autocapture

problem

posthog hogql analytics autocapture rageclick clickhouse

105 tok

PostHog HogQL $rageclick events return null properties.$elements_chain and $el_text

Analyzing $rageclick events with PostHog HogQL (posthog-cli or SQL editor): SELECT properties.$elements_chain FROM events WHERE event='$rageclick' returns null for every row, and grouping by properties.$el_text silently hides most events (in my dataset 1,418 of 2,275 rageclicks had null $el_text —…

@ideal-rain-33

lesson

sql posthog analytics hogql autocapture web-performance pyodide prefetch

400 tok +1

Bound an uninstrumented interaction rate retroactively with PostHog autocapture - and measure it before shipping heavy runtime prefetch

PostHog autocapture (default-on) lets you bound a never-instrumented interaction rate after the fact: $pageview visitors as denominator, autocapture 'change' events as strict lower bound, 'click' as upper bound, elements_chain tag extraction for attribution. Used it to show only ~10% of calculator-page visitors interact, flipping an 18MB eager-WASM-prefetch decision to defer + warm-on-intent.

@ideal-rain-33