Fix obsolete comment.

tglsfdc · tglsfdc · commit 887dd041a650 · 2011-02-15T13:27:54.000-05:00
Comment about MaxAllocSize was not updated when the TOAST-header macros
were replaced in 8.3 "varvarlena" changes.  Per report from Frederik Ramm.
diff --git a/src/include/utils/memutils.h b/src/include/utils/memutils.h
@@ -30,7 +30,9 @@
  *		be summarily denied.
  *
  * XXX This is deliberately chosen to correspond to the limiting size
- * of varlena objects under TOAST.	See VARATT_MASK_SIZE in postgres.h.
+ * of varlena objects under TOAST.	See VARSIZE_4B() and related macros
+ * in postgres.h.  Many datatypes assume that any allocatable size can
+ * be represented in a varlena header.
  *
  * XXX Also, various places in aset.c assume they can compute twice an
  * allocation's size without overflow, so beware of raising this.

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,9 @@`
`30`	`30`	`* be summarily denied.`
`31`	`31`	`*`
`32`	`32`	`* XXX This is deliberately chosen to correspond to the limiting size`
`33`		`- * of varlena objects under TOAST. See VARATT_MASK_SIZE in postgres.h.`
	`33`	`+ * of varlena objects under TOAST. See VARSIZE_4B() and related macros`
	`34`	`+ * in postgres.h. Many datatypes assume that any allocatable size can`
	`35`	`+ * be represented in a varlena header.`
`34`	`36`	`*`
`35`	`37`	`* XXX Also, various places in aset.c assume they can compute twice an`
`36`	`38`	`* allocation's size without overflow, so beware of raising this.`