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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8 WARNING:
9 Deprecated since version 1.8.0: This structure is deprecated and
10 should not be used in new code. See Manage Collection Indexes.
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14 #include <mongoc/mongoc.h>
15
16 typedef struct {
17 bool is_initialized;
18 bool background;
19 bool unique;
20 const char *name;
21 bool drop_dups;
22 bool sparse;
23 int32_t expire_after_seconds;
24 int32_t v;
25 const bson_t *weights;
26 const char *default_language;
27 const char *language_override;
28 mongoc_index_opt_geo_t *geo_options;
29 mongoc_index_opt_storage_t *storage_options;
30 const bson_t *partial_filter_expression;
31 const bson_t *collation;
32 void *padding[4];
33 } mongoc_index_opt_t;
34
36 This structure contains the options that may be used for tuning a spe‐
37 cific index.
38
39 See the createIndexes documentations in the MongoDB manual for descrip‐
40 tions of individual options.
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42 NOTE:
43 dropDups is deprecated as of MongoDB version 3.0.0. This option is
44 silently ignored by the server and unique index builds using this
45 option will fail if a duplicate value is detected.
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48 {
49 bson_t keys;
50 bson_error_t error;
51 mongoc_index_opt_t opt;
52 mongoc_index_opt_geo_t geo_opt;
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54 mongoc_index_opt_init (&opt);
55 mongoc_index_opt_geo_init (&geo_opt);
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57 bson_init (&keys);
58 BSON_APPEND_UTF8 (&keys, "location", "2d");
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60 geo_opt.twod_location_min = -123;
61 geo_opt.twod_location_max = +123;
62 geo_opt.twod_bits_precision = 30;
63 opt.geo_options = &geo_opt;
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65 collection = mongoc_client_get_collection (client, "test", "geo_test");
66 if (mongoc_collection_create_index (collection, &keys, &opt, &error)) {
67 /* Successfully created the geo index */
68 }
69 bson_destroy (&keys);
70 mongoc_collection_destroy (&collection);
71 }
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73 SEE ALSO:
74 mongoc_index_opt_geo_t
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76 mongoc_index_opt_wt_t
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80 MongoDB, Inc
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83 2017-present, MongoDB, Inc
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881.24.3 Aug 17, 2023 MONGOC_INDEX_OPT_T(3)