Create LanceDB index after table is created in import

[dhruv-anand-aintech]

Checklist

- [X] Modify `src/vdf_io/import_vdf/lancedb_import.py` ✓ https://github.com/AI-Northstar-Tech/vector-io/commit/f168003cd3994a1082afd1126b665682b0d852f8 [Edit](https://github.com/AI-Northstar-Tech/vector-io/edit/sweep/create_lancedb_index_after_table_is_crea/src/vdf_io/import_vdf/lancedb_import.py) - [X] Modify `src/vdf_io/import_vdf/lancedb_import.py` ✓ https://github.com/AI-Northstar-Tech/vector-io/commit/f168003cd3994a1082afd1126b665682b0d852f8 [Edit](https://github.com/AI-Northstar-Tech/vector-io/edit/sweep/create_lancedb_index_after_table_is_crea/src/vdf_io/import_vdf/lancedb_import.py)

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Step 1: 🔎 Searching

I found the following snippets in your repository. I will now analyze these snippets and come up with a plan.

Some code snippets I think are relevant in decreasing order of relevance (click to expand). If some file is missing from here, you can mention the path in the ticket description.

https://github.com/AI-Northstar-Tech/vector-io/blob/9cec7fece241357cabdb153511b13c9c9236fb0a/src/vdf_io/import_vdf/lancedb_import.py#L1-L163 https://github.com/AI-Northstar-Tech/vector-io/blob/9cec7fece241357cabdb153511b13c9c9236fb0a/src/vdf_io/util.py#L1-L503

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Step 2: ⌨️ Coding

• [X] Modify src/vdf_io/import_vdf/lancedb_import.py ✓ https://github.com/AI-Northstar-Tech/vector-io/commit/f168003cd3994a1082afd1126b665682b0d852f8 Edit

  Modify src/vdf_io/import_vdf/lancedb_import.py with contents: Import the LanceDB `create_index` method at the top of the file:

from lancedb import create_index

• [X] Modify src/vdf_io/import_vdf/lancedb_import.py ✓ https://github.com/AI-Northstar-Tech/vector-io/commit/f168003cd3994a1082afd1126b665682b0d852f8 Edit

  Modify src/vdf_io/import_vdf/lancedb_import.py with contents: In the `upsert_data` method of the `ImportLanceDB` class, after the code block that creates a new table or opens an existing one, add the following to create an index on the table:

# Get the ID column from the parquet file schema
parquet_schema = pq.read_schema(parquet_files[0])
id_column = "id" # Default 
for field in parquet_schema:
    if field.name == ID_COLUMN:
        id_column = field.name
        break

# Create index on the table  
create_index(table, id_column)
tqdm.write(f"Created index on {id_column} for table {new_index_name}")

This code reads the schema of the first parquet file to determine the name of the ID column (defaulting to "id" if not found). It then calls create_index passing the table object and ID column name to create an index on that column.

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Step 3: 🔁 Code Review

I have finished reviewing the code for completeness. I did not find errors for sweep/create_lancedb_index_after_table_is_crea.

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