How to search for text in an array of varchar field in presto?

@jasen 

In Presto, you can search for text in an array of varchar fields by using the UNNEST function to convert the array into a table-like structure with one row per element in the array. Then, you can use the LIKE or CONTAINS functions to search for the desired text in the array elements.

Here's an example query that demonstrates how to search for text in an array of varchar fields in Presto:

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SELECT *
FROM your_table
WHERE EXISTS (
  SELECT 1
  FROM UNNEST(your_array_column) AS element
  WHERE element LIKE '%search_text%'
)

In this query:

• your_table is the name of the table containing the array column you want to search.
• your_array_column is the name of the array column you want to search in.
• element is an alias for the individual elements in the array.
• '%search_text%' is the text you want to search for in the array. You can replace this with the specific text you are looking for.

This query will return all rows where the array column contains at least one element that matches the specified search text.