Neo4j TypeError: Variables in C parser store nested objects as properties #755
Description
The C parser tries to store tuples/dicts in variable properties, but Neo4j only accepts primitive types
This is a bug in CodeGraphContext's C parser. The properties need to be flattened:
Instead of:
"context": (context_name, context_type, context_line), # Nested - fails in Neo4j
Should be:
"context_name": context_name,
"context_type": context_type,
"context_line": context_line,
Reproduce the error :
git clone https://github.com/ggml-org/llama.cpp.git
cd llama.cpp
~/llama.cpp# cgc index . --force
Loaded configuration from: /root/.codegraphcontext/.env
Using database: Neo4j
Force re-indexing (--force flag detected)
Initializing services and database connection...
Services initialized.
Deleting existing index for: /root/llama.cpp
✓ Deleted old index
Re-indexing: /root/llama.cpp
An error occurred during re-indexing: {neo4j_code:
Neo.ClientError.Statement.TypeError} {message: Property values can only be of
primitive types or arrays thereof. Encountered: Map{name -> String("n"), is_pointer
-> Boolean('false'), is_array -> Boolean('false'), type -> String("int")}.}
{gql_status: 50N42} {gql_status_description: error: general processing exception -
unexpected error. Property values can only be of primitive types or arrays thereof.
Encountered: Map{name -> String("n"), is_pointer -> Boolean('false'), is_array ->
Boolean('false'), type -> String("int")}.}
Update 1: The issue is reproducible in Neo4j and FalkorDB Lite, but not in KùzuDB. As a result, KùzuDB can be used as a workaround.