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Create skipping indexes on observations and analysis tables #411
Description
Currently the observations and analysis tables don't have complete indexes. We should create the following ones:
ALTER TABLE obs_web ON CLUSTER oonidata_cluster ADD INDEX measurement_start_time_idx measurement_start_time TYPE minmax GRANULARITY 2;
ALTER TABLE obs_web ON CLUSTER oonidata_cluster ADD INDEX probe_cc_idx probe_cc TYPE minmax GRANULARITY 1;
ALTER TABLE obs_web ON CLUSTER oonidata_cluster ADD INDEX probe_asn_idx probe_asn TYPE minmax GRANULARITY 1;
ALTER TABLE analysis_web_measurement ON CLUSTER oonidata_cluster ADD INDEX probe_asn_idx probe_asn TYPE minmax GRANULARITY 1;
And then re-index the data using:
ALTER TABLE obs_web ON CLUSTER oonidata_cluster MATERIALIZE INDEX measurement_start_time_idx;
ALTER TABLE obs_web ON CLUSTER oonidata_cluster MATERIALIZE INDEX probe_cc_idx;
ALTER TABLE obs_web ON CLUSTER oonidata_cluster MATERIALIZE INDEX probe_asn_idx;
ALTER TABLE analysis_web_measurement ON CLUSTER oonidata_cluster MATERIALIZE INDEX probe_asn_idx;
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