| From: | Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Underscores in numeric literals |
| Date: | 2022-12-27 09:15:00 |
| Message-ID: | 84aae844-dc55-a4be-86d9-4f0fa405cc97@enterprisedb.com |
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| Lists: | pgsql-hackers |
Here is a patch to add support for underscores in numeric literals, for
visual grouping, like
1_500_000_000
0b10001000_00000000
0o_1_755
0xFFFF_FFFF
1.618_034
per SQL:202x draft.
This adds support in the lexer as well as in the integer type input
functions.
TODO: float/numeric type input support
I did some performance tests similar to what was done in [0] and didn't
find any problematic deviations. Other tests would be welcome.
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Underscores-in-numeric-literals.patch | text/plain | 26.7 KB |
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