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https://issues.apache.org/jira/browse/SPARK-34944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kent Yao reassigned SPARK-34944:
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Assignee: Kent Yao
> Employ correct data type for web_returns and store_returns in TPCDS tests
> -------------------------------------------------------------------------
>
> Key: SPARK-34944
> URL: https://issues.apache.org/jira/browse/SPARK-34944
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Kent Yao
> Assignee: Kent Yao
> Priority: Major
>
> {noformat}
> 2.2.2 Datatype
> 2.2.2.1 Each column employs one of the following datatypes:
> a) Identifier means that the column shall be able to hold any key value
> generated for that column.
> b) Integer means that the column shall be able to exactly represent integer
> values (i.e., values in increments of
> 1) in the range of at least ( − 2n − 1) to (2n − 1 − 1), where n is 64.
> c) Decimal(d, f) means that the column shall be able to represent decimal
> values up to and including d digits,
> of which f shall occur to the right of the decimal place; the values can be
> either represented exactly or
> interpreted to be in this range.
> d) Char(N) means that the column shall be able to hold any string of
> characters of a fixed length of N.
> Comment: If the string that a column of datatype char(N) holds is shorter
> than N characters, then trailing
> spaces shall be stored in the database or the database shall automatically
> pad with spaces upon retrieval such
> that a CHAR_LENGTH() function will return N.
> e) Varchar(N) means that the column shall be able to hold any string of
> characters of a variable length with a
> maximum length of N. Columns defined as "varchar(N)" may optionally be
> implemented as "char(N)".
> f) Date means that the column shall be able to express any calendar day
> between January 1, 1900 and
> December 31, 2199.
> 2.2.2.2 The datatypes do not correspond to any specific SQL-standard
> datatype. The definitions are provided to
> highlight the properties that are required for a particular column. The
> benchmark implementer may employ any internal representation or SQL datatype
> that meets those requirements.
> {noformat}
> one thing might be clear that we should replace bigint type which is now used
> in web_returns and store_returns with int type.
> another thing that might need to be further discussed is - shall we use
> bigint to meet 2.2.2.1 b)?
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