File size: 2,039 Bytes
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"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
}
}
]
}
|