ARRAY_REPLACE
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The ARRAY_REPLACE function allows for replacing all occurrences of an element by another value in an array:
SELECT array_replace(ARRAY[1, 2, 2, 3], 2, -1)
create.select(arrayReplace(array(1, 2, 2, 3), val(2), val(-1))).fetch();
The result would look like this:
+----------------+ | array_replace | +----------------+ | [1, -1, -1, 3] | +----------------+
Dialect support
This example using jOOQ:
arrayReplace(array(1, 2, 2, 3), val(2), val(-1))
Translates to the following dialect specific expressions:
Aurora Postgres, CockroachDB, Postgres, YugabyteDB
array_replace( ARRAY[1, 2, 2, 3], 2, -1 )
BigQuery
(
SELECT coalesce(
array_agg(
CASE
WHEN e IS NOT DISTINCT FROM 2 THEN -1
ELSE e
END
),
CAST(ARRAY[] AS Array<int64>)
)
FROM (
SELECT null e
FROM UNNEST([STRUCT(1 AS dual)]) AS dual
WHERE FALSE
UNION ALL
SELECT *
FROM UNNEST(ARRAY[1, 2, 2, 3]) t
) t
)
DuckDB
array_transform(
ARRAY[1, 2, 2, 3],
e -> CASE
WHEN e IS NOT DISTINCT FROM 2 THEN -1
ELSE e
END
)
H2, HSQLDB
(
SELECT coalesce(
array_agg(
CASE
WHEN e IS NOT DISTINCT FROM 2 THEN -1
ELSE e
END
),
CAST(ARRAY[] AS int array)
)
FROM UNNEST(ARRAY[1, 2, 2, 3]) t (e)
)
Trino
transform(
ARRAY[1, 2, 2, 3],
e -> CASE
WHEN e IS NOT DISTINCT FROM 2 THEN -1
ELSE e
END
)
ASE, Access, Aurora MySQL, ClickHouse, DB2, Derby, Exasol, Firebird, Hana, Informix, MariaDB, MemSQL, MySQL, Oracle, Redshift, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Vertica
/* UNSUPPORTED */
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