Module expr 

Logical Expressions: Expr

Structs

AggregateFunction

Aggregate function

AggregateFunctionParams

Alias

Alias expression

Between

BETWEEN expression

BinaryExpr

Binary expression for Expr::BinaryExpr

Case

CASE expression

Cast

Cast expression

ExceptSelectItemsql

Bigquery EXCEPT information, with at least one column.

Exists

EXISTS expression

ExprListDisplay

Formats a list of &Expr with a custom separator using SQL display format

FieldMetadata

Literal metadata

HigherOrderFunction

Invoke a HigherOrderUDF with a set of arguments

IlikeSelectItemsql

Snowflake ILIKE information.

InList

InList expression

InSubquery

IN subquery

Lambda

A Lambda expression with a set of parameters names and a body

LambdaVariable

A named reference to a lambda parameter which includes it’s own FieldRef, which is used to implement ExprSchemable, for example. It is an option only to make easier for expr_api users to construct lambda variables, but any expression tree or LogicalPlan containing unresolved variables must be resolved before usage with either Expr::resolve_lambda_variables or LogicalPlan::resolve_lambda_variables. The default SQL planner produces already resolved variables and no further resolving is required.

Like

LIKE expression

Placeholder

Placeholder, representing bind parameter values such as $1 or $name.

PlannedReplaceSelectItem

The planned expressions for REPLACE

ReplaceSelectElementsql

Syntax

ScalarFunction

Invoke a ScalarUDF with a set of arguments

SetComparison

Set comparison subquery (e.g. = ANY, > ALL)

Sort

SORT expression

TryCast

TryCast Expression

Unnest

UNNEST expression.

WildcardOptions

Additional options for wildcards, e.g. Snowflake EXCLUDE/RENAME and Bigquery EXCEPT.

WindowFunction

Window function

WindowFunctionParams

Enums

ExcludeSelectItemsql

Snowflake EXCLUDE information.

Expr

Represents logical expressions such as A + 1, or CAST(c1 AS int).

GetFieldAccess

Access a sub field of a nested type, such as Field or List

GroupingSet

Grouping sets

NullTreatment

RenameSelectItemsql

Snowflake RENAME information.

SetQuantifier

Whether the set comparison uses ANY/SOME or ALL

WindowFunctionDefinition

A function used as a SQL window function

Constants

OUTER_REFERENCE_COLUMN_PREFIX

UNNEST_COLUMN_PREFIX

Functions

display_comma_separated

intersect_metadata_for_union

Intersects multiple metadata instances for UNION operations.

physical_name

The name of the column (field) that this Expr will produce in the physical plan. The difference from Expr::schema_name is that top-level columns are unqualified.

schema_name_from_exprs

Get schema_name for Vector of expressions

schema_name_from_sorts

Type Aliases

SchemaFieldMetadata

The metadata used in Field::metadata.