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GREATEST

The GREATEST and LEAST functions select the largest or smallest value from a list of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for details).

English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.

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Conditional Expressions
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Definition PG 18

The GREATEST and LEAST functions select the largest or smallest value from a list of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for details).

Signatures and overloads

GREATEST(value [, ...])
The GREATEST and LEAST functions select the largest or smallest value from a list of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for details).

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Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:ceb44768ee3ebb780e8db402a91610bef67ba12bcf3fd5185363307720616e20

Text language: en · wiki-repair-20261023:ceb44768ee3ebb780e8db402a91610bef67ba12bcf3fd5185363307720616e20