/components/vector-databases/zilliz.mdx

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+---
+title: Zilliz
+---
+
+Install related dependencies using the following command:
+
+```bash
+pip install --upgrade 'embedchain[milvus]'
+```
+
+Set the Zilliz environment variables `ZILLIZ_CLOUD_URI` and `ZILLIZ_CLOUD_TOKEN` which you can find it on their [cloud platform](https://cloud.zilliz.com/).
+
+<CodeGroup>
+
+```python main.py
+import os
+from embedchain import App
+
+os.environ['ZILLIZ_CLOUD_URI'] = 'https://xxx.zillizcloud.com'
+os.environ['ZILLIZ_CLOUD_TOKEN'] = 'xxx'
+
+# load zilliz configuration from yaml file
+app = App.from_config(config_path="config.yaml")
+```
+
+```yaml config.yaml
+vectordb:
+  provider: zilliz
+  config:
+    collection_name: 'zilliz_app'
+    uri: https://xxxx.api.gcp-region.zillizcloud.com
+    token: xxx
+    vector_dim: 1536
+    metric_type: L2
+```
+
+</CodeGroup>
+
+<Snippet file="missing-vector-db-tip.mdx" />