markgomer opened a new pull request, #1200:
URL: https://github.com/apache/age/pull/1200
`load_labels_from_file` and `load_edges_from_file` now checks if there's
already a graph and label with the provided name and creates it if there isn't.
So it won't need to issue `SELECT create_graph();` and `SELECT
create_vlabel();` with these functions calls.
Importing csv files **before**:
```sql
SELECT create_graph('agload');
SELECT create_vlabel('agload','Country');
SELECT load_labels_from_file('agload', 'Country', '/countries.csv');
SELECT create_elabel('agload','has_city');
SELECT load_edges_from_file('agload', 'has_city', 'edges.csv');
```
Importing csv files **after** proposed changes:
```sql
SELECT load_labels_from_file('agload_test_graph', 'Country',
'age_load/countries.csv');
NOTICE: graph "agload_test_graph" has been created
NOTICE: VLabel "Country" has been created
load_labels_from_file
-----------------------
(1 row)
SELECT load_edges_from_file('agload_test_graph', 'has_city',
'age_load/edges.csv');
NOTICE: ELabel "has_city" has been created
load_edges_from_file
----------------------
(1 row)
```
These proposed changes may improve user experience by increasing automation
and requiring less commands for the same task, also decreasing error chances of
wrong issued commands.
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