row level lock and table level locks - Mailing list pgsql-hackers

From Larry Douzie
Subject row level lock and table level locks
Date
Msg-id 20030908024553.3191.qmail@web60208.mail.yahoo.com
Whole thread Raw
Responses Re: row level lock and table level locks  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
>A row lock is represented by storing the locking transaction's ID in
xmax and setting
>the HEAP_MARKED_FOR_UPDATE infomask bit. The bit is
needed to distinguish
 >this from the case where the transaction is
deleting the tuple.

Is there a similar bit modified if the row in question is being waited
upon by some transaction?


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