Notes

tags: Learning English, Journal

tags: English Words Adjective (of an argument , theory, or policy) logical and consistent: they failed to develop a coherent economic strategy. united as or forming a whole: divided into a number of geographically coherent kingdoms. Physics (of waves) having a constant phase relationship.

source: https://jordanbpeterson.com/wp-content/uploads/2018/02/Essay_Writing_Guide.docx tags: How to Write PART I: INTRODUCTION Why are we need to learn how to write an essay? Writing an essay is to think by writing, formulate and organize ideas. Writing an essay is also to learn or explore a new topic. How to get things done? If you don’t have a big chunk of time in your daily life, then don’t relay your success on it, take 15 minutes every day is still powerful: 「日拱一卒，功不唐捐」. ...

tags: PostgresQL Recently, I met a problem in PostgresQL: the index mismatched after batch rows inserted. Run ANALYZE on the table solved this problem after batch rows inerted. Turns out autovacuum has been disabled on the PostgresQL instance: show autovacuum_analyze_scale_factor; show autovacuum_analyze_threshold ; SELECT * FROM pg_settings WHERE name LIKE '%autovacuum%';