[5.2.x] Fixed #36748 -- Filtered non-standard placeholders from UNNEST queries.

Backport of 5834643f43a767fe19f2c6d10217b204e7584ec8 from main.

1 files changed, 5 insertions, 0 deletions

diff --git a/django/db/backends/postgresql/compiler.py b/django/db/backends/postgresql/compiler.py
index 344773fb7a..dc2db148ae 100644
--- a/django/db/backends/postgresql/compiler.py
+++ b/django/db/backends/postgresql/compiler.py
@@ -36,6 +36,11 @@ class SQLInsertCompiler(BaseSQLInsertCompiler):
             # Lack of fields denote the usage of the DEFAULT keyword
             # for the insertion of empty rows.
             or any(field is None for field in fields)
+            # Field.get_placeholder takes value as an argument, so the
+            # resulting placeholder might be dependent on the value.
+            # in UNNEST requires a single placeholder to "fit all values" in
+            # the array.
+            or any(hasattr(field, "get_placeholder") for field in fields)
             # Fields that don't use standard internal types might not be
             # unnest'able (e.g. array and geometry types are known to be
             # problematic).