MSCEWI3093

NUMBER datatype smaller precision was increased to match scale

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Severity

Low

Description

This issue happens when a NUMBER has a smaller precision than its scale. Snowflake does not support this feature, and this message is used to indicate that the precision's value was increased to maintain equivalence.

Please consider that there are cases where this issue can either stack alongside other known transformations or not happen at all. For example, cases where the scale is replaced by 19 and the former precision is greater than 19; will NOT trigger this EWI.

Example Code

Input Code:

Queries

CREATE TABLE number_data_type_table(
    col1 NUMBER(4, 5)
);

INSERT INTO number_data_type_table (COL1) VALUES(0.00009);
INSERT INTO number_data_type_table (COL1) VALUES(0.000021);
INSERT INTO number_data_type_table (COL1) VALUES(0.012678912);

SELECT * FROM number_data_type_table;

Result

col1   |
-------+
0.00009|
0.00002|
0.01268|

Output Code:

Queries

CREATE OR REPLACE TABLE PUBLIC.number_data_type_table(
col1 NUMBER (5,5) /*** MSC-WARNING - MSCEWI3093 - NUMBER DATATYPE SMALLER PRECISION WAS INCREASED TO MATCH SCALE ***/ /*** MSC-WARNING - MSCEWI1066 - NUMBER TYPE COLUMN MAY NOT BEHAVE SIMILARLY IN SNOWFLAKE ***/

INSERT INTO number_data_type_table (COL1) VALUES(0.00009);
INSERT INTO number_data_type_table (COL1) VALUES(0.000021);
INSERT INTO number_data_type_table (COL1) VALUES(0.012678912);

SELECT * FROM PUBLIC.number_data_type_table;

Result

col1   |
-------+
0.00009|
0.00002|
0.01268|

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