forked from MTSR/mapserver
53 lines
996 B
Go
53 lines
996 B
Go
package postgres
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const migrateScript = `
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alter table blocks add column mtime bigint not null default 0;
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create index BLOCKS_TIME on blocks(mtime);
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create or replace function on_blocks_change() returns trigger as
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$BODY$
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BEGIN
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NEW.mtime = floor(EXTRACT(EPOCH from now()) * 1000);
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return NEW;
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END;
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$BODY$
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LANGUAGE plpgsql;
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create trigger blocks_update
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before insert or update
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on blocks
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for each row
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execute procedure on_blocks_change();
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`
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const getBlocksByMtimeQuery = `
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select posx,posy,posz,data,mtime
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from blocks b
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where b.mtime > ?
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order by b.mtime asc
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limit ?
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`
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const getLastBlockQuery = `
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select posx,posy,posz,data,mtime
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from blocks b
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where b.mtime = 0
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and b.posx >= ?
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and b.posy >= ?
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and b.posz >= ?
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order by b.posx asc, b.posy asc, b.posz asc, b.mtime asc
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limit ?
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`
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const countBlocksQuery = `
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select count(*) from blocks b where b.mtime >= ? and b.mtime <= ?
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`
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const getBlockQuery = `
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select pos,data,mtime from blocks b
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where b.posx = ?
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and b.posy = ?
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and b.posz = ?
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`
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