Tarantool: riwayat akselerasi pencarian dalam 1C

Baru-baru ini, teman baik kami dari jaringan ritel besar memiliki tugas mempercepat pencarian di 1C.

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---      ,    
local function get_stockBalance_to_queue(spaceIn)
    local x = os.clock();

    local space_name = 'STOCKBALANCES';
    if spaceIn ~= nil and 'string' == type(spaceIn) and spaceIn ~= '' then
        space_name = spaceIn;
    end

    local maxRows = 50000;
    local goods = {};
    local goodsIds = '';

    --- 
    local i = 0;
    local iStock = 0;

    local session = os.time(os.date("!*t"));    
    local borderTime = session — (10); 

    box.begin()
    for _, tuple in pairs(box.space[space_name].index.ISPROCESSED:select(0, { iterator = box.index.EQ, offset = 0, limit = maxRows })) do

        if i == maxRows then break end
        --- tuple[1] — GUID 1 
        --- tuple[2] — GUID 1 
        --- tuple[6] — ,    
        if tuple[6] < borderTime then

            --- ,     ,       —    
            if goods[tuple[1]] == nil then
                goods[tuple[1]] = 1;
                ---  —     
                i = i + 1;
                ---      
                goodsIds = goodsIds .. '"' .. tuple[1] .. '",';
            end
            ---     =  
            pcall(function() box.space[space_name]:update({ tuple[1], tuple[2] }, { { '=', 5, 1 }, { '=', 6, session } }) end);
            ---  —      
            iStock = iStock + 1;
        end
    end

    local stockTmp = {};
    local goodsInStockTmp = {};
    local instock = 0;

    ---   getSumStock       (  ,    ..)
    local stockBalance = _G.Functions.getSumStock(goodsIds);

    ---   getGoodsInStock      in stock — 1/0 (/)
    local goodsInStock = _G.Functions.getGoodsInStock(goodsIds);

    local iGoods = 0;
    for _, tuple in pairs(goods) do

        ---      (   ,        tuple[1],   )
        stockTmp = stockBalance[tuple[1]]['quantityNet'];

        ---      (   ,        tuple[1],   )
        goodsInStockTmp = goodsInStock[tuple[1]];

        ---        — /,      1/0 (/)
        if not stockTmp then
            instock = 0;
        elseif stockTmp > 0 then
            instock = 1;
        elseif stockTmp < 0 then
            instock = 0;
        else
            instock = 0;
        end

        ---           ,       
        if instock ~= goodsInStockTmp then
            ---  —    
            iGoods = iGoods + 1;
            ---  100 —  ( — ISPROCESSED) (/),  ,     
            ---  105 — , / (1/0)
            pcall(function() box.space.GOODS:update(tuple[1], { { '=', 100, 0 }, { '=', 105, instock } }) end);
        end
    end

    box.commit();
    return space_name .. ' for update: ' .. iStock .. '  Goods for update: ' .. i .. ' Updated goods: ' .. iGoods .. ', ' .. (string.format("elapsed time: %.2f", os.clock() — x));
end;

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