panosfol commented on issue #995:
URL: https://github.com/apache/age/issues/995#issuecomment-1627313474
So i researched the above 3 functions and here is what I found:
- The `entitiy_exists()` function uses the macro `GET_LABEL_ID` which takes
the bit shifted `label_id` and reverses the procedure to get the `label_id` .
Here is the macro: `(((uint64)id) >> ENTRY_ID_BITS)`
- The `get_label_name()` function calls the `get_graphid_label_id()`
function that follows the above logic :
`return (int32)(((uint64)gid) >> ENTRY_ID_BITS);`
- The `filter_vertices_on_label_id()` function creates a function call for
the function `_extract_label_id`. That function calls the same function as
`get_label_name()` to get the `label_id`.
According to my solution all of these functions would stay the same but they
function arguments would change to include the value from the new column that I
suggested instead of the `id`. The value of the new column would hold the
`label_id` after the bit shift so we can minimize the changes that we would
need apply to the code.
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