DOCSP-41143: Compound Indexes #15
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| // start-index-compound-query | ||
| val filter = and( | ||
| eq(Movie::type.name, "movie"), | ||
| `in`(Movie::genres.name, "Drama") |
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This is a Kotlin (and probably Java) quirk – in is a language keyword AND a Filters method. To use the method as such you need to surround it with backticks.
source/indexes/compound-index.txt
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| The following is an example of a query that uses the index created in | ||
| the preceding code example: |
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[s] Maybe this introduction can be reworded to improve clarity? It can be hard to parse "following example" vs "preceding example" all in one sentence.
| When creating a compound index, you must specify the following: | ||
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| - The fields on which to create the index | ||
| - The sort order for each field (ascending or descending) |
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[q] Is there a default sort order if the sort order isn't specified or is specifying always required?
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It's required – source
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| To learn more about compound indexes, see :manual:`Compound Indexes </core/index-compound>` | ||
| in the {+mdb-server+} manual. |
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[s] Would linking to this resource be helpful for the reader: https://www.mongodb.com/docs/manual/tutorial/equality-sort-range-rule/#std-label-esr-indexing-rule
(cherry picked from commit 0379473)
(cherry picked from commit 0379473)
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JIRA - https://jira.mongodb.org/browse/DOCSP-41143
Staging - https://preview-mongodbmcmorisi.gatsbyjs.io/kotlin-sync/DOCSP-41143-compound-indexes/indexes/compound-index/
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