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I have a problem with Access97 not working properly when entering new

records using a sub form, i.e. entering a new order/orderlines or masteranddetail tables. The problem is caused by a SQL statement that Access97makesinvolving NULL. The syntax that fails is "column_name" = NULL. Thefollowing attachment was provided by -Jose'-. It contains a very smallenhancement to gram.y that will allow Access97 to work properly with subforms. Can this enhancement be added to release 6.5? <<gram.patch>>Thanks, Michael

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src/backend/parser
- gram.c
- gram.y

2 files changed

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`‎src/backend/parser/gram.c‎`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -242,7 +242,7 @@`
`242`	`242`	`*`
`243`	`243`	`*`
`244`	`244`	`* IDENTIFICATION`
`245`		`- * $Header: /cvsroot/pgsql/src/backend/parser/Attic/gram.c,v 2.76 1999/03/07 03:34:06 momjian Exp $`
	`245`	`+ * $Header: /cvsroot/pgsql/src/backend/parser/Attic/gram.c,v 2.77 1999/03/14 05:14:59 momjian Exp $`
`246`	`246`	`*`
`247`	`247`	`* HISTORY`
`248`	`248`	`* AUTHORDATEMAJOR EVENT`

`‎src/backend/parser/gram.y‎`

Lines changed: 3 additions & 1 deletion

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 2.58 1999/03/07 03:34:10 momjian Exp $`
	`13`	`+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.59 1999/03/14 05:15:08 momjian Exp $`
`14`	`14`	`*`
`15`	`15`	`* HISTORY`
`16`	`16`	`* AUTHORDATEMAJOR EVENT`
`@@ -3702,6 +3702,8 @@ a_expr: attr opt_indirection`
`3702`	`3702`	`{$$ = makeA_Expr(OP, "<", $1, $3); }`
`3703`	`3703`	`\| a_expr '>' a_expr`
`3704`	`3704`	`{$$ = makeA_Expr(OP, ">", $1, $3); }`
	`3705`	`+ \| a_expr '=' NULL_P`
	`3706`	`+ {$$ = makeA_Expr(ISNULL, NULL, $1, NULL); }`
`3705`	`3707`	`\| a_expr '=' a_expr`
`3706`	`3708`	`{$$ = makeA_Expr(OP, "=", $1, $3); }`
`3707`	`3709`	`\| ':' a_expr`

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Commitd13fe29

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2 files changed

2 files changed

`‎src/backend/parser/gram.c‎`

`‎src/backend/parser/gram.y‎`

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