1MONGOC_INDEX_OPT_T(3) libmongoc MONGOC_INDEX_OPT_T(3)
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6 Deprecated since version 1.8.0: This structure is deprecated and
7 should not be used in new code. See Manage Collection Indexes.
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11 #include <mongoc/mongoc.h>
12
13 typedef struct {
14 bool is_initialized;
15 bool background;
16 bool unique;
17 const char *name;
18 bool drop_dups;
19 bool sparse;
20 int32_t expire_after_seconds;
21 int32_t v;
22 const bson_t *weights;
23 const char *default_language;
24 const char *language_override;
25 mongoc_index_opt_geo_t *geo_options;
26 mongoc_index_opt_storage_t *storage_options;
27 const bson_t *partial_filter_expression;
28 const bson_t *collation;
29 void *padding[4];
30 } mongoc_index_opt_t;
31
33 This structure contains the options that may be used for tuning a spe‐
34 cific index.
35
36 See the createIndexes documentations in the MongoDB manual for descrip‐
37 tions of individual options.
38
39 NOTE:
40 dropDups is deprecated as of MongoDB version 3.0.0. This option is
41 silently ignored by the server and unique index builds using this
42 option will fail if a duplicate value is detected.
43
45 {
46 bson_t keys;
47 bson_error_t error;
48 mongoc_index_opt_t opt;
49 mongoc_index_opt_geo_t geo_opt;
50
51 mongoc_index_opt_init (&opt);
52 mongoc_index_opt_geo_init (&geo_opt);
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54 bson_init (&keys);
55 BSON_APPEND_UTF8 (&keys, "location", "2d");
56
57 geo_opt.twod_location_min = -123;
58 geo_opt.twod_location_max = +123;
59 geo_opt.twod_bits_precision = 30;
60 opt.geo_options = &geo_opt;
61
62 collection = mongoc_client_get_collection (client, "test", "geo_test");
63 if (mongoc_collection_create_index (collection, &keys, &opt, &error)) {
64 /* Successfully created the geo index */
65 }
66 bson_destroy (&keys);
67 mongoc_collection_destroy (&collection);
68 }
69
70 SEE ALSO:
71 mongoc_index_opt_geo_t
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73 mongoc_index_opt_wt_t
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77 MongoDB, Inc
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80 2017-present, MongoDB, Inc
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851.25.1 Nov 08, 2023 MONGOC_INDEX_OPT_T(3)