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Luka Matijević @luka added blog in Coding
2025-05-31 20:25:33 ·

Emulating SQL FILTER with Oracle JSON Aggregate Functions

How to implement FILTER semantics with Oracle JSON aggregate functions A cool standard SQL:2003 feature is the aggregate FILTER clause, which is supported natively by at least these RDBMS: ClickHouse CockroachDB DuckDB Firebird H2 HSQLDB PostgreSQL SQLite Trino YugabyteDB The following aggregate function computes the number of rows per group which satifsy...

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