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Allow underscores in integer and numeric constants.

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This allows underscores to be used in integer and numeric literals,
and their corresponding type input functions, for visual grouping.
For example:

    1_500_000_000
    3.14159_26535_89793
    0xffff_ffff
    0b_1001_0001

A single underscore is allowed between any 2 digits, or immediately
after the base prefix indicator of non-decimal integers, per SQL:202x
draft.

Peter Eisentraut and Dean Rasheed

Discussion: https://postgr.es/m/84aae844-dc55-a4be-86d9-4f0fa405cc97%40enterprisedb.com
This commit is contained in:
Dean Rasheed
2023-02-04 09:48:51 +00:00
parent 1b6f632a35
commit faff8f8e47
22 changed files with 712 additions and 172 deletions
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2
src/pl/plpgsql/src/expected/plpgsql_trap.out
View File

@ -141,7 +141,7 @@ begin
declare x int;
begin
-- we assume this will take longer than 1 second:
select count(*) into x from generate_series(1, 1000000000000);
select count(*) into x from generate_series(1, 1_000_000_000_000);
exception
when others then
raise notice 'caught others?';

2
src/pl/plpgsql/src/sql/plpgsql_trap.sql
View File

@ -88,7 +88,7 @@ begin
declare x int;
begin
-- we assume this will take longer than 1 second:
select count(*) into x from generate_series(1, 1000000000000);
select count(*) into x from generate_series(1, 1_000_000_000_000);
exception
when others then
raise notice 'caught others?';