Module expr

Logical Expressions: Expr

Structs

• AggregateFunction
  Aggregate function
• AggregateUDF
  User Defined Aggregate Function
• Alias
  Alias expression
• Between
  BETWEEN expression
• BinaryExpr
  Binary expression
• Case
  CASE expression
• Cast
  Cast expression
• Exists
  EXISTS expression
• InList
  InList expression
• InSubquery
  IN subquery
• Like
  LIKE expression
• Placeholder
  Placeholder, representing bind parameter values such as $1 or $name.
• PlannedReplaceSelectItem
  The planned expressions for REPLACE
• ScalarFunction
  ScalarFunction expression invokes a built-in scalar function
• 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

Enums

• 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
• WindowFunctionDefinition
  WindowFunction Defines which implementation of an aggregate function DataFusion should call.

Functions

• find_df_window_func
  Find DataFusion’s built-in window function by name.
• 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