SELECT COUNT(*) AS n FROM t_trace_v2; SELECT COUNT(*) AS n FROM t_trace_v2 WHERE span_attributes."http.status_code"::BIGINT = 200 AND span_attributes.nested."a.b"[0]::BOOLEAN = true; SELECT COUNT(*) AS n FROM t_trace_v2 WHERE span_attributes."http.status_code"::STRING = 'ok' AND span_attributes.bytes[1]::BIGINT = 2 AND scope_attributes.enabled::BOOLEAN = true AND resource_attributes."deployment.environment"::STRING = 'prod'; SELECT COUNT(*) AS n FROM information_schema.columns WHERE table_name = 't_trace_v2'; SELECT COUNT(*) AS n FROM information_schema.tables WHERE table_name = 't_trace_v2' AND create_options LIKE '%table_data_model=greptime_trace_v2%' AND create_options LIKE '%greptime.semantic.pipeline=greptime_trace_v2%'; SELECT COUNT(*) AS n FROM t_trace_v2 WHERE json_get_string(span_events, '$[0].name') = 'cache.hit' AND json_get_int(span_events, '$[0].attributes."event.code"') = 7 AND json_get_string(span_links, '$[0].trace_id') = 'linked-trace' AND json_get_string(span_links, '$[0].attributes."link.type"') = 'follows_from'; SELECT COUNT(*) AS n FROM t_trace_v2 WHERE json_to_string(span_events) = '[]' AND json_to_string(span_links) = '[]';