MSCEWI3036

Types resolution issues, the arithmetic operation may not behave correctly between string and date.

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Severity

Low

Description

This issue happens when an arithmetic operation may not behave correctly between two certain data types.

Example Code

Input Code:

-- Given the following table
CREATE TABLE TIMES(
AsDate Date,
AsIntervalDaySecond varchar(20)
);

-- An arithmetic operation between two data types that may not behave correctly
SELECT TIMES.AsIntervalYearMonth + TIMES.AsDate FROM TIMES;

Output Code:

-- Given the following table
CREATE OR REPLACE TABLE PUBLIC.TIMES (
AsDate Date,
AsIntervalDaySecond varchar(20));

-- An arithmetic operation between two data types that may not behave correctly
SELECT

/*** MSC-WARNING - MSCEWI3036 - TYPES RESOLUTION ISSUES, ARITHMETIC OPERATION '+' MAY NOT BEHAVE CORRECTLY BETWEEN String AND Date ***/
 TIMES.AsIntervalDaySecond + TIMES.AsDate FROM PUBLIC.TIMES;

Note that the operation between a String and Date may not behave correctly.

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