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https://issues.apache.org/jira/browse/IGNITE-13668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey Mashenkov updated IGNITE-13668:
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Description:
Let's extend native support for Numeric types.
* 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(4) are better represented by
{{byte}} and {{short}} and {{int}} types as their fixlen encoding takes exactly
1, 2, 4 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
> Labels: iep-54, ignite-3
>
> Let's extend native support for Numeric types.
> * 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(4) are better represented by
> {{byte}} and {{short}} and {{int}} types as their fixlen encoding takes
> exactly 1, 2, 4 bytes respectively.
> * Decimal is a direct mapping to BigDecimal value.
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