|
| 1 | +set enable_seqscan=off; |
| 2 | +CREATE TABLE test_array ( |
| 3 | + i int2[] |
| 4 | +); |
| 5 | +INSERT INTO test_array VALUES ('{}'), ('{0}'), ('{1,2,3,4}'), ('{1,2,3}'), ('{1,2}'), ('{1}'); |
| 6 | +CREATE INDEX idx_array ON test_array USING rum (i); |
| 7 | +EXPLAIN (COSTS OFF) SELECT * FROM test_array WHERE i = '{}'; |
| 8 | + QUERY PLAN |
| 9 | +------------------------------------------ |
| 10 | + Index Scan using idx_array on test_array |
| 11 | + Index Cond: (i = '{}'::smallint[]) |
| 12 | +(2 rows) |
| 13 | + |
| 14 | +SELECT * FROM test_array WHERE i = '{}'; |
| 15 | + i |
| 16 | +---- |
| 17 | + {} |
| 18 | +(1 row) |
| 19 | + |
| 20 | +SELECT * FROM test_array WHERE i = '{0}'; |
| 21 | + i |
| 22 | +----- |
| 23 | + {0} |
| 24 | +(1 row) |
| 25 | + |
| 26 | +SELECT * FROM test_array WHERE i = '{1}'; |
| 27 | + i |
| 28 | +----- |
| 29 | + {1} |
| 30 | +(1 row) |
| 31 | + |
| 32 | +SELECT * FROM test_array WHERE i = '{1,2}'; |
| 33 | + i |
| 34 | +------- |
| 35 | + {1,2} |
| 36 | +(1 row) |
| 37 | + |
| 38 | +SELECT * FROM test_array WHERE i = '{2,1}'; |
| 39 | + i |
| 40 | +--- |
| 41 | +(0 rows) |
| 42 | + |
| 43 | +SELECT * FROM test_array WHERE i = '{1,2,3,3}'; |
| 44 | + i |
| 45 | +--- |
| 46 | +(0 rows) |
| 47 | + |
| 48 | +SELECT * FROM test_array WHERE i = '{0,0}'; |
| 49 | + i |
| 50 | +--- |
| 51 | +(0 rows) |
| 52 | + |
| 53 | +SELECT * FROM test_array WHERE i = '{100}'; |
| 54 | + i |
| 55 | +--- |
| 56 | +(0 rows) |
| 57 | + |
| 58 | +EXPLAIN (COSTS OFF) SELECT * FROM test_array WHERE i && '{}'; |
| 59 | + QUERY PLAN |
| 60 | +------------------------------------------ |
| 61 | + Index Scan using idx_array on test_array |
| 62 | + Index Cond: (i && '{}'::smallint[]) |
| 63 | +(2 rows) |
| 64 | + |
| 65 | +SELECT * FROM test_array WHERE i && '{}'; |
| 66 | + i |
| 67 | +--- |
| 68 | +(0 rows) |
| 69 | + |
| 70 | +SELECT * FROM test_array WHERE i && '{1}'; |
| 71 | + i |
| 72 | +----------- |
| 73 | + {1,2,3,4} |
| 74 | + {1,2,3} |
| 75 | + {1,2} |
| 76 | + {1} |
| 77 | +(4 rows) |
| 78 | + |
| 79 | +SELECT * FROM test_array WHERE i && '{2}'; |
| 80 | + i |
| 81 | +----------- |
| 82 | + {1,2,3,4} |
| 83 | + {1,2,3} |
| 84 | + {1,2} |
| 85 | +(3 rows) |
| 86 | + |
| 87 | +SELECT * FROM test_array WHERE i && '{3}'; |
| 88 | + i |
| 89 | +----------- |
| 90 | + {1,2,3,4} |
| 91 | + {1,2,3} |
| 92 | +(2 rows) |
| 93 | + |
| 94 | +SELECT * FROM test_array WHERE i && '{4}'; |
| 95 | + i |
| 96 | +----------- |
| 97 | + {1,2,3,4} |
| 98 | +(1 row) |
| 99 | + |
| 100 | +SELECT * FROM test_array WHERE i && '{1,2}'; |
| 101 | + i |
| 102 | +----------- |
| 103 | + {1,2,3,4} |
| 104 | + {1,2,3} |
| 105 | + {1,2} |
| 106 | + {1} |
| 107 | +(4 rows) |
| 108 | + |
| 109 | +SELECT * FROM test_array WHERE i && '{1,2,3}'; |
| 110 | + i |
| 111 | +----------- |
| 112 | + {1,2,3,4} |
| 113 | + {1,2,3} |
| 114 | + {1,2} |
| 115 | + {1} |
| 116 | +(4 rows) |
| 117 | + |
| 118 | +SELECT * FROM test_array WHERE i && '{1,2,3,4}'; |
| 119 | + i |
| 120 | +----------- |
| 121 | + {1,2,3,4} |
| 122 | + {1,2,3} |
| 123 | + {1,2} |
| 124 | + {1} |
| 125 | +(4 rows) |
| 126 | + |
| 127 | +SELECT * FROM test_array WHERE i && '{4,3,2,1}'; |
| 128 | + i |
| 129 | +----------- |
| 130 | + {1,2,3,4} |
| 131 | + {1,2,3} |
| 132 | + {1,2} |
| 133 | + {1} |
| 134 | +(4 rows) |
| 135 | + |
| 136 | +SELECT * FROM test_array WHERE i && '{0,0}'; |
| 137 | + i |
| 138 | +----- |
| 139 | + {0} |
| 140 | +(1 row) |
| 141 | + |
| 142 | +SELECT * FROM test_array WHERE i && '{100}'; |
| 143 | + i |
| 144 | +--- |
| 145 | +(0 rows) |
| 146 | + |
| 147 | +EXPLAIN (COSTS OFF) SELECT * FROM test_array WHERE i @> '{}'; |
| 148 | + QUERY PLAN |
| 149 | +------------------------------------------ |
| 150 | + Index Scan using idx_array on test_array |
| 151 | + Index Cond: (i @> '{}'::smallint[]) |
| 152 | +(2 rows) |
| 153 | + |
| 154 | +SELECT * FROM test_array WHERE i @> '{}'; |
| 155 | + i |
| 156 | +----------- |
| 157 | + {} |
| 158 | + {0} |
| 159 | + {1,2,3,4} |
| 160 | + {1,2,3} |
| 161 | + {1,2} |
| 162 | + {1} |
| 163 | +(6 rows) |
| 164 | + |
| 165 | +SELECT * FROM test_array WHERE i @> '{1}'; |
| 166 | + i |
| 167 | +----------- |
| 168 | + {1,2,3,4} |
| 169 | + {1,2,3} |
| 170 | + {1,2} |
| 171 | + {1} |
| 172 | +(4 rows) |
| 173 | + |
| 174 | +SELECT * FROM test_array WHERE i @> '{2}'; |
| 175 | + i |
| 176 | +----------- |
| 177 | + {1,2,3,4} |
| 178 | + {1,2,3} |
| 179 | + {1,2} |
| 180 | +(3 rows) |
| 181 | + |
| 182 | +SELECT * FROM test_array WHERE i @> '{3}'; |
| 183 | + i |
| 184 | +----------- |
| 185 | + {1,2,3,4} |
| 186 | + {1,2,3} |
| 187 | +(2 rows) |
| 188 | + |
| 189 | +SELECT * FROM test_array WHERE i @> '{4}'; |
| 190 | + i |
| 191 | +----------- |
| 192 | + {1,2,3,4} |
| 193 | +(1 row) |
| 194 | + |
| 195 | +SELECT * FROM test_array WHERE i @> '{1,2,4}'; |
| 196 | + i |
| 197 | +----------- |
| 198 | + {1,2,3,4} |
| 199 | +(1 row) |
| 200 | + |
| 201 | +SELECT * FROM test_array WHERE i @> '{1,2,3,4}'; |
| 202 | + i |
| 203 | +----------- |
| 204 | + {1,2,3,4} |
| 205 | +(1 row) |
| 206 | + |
| 207 | +SELECT * FROM test_array WHERE i @> '{4,3,2,1}'; |
| 208 | + i |
| 209 | +----------- |
| 210 | + {1,2,3,4} |
| 211 | +(1 row) |
| 212 | + |
| 213 | +SELECT * FROM test_array WHERE i @> '{0,0}'; |
| 214 | + i |
| 215 | +----- |
| 216 | + {0} |
| 217 | +(1 row) |
| 218 | + |
| 219 | +SELECT * FROM test_array WHERE i @> '{100}'; |
| 220 | + i |
| 221 | +--- |
| 222 | +(0 rows) |
| 223 | + |
| 224 | +EXPLAIN (COSTS OFF) SELECT * FROM test_array WHERE i <@ '{}'; |
| 225 | + QUERY PLAN |
| 226 | +------------------------------------------ |
| 227 | + Index Scan using idx_array on test_array |
| 228 | + Index Cond: (i <@ '{}'::smallint[]) |
| 229 | +(2 rows) |
| 230 | + |
| 231 | +SELECT * FROM test_array WHERE i <@ '{}'; |
| 232 | + i |
| 233 | +---- |
| 234 | + {} |
| 235 | +(1 row) |
| 236 | + |
| 237 | +SELECT * FROM test_array WHERE i <@ '{1}'; |
| 238 | + i |
| 239 | +----- |
| 240 | + {} |
| 241 | + {1} |
| 242 | +(2 rows) |
| 243 | + |
| 244 | +SELECT * FROM test_array WHERE i <@ '{2}'; |
| 245 | + i |
| 246 | +---- |
| 247 | + {} |
| 248 | +(1 row) |
| 249 | + |
| 250 | +SELECT * FROM test_array WHERE i <@ '{1,2,4}'; |
| 251 | + i |
| 252 | +------- |
| 253 | + {} |
| 254 | + {1,2} |
| 255 | + {1} |
| 256 | +(3 rows) |
| 257 | + |
| 258 | +SELECT * FROM test_array WHERE i <@ '{1,2,3,4}'; |
| 259 | + i |
| 260 | +----------- |
| 261 | + {} |
| 262 | + {1,2,3,4} |
| 263 | + {1,2,3} |
| 264 | + {1,2} |
| 265 | + {1} |
| 266 | +(5 rows) |
| 267 | + |
| 268 | +SELECT * FROM test_array WHERE i <@ '{4,3,2,1}'; |
| 269 | + i |
| 270 | +----------- |
| 271 | + {} |
| 272 | + {1,2,3,4} |
| 273 | + {1,2,3} |
| 274 | + {1,2} |
| 275 | + {1} |
| 276 | +(5 rows) |
| 277 | + |
| 278 | +SELECT * FROM test_array WHERE i <@ '{0,0}'; |
| 279 | + i |
| 280 | +----- |
| 281 | + {} |
| 282 | + {0} |
| 283 | +(2 rows) |
| 284 | + |
| 285 | +SELECT * FROM test_array WHERE i <@ '{100}'; |
| 286 | + i |
| 287 | +---- |
| 288 | + {} |
| 289 | +(1 row) |
| 290 | + |
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