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The following commit(s) were added to refs/heads/branch-1.2-lts by this push:
new f5aa4f91fa [cherry-pick](flex) support scientific notation(aEb) parser
(#22345)
f5aa4f91fa is described below
commit f5aa4f91fab139ae697a9d421f6852941d5c4a7f
Author: zhangstar333 <[email protected]>
AuthorDate: Fri Jul 28 17:24:26 2023 +0800
[cherry-pick](flex) support scientific notation(aEb) parser (#22345)
---
fe/fe-core/src/main/jflex/sql_scanner.flex | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/fe/fe-core/src/main/jflex/sql_scanner.flex
b/fe/fe-core/src/main/jflex/sql_scanner.flex
index 597c23eec1..52dcdd5e8d 100644
--- a/fe/fe-core/src/main/jflex/sql_scanner.flex
+++ b/fe/fe-core/src/main/jflex/sql_scanner.flex
@@ -597,7 +597,8 @@ FLit1 = [0-9]+ \. [0-9]*
FLit2 = \. [0-9]+
FLit3 = [0-9]+
Exponent = [eE] [+-]? [0-9]+
-DoubleLiteral = ({FLit1}|{FLit2}|{FLit3}) {Exponent}?
+DoubleLiteral = ({FLit1}|{FLit2}|{FLit3})
+ExponentLiteral = ({FLit1}|{FLit2}|{FLit3}) {Exponent}
EolHintBegin = "--" " "* "+"
CommentedHintBegin = "/*" " "* "+"
@@ -656,6 +657,17 @@ EndOfLineComment = "--"
!({HintContent}|{ContainsLineTerminator}) {LineTerminato
"'" { return newToken(SqlParserSymbols.UNMATCHED_STRING_LITERAL, null); }
"`" { return newToken(SqlParserSymbols.UNMATCHED_STRING_LITERAL, null); }
+{ExponentLiteral} {
+ BigDecimal decimal_val;
+ try {
+ decimal_val = new BigDecimal(yytext());
+ } catch (NumberFormatException e) {
+ return newToken(SqlParserSymbols.NUMERIC_OVERFLOW, yytext());
+ }
+
+ return newToken(SqlParserSymbols.DECIMAL_LITERAL, decimal_val);
+ }
+
{QuotedIdentifier} {
// Remove the quotes
String trimmedIdent = yytext().substring(1, yytext().length() - 1);
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