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Posted to issues@ignite.apache.org by "Alexey Goncharuk (Jira)" <ji...@apache.org> on 2020/11/03 17:42:00 UTC
[jira] [Updated] (IGNITE-13668) Implement Number(n) and Decimal
native types
[ https://issues.apache.org/jira/browse/IGNITE-13668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Goncharuk updated IGNITE-13668:
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Description:
Number( n ) is an {{n}}-bytes two-complement integer signed value encoded in the varlong style (so that Number(4) can be mapped to integer and Number(8) can be mapped to long during (de)serialization). Larger numbers can be represented as {{BigInteger}}. The Number( n ) is a varlen type, so it will take two additional bytes in the varlen table, so types smaller than Number(2) are better represented by {{byte}} and {{short}} types as their fixlen encoding takes exactly 1 and 2 bytes respectively.
Decimal is a direct mapping to BigDecimal value.
was:
Number(n) is an {{n}}-bytes two-complement integer signed value encoded in the varlong style (so that Number(4) can be mapped to integer and Number(8) can be mapped to long during (de)serialization). Larger numbers can be represented as {{BigInteger}}. The Number(n) is a varlen type, so it will take two additional bytes in the varlen table, so types smaller than Number(2) are better represented by {{byte}} and {{short}} types as their fixlen encoding takes exactly 1 and 2 bytes respectively.
Decimal is a direct mapping to BigDecimal value.
> Implement Number(n) and Decimal native types
> --------------------------------------------
>
> Key: IGNITE-13668
> URL: https://issues.apache.org/jira/browse/IGNITE-13668
> Project: Ignite
> Issue Type: Improvement
> Reporter: Alexey Goncharuk
> Priority: Major
>
> Number( n ) is an {{n}}-bytes two-complement integer signed value encoded in the varlong style (so that Number(4) can be mapped to integer and Number(8) can be mapped to long during (de)serialization). Larger numbers can be represented as {{BigInteger}}. The Number( n ) is a varlen type, so it will take two additional bytes in the varlen table, so types smaller than Number(2) are better represented by {{byte}} and {{short}} types as their fixlen encoding takes exactly 1 and 2 bytes respectively.
> Decimal is a direct mapping to BigDecimal value.
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