Module datafusion::logical_expr::expr
source · Expand description
Expr module contains core type definition for Expr
.
Structs
- Aggregate function
- Alias expression
- BETWEEN expression
- Binary expression
- CASE expression
- Cast expression
- Returns the field of a
arrow::array::ListArray
orarrow::array::StructArray
by key - InList expression
- IN subquery
- LIKE expression
- Placeholder
- ScalarFunction expression
- ScalarUDF expression
- SORT expression
- TryCast Expression
- Window function
Enums
Expr
is a central struct of DataFusion’s query API, and represent logical expressions such asA + 1
, orCAST(c1 AS int)
.- Grouping sets See https://www.postgresql.org/docs/current/queries-table-expressions.html#QUERIES-GROUPING-SETS for Postgres definition. See https://spark.apache.org/docs/latest/sql-ref-syntax-qry-select-groupby.html for Apache Spark definition.