bool_and aggregate function

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime

Returns true if all values in expr are true within the group. This function is a synonym for every aggregate function.

Syntax 

bool_and(expr) [FILTER ( WHERE cond ) ]

This function can also be invoked as a window function using the OVER clause.

Arguments

  • expr: A BOOLEAN expression.

  • cond: An optional boolean expression filtering the rows used for aggregation.

Returns

A BOOLEAN.

Examples 

> SELECT bool_and(col) FROM VALUES (true), (true), (true) AS tab(col);
 true

> SELECT bool_and(col) FROM VALUES (NULL), (true), (true) AS tab(col);
 true

> SELECT bool_and(col) FROM VALUES (true), (false), (true) AS tab(col);
 false