Query the statistics information of each table in pg (applicable under inexact data count statistics):
-- Query the statistics of all tables under the public schema (estimated value) SELECT relname, reltuples FROM pg_class r JOIN pg_namespace n ON (relnamespace = n.oid) WHERE relkind = 'r' AND n.nspname = 'public';
postgis geometry to text, used with js behind create or replace function geom_to_text(geometry) returns text as $$ select replace( replace(replace(st_astext(st_multi($1)) , 'MULTIPOLYGON(((' ,'' ) , ')))' , '' ) , ')),((' , ';') $$ language sql immutable ;
Irregularly updated later