Variable SqlConditionTriggerModeConst

The strategy used to evaluate a SQL condition trigger against a query result set.

• SQL_CONDITION_TRIGGER_MODE_UNSPECIFIED: Sentinel zero-value. Not a valid input — the validator rejects this when sent explicitly. Internally treated as QUERY_RETURNS_ROWS when reading legacy data that predates this field.
• QUERY_RETURNS_ROWS: Fires whenever the result set has at least one row. Zero rows means the condition is not met. This is the original SQL condition behavior.
• RESULT_VALUE_CHANGES: Fires whenever the query's single result value differs from the previous evaluation. The first evaluation always fires. Queries must return exactly one cell (one row, one column).