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| author | Dean Rasheed <dean.a.rasheed@gmail.com> | 2023-02-04 09:48:51 +0000 |
|---|---|---|
| committer | Dean Rasheed <dean.a.rasheed@gmail.com> | 2023-02-04 09:48:51 +0000 |
| commit | faff8f8e47f18c7d589453e2e0d841d2bd96c1ac (patch) | |
| tree | 84c64f4f9cb6e7713d955f8b3193ff84b42c8cee /src/interfaces | |
| parent | 1b6f632a35f8715f8c64e7930adebc7f1d292074 (diff) | |
| download | postgresql-faff8f8e47f18c7d589453e2e0d841d2bd96c1ac.tar.gz | |
Allow underscores in integer and numeric constants.
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
Diffstat (limited to 'src/interfaces')
| -rw-r--r-- | src/interfaces/ecpg/preproc/pgc.l | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/interfaces/ecpg/preproc/pgc.l b/src/interfaces/ecpg/preproc/pgc.l index 75815bddb7..dcd567e8c3 100644 --- a/src/interfaces/ecpg/preproc/pgc.l +++ b/src/interfaces/ecpg/preproc/pgc.l @@ -361,19 +361,19 @@ hexdigit [0-9A-Fa-f] octdigit [0-7] bindigit [0-1] -decinteger {decdigit}+ -hexinteger 0[xX]{hexdigit}+ -octinteger 0[oO]{octdigit}+ -bininteger 0[bB]{bindigit}+ +decinteger {decdigit}(_?{decdigit})* +hexinteger 0[xX](_?{hexdigit})+ +octinteger 0[oO](_?{octdigit})+ +bininteger 0[bB](_?{bindigit})+ -hexfail 0[xX] -octfail 0[oO] -binfail 0[bB] +hexfail 0[xX]_? +octfail 0[oO]_? +binfail 0[bB]_? numeric (({decinteger}\.{decinteger}?)|(\.{decinteger})) numericfail {decdigit}+\.\. -real ({decinteger}|{numeric})[Ee][-+]?{decdigit}+ +real ({decinteger}|{numeric})[Ee][-+]?{decinteger} realfail ({decinteger}|{numeric})[Ee][-+] decinteger_junk {decinteger}{ident_start} |