The following section

http://www.ca.postgresql.org/devel-corner/docs/postgres/locking-tables.html

titled "Locking and Tables", has two subsections, "Table-level locks" and
"Row-level locks".  Under table-level locks we find lock names such as
RowShareLock and RowExclusiveLock -- are those table-level locks?  Under
row-level locks we find no specific lock names mentioned.

What I wonder is, if I do

BEGIN;
LOCK table1 IN ROW EXCLUSIVE MODE;

what do I lock?  The table?  A row?  Which row?

Clarification appreciated.

-- 
Peter Eisentraut   peter_e(at)gmx(dot)net   http://funkturm.homeip.net/~peter

Responses

• Re: Table vs. row level locks confusion at 2001-09-04 15:01:08 from Tom Lane

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