57 lines
1.3 KiB
MySQL
57 lines
1.3 KiB
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `vn`.`zone_getFromGeo`(vGeoFk INT)
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BEGIN
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/**
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* Returns all zones which have the passed geo included.
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*
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* @param vGeoFk The geo id
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* @return tmp.zone(id) The list of zones
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*/
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DECLARE vChildFk INT DEFAULT vGeoFk;
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DECLARE vParentFk INT;
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DECLARE vLevel INT DEFAULT 1;
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DROP TEMPORARY TABLE IF EXISTS tNodes;
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CREATE TEMPORARY TABLE tNodes
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(PRIMARY KEY (id))
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ENGINE = MEMORY
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SELECT vGeoFk id, vLevel `level`;
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myLoop: LOOP
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SELECT parentFk INTO vParentFk
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FROM zoneGeo
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WHERE id = vChildFk;
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SET vChildFk = vParentFk;
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SET vLevel = vLevel + 1;
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INSERT IGNORE INTO tNodes
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SELECT vChildFk, vLevel
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FROM DUAL
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WHERE vChildFk IS NOT NULL;
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IF ROW_COUNT() = 0 THEN
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LEAVE myLoop;
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END IF;
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END LOOP;
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DROP TEMPORARY TABLE IF EXISTS tmp.zone;
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CREATE TEMPORARY TABLE tmp.zone
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(INDEX (id))
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ENGINE = MEMORY
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SELECT id FROM (
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SELECT zoneFk id, isIncluded
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FROM (
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SELECT i.zoneFk, i.isIncluded
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FROM tNodes n
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JOIN zoneIncluded i ON i.geoFk = n.id
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ORDER BY zoneFk, n.`level`
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LIMIT 10000000000000000000
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) t
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GROUP BY id HAVING isIncluded
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) t;
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DROP TEMPORARY TABLE tNodes;
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END$$
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DELIMITER ;
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