mirrors/postgres
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Just noticed that the grammar actually has no provision for '+' as a

Browse Source 
prefix operator :-(.  Bad enough that we have no implementation of
unary plus, but at least with this fix the grammar will take it.
This commit is contained in:
Tom Lane 2000-03-18 04:32:35 +00:00
parent caa6fc1ba2
commit 15115344f0
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/backend/parser/gram.y
View File

@ -11,7 +11,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.158 2000/03/18 00:33:45 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.159 2000/03/18 04:32:35 tgl Exp $
* *
* HISTORY * HISTORY
* AUTHOR DATE MAJOR EVENT * AUTHOR DATE MAJOR EVENT
@ -4168,6 +4168,8 @@ a_expr: c_expr
* If you add more explicitly-known operators, be sure to add them * If you add more explicitly-known operators, be sure to add them
* also to b_expr and to the MathOp list above. * also to b_expr and to the MathOp list above.
*/ */
| '+' a_expr %prec UMINUS
{ $$ = makeA_Expr(OP, "+", NULL, $2); }
| '-' a_expr %prec UMINUS | '-' a_expr %prec UMINUS
{ $$ = doNegate($2); } { $$ = doNegate($2); }
| '%' a_expr | '%' a_expr
@ -4384,6 +4386,8 @@ b_expr: c_expr
{ $$ = $1; } { $$ = $1; }
| b_expr TYPECAST Typename | b_expr TYPECAST Typename
{ $$ = makeTypeCast($1, $3); } { $$ = makeTypeCast($1, $3); }
| '+' b_expr %prec UMINUS
{ $$ = makeA_Expr(OP, "+", NULL, $2); }
| '-' b_expr %prec UMINUS | '-' b_expr %prec UMINUS
{ $$ = doNegate($2); } { $$ = doNegate($2); }
| '%' b_expr | '%' b_expr
@ -5480,8 +5484,9 @@ mapTargetColumns(List *src, List *dst)
* Do not convert "float", since that is handled elsewhere * Do not convert "float", since that is handled elsewhere
* for FLOAT(p) syntax. * for FLOAT(p) syntax.
* *
* Converting "datetime" to "timestamp" is a temporary expedient for * Converting "datetime" to "timestamp" and "timespan" to "interval"
* pre-7.0 to 7.0 compatibility; it should go away again someday. * is a temporary expedient for pre-7.0 to 7.0 compatibility;
* these should go away someday.
*/ */
static char * static char *
xlateSqlFunc(char *name) xlateSqlFunc(char *name)