From db247e41c934c9d3184b1cff417441e8a11a9f30 Mon Sep 17 00:00:00 2001
From: "Stephen R. van den Berg" <srb@cuci.nl>
Date: Mon, 7 May 2018 11:22:41 +0200
Subject: [PATCH] pgsql: Cater for empty start conditions.
---
lib/modules/Sql.pmod/pgsql_util.pmod | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/lib/modules/Sql.pmod/pgsql_util.pmod b/lib/modules/Sql.pmod/pgsql_util.pmod
index e2bc80339b..53db2b201a 100644
--- a/lib/modules/Sql.pmod/pgsql_util.pmod
+++ b/lib/modules/Sql.pmod/pgsql_util.pmod
@@ -1348,9 +1348,10 @@ class sql_result {
private void replenishrows() {
if (_fetchlimit && sizeof(datarows) <= _fetchlimit >> 1) {
- _fetchlimit =
- min((portalbuffersize >> 1) * index / bytesreceived || 1,
- pgsqlsess._fetchlimit);
+ _fetchlimit = pgsqlsess._fetchlimit;
+ if (bytesreceived)
+ _fetchlimit =
+ min((portalbuffersize >> 1) * index / bytesreceived || 1, _fetchlimit);
Thread.MutexKey lock = closemux->lock();
if (_fetchlimit && inflight <= (_fetchlimit - 1) >> 1)
_sendexecute(_fetchlimit);
--
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