Can't ALTER COLUMN TYPE in PostgreSQL “0A000: Cannot alter column ”FIELDA“ of relation ”TABLEA"
Question
Trying to run the below script:
ALTER TABLE SCHEMA.TABLEA
ALTER COLUMN FIELDA TYPE VARCHAR(5)
And I am getting the following error:
0A000: Cannot alter column "FIELDA" of relation "TABLE"
The field is currently an integer and contains no data, only nulls.
1 answers
solution1
0 ACCPTED 2020-05-05 08:53:31
As per the AWS documentation you cannot change the data type of a VARCHAR only the size.
https://docs.aws.amazon.com/redshift/latest/dg/r_ALTER_TABLE.html
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