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query plan
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| Unique (cost=1770.49..1770.50 rows=2 width=4) (actual time=8709.170..9807.342 rows=23681 loops=1) | |
| Buffers: shared hit=2812110, temp read=14269 written=14269 | |
| -> Sort (cost=1770.49..1770.50 rows=2 width=4) (actual time=8709.169..9533.428 rows=4428347 loops=1) | |
| Sort Key: locations.id | |
| Sort Method: external merge Disk: 60584kB | |
| Buffers: shared hit=2812110, temp read=14269 written=14269 | |
| -> Nested Loop (cost=0.28..1770.48 rows=2 width=4) (actual time=0.044..5979.426 rows=4428347 loops=1) | |
| Buffers: shared hit=2812110 | |
| -> Seq Scan on pois (cost=0.00..6.34 rows=187 width=32) (actual time=0.007..0.319 rows=187 loops=1) | |
| Filter: (poi_kind_id = 1) | |
| Buffers: shared hit=4 | |
| -> Index Scan using locations_coordinates_index on locations (cost=0.28..9.42 rows=1 width=36) (actual time=0.020..29.736 rows=23681 loops=187) | |
| Index Cond: (coordinates && st_expand(pois.coordinates, '500'::double precision)) | |
| Filter: ((pois.coordinates && st_expand(coordinates, '500'::double precision)) AND _st_dwithin(pois.coordinates, coordinates, '500'::double precision)) | |
| Buffers: shared hit=2812106 | |
| Planning time: 0.160 ms | |
| Execution time: 9812.356 ms | |
| (17 rows) |
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