Update FAQ.

diff --git a/doc/FAQ b/doc/FAQ
index fae3bbe9a57762998627791a0eb7aef8ab1d454a..91d441d583e31286366aa27e32adfe8615765682 100644 (file)
--- a/doc/FAQ
+++ b/doc/FAQ
@@ -900,6 +900,10 @@ BYTEA           bytea           variable-length array of bytes
         DELETE FROM new;
         COPY new WITH OIDS FROM '/tmp/pgtable';
 
+   OIDs are stored as 4-byte integers, and will overflow at 4 billion. No
+   one has reported this every happening, and we plan to have the limit
+   removed before anyone does.
+   
    TIDs are used to identify specific physical rows with block and offset
    values. Tids change after rows are modified or reloaded. They are used
    by index entries to point to physical rows.

diff --git a/doc/src/FAQ/FAQ.html b/doc/src/FAQ/FAQ.html
index 8206819c631110e87cd8a0b084b36f8d74bfcfc6..ea94fb6410c18875f63345a85fb368e57766dbb5 100644 (file)
--- a/doc/src/FAQ/FAQ.html
+++ b/doc/src/FAQ/FAQ.html
@@ -1095,6 +1095,10 @@ no reason you can't do it:
 -->
 </PRE><P>
 
+O<small>ID</small>s are stored as 4-byte integers, and will overflow
+at 4 billion. No one has reported this every happening, and we plan to
+have the limit removed before anyone does.<P>
+
 T<small>ID</small>s are used to identify specific physical rows with block and offset
 values.  Tids change after rows are modified or reloaded.  They are used
 by index entries to point to physical rows.<P>