NotificationsYou must be signed in to change notification settings
Fork6
Star31

Commita84c956

committed

Performance improvement for lexing long strings: increase flex's

YY_READ_BUF_SIZE, which turns out to have nothing to do with buffer size.It's just a totally arbitrary upper limit on how much data myinput() isasked for at one time.

1 parent7cb253e commita84c956Copy full SHA for a84c956

File tree

1 file changed

-1

lines changed

src/backend/parser
- scan.l

1 file changed

-1

lines changed

`‎src/backend/parser/scan.l`

Lines changed: 4 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -9,7 +9,7 @@`
`9`	`9`	`*`
`10`	`10`	`*`
`11`	`11`	`* IDENTIFICATION`
`12`		`- * $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.66 2000/03/11 05:14:06 tgl Exp $`
	`12`	`+ * $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.67 2000/03/13 01:52:06 tgl Exp $`
`13`	`13`	`*`
`14`	`14`	`*-------------------------------------------------------------------------`
`15`	`15`	`*/`
`@@ -47,6 +47,9 @@ static int myinput(char* buf, int max);`
`47`	`47`	`#undef YY_INPUT`
`48`	`48`	`#defineYY_INPUT(buf,result,max) {result =myinput(buf,max);}`
`49`	`49`
	`50`	`+/* No reason to constrain amount of data slurped per myinput() call. */`
	`51`	`+#defineYY_READ_BUF_SIZE16777216`
	`52`	`+`
`50`	`53`	`#else/* !FLEX_SCANNER */`
`51`	`54`
`52`	`55`	`#undef input`

0 commit comments

Comments

(0)

Movatterモバイル変換

Navigation Menu

Search code, repositories, users, issues, pull requests...

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Commita84c956

File tree

1 file changed

1 file changed

`‎src/backend/parser/scan.l`

0 commit comments