DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 VARCHAR(10),c2 VARCHAR(10),c3 VARCHAR(10),c4 VARCHAR(10),c5 VARCHAR(10),c6 VARCHAR(10),c7 VARCHAR(10),c8 VARCHAR(10),c9 VARCHAR(10),c10 VARCHAR(10),c11 VARCHAR(10),c12 VARCHAR(10),c13 VARCHAR(10),c14 VARCHAR(10),c15 VARCHAR(10),c16 VARCHAR(10),c17 VARCHAR(10),c18 VARCHAR(10),c19 VARCHAR(10),c20 VARCHAR(10),c21 VARCHAR(10),c22 VARCHAR(10),c23 VARCHAR(10),c24 VARCHAR(10),c25 VARCHAR(10),c26 VARCHAR(10),c27 VARCHAR(10),c28 VARCHAR(10),c29 VARCHAR(10),c30 VARCHAR(10),c31 VARCHAR(10),c32 VARCHAR(10),c33 VARCHAR(10),c34 VARCHAR(10),c35 VARCHAR(10),c36 VARCHAR(10),c37 VARCHAR(10),c38 VARCHAR(10),c39 VARCHAR(10),c40 VARCHAR(10),c41 VARCHAR(10),c42 VARCHAR(10),c43 VARCHAR(10),c44 VARCHAR(10),c45 VARCHAR(10),c46 VARCHAR(10),c47 VARCHAR(10),c48 VARCHAR(10),c49 VARCHAR(10),c50 VARCHAR(10),c51 VARCHAR(10),c52 VARCHAR(10),c53 VARCHAR(10),c54 VARCHAR(10),c55 VARCHAR(10),c56 VARCHAR(10),c57 VARCHAR(10),c58 VARCHAR(10),c59 VARCHAR(10),c60 VARCHAR(10),c61 VARCHAR(10),c62 VARCHAR(10),c63 VARCHAR(10),c64 VARCHAR(10),c65 VARCHAR(10),c66 VARCHAR(10),c67 VARCHAR(10),c68 VARCHAR(10),c69 VARCHAR(10),c70 VARCHAR(10),c71 VARCHAR(10),c72 VARCHAR(10),c73 VARCHAR(10),c74 VARCHAR(10),c75 VARCHAR(10),c76 VARCHAR(10),c77 VARCHAR(10),c78 VARCHAR(10),c79 VARCHAR(10),c80 VARCHAR(10),c81 VARCHAR(10),c82 VARCHAR(10),c83 VARCHAR(10),c84 VARCHAR(10),c85 VARCHAR(10),c86 VARCHAR(10),c87 VARCHAR(10),c88 VARCHAR(10),c89 VARCHAR(10),c90 VARCHAR(10),c91 VARCHAR(10),c92 VARCHAR(10),c93 VARCHAR(10),c94 VARCHAR(10),c95 VARCHAR(10),c96 VARCHAR(10),c97 VARCHAR(10),c98 VARCHAR(10),c99 VARCHAR(10),c100 VARCHAR(10),c101 VARCHAR(10),c102 VARCHAR(10),c103 VARCHAR(10),c104 VARCHAR(10),c105 VARCHAR(10),c106 VARCHAR(10),c107 VARCHAR(10),c108 VARCHAR(10),c109 VARCHAR(10),c110 VARCHAR(10),c111 VARCHAR(10),c112 VARCHAR(10),c113 VARCHAR(10),c114 VARCHAR(10),c115 VARCHAR(10),c116 VARCHAR(10),c117 VARCHAR(10),c118 VARCHAR(10),c119 VARCHAR(10),c120 VARCHAR(10),c121 VARCHAR(10),c122 VARCHAR(10),c123 VARCHAR(10),c124 VARCHAR(10),c125 VARCHAR(10),c126 VARCHAR(10),c127 VARCHAR(10),c128 VARCHAR(10),c129 VARCHAR(10),c130 VARCHAR(10),c131 VARCHAR(10),c132 VARCHAR(10),c133 VARCHAR(10),c134 VARCHAR(10),c135 VARCHAR(10),c136 VARCHAR(10),c137 VARCHAR(10),c138 VARCHAR(10),c139 VARCHAR(10),c140 VARCHAR(10),c141 VARCHAR(10),c142 VARCHAR(10),c143 VARCHAR(10),c144 VARCHAR(10),c145 VARCHAR(10),c146 VARCHAR(10),c147 VARCHAR(10),c148 VARCHAR(10),c149 VARCHAR(10),c150 VARCHAR(10),c151 VARCHAR(10),c152 VARCHAR(10),c153 VARCHAR(10),c154 VARCHAR(10),c155 VARCHAR(10),c156 VARCHAR(10),c157 VARCHAR(10),c158 VARCHAR(10),c159 VARCHAR(10),c160 VARCHAR(10),c161 VARCHAR(10),c162 VARCHAR(10),c163 VARCHAR(10),c164 VARCHAR(10),c165 VARCHAR(10),c166 VARCHAR(10),c167 VARCHAR(10),c168 VARCHAR(10),c169 VARCHAR(10),c170 VARCHAR(10),c171 VARCHAR(10),c172 VARCHAR(10),c173 VARCHAR(10),c174 VARCHAR(10),c175 VARCHAR(10),c176 VARCHAR(10),c177 VARCHAR(10),c178 VARCHAR(10),c179 VARCHAR(10),c180 VARCHAR(10),c181 VARCHAR(10),c182 VARCHAR(10),c183 VARCHAR(10),c184 VARCHAR(10),c185 VARCHAR(10),c186 VARCHAR(10),c187 VARCHAR(10),c188 VARCHAR(10),c189 VARCHAR(10),c190 VARCHAR(10),c191 VARCHAR(10),c192 VARCHAR(10),c193 VARCHAR(10),c194 VARCHAR(10),c195 VARCHAR(10),c196 VARCHAR(10),c197 VARCHAR(10),c198 VARCHAR(10),c199 VARCHAR(10),c200 VARCHAR(10),c201 VARCHAR(10),c202 VARCHAR(10),c203 VARCHAR(10),c204 VARCHAR(10),c205 VARCHAR(10),c206 VARCHAR(10),c207 VARCHAR(10),c208 VARCHAR(10),c209 VARCHAR(10),c210 VARCHAR(10),c211 VARCHAR(10),c212 VARCHAR(10),c213 VARCHAR(10),c214 VARCHAR(10),c215 VARCHAR(10),c216 VARCHAR(10),c217 VARCHAR(10),c218 VARCHAR(10),c219 VARCHAR(10),c220 VARCHAR(10),c221 VARCHAR(10),c222 VARCHAR(10),c223 VARCHAR(10),c224 VARCHAR(10),c225 VARCHAR(10),c226 VARCHAR(10),c227 VARCHAR(10),c228 VARCHAR(10),c229 VARCHAR(10),c230 VARCHAR(10),c231 VARCHAR(10),c232 VARCHAR(10),c233 VARCHAR(10),c234 VARCHAR(10),c235 VARCHAR(10),c236 VARCHAR(10),c237 VARCHAR(10),c238 VARCHAR(10),c239 VARCHAR(10),c240 VARCHAR(10),c241 VARCHAR(10),c242 VARCHAR(10),c243 VARCHAR(10),c244 VARCHAR(10),c245 VARCHAR(10),c246 VARCHAR(10),c247 VARCHAR(10),c248 VARCHAR(10),c249 VARCHAR(10),c250 VARCHAR(10),c251 VARCHAR(10),c252 VARCHAR(10),c253 VARCHAR(10),c254 VARCHAR(10),c255 VARCHAR(10),c256 VARCHAR(10),c257 VARCHAR(10),c258 VARCHAR(10),c259 VARCHAR(10),c260 VARCHAR(10),c261 VARCHAR(10),c262 VARCHAR(10),c263 VARCHAR(10),c264 VARCHAR(10),c265 VARCHAR(10),c266 VARCHAR(10),c267 VARCHAR(10),c268 VARCHAR(10),c269 VARCHAR(10),c270 VARCHAR(10),c271 VARCHAR(10),c272 VARCHAR(10),c273 VARCHAR(10),c274 VARCHAR(10),c275 VARCHAR(10),c276 VARCHAR(10),c277 VARCHAR(10),c278 VARCHAR(10),c279 VARCHAR(10),c280 VARCHAR(10),c281 VARCHAR(10),c282 VARCHAR(10),c283 VARCHAR(10),c284 VARCHAR(10),c285 VARCHAR(10),c286 VARCHAR(10),c287 VARCHAR(10),c288 VARCHAR(10),c289 VARCHAR(10),c290 VARCHAR(10),c291 VARCHAR(10),c292 VARCHAR(10),c293 VARCHAR(10),c294 VARCHAR(10),c295 VARCHAR(10),c296 VARCHAR(10),c297 VARCHAR(10),c298 VARCHAR(10),c299 VARCHAR(10),c300 VARCHAR(10),c301 VARCHAR(10),c302 VARCHAR(10),c303 VARCHAR(10),c304 VARCHAR(10),c305 VARCHAR(10),c306 VARCHAR(10),c307 VARCHAR(10),c308 VARCHAR(10),c309 VARCHAR(10),c310 VARCHAR(10),c311 VARCHAR(10),c312 VARCHAR(10),c313 VARCHAR(10),c314 VARCHAR(10),c315 VARCHAR(10),c316 VARCHAR(10),c317 VARCHAR(10),c318 VARCHAR(10),c319 VARCHAR(10),c320 VARCHAR(10),c321 VARCHAR(10),c322 VARCHAR(10),c323 VARCHAR(10),c324 VARCHAR(10),c325 VARCHAR(10),c326 VARCHAR(10),c327 VARCHAR(10),c328 VARCHAR(10),c329 VARCHAR(10),c330 VARCHAR(10),c331 VARCHAR(10),c332 VARCHAR(10),c333 VARCHAR(10),c334 VARCHAR(10),c335 VARCHAR(10),c336 VARCHAR(10),c337 VARCHAR(10),c338 VARCHAR(10),c339 VARCHAR(10),c340 VARCHAR(10),c341 VARCHAR(10),c342 VARCHAR(10),c343 VARCHAR(10),c344 VARCHAR(10),c345 VARCHAR(10),c346 VARCHAR(10),c347 VARCHAR(10),c348 VARCHAR(10),c349 VARCHAR(10),c350 VARCHAR(10),c351 VARCHAR(10),c352 VARCHAR(10),c353 VARCHAR(10),c354 VARCHAR(10),c355 VARCHAR(10),c356 VARCHAR(10),c357 VARCHAR(10),c358 VARCHAR(10),c359 VARCHAR(10),c360 VARCHAR(10),c361 VARCHAR(10),c362 VARCHAR(10),c363 VARCHAR(10),c364 VARCHAR(10),c365 VARCHAR(10),c366 VARCHAR(10),c367 VARCHAR(10),c368 VARCHAR(10),c369 VARCHAR(10),c370 VARCHAR(10),c371 VARCHAR(10),c372 VARCHAR(10),c373 VARCHAR(10),c374 VARCHAR(10),c375 VARCHAR(10),c376 VARCHAR(10),c377 VARCHAR(10),c378 VARCHAR(10),c379 VARCHAR(10),c380 VARCHAR(10),c381 VARCHAR(10),c382 VARCHAR(10),c383 VARCHAR(10),c384 VARCHAR(10),c385 VARCHAR(10),c386 VARCHAR(10),c387 VARCHAR(10),c388 VARCHAR(10),c389 VARCHAR(10),c390 VARCHAR(10),c391 VARCHAR(10),c392 VARCHAR(10),c393 VARCHAR(10),c394 VARCHAR(10),c395 VARCHAR(10),c396 VARCHAR(10),c397 VARCHAR(10),c398 VARCHAR(10),c399 VARCHAR(10),c400 VARCHAR(10),c401 VARCHAR(10),c402 VARCHAR(10),c403 VARCHAR(10),c404 VARCHAR(10),c405 VARCHAR(10),c406 VARCHAR(10),c407 VARCHAR(10),c408 VARCHAR(10),c409 VARCHAR(10),c410 VARCHAR(10),c411 VARCHAR(10),c412 VARCHAR(10),c413 VARCHAR(10),c414 VARCHAR(10),c415 VARCHAR(10),c416 VARCHAR(10),c417 VARCHAR(10),c418 VARCHAR(10),c419 VARCHAR(10),c420 VARCHAR(10),c421 VARCHAR(10),c422 VARCHAR(10),c423 VARCHAR(10),c424 VARCHAR(10),c425 VARCHAR(10),c426 VARCHAR(10),c427 VARCHAR(10),c428 VARCHAR(10),c429 VARCHAR(10),c430 VARCHAR(10),c431 VARCHAR(10),c432 VARCHAR(10),c433 VARCHAR(10),c434 VARCHAR(10),c435 VARCHAR(10),c436 VARCHAR(10),c437 VARCHAR(10),c438 VARCHAR(10),c439 VARCHAR(10),c440 VARCHAR(10),c441 VARCHAR(10),c442 VARCHAR(10),c443 VARCHAR(10),c444 VARCHAR(10),c445 VARCHAR(10),c446 VARCHAR(10),c447 VARCHAR(10),c448 VARCHAR(10),KEY (c1,c2,c3,c4,c5,c6,c7),KEY (c8,c9,c10,c11,c12,c13,c14),KEY (c15,c16,c17,c18,c19,c20,c21),KEY (c22,c23,c24,c25,c26,c27,c28),KEY (c29,c30,c31,c32,c33,c34,c35),KEY (c36,c37,c38,c39,c40,c41,c42),KEY (c43,c44,c45,c46,c47,c48,c49),KEY (c50,c51,c52,c53,c54,c55,c56),KEY (c57,c58,c59,c60,c61,c62,c63),KEY (c64,c65,c66,c67,c68,c69,c70),KEY (c71,c72,c73,c74,c75,c76,c77),KEY (c78,c79,c80,c81,c82,c83,c84),KEY (c85,c86,c87,c88,c89,c90,c91),KEY (c92,c93,c94,c95,c96,c97,c98),KEY (c99,c100,c101,c102,c103,c104,c105),KEY (c106,c107,c108,c109,c110,c111,c112),KEY (c113,c114,c115,c116,c117,c118,c119),KEY (c120,c121,c122,c123,c124,c125,c126),KEY (c127,c128,c129,c130,c131,c132,c133),KEY (c134,c135,c136,c137,c138,c139,c140),KEY (c141,c142,c143,c144,c145,c146,c147),KEY (c148,c149,c150,c151,c152,c153,c154),KEY (c155,c156,c157,c158,c159,c160,c161),KEY (c162,c163,c164,c165,c166,c167,c168),KEY (c169,c170,c171,c172,c173,c174,c175),KEY (c176,c177,c178,c179,c180,c181,c182),KEY (c183,c184,c185,c186,c187,c188,c189),KEY (c190,c191,c192,c193,c194,c195,c196),KEY (c197,c198,c199,c200,c201,c202,c203),KEY (c204,c205,c206,c207,c208,c209,c210),KEY (c211,c212,c213,c214,c215,c216,c217),KEY (c218,c219,c220,c221,c222,c223,c224),KEY (c225,c226,c227,c228,c229,c230,c231),KEY (c232,c233,c234,c235,c236,c237,c238),KEY (c239,c240,c241,c242,c243,c244,c245),KEY (c246,c247,c248,c249,c250,c251,c252),KEY (c253,c254,c255,c256,c257,c258,c259),KEY (c260,c261,c262,c263,c264,c265,c266),KEY (c267,c268,c269,c270,c271,c272,c273),KEY (c274,c275,c276,c277,c278,c279,c280),KEY (c281,c282,c283,c284,c285,c286,c287),KEY (c288,c289,c290,c291,c292,c293,c294),KEY (c295,c296,c297,c298,c299,c300,c301),KEY (c302,c303,c304,c305,c306,c307,c308),KEY (c309,c310,c311,c312,c313,c314,c315),KEY (c316,c317,c318,c319,c320,c321,c322),KEY (c323,c324,c325,c326,c327,c328,c329),KEY (c330,c331,c332,c333,c334,c335,c336),KEY (c337,c338,c339,c340,c341,c342,c343),KEY (c344,c345,c346,c347,c348,c349,c350),KEY (c351,c352,c353,c354,c355,c356,c357),KEY (c358,c359,c360,c361,c362,c363,c364),KEY (c365,c366,c367,c368,c369,c370,c371),KEY (c372,c373,c374,c375,c376,c377,c378),KEY (c379,c380,c381,c382,c383,c384,c385),KEY (c386,c387,c388,c389,c390,c391,c392),KEY (c393,c394,c395,c396,c397,c398,c399),KEY (c400,c401,c402,c403,c404,c405,c406),KEY (c407,c408,c409,c410,c411,c412,c413),KEY (c414,c415,c416,c417,c418,c419,c420),KEY (c421,c422,c423,c424,c425,c426,c427),KEY (c428,c429,c430,c431,c432,c433,c434),KEY (c435,c436,c437,c438,c439,c440,c441),KEY (c442,c443,c444,c445,c446,c447,c448) ) ;
INSERT INTO t1(c1) VALUES('abc');
SELECT * FROM t1;
c1	c2	c3	c4	c5	c6	c7	c8	c9	c10	c11	c12	c13	c14	c15	c16	c17	c18	c19	c20	c21	c22	c23	c24	c25	c26	c27	c28	c29	c30	c31	c32	c33	c34	c35	c36	c37	c38	c39	c40	c41	c42	c43	c44	c45	c46	c47	c48	c49	c50	c51	c52	c53	c54	c55	c56	c57	c58	c59	c60	c61	c62	c63	c64	c65	c66	c67	c68	c69	c70	c71	c72	c73	c74	c75	c76	c77	c78	c79	c80	c81	c82	c83	c84	c85	c86	c87	c88	c89	c90	c91	c92	c93	c94	c95	c96	c97	c98	c99	c100	c101	c102	c103	c104	c105	c106	c107	c108	c109	c110	c111	c112	c113	c114	c115	c116	c117	c118	c119	c120	c121	c122	c123	c124	c125	c126	c127	c128	c129	c130	c131	c132	c133	c134	c135	c136	c137	c138	c139	c140	c141	c142	c143	c144	c145	c146	c147	c148	c149	c150	c151	c152	c153	c154	c155	c156	c157	c158	c159	c160	c161	c162	c163	c164	c165	c166	c167	c168	c169	c170	c171	c172	c173	c174	c175	c176	c177	c178	c179	c180	c181	c182	c183	c184	c185	c186	c187	c188	c189	c190	c191	c192	c193	c194	c195	c196	c197	c198	c199	c200	c201	c202	c203	c204	c205	c206	c207	c208	c209	c210	c211	c212	c213	c214	c215	c216	c217	c218	c219	c220	c221	c222	c223	c224	c225	c226	c227	c228	c229	c230	c231	c232	c233	c234	c235	c236	c237	c238	c239	c240	c241	c242	c243	c244	c245	c246	c247	c248	c249	c250	c251	c252	c253	c254	c255	c256	c257	c258	c259	c260	c261	c262	c263	c264	c265	c266	c267	c268	c269	c270	c271	c272	c273	c274	c275	c276	c277	c278	c279	c280	c281	c282	c283	c284	c285	c286	c287	c288	c289	c290	c291	c292	c293	c294	c295	c296	c297	c298	c299	c300	c301	c302	c303	c304	c305	c306	c307	c308	c309	c310	c311	c312	c313	c314	c315	c316	c317	c318	c319	c320	c321	c322	c323	c324	c325	c326	c327	c328	c329	c330	c331	c332	c333	c334	c335	c336	c337	c338	c339	c340	c341	c342	c343	c344	c345	c346	c347	c348	c349	c350	c351	c352	c353	c354	c355	c356	c357	c358	c359	c360	c361	c362	c363	c364	c365	c366	c367	c368	c369	c370	c371	c372	c373	c374	c375	c376	c377	c378	c379	c380	c381	c382	c383	c384	c385	c386	c387	c388	c389	c390	c391	c392	c393	c394	c395	c396	c397	c398	c399	c400	c401	c402	c403	c404	c405	c406	c407	c408	c409	c410	c411	c412	c413	c414	c415	c416	c417	c418	c419	c420	c421	c422	c423	c424	c425	c426	c427	c428	c429	c430	c431	c432	c433	c434	c435	c436	c437	c438	c439	c440	c441	c442	c443	c444	c445	c446	c447	c448
abc	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
DROP TABLE t1;