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> It seems there is a mistake in substr function:

> then you try get substr, which consists only of last char in string> you get all string>> For example:> userbase=> select substr('123456', 6,1) ;> substr> ------> 123456> (1 row)>From Edmund Mergl <E.Mergl@bawue.de>

1 parentfc79509 commitf0445dcCopy full SHA for f0445dc

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src/backend/utils/adt
- oracle_compat.c

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`‎src/backend/utils/adt/oracle_compat.c`

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,7 @@`
`1`	`1`	`/*`
`2`	`2`	`*Edmund Mergl <E.Mergl@bawue.de>`
`3`	`3`	`*`
`4`		`- *$Id: oracle_compat.c,v 1.10 1997/09/08 21:48:39 momjian Exp $`
	`4`	`+ *$Id: oracle_compat.c,v 1.11 1998/01/13 03:49:51 scrappy Exp $`
`5`	`5`	`*`
`6`	`6`	`*/`
`7`	`7`
`@@ -512,7 +512,7 @@ substr(text *string, int4 m, int4 n)`
`512`	`512`
`513`	`513`	`if ((string== (text*)NULL)\|\|`
`514`	`514`	`(m <=0)\|\| (n <=0)\|\|`
`515`		`-((len=VARSIZE(string)-VARHDRSZ-m) <=0))`
	`515`	`+((len=VARSIZE(string)-VARHDRSZ-m+1) <=0))`
`516`	`516`	`returnstring;`
`517`	`517`
`518`	`518`	`len=len+1<n ?len+1 :n;`

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Commitf0445dc

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`‎src/backend/utils/adt/oracle_compat.c`

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