Run this query on your database and it will make it so that everytime your character dies, the buildables built in previous charIDs will get updated to the newest charID. This allows you to remove anything you have built even after many many deaths.
CREATE DEFINER=`root`@`%` TRIGGER `update_owner` AFTER INSERT ON `character_data` FOR EACH ROW BEGIN
UPDATE object_data SET CharacterID=NEW.CharacterID WHERE CharacterID IN
(SELECT CharacterID FROM player_login WHERE PlayerUID=NEW.PlayerUID) AND (Classname='WoodSmallWall_DZ' OR Classname='WoodSmallWallThird_DZ' OR Classname='WoodLargeWall_DZ'OR Classname='Land_DZE_GarageWoodDoor' OR Classname='WoodLargeWallDoor_DZ' OR Classname='WoodSmallWallDoor_DZ' OR Classname='WoodStairs_DZ' OR Classname='WoodStairsSans_DZ' OR Classname='WoodSmallWallWin_DZ' OR Classname='WoodLargeWallWin_DZ' OR Classname='WoodShack_DZ' OR Classname='WoodRamp_DZ' OR Classname='WoodLadder_DZ' OR Classname='WoodFloor_DZ' OR Classname='WoodFloorQuarter_DZ' OR Classname='WoodFloorHalf_DZ' OR Classname='Wooden_shed_DZ' OR Classname='Land_DZE_WoodDoor' OR Classname='Land_DZE_LargeWoodDoor' OR Classname='Land_DZE_GarageWoodDoor' OR Classname='CinderWall_DZ' OR Classname='CinderWallHalf_DZ' OR Classname='CinderWallDoorway_DZ' OR Classname='CinderWallDoor_DZ' OR Classname='CinderWallSmallDoorway_DZ' OR Classname='CinderWallDoorSmall_DZ' OR Classname='Plastic_Pole_EP1_DZ' OR Classname='TentStorage' OR Classname='TentStorageDomed' OR Classname='TentStorageDomed2' OR Classname='LightPole_DZ' OR Classname='SandNest_DZ' OR Classname='MetalFloor_DZ' OR Classname='Hedgehog_DZ' OR Classname='Sandbag1_DZ' OR Classname='WoodGate_DZ' OR Classname='Land_HBarrier1_DZ' OR Classname='Land_HBarrier3_DZ' OR Classname='Fence_corrugated_DZ' OR Classname='M240Nest_DZ' OR Classname='CanvasHut_DZ' OR Classname='ParkBench_DZ' OR Classname='MetalGate_DZ' OR Classname='OutHouse_DZ' OR Classname='WoodShack_DZ' OR Classname='StorageShed_DZ' OR Classname='StickFence_DZ' OR Classname='DesertCamoNet_DZ' OR Classname='ForestCamoNet_DZ' OR Classname='DesertLargeCamoNet_DZ' OR Classname='ForestLargeCamoNet_DZ' OR Classname='DeerStand_DZ' OR Classname='MetalPanel_DZ' OR Classname='WorkBench_DZ');
END
CREATE DEFINER=`root`@`%` TRIGGER `update_owner` AFTER INSERT ON `character_data` FOR EACH ROW BEGIN
UPDATE object_data SET CharacterID=NEW.CharacterID WHERE CharacterID IN
(SELECT CharacterID FROM player_login WHERE PlayerUID=NEW.PlayerUID) AND (Classname='WoodSmallWall_DZ' OR Classname='WoodSmallWallThird_DZ' OR Classname='WoodLargeWall_DZ'OR Classname='Land_DZE_GarageWoodDoor' OR Classname='WoodLargeWallDoor_DZ' OR Classname='WoodSmallWallDoor_DZ' OR Classname='WoodStairs_DZ' OR Classname='WoodStairsSans_DZ' OR Classname='WoodSmallWallWin_DZ' OR Classname='WoodLargeWallWin_DZ' OR Classname='WoodShack_DZ' OR Classname='WoodRamp_DZ' OR Classname='WoodLadder_DZ' OR Classname='WoodFloor_DZ' OR Classname='WoodFloorQuarter_DZ' OR Classname='WoodFloorHalf_DZ' OR Classname='Wooden_shed_DZ' OR Classname='Land_DZE_WoodDoor' OR Classname='Land_DZE_LargeWoodDoor' OR Classname='Land_DZE_GarageWoodDoor' OR Classname='CinderWall_DZ' OR Classname='CinderWallHalf_DZ' OR Classname='CinderWallDoorway_DZ' OR Classname='CinderWallDoor_DZ' OR Classname='CinderWallSmallDoorway_DZ' OR Classname='CinderWallDoorSmall_DZ' OR Classname='Plastic_Pole_EP1_DZ' OR Classname='TentStorage' OR Classname='TentStorageDomed' OR Classname='TentStorageDomed2' OR Classname='LightPole_DZ' OR Classname='SandNest_DZ' OR Classname='MetalFloor_DZ' OR Classname='Hedgehog_DZ' OR Classname='Sandbag1_DZ' OR Classname='WoodGate_DZ' OR Classname='Land_HBarrier1_DZ' OR Classname='Land_HBarrier3_DZ' OR Classname='Fence_corrugated_DZ' OR Classname='M240Nest_DZ' OR Classname='CanvasHut_DZ' OR Classname='ParkBench_DZ' OR Classname='MetalGate_DZ' OR Classname='OutHouse_DZ' OR Classname='WoodShack_DZ' OR Classname='StorageShed_DZ' OR Classname='StickFence_DZ' OR Classname='DesertCamoNet_DZ' OR Classname='ForestCamoNet_DZ' OR Classname='DesertLargeCamoNet_DZ' OR Classname='ForestLargeCamoNet_DZ' OR Classname='DeerStand_DZ' OR Classname='MetalPanel_DZ' OR Classname='WorkBench_DZ');
END