Function V1_createAccessorFromPackageableElementWithNonFunctionSources
Creates an appropriate Accessor from a packageable element.
For IngestDefinition: requires datasetName to identify the dataset.
For Database: schemaName and tableName identify the table, which is
looked up only in that schema. With only tableName, the first table of
that name in any schema is used; with neither, the first table.
Creates an appropriate Accessor from a packageable element.
For IngestDefinition: requires
datasetNameto identify the dataset. For Database:schemaNameandtableNameidentify the table, which is looked up only in that schema. With onlytableName, the first table of that name in any schema is used; with neither, the first table.