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Asked: 2026-05-10T23:18:52+00:00

If i have a parameterized SQL statement like this: SELECT * FROM table WHERE

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If i have a parameterized SQL statement like this: 

SELECT * FROM table WHERE my_field = :field_value

Does anyone know if PDO will recognize this(see below) as the same SQL statement and use the cache instead of assuming it’s a completely different SQL statement:

SELECT * FROM table WHERE my_field = :new_field_value

So, I guess the question is: if the name of a parameter changes in a parameterized select statement but nothing else changes, will I still get the performance benefit of caching? Or do I have to make sure that the parameter name stays the same?

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1 Answer

  1. If you’re using PDO_MySQL, it rewrites prepared statements into raw SQL on its own before the server even sees them, unless you set PDO::ATTR_EMULATE_PREPARES to false.

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