How to return result of a SELECT inside a function in PostgreSQL?

How to return result of a SELECT inside a function in PostgreSQL?

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Store select query's output in one array in postgres

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PostgreSQL IF statement

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Return multiple fields as a record in PostgreSQL with PL/pgSQL

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Difference between language sql and language plpgsql in PostgreSQL functions

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PL/pgSQL checking if a row exists

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How do I get the primary key(s) of a table from Postgres via plpgsql?

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PostgreSQL - Iterate over results of query

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How to write function for optional parameters in postgresql?

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Return setof record (virtual table) from function

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Refactor a PL/pgSQL function to return the output of various SELECT queries

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Function with SQL query has no destination for result data

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How to create sequence if not exists

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Return zero if no record is found

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Is SELECT or INSERT in a function prone to race conditions?

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