Expand description
Includes various helper types and bare functions which are named too generically to be included in prelude, but are often used when using Diesel.
Re-exports§
pub use crate::pg::expression::dsl::*;postgres_backend
Structs§
- Duplicated
Keys mysql_backendA marker type signaling that the givenON CONFLICTclause uses mysql’sON DUPLICATE KEYsyntax that triggers on all unique constraints - Represents the SQL
CURRENT_TIMESTAMPconstant. This is equivalent to theNOW()function on backends that support it. - Represents the SQL
CURRENT_DATEconstant.
Traits§
- OnlyDsl
postgres_backendTheonlymethod - Tablesample
Dsl postgres_backendThetablesamplemethod
Functions§
- Represents a SQL
AVGfunction. This function can only take types which are Foldable. - Creates a SQL
CASE WHEN ... ENDexpression - copy_
from postgres_backendCreates aCOPY FROMstatement - copy_to
postgres_backendCreates aCOPY TOstatement - Creates a SQL
COUNTexpression - Creates a SQL
COUNT(DISTINCT ...)expression - Creates a SQL
COUNT(*)expression - Represents the SQL
DATEfunction. The argument should be a Timestamp expression, and the return value will be an expression of type Date. - Creates a
DELETEstatement. - exists
i-implement-a-third-party-backend-and-opt-into-breaking-changesCreates a SQLEXISTSexpression. - Creates an
INSERTstatement for the target table. - Creates an
INSERT [OR] IGNOREstatement. - Represents a SQL
MAXfunction. This function can only take types which are ordered. - Represents a SQL
MINfunction. This function can only take types which are ordered. - Creates a SQL
NOTexpression - Creates a
REPLACEstatement. - Creates a bare select statement, with no from clause. Primarily used for testing diesel itself, but likely useful for third party crates as well. The given expressions must be selectable from anywhere.
- Use literal SQL in the query builder.
- Construct a full SQL query using raw SQL.
- Represents a SQL
SUMfunction. This function can only take types which are Foldable. - Creates an
UPDATEstatement.
Type Aliases§
- Maps
FtoAlias<S> - The return type of
lhs.and(rhs) - AndNet
postgres_backendThe return type oflsh.and(rhs)for network types - Array
Contains Deprecated postgres_backend - Array
Index Deprecated postgres_backend - The type of
Itemwhen converted to an expression with the same type asTargetExpr - The type of
Itemwhen converted to an expression ofType - Represents the return type of
.as_select() - The return type of
expr.asc() - The return type of
expr.assume_not_null() - AtTime
Zone postgres_backendThe return type ofexpr.at_time_zone(tz) - Bare
Select Deprecated - The return type of
lhs.between(lower, upper) - The return type of
lhs.concat(rhs) - Concat
Array Deprecated postgres_backend - Concat
Binary Deprecated postgres_backend - Concat
Jsonb Deprecated postgres_backend - Contains
postgres_backendThe return type oflhs.contains(rhs)for array expressions - Contains
Jsonb Deprecated postgres_backend - Contains
Net postgres_backendThe return type oflhs.contains(rhs)for network types - Contains
NetLoose postgres_backendThe return type oflhs.contains_or_eq(rhs) - Contains
OrEq postgres_backend - The return type of
expr.desc() - Diff
postgres_backend - Difference
Net postgres_backendThe return type oflsh.diff(rhs) - Represents the return type of
.distinct() - Distinct
On postgres_backendRepresents the return type of.distinct_on(expr) - The return type of
lhs.eq(rhs) - The return type of
lhs.eq_any(rhs) - The return type of
lhs.escape('x') - Represents the return type of
.except(rhs) - Represents the return type of
.except_all(rhs) - The return type of
alias.field(field) - The return type of
alias.fields(fields) - Represents the return type of
.filter(predicate) - Represents the return type of
.find(pk) - Represents the return type of
.filter(lhs.eq(rhs)) - Represents the return type of
.for_key_share() - Represents the return type of
.for_no_key_update() - Represents the return type of
.for_share() - Represents the return type of
.for_update() - Represents the return type of
.group_by(expr) - The return type of
lhs.gt(rhs) - The return type of
lhs.ge(rhs) - HasAll
Keys postgres_backend - HasAll
Keys Jsonb postgres_backendThe return type oflsh.has_all_keys(rhs) - HasAny
Key postgres_backend - HasAny
KeyJsonb postgres_backendThe return type oflsh.has_any_key(rhs) - HasKey
postgres_backend - HasKey
Jsonb postgres_backendThe return type oflsh.has_key(rhs) - Represents the return type of
.having(predicate) - ILike
postgres_backendThe return type oflhs.ilike(rhs) - Ilike
postgres_backend - Index
postgres_backendThe return type oflhs.index(rhs) - Represents the return type of
.inner_join(rhs) - Represents the return type of
.inner_join(rhs.on(on)) - A query source representing the inner join between two tables.
- Represents the return type of
.intersect(rhs) - Represents the return type of
.intersect_all(rhs) - Represents the return type of
.into_boxed::<'a, DB>() - Represents the return type of
.into_sql() - Is
sqliteThe return type oflhs.is(rhs). - IsContained
By postgres_backendThe return type oflhs.is_contained_by(rhs) - IsContained
ByJsonb Deprecated postgres_backend - IsContained
ByNet postgres_backendThe return type of [lhs.is_contained_by(rhs)]((super::expression_methods::PgNetExpressionMethods::is_contained_by) for network types - IsContained
ByNet Loose postgres_backendThe return type oflhs.is_contained_by_or_eq(rhs) - IsContained
ByOr Eq postgres_backend - IsDistinct
From postgres_backendThe return type oflhs.is_distinct_from(rhs) - IsNot
sqliteThe return type oflhs.is_not(rhs). - IsNot
Distinct From postgres_backendThe return type oflhs.is_not_distinct_from(rhs) - The return type of
expr.is_not_null() - The return type of
expr.is_null() - Represents the return type of
.left_join(rhs) - Represents the return type of
.left_join(rhs.on(on)) - A query source representing the left outer join between two tables.
- The return type of
lhs.like(rhs) - Like
Binary Deprecated postgres_backend - Represents the return type of
.limit() - Load
Iter Deprecated with-deprecatedand non-without-deprecated - The return type of
lhs.lt(rhs) - The return type of
lhs.le(rhs) - The return type of
lhs.ne_all(rhs) - Represents the return type of
.no_wait() - The return type of
lhs.not_between(lower, upper) - The return type of
lhs.ne(rhs) - NotI
Like postgres_backendThe return type oflhs.not_ilike(rhs) - NotIlike
postgres_backend - The return type of
lhs.not_like(rhs) - NotLike
Binary Deprecated postgres_backend - NotSimilar
To postgres_backendThe return type oflhs.not_similar_to(rhs) - The return type of
expr.nullable() - Represents the return type of
.nullable() - Nulls
First postgres_backendThe return type ofexpr.nulls_first() - Nulls
Last postgres_backendThe return type ofexpr.nulls_last() - Represents the return type of
.offset() - Represents the return type of
rhs.on(on) - The return type of
lhs.or(rhs) - Represents the return type of
.or_filter(predicate) - OrNet
postgres_backendThe return type oflsh.or(rhs)for network types - Represents the return type of
.order(ordering) - Represents the return type of
.order_by(ordering) - The return type of
case_when(...).otherwise(...) - Overlaps
With postgres_backendThe return type oflhs.overlaps_with(rhs) - Overlaps
With Net postgres_backendThe return type oflhs.overlaps_with(rhs)for network types - Range
Contains postgres_backendThe return type oflhs.contains(rhs)for range expressions - Remove
postgres_backend - Remove
ByPath postgres_backend - Remove
ByPath From Jsonb postgres_backendThe return type oflhs.remove_by_path(rhs) - Remove
From Jsonb postgres_backendThe return type oflhs.remove(rhs) - Retrieve
AsObject postgres_backend - Retrieve
AsObject Json postgres_backendThe return type oflhs.retrieve_as_object(rhs) - Retrieve
AsText postgres_backend - Retrieve
AsText Json postgres_backendThe return type oflhs.retrieve_as_text(rhs) - Retrieve
ByPath AsObject postgres_backend - Retrieve
ByPath AsObject Json postgres_backendThe return type oflhs.retrieve_by_path_as_object(rhs) - Retrieve
ByPath AsText postgres_backend - Retrieve
ByPath AsText Json postgres_backendThe return type oflhs.retrieve_by_path_as_text(rhs) - Represents the return type of
InsertStatement::returning,UpdateStatement::returningandDeleteStatement::returning - Represents the return type of
.select(selection) - Represents the return type of
UpdateStatement::set() - Similar
To postgres_backendThe return type oflhs.similar_to(rhs) - Represents the return type of
.single_value() - Represents the return type of
.skip_locked() - The SQL type of an expression
- Represents the return type of
.then_order_by(ordering) - Represents the return type of
.union(rhs) - Represents the return type of
.union_all(rhs) - Represents the return type of
update(lhs).set(rhs) - Represents the return type of
IncompleteInsertStatement::values() - The return type of
case_when(...).when(...) - The return type of
avg(expr) - The return type of
case_when() - The return type of
count(expr) - The return type of
count_distinct() - The return type of
count_star() - The return type of
date(expr) - Represents the return type of
diesel::delete - The return type of
exists(expr) - Represents the return type of
diesel::insert_into - Represents the return type of
diesel::insert_or_ignore_into - The return type of
max(expr) - The return type of
min(expr) - The return type of
not(expr) - Represents the return type of
diesel::replace_into - Represents the return type of
diesel::select(selection) - The return type of
sum(expr)
Attribute Macros§
- Automatically annotates return type of a query fragment function