Hello PostgreSQL-development, Oracle has implementation: select id, amount, sum(DISTINCT amount) over () as total from xx; https://dbfiddle.uk/?rdbms=oracle_18&fiddle=8eeb60183ec9576ddb4b2c9f2874d09f Why this is not possible in PG? https://dbfiddle.uk/?rdbms=postgres_12&fiddle=97c05203af4c927ff9f206e164752767 Why Window-specific functions do not allow DISTINCT to be used within the function argument list.? Which problems are exists? -- Best regards, Eugen Konkov
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