Function call rules in Cloud Dataflow SQL

The following rules apply to all functions unless explicitly indicated otherwise in the function description:

  • For functions that accept numeric types, if one operand is a floating point operand and the other operand is another numeric type, both operands are converted to FLOAT64 before the function is evaluated.
  • If an operand is NULL, the result is NULL, with the exception of the IS operator.

  • For functions that are time zone sensitive (as indicated in the function description), the default time zone, UTC, is used if a time zone is not specified.

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