1MONGOC_INDEX_OPT_T(3) libmongoc MONGOC_INDEX_OPT_T(3)
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6 mongoc_index_opt_t - mongoc_index_opt_t
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9 #include <mongoc/mongoc.h>
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11 typedef struct {
12 bool is_initialized;
13 bool background;
14 bool unique;
15 const char *name;
16 bool drop_dups;
17 bool sparse;
18 int32_t expire_after_seconds;
19 int32_t v;
20 const bson_t *weights;
21 const char *default_language;
22 const char *language_override;
23 mongoc_index_opt_geo_t *geo_options;
24 mongoc_index_opt_storage_t *storage_options;
25 const bson_t *partial_filter_expression;
26 const bson_t *collation;
27 void *padding[4];
28 } mongoc_index_opt_t;
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31 This structure is deprecated and should not be used in new code. See
32 create-indexes.
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35 This structure contains the options that may be used for tuning a spe‐
36 cific index.
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38 See the createIndexes documentations in the MongoDB manual for descrip‐
39 tions of individual options.
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41 NOTE:
42 dropDups is deprecated as of MongoDB version 3.0.0. This option is
43 silently ignored by the server and unique index builds using this
44 option will fail if a duplicate value is detected.
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47 {
48 bson_t keys;
49 bson_error_t error;
50 mongoc_index_opt_t opt;
51 mongoc_index_opt_geo_t geo_opt;
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53 mongoc_index_opt_init (&opt);
54 mongoc_index_opt_geo_init (&geo_opt);
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56 bson_init (&keys);
57 BSON_APPEND_UTF8 (&keys, "location", "2d");
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59 geo_opt.twod_location_min = -123;
60 geo_opt.twod_location_max = +123;
61 geo_opt.twod_bits_precision = 30;
62 opt.geo_options = &geo_opt;
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64 collection = mongoc_client_get_collection (client, "test", "geo_test");
65 if (mongoc_collection_create_index (collection, &keys, &opt, &error)) {
66 /* Successfully created the geo index */
67 }
68 bson_destroy (&keys);
69 mongoc_collection_destroy (&collection);
70 }
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73 mongoc_index_opt_geo_t
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75 mongoc_index_opt_wt_t
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78 MongoDB, Inc
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81 2017-present, MongoDB, Inc
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861.16.2 Feb 25, 2020 MONGOC_INDEX_OPT_T(3)