Commitb105324

Thomas G. Lockhart

committed

Fix SUBSTRING(str FROM int TO int) parsing.

1 parent142d42f commitb105324Copy full SHA for b105324

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lines changed

Lines changed: 8 additions & 5 deletions

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@`
`10`	`10`	`*`
`11`	`11`	`*`
`12`	`12`	`* IDENTIFICATION`
`13`		`- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.51 1997/09/25 14:11:42 thomas Exp $`
	`13`	`+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.52 1997/09/26 15:09:11 thomas Exp $`
`14`	`14`	`*`
`15`	`15`	`* HISTORY`
`16`	`16`	`* AUTHORDATEMAJOR EVENT`
`@@ -2938,9 +2938,7 @@ position_expr: attr opt_indirection`
`2938`	`2938`
`2939`	`2939`	`substr_list: expr_list substr_from substr_for`
`2940`	`2940`	`{`
`2941`		`-$$ = $1;`
`2942`		`-if ($2 != NULL) $$ = lappend($$, $2);`
`2943`		`-if ($3 != NULL) $$ = lappend($$, $3);`
	`2941`	`+$$ = nconc(nconc($1,$2),$3);`
`2944`	`2942`	`}`
`2945`	`2943`	`\| /* EMPTY */`
`2946`	`2944`	`{$$ = NIL; }`
`@@ -2949,7 +2947,12 @@ substr_list: expr_list substr_from substr_for`
`2949`	`2947`	`substr_from: FROM expr_list`
`2950`	`2948`	`{$$ = $2; }`
`2951`	`2949`	`\| /* EMPTY */`
`2952`		`-{$$ = NIL; }`
	`2950`	`+{`
	`2951`	`+A_Const *n = makeNode(A_Const);`
	`2952`	`+n->val.type = T_Integer;`
	`2953`	`+n->val.val.ival = 1;`
	`2954`	`+$$ = lcons((Node *)n,NIL);`
	`2955`	`+}`
`2953`	`2956`	`;`
`2954`	`2957`
`2955`	`2958`	`substr_for: FOR expr_list`

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