Elasticsearch Version

8.15.0

Installed Plugins

No response

Java Version

bundled

OS Version

N/A

Problem Description

Description:

When the index property is set to false, the synthetic_source feature does not handle the bit type correctly. This results in a java.nio.BufferUnderflowException when using synthetic source to reconstruct the document.

Steps to Reproduce

1. Create an index with a dense_vector field where element_type is bit and index is set to false.
2. Populate the index with documents containing the dense_vector field.
3. Attempt to use the synthetic_source feature to reconstruct the document.

Logs (if relevant)

No response