1054. Query Error 1054: Unknown column 'p.NULL' in 'ORDER BY' Query: SELECT p.*,p.id,p.sku_id,p.image_id,p.image_filename,p.ext,(p.count > 0 || p.count IS NULL) AS in_stock FROM shop_product p JOIN shop_category_products cp1 ON p.id = cp1.product_id WHERE p.type_id IN (2) AND p.status = 1 AND cp1.category_id IN(17318,17319,17320,17321,17322,17323,17324,17325,17326,17327,17328,17329,17330,17331,17332,17333,17334,17335,17336,17337,17338,17339,17340,17341,17342,17343,17344,17345,17346,17347,17348,17349,17350,17351,17352,17353,17354,17355,17356,17357,17358,17359,17360,17361,17362,17363,17364,17365,17366,17367,17368,17369,17370,17371,17372,17373,17374,17375,17376,17377,17378,17379,17380,17381,17382,17383,17384,17385,17386,17387,17388,17389,17390,17391,17392,17393,17394,17395,17396,17397,17398,17399,17400,17401,17402,17403,17404,17405,17406,17407,17408,17409,17410,17411,17412,17413,17414,17415,17416,17417,17418,17419,17420,17421,17422,17423,17424,17425,17426,17427,17428,17429,17430,17431,17432,17433,17434,17435,17436,17437,17438,17439,17440,17441,17442,17443,17444,17445,17446,17447,17448,17449,17450,17451,17452,17453,17454,17455,17456,17457,17458,17459,17460,17461,17462,17463,17464,17465,17466,17467,17468,17469,17470,17471,17472,17473,17474,17475,17476,17477,17478,17479,17480,17481,17482,17483,17484,17485,17486,17487,17488,17489,17490,17491,17492,17493,17494,17495,17496,17497,17498,17499,17500,17501,17502,17503,17504,17505,17506,17507,17508,17509,17510,17511,17512,17513,17514,17515,17516,17517,17518,17519,17520,17521,17522,17523,17524,17525,17526,17527,17528,17529,17530,17531,17532,17533,17534,17535,17536,17537,17538,17539,17540,17541,17542,17543,17544,17545,17546,17547,17548,17549,17550,17551,17552,17553,17554,17555,17556,17557,17558,17559,17560,17561,17562,17563,17564,17565,17566,17567,17568,17569,17570,17571,17572,17573,17574,17575,17576,17577,17578,17579,17580,17581,17582,17583,17584,17585,17586,17587,17588,17589,17590,17591,17592,17593,17594,17595,17596,17597,17598,17599,17600,17601,17602,17603,17604,17605,17606,17607,17608,17609,17610,17611,17612,17613,17614,17615,17616,17617,17618,17619,17620,17621,17622,17623,17624,17625,17626,17627,17628,17629,17630,17631,17632,17633,17634,17635,17636,17637,17638,17639,17640,17641,17642,17643,17644,17645,17646,17647,17648,17649,17650,17651,17652,17653,17654,17655,17656,17657,17658,17659,17660,17661,17662) GROUP BY p.id ORDER BY in_stock DESC,p.NULL, p.id LIMIT 24