Document LWTRANCHE_PARALLEL_HASH_JOIN.

Thomas Munro

Discussion: http://postgr.es/m/CAEepm=3g1hhbFzYkR_QT9RmBvsGX4UaeCtX-4Js8OOEMmFeaSQ@mail.gmail.com

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 82c015806e38a1d5e19a730ef772cae897ddeec2..3bc4de57d5ab86da9ff697102bffc02de36c9166 100644 (file)
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -845,7 +845,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
 
       
        
-        3">LWLock
+        4">LWLock
         ShmemIndexLock
         Waiting to find or allocate space in shared memory.
        
@@ -1121,6 +1121,11 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
          Waiting to choose the next subplan during Parallel Append plan
          execution.
         
+        
+         parallel_hash_join
+         Waiting to allocate or exchange a chunk of memory or update
+         counters during Parallel Hash plan execution.
+        
         
          Lock
          relation

diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c
index 233606b41418125ddc782deb065aff8a86ea39d7..a6fda81feb6c3db165e511746fad63b20d0e2295 100644 (file)
--- a/src/backend/storage/lmgr/lwlock.c
+++ b/src/backend/storage/lmgr/lwlock.c
@@ -520,6 +520,7 @@ RegisterLWLockTranches(void)
                          "shared_tuplestore");
    LWLockRegisterTranche(LWTRANCHE_TBM, "tbm");
    LWLockRegisterTranche(LWTRANCHE_PARALLEL_APPEND, "parallel_append");
+   LWLockRegisterTranche(LWTRANCHE_PARALLEL_HASH_JOIN, "parallel_hash_join");
 
    /* Register named tranches. */
    for (i = 0; i < NamedLWLockTrancheRequests; i++)