SQL JOIN with Array: Combining Tables and Arrays

This SQL query involves two operations:

1. Array Transformation: It selects all rows from table 't' and converts them into arrays. Each array element represents the value of a corresponding column in table 't'.

2. JOIN with Array Elements: The query performs a JOIN operation with table 'ts'. It matches each array element generated from table 't' against every row in table 'ts. If any array element matches a value in a row of 'ts', that row will be included in the result set.

This approach allows you to combine data from two tables by effectively treating rows from one table as array elements and matching them against rows in another table.