docs/sql-error-conditions-invalid-aggregate-filter-error-class.md

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SQLSTATE: 42903

The FILTER expression <filterExpr> in an aggregate function is invalid.

This error class has the following derived error classes:

CONTAINS_AGGREGATE

Expected a FILTER expression without an aggregation, but found <aggExpr>.

CONTAINS_WINDOW_FUNCTION

Expected a FILTER expression without a window function, but found <windowExpr>.

NON_DETERMINISTIC

Expected a deterministic FILTER expression.

NOT_BOOLEAN

Expected a FILTER expression of the BOOLEAN type.