Presto array contains an element that likes some pattern

Question

For example, one column in my table is an array, I want to check if that column contains an element that contains substring \"denied\" (so elements like \"denied at 12:00 pm\",

Answer 1

See array operator docs here

contains(array_column,'denied')

Answer 2

Use presto's array functions:

• filter(), which returns elements that satisfy the given condition
• cardinality(), which returns the size of an array:

Like this:

where cardinality(filter(myArray, x -> x like '%denied%')) > 0