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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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sonic
🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.
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MeiliSearch
A lightning-fast search API that fits effortlessly into your apps, websites, and workflow
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
I know of https://github.com/blevesearch/bleve and I think there was another project for full text search that I can't find now.
Another one, that seems to be a spinoff of bleve: https://github.com/blugelabs/bluge
Don't know about a progress bar, but here is an open source search engine: https://www.meilisearch.com/
there's nothing faster than clickhouse. all queries have progress display by default (available both in CLI and in golang api). unfortunately full text search is experimental, but you can get (fuzzy) string matching and read data directly from .txt (which would be a bit slower than using a native data format and use much more space) potentially without running a server