diff --git a/src/Expr.cc b/src/Expr.cc
index 8d81be851b..f63277b936 100644
--- a/src/Expr.cc
+++ b/src/Expr.cc
@@ -31,7 +31,7 @@ const char* expr_name(BroExprTag t)
 		"table()", "set()", "vector()",
 		"$=", "in", "<<>>",
 		"()", "event", "schedule",
-		"coerce", "record_coerce", "table_coerce",
+		"coerce", "record_coerce", "table_coerce", "vector_coerce",
 		"sizeof", "flatten", "cast", "is", "[:]="
 	};
 
diff --git a/testing/btest/Baseline/plugins.hooks/output b/testing/btest/Baseline/plugins.hooks/output
index 9b70daf0c8..30c032a1b7 100644
--- a/testing/btest/Baseline/plugins.hooks/output
+++ b/testing/btest/Baseline/plugins.hooks/output
@@ -274,7 +274,7 @@
 0.000000   MetaHookPost  CallFunction(Log::__create_stream, <frame>, (Weird::LOG, [columns=Weird::Info, ev=Weird::log_weird, path=weird])) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::__create_stream, <frame>, (X509::LOG, [columns=X509::Info, ev=X509::log_x509, path=x509])) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::__create_stream, <frame>, (mysql::LOG, [columns=MySQL::Info, ev=MySQL::log_mysql, path=mysql])) -> <no result>
-0.000000   MetaHookPost  CallFunction(Log::__write, <frame>, (PacketFilter::LOG, [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T])) -> <no result>
+0.000000   MetaHookPost  CallFunction(Log::__write, <frame>, (PacketFilter::LOG, [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T])) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::add_default_filter, <frame>, (Broker::LOG)) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::add_default_filter, <frame>, (Cluster::LOG)) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::add_default_filter, <frame>, (Config::LOG)) -> <no result>
@@ -455,7 +455,7 @@
 0.000000   MetaHookPost  CallFunction(Log::create_stream, <frame>, (Weird::LOG, [columns=Weird::Info, ev=Weird::log_weird, path=weird])) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::create_stream, <frame>, (X509::LOG, [columns=X509::Info, ev=X509::log_x509, path=x509])) -> <no result>
 0.000000   MetaHookPost  CallFunction(Log::create_stream, <frame>, (mysql::LOG, [columns=MySQL::Info, ev=MySQL::log_mysql, path=mysql])) -> <no result>
-0.000000   MetaHookPost  CallFunction(Log::write, <frame>, (PacketFilter::LOG, [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T])) -> <no result>
+0.000000   MetaHookPost  CallFunction(Log::write, <frame>, (PacketFilter::LOG, [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T])) -> <no result>
 0.000000   MetaHookPost  CallFunction(NetControl::check_plugins, <frame>, ()) -> <no result>
 0.000000   MetaHookPost  CallFunction(NetControl::init, <null>, ()) -> <no result>
 0.000000   MetaHookPost  CallFunction(Notice::want_pp, <frame>, ()) -> <no result>
@@ -549,7 +549,7 @@
 0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::STD_DEV, anonymous-function{ SumStats::calc_std_dev(SumStats::rv)})) -> <no result>
 0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::SUM, anonymous-function{ SumStats::rv$sum += SumStats::val})) -> <no result>
 0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::TOPK, anonymous-function{ topk_add(SumStats::rv$topk, SumStats::obs)})) -> <no result>
-0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::UNIQUE, anonymous-function{ if (!SumStats::rv?$unique_vals) SumStats::rv$unique_vals = (coerce set() to set[SumStats::Observation])if (SumStats::r?$unique_max) SumStats::rv$unique_max = SumStats::r$unique_maxif (!SumStats::r?$unique_max || flattenSumStats::rv$unique_vals <= SumStats::r$unique_max) add SumStats::rv$unique_vals[SumStats::obs]SumStats::rv$unique = flattenSumStats::rv$unique_vals})) -> <no result>
+0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::UNIQUE, anonymous-function{ if (!SumStats::rv?$unique_vals) SumStats::rv$unique_vals = (coerce set() to set[SumStats::Observation])if (SumStats::r?$unique_max) SumStats::rv$unique_max = SumStats::r$unique_maxif (!SumStats::r?$unique_max || sizeofSumStats::rv$unique_vals <= SumStats::r$unique_max) add SumStats::rv$unique_vals[SumStats::obs]SumStats::rv$unique = sizeofSumStats::rv$unique_vals})) -> <no result>
 0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::VARIANCE, anonymous-function{ if (1 < SumStats::rv$num) SumStats::rv$var_s += ((SumStats::val - SumStats::rv$prev_avg) * (SumStats::val - SumStats::rv$average))SumStats::calc_variance(SumStats::rv)SumStats::rv$prev_avg = SumStats::rv$average})) -> <no result>
 0.000000   MetaHookPost  CallFunction(SumStats::register_observe_plugins, <frame>, ()) -> <no result>
 0.000000   MetaHookPost  CallFunction(current_time, <frame>, ()) -> <no result>
@@ -1164,7 +1164,7 @@
 0.000000   MetaHookPre   CallFunction(Log::__create_stream, <frame>, (Weird::LOG, [columns=Weird::Info, ev=Weird::log_weird, path=weird]))
 0.000000   MetaHookPre   CallFunction(Log::__create_stream, <frame>, (X509::LOG, [columns=X509::Info, ev=X509::log_x509, path=x509]))
 0.000000   MetaHookPre   CallFunction(Log::__create_stream, <frame>, (mysql::LOG, [columns=MySQL::Info, ev=MySQL::log_mysql, path=mysql]))
-0.000000   MetaHookPre   CallFunction(Log::__write, <frame>, (PacketFilter::LOG, [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T]))
+0.000000   MetaHookPre   CallFunction(Log::__write, <frame>, (PacketFilter::LOG, [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T]))
 0.000000   MetaHookPre   CallFunction(Log::add_default_filter, <frame>, (Broker::LOG))
 0.000000   MetaHookPre   CallFunction(Log::add_default_filter, <frame>, (Cluster::LOG))
 0.000000   MetaHookPre   CallFunction(Log::add_default_filter, <frame>, (Config::LOG))
@@ -1345,7 +1345,7 @@
 0.000000   MetaHookPre   CallFunction(Log::create_stream, <frame>, (Weird::LOG, [columns=Weird::Info, ev=Weird::log_weird, path=weird]))
 0.000000   MetaHookPre   CallFunction(Log::create_stream, <frame>, (X509::LOG, [columns=X509::Info, ev=X509::log_x509, path=x509]))
 0.000000   MetaHookPre   CallFunction(Log::create_stream, <frame>, (mysql::LOG, [columns=MySQL::Info, ev=MySQL::log_mysql, path=mysql]))
-0.000000   MetaHookPre   CallFunction(Log::write, <frame>, (PacketFilter::LOG, [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T]))
+0.000000   MetaHookPre   CallFunction(Log::write, <frame>, (PacketFilter::LOG, [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T]))
 0.000000   MetaHookPre   CallFunction(NetControl::check_plugins, <frame>, ())
 0.000000   MetaHookPre   CallFunction(NetControl::init, <null>, ())
 0.000000   MetaHookPre   CallFunction(Notice::want_pp, <frame>, ())
@@ -1439,7 +1439,7 @@
 0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::STD_DEV, anonymous-function{ SumStats::calc_std_dev(SumStats::rv)}))
 0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::SUM, anonymous-function{ SumStats::rv$sum += SumStats::val}))
 0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::TOPK, anonymous-function{ topk_add(SumStats::rv$topk, SumStats::obs)}))
-0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::UNIQUE, anonymous-function{ if (!SumStats::rv?$unique_vals) SumStats::rv$unique_vals = (coerce set() to set[SumStats::Observation])if (SumStats::r?$unique_max) SumStats::rv$unique_max = SumStats::r$unique_maxif (!SumStats::r?$unique_max || flattenSumStats::rv$unique_vals <= SumStats::r$unique_max) add SumStats::rv$unique_vals[SumStats::obs]SumStats::rv$unique = flattenSumStats::rv$unique_vals}))
+0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::UNIQUE, anonymous-function{ if (!SumStats::rv?$unique_vals) SumStats::rv$unique_vals = (coerce set() to set[SumStats::Observation])if (SumStats::r?$unique_max) SumStats::rv$unique_max = SumStats::r$unique_maxif (!SumStats::r?$unique_max || sizeofSumStats::rv$unique_vals <= SumStats::r$unique_max) add SumStats::rv$unique_vals[SumStats::obs]SumStats::rv$unique = sizeofSumStats::rv$unique_vals}))
 0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugin, <frame>, (SumStats::VARIANCE, anonymous-function{ if (1 < SumStats::rv$num) SumStats::rv$var_s += ((SumStats::val - SumStats::rv$prev_avg) * (SumStats::val - SumStats::rv$average))SumStats::calc_variance(SumStats::rv)SumStats::rv$prev_avg = SumStats::rv$average}))
 0.000000   MetaHookPre   CallFunction(SumStats::register_observe_plugins, <frame>, ())
 0.000000   MetaHookPre   CallFunction(current_time, <frame>, ())
@@ -2053,7 +2053,7 @@
 0.000000 | HookCallFunction Log::__create_stream(Weird::LOG, [columns=Weird::Info, ev=Weird::log_weird, path=weird])
 0.000000 | HookCallFunction Log::__create_stream(X509::LOG, [columns=X509::Info, ev=X509::log_x509, path=x509])
 0.000000 | HookCallFunction Log::__create_stream(mysql::LOG, [columns=MySQL::Info, ev=MySQL::log_mysql, path=mysql])
-0.000000 | HookCallFunction Log::__write(PacketFilter::LOG, [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T])
+0.000000 | HookCallFunction Log::__write(PacketFilter::LOG, [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T])
 0.000000 | HookCallFunction Log::add_default_filter(Broker::LOG)
 0.000000 | HookCallFunction Log::add_default_filter(Cluster::LOG)
 0.000000 | HookCallFunction Log::add_default_filter(Config::LOG)
@@ -2234,7 +2234,7 @@
 0.000000 | HookCallFunction Log::create_stream(Weird::LOG, [columns=Weird::Info, ev=Weird::log_weird, path=weird])
 0.000000 | HookCallFunction Log::create_stream(X509::LOG, [columns=X509::Info, ev=X509::log_x509, path=x509])
 0.000000 | HookCallFunction Log::create_stream(mysql::LOG, [columns=MySQL::Info, ev=MySQL::log_mysql, path=mysql])
-0.000000 | HookCallFunction Log::write(PacketFilter::LOG, [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T])
+0.000000 | HookCallFunction Log::write(PacketFilter::LOG, [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T])
 0.000000 | HookCallFunction NetControl::check_plugins()
 0.000000 | HookCallFunction NetControl::init()
 0.000000 | HookCallFunction Notice::want_pp()
@@ -2328,7 +2328,7 @@
 0.000000 | HookCallFunction SumStats::register_observe_plugin(SumStats::STD_DEV, anonymous-function{ SumStats::calc_std_dev(SumStats::rv)})
 0.000000 | HookCallFunction SumStats::register_observe_plugin(SumStats::SUM, anonymous-function{ SumStats::rv$sum += SumStats::val})
 0.000000 | HookCallFunction SumStats::register_observe_plugin(SumStats::TOPK, anonymous-function{ topk_add(SumStats::rv$topk, SumStats::obs)})
-0.000000 | HookCallFunction SumStats::register_observe_plugin(SumStats::UNIQUE, anonymous-function{ if (!SumStats::rv?$unique_vals) SumStats::rv$unique_vals = (coerce set() to set[SumStats::Observation])if (SumStats::r?$unique_max) SumStats::rv$unique_max = SumStats::r$unique_maxif (!SumStats::r?$unique_max || flattenSumStats::rv$unique_vals <= SumStats::r$unique_max) add SumStats::rv$unique_vals[SumStats::obs]SumStats::rv$unique = flattenSumStats::rv$unique_vals})
+0.000000 | HookCallFunction SumStats::register_observe_plugin(SumStats::UNIQUE, anonymous-function{ if (!SumStats::rv?$unique_vals) SumStats::rv$unique_vals = (coerce set() to set[SumStats::Observation])if (SumStats::r?$unique_max) SumStats::rv$unique_max = SumStats::r$unique_maxif (!SumStats::r?$unique_max || sizeofSumStats::rv$unique_vals <= SumStats::r$unique_max) add SumStats::rv$unique_vals[SumStats::obs]SumStats::rv$unique = sizeofSumStats::rv$unique_vals})
 0.000000 | HookCallFunction SumStats::register_observe_plugin(SumStats::VARIANCE, anonymous-function{ if (1 < SumStats::rv$num) SumStats::rv$var_s += ((SumStats::val - SumStats::rv$prev_avg) * (SumStats::val - SumStats::rv$average))SumStats::calc_variance(SumStats::rv)SumStats::rv$prev_avg = SumStats::rv$average})
 0.000000 | HookCallFunction SumStats::register_observe_plugins()
 0.000000 | HookCallFunction current_time()
@@ -2663,7 +2663,7 @@
 0.000000 | HookLoadFile  base<...>/xmpp
 0.000000 | HookLoadFile  base<...>/zeek.bif.zeek
 0.000000 | HookLogInit   packet_filter 1/1 {ts (time), node (string), filter (string), init (bool), success (bool)}
-0.000000 | HookLogWrite  packet_filter [ts=1561684839.152939, node=zeek, filter=ip or not ip, init=T, success=T]
+0.000000 | HookLogWrite  packet_filter [ts=1563503609.682282, node=zeek, filter=ip or not ip, init=T, success=T]
 0.000000 | HookQueueEvent NetControl::init()
 0.000000 | HookQueueEvent filter_change_tracking()
 0.000000 | HookQueueEvent zeek_init()