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42 lines
1.4 KiB
ReStructuredText
42 lines
1.4 KiB
ReStructuredText
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Queries
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=======
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Hasura GraphQL engine auto-generates queries and mutations as part of the GraphQL schema from your Postgres schema
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model. It generates a range of possible queries and operators that also work with relationships defined in your SQL
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schema.
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All tracked tables of the database can be queried and modified over the GraphQL endpoint. If you have a tracked table
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in your database, a query and insert/update/delete mutations each are added as nested fields under the root level
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types, ``query_root`` and ``mutation_root`` respectively. For example, the auto-generated query schema for an
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"author" table may look like this:
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.. code-block:: graphql
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author (
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where: author_bool_exp
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limit: Int
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offset: Int
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order_by: [author_order_by!]
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): [author]
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**Note:** If a table is in any Postgres schema other than the ``public`` schema the query field will be of the format
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``<schema_name>_<table_name>``.
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You can explore the entire schema and the available queries using the GraphiQL interface in the Hasura console.
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Let’s take a look at the different queries you can run using the Hasura GraphQL engine. We’ll use examples
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based on a typical author/article schema for reference.
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.. toctree::
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:maxdepth: 1
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simple-object-queries
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nested-object-queries
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query-filters
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sorting
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pagination
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Using multiple arguments <multiple-arguments>
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multiple-queries
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aggregations
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control-access
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