14 lines
392 B
PL/PgSQL
14 lines
392 B
PL/PgSQL
\i wm.sql
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do $$
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declare
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npoints bigint;
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secs bigint;
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begin
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select * from ST_SimplifyWM_Estimate((select st_union(way) from wm_rivers)) into npoints, secs;
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raise notice 'Total points: %', npoints;
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raise notice 'Expected duration: %s (+-%s)', ceil(secs), floor(secs*.5);
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end $$ language plpgsql;
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insert into wm_demo (name, way) select name, ST_SimplifyWM(way, name) from wm_rivers;
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