I am sending a "To" column in request but I get the following error "Validation failed : SYNTAX_ERROR => error occurred while parsing the query [ To1203 ]"

I am sending a "To" column in request but I get the following error "Validation failed : SYNTAX_ERROR => error occurred while parsing the query [ To1203 ]"

I am trying to get data from a Custom Module by using the following query:

Select * From CustomModule

Every time I execute this query I get the following error: "Validation failed : SYNTAX_ERROR => error occurred while parsing the query [ To1203]"

In this custom module I have a custom field called "To". When I remove this column from the query, I am able to get the data successfully. It seems that this column is causing the error.

Note: I am facing this issue only when using COQL.

Could you please take a look at this issue?