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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2000-03-18 04:32:35 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2000-03-18 04:32:35 +0000 |
| commit | 15115344f02576d9671177f8f68bba53c9afa929 (patch) | |
| tree | ae5ab9e01bfd98a2ed3b1e55b802f8ccb72633ad | |
| parent | caa6fc1ba2504863b0e106eb818c2d0e81a5f794 (diff) | |
| download | postgresql-15115344f02576d9671177f8f68bba53c9afa929.tar.gz | |
Just noticed that the grammar actually has no provision for '+' as a
prefix operator :-(. Bad enough that we have no implementation of
unary plus, but at least with this fix the grammar will take it.
| -rw-r--r-- | src/backend/parser/gram.y | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y index 40ad6ffb6c..7508066034 100644 --- a/src/backend/parser/gram.y +++ b/src/backend/parser/gram.y @@ -11,7 +11,7 @@ * * * 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 * AUTHOR DATE MAJOR EVENT @@ -4168,6 +4168,8 @@ a_expr: c_expr * If you add more explicitly-known operators, be sure to add them * also to b_expr and to the MathOp list above. */ + | '+' a_expr %prec UMINUS + { $$ = makeA_Expr(OP, "+", NULL, $2); } | '-' a_expr %prec UMINUS { $$ = doNegate($2); } | '%' a_expr @@ -4384,6 +4386,8 @@ b_expr: c_expr { $$ = $1; } | b_expr TYPECAST Typename { $$ = makeTypeCast($1, $3); } + | '+' b_expr %prec UMINUS + { $$ = makeA_Expr(OP, "+", NULL, $2); } | '-' b_expr %prec UMINUS { $$ = doNegate($2); } | '%' b_expr @@ -5480,8 +5484,9 @@ mapTargetColumns(List *src, List *dst) * Do not convert "float", since that is handled elsewhere * for FLOAT(p) syntax. * - * Converting "datetime" to "timestamp" is a temporary expedient for - * pre-7.0 to 7.0 compatibility; it should go away again someday. + * Converting "datetime" to "timestamp" and "timespan" to "interval" + * is a temporary expedient for pre-7.0 to 7.0 compatibility; + * these should go away someday. */ static char * xlateSqlFunc(char *name) |