Module diesel::query_builder
source · Expand description
Contains traits responsible for the actual construction of SQL statements
The types in this module are part of Diesel’s public API, but are generally only useful for implementing Diesel plugins. Applications should generally not need to care about the types inside of this module.
Re-exports
pub use self::query_id::QueryId;
pub use self::update_statement::changeset::AsChangeset;
Modules
Types related to managing bind parameters during query construction.
Structs
The primary type used when walking a Diesel AST during query execution.
AstPassToSqlOptions
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This is used to pass down additional settings to the
AstPass
when rendering the sql string.BatchInsert
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This type represents a batch insert clause, which allows
to insert multiple rows at once.
BoxedLimitOffsetClause
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A boxed variant of
LimitOffsetClause
BoxedSelectStatement
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This type represents a boxed select query
A struct that implements
fmt::Display
and fmt::Debug
to show the SQL
representation of a query.Represents a SQL
DELETE
statement.The structure returned by
insert_into
.InsertStatement
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A fully constructed insert statement.
LimitClause
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A query node representing a limit clause
LimitOffsetClause
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A helper query node that contains both limit and offset clauses
NoFromClause
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This type represents a not existing from clause
NoLimitClause
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A query node indicating the absence of a limit clause
NoOffsetClause
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A query node indicating the absence of an offset clause
OffsetClause
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A query node representing an offset clause
Only
postgres_backend
Represents a query with an
ONLY
clause.ReturningClause
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This type represents a SQL
Returning
clauseSelectStatement
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This type represents a select query
The return value of
sql_query
.Represents a complete
UPDATE
statement.ValuesClause
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This type represents a values clause used as part of insert statements
Traits
Types which can be passed to
update.set
.Types that can be converted into a complete, typed SQL query.
A type which manages serializing bind parameters during query construction.
Interface to add information to conflict targets.
Designed to be open for further additions to conflict targets like constraints
A trait used to construct type erased boxed variant of the current query node
A complete SQL query with a return type.
Constructs a SQL query from a Diesel AST.
An untyped fragment of SQL.
Uniquely identifies queries by their type for the purpose of prepared
statement caching.
SelectClauseExpression
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Specialised variant of
Expression
for select clause typesIndicates that a type is a
SELECT
statement.UndecoratedInsertRecord
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Marker trait to indicate that no additional operations have been added
to a record for insert.
Functions
Takes a query
QueryFragment
expression as an argument and returns a type
that implements fmt::Display
and fmt::Debug
to show the query.Type Definitions
A
DELETE
statement with a boxed WHERE
clauseAn
UPDATE
statement with a boxed WHERE
clause.A specialized Result type used with the query builder.
Represents the return type of
diesel::insert_or_ignore_into
Represents the return type of
diesel::replace_into
Represents a complete
INSERT OR IGNORE
statement.Represents a complete
INSERT OR REPLACE
statement.Derive Macros
Implements
AsChangeset
Implements
QueryId