Create index on payload.service_md5 of measturements table #39
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This PR should create an index on
service_md5
inpayload
column ofmeasurements
table. I would like to create index because I would like to use this data to check existence of same data. (See #32) Without index, query likeSELECT COUNT(id) FROM measurements WHERE payload ->> 'service_md5'
would do whole table scan.Connected to Safecast/safecastapi#352