Is it possible to make a blob which is a compressed binary representation of a string, searchable?
No. You would need to extract the text and store this on the document. This is what e.g. the ingest attachement plugin does when indexing binary documents and files.
I have compressed data into blob using: Erlang -- External Term Format
Will this also be retrievable by the plugin ?
I do not believe that is supported.
Thanks 
im glad was able to get to a conclusion, will think of some other way
Hey @Christian I read that Tika supports:
"Tar, AR, ARJ, CPIO, Dump, Zip, 7Zip, Gzip, BZip2, XZ, LZMA, Z and Pack200"
In Apache Tika – Supported Document Formats under section ' Compression and packaging formats'.
But I understand for Elasticsearch we cannot index on compressed formats.. and need to uncompress and only then store documents or string using ingest attachment plugin ?
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