afedulov opened a new pull request, #25938:
URL: https://github.com/apache/flink/pull/25938
Minor documentation fix.
Verified by:
```sql
-- Casting DECIMAL to BOOLEAN
SELECT CAST(CAST(0.0 AS DECIMAL) AS BOOLEAN) AS decimal_zero,
CAST(CAST(-1.0 AS DECIMAL) AS BOOLEAN) AS decimal_negative,
CAST(CAST(1.0 AS DECIMAL) AS BOOLEAN) AS decimal_positive;
-> FALSE, TRUE, TRUE
-- Casting FLOAT to BOOLEAN
SELECT CAST(CAST(0.0 AS FLOAT) AS BOOLEAN) AS float_zero,
CAST(CAST(-3.14 AS FLOAT) AS BOOLEAN) AS float_negative,
CAST(CAST(3.14 AS FLOAT) AS BOOLEAN) AS float_positive;
-> FALSE, TRUE, TRUE
-- Casting DOUBLE to BOOLEAN
SELECT CAST(CAST(0.0 AS DOUBLE) AS BOOLEAN) AS double_zero,
CAST(CAST(-3.14 AS DOUBLE) AS BOOLEAN) AS double_negative,
CAST(CAST(3.14 AS DOUBLE) AS BOOLEAN) AS double_positive;
-> FALSE, TRUE, TRUE
```
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