Add ASCII-friendly string decoder to indexer field mapping functions
Indexing of custom blob metadata to specified schema fields is great, but Azure blob metadata is restricted to only ASCII characters. Currently I can get around this limitation by encoding all blob metadata using URI-encoding (Base64 encoding would also work). However, this means that those fields are not searchable/filterable on their original content.
If you were to add a new field mapping function that decodes URI (or Base64) encoded values, this problem would go away.
Hi, this is now available. For details, see https://azure.microsoft.com/en-us/documentation/articles/search-indexer-field-mappings/#base64DecodeFunction
Your Azure Search team