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Restrict some cases in parsing numerics in jsonpath

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Jsonpath now accepts integers with leading zeroes and floats starting with
a dot.  However, SQL standard requires to follow JSON specification, which
doesn't allow none of these cases.  Our json[b] datatypes also restrict that.
So, restrict it in jsonpath altogether.

Author: Nikita Glukhov
This commit is contained in:
Alexander Korotkov
2019-04-01 18:09:09 +03:00
parent 0a02e2ae02
commit 2e643501e5
2 changed files with 55 additions and 68 deletions
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6
src/backend/utils/adt/jsonpath_scan.l
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@ -80,9 +80,9 @@ any [^\?\%\$\.\[\]\{\}\(\)\|\&\!\=\<\>\@\#\,\*:\-\+\/\\\"\' \t\n\r\f]
blank [ \t\n\r\f]
digit [0-9]
integer {digit}+
decimal {digit}*\.{digit}+
decimalfail {digit}+\.
integer (0|[1-9]{digit}*)
decimal {integer}\.{digit}+
decimalfail {integer}\.
real ({integer}|{decimal})[Ee][-+]?{digit}+
realfail1 ({integer}|{decimal})[Ee]
realfail2 ({integer}|{decimal})[Ee][-+]