view PostgreSQL/Plugins/FastTotalSize.sql @ 161:2ccde9c7311b optimized-routes

added new optimized REST routes. this is a temporary work to try to speed up some routes (used by LRO). This way, we avoid another app to access the Orthanc DB and we skip the plugin SDK update for a very specific route
author Alain Mazy <alain@mazy.be>
date Fri, 10 Jul 2020 13:26:47 +0200 (2020-07-10)
parents 8dd29af7c844
children
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CREATE TABLE GlobalIntegers(
       key INTEGER PRIMARY KEY,
       value BIGINT);

INSERT INTO GlobalIntegers
SELECT 0, CAST(COALESCE(SUM(compressedSize), 0) AS BIGINT) FROM AttachedFiles;

INSERT INTO GlobalIntegers
SELECT 1, CAST(COALESCE(SUM(uncompressedSize), 0) AS BIGINT) FROM AttachedFiles;



CREATE FUNCTION AttachedFileIncrementSizeFunc() 
RETURNS TRIGGER AS $body$
BEGIN
  UPDATE GlobalIntegers SET value = value + new.compressedSize WHERE key = 0;
  UPDATE GlobalIntegers SET value = value + new.uncompressedSize WHERE key = 1;
  RETURN NULL;
END;
$body$ LANGUAGE plpgsql;

CREATE FUNCTION AttachedFileDecrementSizeFunc() 
RETURNS TRIGGER AS $body$
BEGIN
  UPDATE GlobalIntegers SET value = value - old.compressedSize WHERE key = 0;
  UPDATE GlobalIntegers SET value = value - old.uncompressedSize WHERE key = 1;
  RETURN NULL;
END;
$body$ LANGUAGE plpgsql;



CREATE TRIGGER AttachedFileIncrementSize
AFTER INSERT ON AttachedFiles
FOR EACH ROW
EXECUTE PROCEDURE AttachedFileIncrementSizeFunc();

CREATE TRIGGER AttachedFileDecrementSize
AFTER DELETE ON AttachedFiles
FOR EACH ROW
EXECUTE PROCEDURE AttachedFileDecrementSizeFunc();