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    Categories: Boolean, Datatype

    IS [NOT] FALSE

    Tests whether the input expression is either false or not false. If true in either case, returns a value of true. Alias for the function ISFALSE/ISNOTFALSE.

    Syntax

    IS [NOT] FALSE(boolean_expression boolean) → boolean

    • boolean_expression: The input expression, which must be of type BOOLEAN.

    Examples

    Create a table containing one column of boolean data type 
    CREATE TABLE $scratch.test_table 
  (
    test_column BOOLEAN
  )

-- true, Table created
    Create two rows containing boolean values 
    INSERT INTO $scratch.test_table 
VALUES  (true), 
        (false)

-- Fragment, Records, Path, Metadata, Partition, FileSize, IcebergMetadata, fileschema, PartitionData
-- 0_0, 1, s3://<s3-bucket-path>, , 0, <file-size>, <iceberg-metadata>, <file-schema>, null
    Run the ISFALSE query 
    SELECT ISFALSE(test_column)
FROM $scratch.test_table

-- false 
-- true
    Run the ISNOTFALSE query 
    SELECT ISNOTFALSE(test_column)
FROM $scratch.test_table

-- true 
-- false