Phase 0: 31 scenarios, catalog, manifests (github.com/AndreaBozzo/tabular-evolution-corpus@85c1790)
80a0e81 verified | { | |
| "schema_version": "1.0", | |
| "scenario_id": "remove_nullable_column", | |
| "title": "Remove nullable column", | |
| "category": "subtractive", | |
| "description": "A nullable string column that held nulls, an empty string and values is removed. The remaining columns and all rows are unchanged.", | |
| "notes": [], | |
| "tags": [ | |
| "remove-field", | |
| "string", | |
| "nullable" | |
| ], | |
| "row_identity": [ | |
| "id" | |
| ], | |
| "versions": [ | |
| { | |
| "id": "v0", | |
| "file": "v0.parquet", | |
| "row_count": 6, | |
| "fingerprint": "sha256:f90aa90d7b9cd185f9473d9a41283a10cab10e82dc9519f22f3c9633de7d28d6", | |
| "schema": [ | |
| { | |
| "name": "id", | |
| "type": "int64", | |
| "nullable": false | |
| }, | |
| { | |
| "name": "name", | |
| "type": "string", | |
| "nullable": true | |
| }, | |
| { | |
| "name": "middle_name", | |
| "type": "string", | |
| "nullable": true | |
| } | |
| ], | |
| "writer": { | |
| "use_dictionary": true | |
| }, | |
| "dictionaries": [] | |
| }, | |
| { | |
| "id": "v1", | |
| "file": "v1.parquet", | |
| "row_count": 6, | |
| "fingerprint": "sha256:ffbd13144dd0c4b932b54b17badd51ef9e9209a5e577a165cab231d0fed9b6d2", | |
| "schema": [ | |
| { | |
| "name": "id", | |
| "type": "int64", | |
| "nullable": false | |
| }, | |
| { | |
| "name": "name", | |
| "type": "string", | |
| "nullable": true | |
| } | |
| ], | |
| "writer": { | |
| "use_dictionary": true | |
| }, | |
| "dictionaries": [] | |
| } | |
| ], | |
| "transitions": [ | |
| { | |
| "from": "v0", | |
| "to": "v1", | |
| "mutations": [ | |
| { | |
| "kind": "remove_field", | |
| "path": "middle_name", | |
| "type": "string", | |
| "nullable": true | |
| } | |
| ], | |
| "invariants": { | |
| "row_count_preserved": true, | |
| "row_identity_preserved": true, | |
| "rows_retained": true, | |
| "paths_retained": false, | |
| "common_values_preserved": true, | |
| "value_changes": [], | |
| "parquet_schema_preserved": false | |
| } | |
| } | |
| ] | |
| } | |