[PATCH 24/25] Introduce _vinyl_deferred_delete system space

[Vladimir Davydov <vdavydov.dev@gmail.com>]

The space is a blackhole. It will be used for writing deferred DELETE
statements generated by vinyl compaction tasks to WAL so that we can
recover deferred DELETEs that hadn't been dumped to disk before the
server was restarted.

Needed for #2129
---
 src/box/bootstrap.snap             | Bin 1540 -> 1605 bytes
 src/box/lua/space.cc               |   2 ++
 src/box/lua/upgrade.lua            |  21 +++++++++++
 src/box/schema.cc                  |  72 ++++++++++++++++++++++++++-----------
 src/box/schema_def.h               |   2 ++
 src/box/vinyl.c                    |  15 ++++++++
 test/app-tap/tarantoolctl.test.lua |   2 +-
 test/box-py/bootstrap.result       |   5 ++-
 test/box/access_misc.result        |   3 ++
 test/box/access_sysview.result     |   2 +-
 test/box/alter.result              |   4 +--
 test/wal_off/alter.result          |   2 +-
 test/xlog/upgrade.result           |   5 ++-
 13 files changed, 108 insertions(+), 27 deletions(-)

diff --git a/src/box/bootstrap.snap b/src/box/bootstrap.snap
index b610828c9c9ae9a22acdd8c150c16c6838b7a273..dd0766a1af6d2aa6577eb48ea3ccc876a5989b4b 100644
GIT binary patch
delta 1600
zcmV-G2EX})48;tP7=JM>GBh+TXEZc7Ic76rV+u)bb97;DV`VxZGBq_fF)}t}EipJS
zG%YkSFfc7*IWl7{Fg7z{V=-Z4Wi&7|3RXjGZ)0mZAbWiZ3e~y`y3Ga40M2jv`c0((
z00000D77#B08kY!0GdD~4oc8gQ2_v7Jir%5=(vCY{|RX2wtw1;q>_zSo~QIMph6SH
zKt!gJkdm06?)@c64FXTjX{eWg+ICbh5T%X;t23>bPxYamS}UcL0?h!!0N4Pe0k%$3
zye}H>VkiV&9D+45*7s|ku>4-PGS}nn%SL{JbeQ`E!4P{yltsYzp#AG=p_b0O^V*BC
zF7yKgWcKvezkka6dKc!Njjm9mAsi`yt&@!H`^sCixq3_g?)>JHu}4$^*g8odMQ)sE
zL8JeLIP1|ygE$sz>m;cGs>96p!)!uqo#YWU`m)z^Uo~p$Bx%08F{Mygbz*&`n$u0H
zWOM3HrHewHN~-SOm{2GbhAI0yA3<!BaVvCAC@Vh;sDBVu`4L4*&JzH2{sgeRMU?|v
zC;6=hGc0d$$m{rdtiq!Iu<N^9Hdx-GSJG62*?vBn7}z>VS0C?eKOeo4b}K@#9$7H2
zMr9V*I?1s=7lQT3@=6+`Ac#w_uUKYUP|trldo>D!fC$VZqAv$*o#Y5!SSjoG^N>&q
z25g<AzJCvf;R?jDcj1f6zHjGc&(--w+u!=GvrYWYg^1`MeLVMus7nE!&oCb2HkfCl
zEd=h~x4f?%vTCghvdXT<5PKi^nN_57OMh+1<12EnMguD)l+L)A6F0hJVkbujhvJmL
zA)y+f5}^tqtJM^UnNrz0Nh=GIN|{im8<S0U>VIlF8X1#J2PE?$W+tX&>m-3<Ja8Rk
z90wQ~8BEN}h8GPl8C?9jC}428;9|jrYk_I0(DG6%i2{`YHK8OI(gaE+*g8p;mMH^r
z@}rNe$C}Uo?m}~g8U=AMBysGe<{<4xzwC))xLY@$`C#bkfiJik`u^a5-uHVy>pu^S
z>3<CKme3{<zVCOx{+7q{k)j|;=ne#1Cn@U}>v4B)i0VABb&{jZyHOmLHQnj)HQ`mw
zO;^G+s#U4$OsCSROPNaF4UGw9V?%>s3YBp<Ix6I#IB@KZs<WfAVX7fRgPZXpgSN!5
zb&{2Z8kH3W)nV>fkE~mzGcNVw=;#Ovb$?;&BuVr6epuGyO~=+r0;rSDxKxY%;>b%{
zfd$T>_`8VO6%U462xo9LiZxniT&F_k*LO=wQ`kDm5iOQWjBzl>g$mq(#*XKS#ps>r
zg6Cl_7!%WV@sfC5c*tizAB8&qu~pJJ<2n?!PBQ1l3mOesI?wFq<IGG?7=b6K(SKNE
zkP?^y0003{01*a9A;*da5`e%kilZ<JU>F8O2rvo{7y*F5AS56Hs09NAqYq$Ri@=2Q
zn^SU0?7$tk19zDLPcXS|7A2K651YnC&+)Pt0-b=I4#Uq63zL*AOnHplt&3F?)hC9u
zS6aPkLp`%!61t`BSfQt)M|s|%Wq(|89EFUB1<RmBh@S<D?d*lxN`*%B3Z9L=dLAyg
z(Sjx<dh8|Hdk&-+C+E2ZjTTVUF=W6GumCo|4zK_=z&_Yw!RCbY`5b_b-xEd^GUn%E
zh~%?k{yF(ibm;$ZlQ_hD@R=4s!5$i7!vqm@Anyrz23*E9XaEh8*DRgQVSjgV0N-pz
za&hZ|$u0>5?lYW3oL#x^uqy_e!tt1X^qlS+CUk?yYz4UsCFV{tM`8d#X9-Rux+_T|
zY3n`4W>nIM;)VgVnzK&QA0hB{Ee&Fnlyz_$s?9Em#!w3%4h-`|HWkXbH<*YM?}`3B
z1Qa6cFSK9@3C`BFbfb(Nn18h+gw1i0G6qMfzamFw9pn@Bzx-ybPrOYa1JkKbq~ol_
z`z$aE#&Oi`lH$x*&+!XpK<`ZAj!Y(o+?Ji|Nw0$|$=OT*WC`XGk@tiP^&`yZRFYv$
z(@gA82zVGqoiK}wd+$)U4E&OpbR!cyI%6J*-C~xLe#w()a@GEk>^V(*r&WPUO-m#O
y=K9b;Rxp^_zF*hsu14bDtvX3J(`rc2zai@m65FtDt0OJ=DvX{az(x+$5UuS!*y?2f

delta 1534
zcmV<a1p)fS41^4j7=JJ=G%zh^V>dT4F*z~{Np5p=VQyn(Iv_b=V_`LAF*YqTV`gS8
zG-hTvEnzrjFfCy?W;Qf4VP!dGGGq!?Lu_wjYdRo%F*+bOeF_TIx(m9^1&9F7A|rpb
zr2qf`001bpFZ}>e{VM<lJ=RLl7I6XqUp$Ch%_7lYJ_Lj_@PFoXP~+we(A76EO7~<&
z)F3;RA|;uhw(`4WgTRw>I&<{eU?~Ai$VOI~v629dx2JaIm@kx4N&&zCxB$xlBK}6v
zM#}nreKVfmYggvF>;bcooE<&pjzw|&ydgCd;B)Xi4C|Up=iRyONm;Mu=<J|49rmyj
z!~XSg?^aVP(0>n31mId~$~K1OP2OJJrGIzc!y|v*5Q}mxHFpG|K|%#jeQ^A;E^l>*
z3*Bp}NefgxX1+gm^KmUTgDMc1Jsb?P)oZC4!mL!?OgGcvU!7uNP_0u4V%4c@$$Tde
z<JJuBKo=+bJ1@oWHsew%rA$(CR4!bhCq$aiEJ3j}Cx2ttc)M<~yh-n@9Ru2aUZxgY
zOU+j=F>OCDy|bcHe0;hLW1g*=6kJQqvOo9n=`!@rT1v3PA=sEaGtUmrgF1V*+HwF$
z%o|ck2Ck)MDdN~U>lpNk)Rh9)Qd8p>$FU`TvVVQ}JNw3+pEy`&7|(v!cb#wKcU}Xc
zztr*E^M9!-1a3aZxQyRo-mQ)X;JxvQVS5a1E-Z#;*X8(mp!hlb(b=Wn_TxWHa?e&p
z0<NVdiD5jvlVdHR&M*6U`SOA@wvN<F<4PlXstt_|t42g+g<yeLeOP%|b(q;~x1wEl
zEj90~M>ms_NyVg8C=MtXRLX=hZO}2jlujiL*MCw|r<8%iFyl-urCG}bk_A!)lFN(Z
z*9rxd2`ZdQ%ZOz}8m(9>QmHeYBvm9q6rtA9wbTrW=uAh+mpZa8Z9M*WuhEnWw8OPP
z0Ken?`duE+M1Fc0sWuO;rRJ>TPnWxUKDEZdwbU$UUQcC(VtJFR2G>&aT`%TX-lUJ$
zzkkQk8h`!+Ak42Gb5O~I9X_GL4xhR(RGq@`<8YEmeGLBa%Ed{YaV#4wH7X6(wXrob
zRx(mCOfa|?Bo}qm;#z9jPz5?Ii>k-mKV61Bw$iw6MNm)>lUj2vHAVFK{#e#!kBV!l
ziDGG`ab1f2WXaFUg5t{}`TM8d6EBXt_J3uuRg$)9X&lOg&M*+4wU)S+njl=^i<EJZ
zX2ppwLyQ}LBXiMF<cgb*y<$jG_{C2oetkYX_VcpV`IoM<QW}RMaV<4zXt3a^V}T&3
z(OhIq3CsWhfB+}}AqGb&W<?JYfWSD4qc93!7zRWLI0_9I0RX{)ke~>l77Rj$ynhqj
zxeG%W18Ui|uoin^FOJH&6BE><l!R4e54%@5i^3tJ2=RjuhoRy}$qP!PWxP;CvBe2+
zB`AQ$m7GU4)NS@llAFhZ>1-;h#Us!zr2@yPWOP}$xk=>TS*Ej6Q8ZgBx&}sXh}Wym
z;Yvs=Xm6s&oTIkS5VXc28)t^2+kc4qR4r1#;*gdpU~^0s$pG8pm?G)gVGer7p5*j@
zrQSOro_cGm&fR}<@b8h^=iXW!%4reE=RqJFW<g443Z&4$8`^`Azzc12c=p(Su(w)T
z1)jmCmtK6UOn@l~=HxoFllhK1;>sqt`1BcS0HC@As3ba#z^Ko9Pi8avYk$Oa!!S#&
zSx3_!A8xyrpfT#3Y0zk_Hi}Y>p%$pI61F+5M3N&%2xKJAC;$CDD}<6?=$#5uoTZ5Z
zCNj}EgB|fKv=$L@ag>MEJ_76DnN*W1Z`O`MZ9ptwx|K1yxMV1V1(Ltx%(4y7obk4E
zW?=^8GIQ=kv4A0`wS7N1*>`Z!opukPx!_g@c{8|RJi<`!QS!z#<&+X#nnV8V6uo^%
zFL^|hfwSZ-+|LAZ&d5i?Zt>-$tMH_1UnT!Yb{@SussOv@WfJ50JyfLCQd9Bw_N-dh
k2=V>Mm|$S01}gnuSl5<E4okR>OyKJnJxL~`9Mur5?efFfv;Y7A

diff --git a/src/box/lua/space.cc b/src/box/lua/space.cc
index 580e0ea2..6e180ad9 100644
--- a/src/box/lua/space.cc
+++ b/src/box/lua/space.cc
@@ -554,6 +554,8 @@ box_lua_space_init(struct lua_State *L)
 	lua_setfield(L, -2, "VSEQUENCE_ID");
 	lua_pushnumber(L, BOX_SPACE_SEQUENCE_ID);
 	lua_setfield(L, -2, "SPACE_SEQUENCE_ID");
+	lua_pushnumber(L, BOX_VINYL_DEFERRED_DELETE_ID);
+	lua_setfield(L, -2, "VINYL_DEFERRED_DELETE_ID");
 	lua_pushnumber(L, BOX_SYSTEM_ID_MIN);
 	lua_setfield(L, -2, "SYSTEM_ID_MIN");
 	lua_pushnumber(L, BOX_SYSTEM_ID_MAX);
diff --git a/src/box/lua/upgrade.lua b/src/box/lua/upgrade.lua
index 0293f6ef..bdbd7d4a 100644
--- a/src/box/lua/upgrade.lua
+++ b/src/box/lua/upgrade.lua
@@ -964,6 +964,26 @@ local function upgrade_to_1_10_0()
     create_vsequence_space()
 end
 
+--------------------------------------------------------------------------------
+--- Tarantool 1.10.1
+--------------------------------------------------------------------------------
+local function create_vinyl_deferred_delete_space()
+    local _space = box.space[box.schema.SPACE_ID]
+    local _vinyl_deferred_delete = box.space[box.schema.VINYL_DEFERRED_DELETE_ID]
+
+    local format = {}
+    format[1] = {name = 'space_id', type = 'unsigned'}
+    format[2] = {name = 'lsn', type = 'unsigned'}
+    format[3] = {name = 'tuple', type = 'array'}
+
+    log.info("create space _vinyl_deferred_delete")
+    _space:insert{_vinyl_deferred_delete.id, ADMIN, '_vinyl_deferred_delete',
+                  'blackhole', 0, {group_id = 1}, format}
+end
+
+local function upgrade_to_1_10_1()
+    create_vinyl_deferred_delete_space()
+end
 
 local function get_version()
     local version = box.space._schema:get{'version'}
@@ -991,6 +1011,7 @@ local function upgrade(options)
         {version = mkversion(1, 7, 6), func = upgrade_to_1_7_6, auto = false},
         {version = mkversion(1, 7, 7), func = upgrade_to_1_7_7, auto = true},
         {version = mkversion(1, 10, 0), func = upgrade_to_1_10_0, auto = true},
+        {version = mkversion(1, 10, 1), func = upgrade_to_1_10_1, auto = true},
     }
 
     for _, handler in ipairs(handlers) do
diff --git a/src/box/schema.cc b/src/box/schema.cc
index 433f52c0..48644bbe 100644
--- a/src/box/schema.cc
+++ b/src/box/schema.cc
@@ -37,6 +37,7 @@
 #include "scoped_guard.h"
 #include "version.h"
 #include "user.h"
+#include "vclock.h"
 #include <stdio.h>
 /**
  * @module Data Dictionary
@@ -191,29 +192,16 @@ space_cache_replace(struct space *space)
 
 /** A wrapper around space_new() for data dictionary spaces. */
 static void
-sc_space_new(uint32_t id, const char *name, struct key_def *key_def,
-	     struct trigger *replace_trigger,
-	     struct trigger *stmt_begin_trigger)
+do_sc_space_new(uint32_t id, const char *name, const char *engine,
+		const struct space_opts *opts, struct rlist *key_list,
+		struct trigger *replace_trigger,
+		struct trigger *stmt_begin_trigger)
 {
-	struct index_def *index_def = index_def_new(id, /* space id */
-						    0 /* index id */,
-						    "primary", /* name */
-						    strlen("primary"),
-						    TREE /* index type */,
-						    &index_opts_default,
-						    key_def, NULL);
-	if (index_def == NULL)
-		diag_raise();
-	auto index_def_guard =
-		make_scoped_guard([=] { index_def_delete(index_def); });
 	struct space_def *def =
-		space_def_new_xc(id, ADMIN, 0, name, strlen(name), "memtx",
-				 strlen("memtx"), &space_opts_default, NULL, 0);
+		space_def_new_xc(id, ADMIN, 0, name, strlen(name), engine,
+				 strlen(engine), opts, NULL, 0);
 	auto def_guard = make_scoped_guard([=] { space_def_delete(def); });
-	struct rlist key_list;
-	rlist_create(&key_list);
-	rlist_add_entry(&key_list, index_def, link);
-	struct space *space = space_new_xc(def, &key_list);
+	struct space *space = space_new_xc(def, key_list);
 	(void) space_cache_replace(space);
 	if (replace_trigger)
 		trigger_add(&space->on_replace, replace_trigger);
@@ -234,6 +222,40 @@ sc_space_new(uint32_t id, const char *name, struct key_def *key_def,
 	trigger_run_xc(&on_alter_space, space);
 }
 
+static void
+sc_space_new(uint32_t id, const char *name, struct key_def *key_def,
+	     struct trigger *replace_trigger,
+	     struct trigger *stmt_begin_trigger)
+{
+	struct index_def *index_def = index_def_new(id, /* space id */
+						    0 /* index id */,
+						    "primary", /* name */
+						    strlen("primary"),
+						    TREE /* index type */,
+						    &index_opts_default,
+						    key_def, NULL);
+	if (index_def == NULL)
+		diag_raise();
+	auto index_def_guard =
+		make_scoped_guard([=] { index_def_delete(index_def); });
+	struct rlist key_list;
+	rlist_create(&key_list);
+	rlist_add_entry(&key_list, index_def, link);
+	do_sc_space_new(id, name, "memtx", &space_opts_default, &key_list,
+			replace_trigger, stmt_begin_trigger);
+}
+
+static void
+sc_space_new_blackhole(uint32_t id, const char *name, uint32_t group_id,
+		       struct trigger *replace_trigger)
+{
+	struct space_opts opts = space_opts_default;
+	opts.group_id = group_id;
+	RLIST_HEAD(key_list);
+	do_sc_space_new(id, name, "blackhole", &opts, &key_list,
+			replace_trigger, NULL);
+}
+
 uint32_t
 schema_find_id(uint32_t system_space_id, uint32_t index_id,
 	       const char *name, uint32_t len)
@@ -351,6 +373,16 @@ schema_init()
 			 FIELD_TYPE_UNSIGNED, false, NULL, COLL_NONE);
 	sc_space_new(BOX_INDEX_ID, "_index", key_def,
 		     &alter_space_on_replace_index, &on_stmt_begin_index);
+
+	/*
+	 * _vinyl_deferred_delete - blackhole that is needed
+	 * for writing deferred DELETE statements generated by
+	 * vinyl compaction tasks to WAL.
+	 */
+	extern struct trigger on_replace_vinyl_deferred_delete;
+	sc_space_new_blackhole(BOX_VINYL_DEFERRED_DELETE_ID,
+			       "_vinyl_deferred_delete", GROUP_LOCAL,
+			       &on_replace_vinyl_deferred_delete);
 }
 
 void
diff --git a/src/box/schema_def.h b/src/box/schema_def.h
index 2edb8d37..f6704bf8 100644
--- a/src/box/schema_def.h
+++ b/src/box/schema_def.h
@@ -102,6 +102,8 @@ enum {
 	BOX_TRUNCATE_ID = 330,
 	/** Space id of _space_sequence. */
 	BOX_SPACE_SEQUENCE_ID = 340,
+	/** Space if of _vinyl_deferred_delete. */
+	BOX_VINYL_DEFERRED_DELETE_ID = 450,
 	/** End of the reserved range of system spaces. */
 	BOX_SYSTEM_ID_MAX = 511,
 	BOX_ID_NIL = 2147483647
diff --git a/src/box/vinyl.c b/src/box/vinyl.c
index ddaa22bb..340da35b 100644
--- a/src/box/vinyl.c
+++ b/src/box/vinyl.c
@@ -4266,6 +4266,21 @@ vinyl_space_build_index(struct space *src_space, struct index *new_index,
 
 /* }}} Index build */
 
+/* {{{ Deferred DELETE handling */
+
+static void
+vy_deferred_delete_on_replace(struct trigger *trigger, void *event)
+{
+	(void)trigger;
+	(void)event;
+}
+
+struct trigger on_replace_vinyl_deferred_delete = {
+	RLIST_LINK_INITIALIZER, vy_deferred_delete_on_replace, NULL, NULL
+};
+
+/* }}} Deferred DELETE handling */
+
 static const struct engine_vtab vinyl_engine_vtab = {
 	/* .shutdown = */ vinyl_engine_shutdown,
 	/* .create_space = */ vinyl_engine_create_space,
diff --git a/test/app-tap/tarantoolctl.test.lua b/test/app-tap/tarantoolctl.test.lua
index 6946c831..607dbf77 100755
--- a/test/app-tap/tarantoolctl.test.lua
+++ b/test/app-tap/tarantoolctl.test.lua
@@ -338,7 +338,7 @@ do
             check_ctlcat_xlog(test_i, dir, "--from=3 --to=6 --format=json --show-system --replica 1", "\n", 3)
             check_ctlcat_xlog(test_i, dir, "--from=3 --to=6 --format=json --show-system --replica 1 --replica 2", "\n", 3)
             check_ctlcat_xlog(test_i, dir, "--from=3 --to=6 --format=json --show-system --replica 2", "\n", 0)
-            check_ctlcat_snap(test_i, dir, "--space=280", "---\n", 18)
+            check_ctlcat_snap(test_i, dir, "--space=280", "---\n", 19)
             check_ctlcat_snap(test_i, dir, "--space=288", "---\n", 43)
         end)
     end)
diff --git a/test/box-py/bootstrap.result b/test/box-py/bootstrap.result
index 16c2027c..a83f5d06 100644
--- a/test/box-py/bootstrap.result
+++ b/test/box-py/bootstrap.result
@@ -5,7 +5,7 @@ box.space._schema:select{}
 ---
 - - ['cluster', '<cluster uuid>']
   - ['max_id', 511]
-  - ['version', 1, 10, 0]
+  - ['version', 1, 10, 1]
 ...
 box.space._cluster:select{}
 ---
@@ -68,6 +68,9 @@ box.space._space:select{}
         'type': 'unsigned'}]]
   - [340, 1, '_space_sequence', 'memtx', 0, {}, [{'name': 'id', 'type': 'unsigned'},
       {'name': 'sequence_id', 'type': 'unsigned'}, {'name': 'is_generated', 'type': 'boolean'}]]
+  - [450, 1, '_vinyl_deferred_delete', 'blackhole', 0, {'group_id': 1}, [{'name': 'space_id',
+        'type': 'unsigned'}, {'name': 'lsn', 'type': 'unsigned'}, {'name': 'tuple',
+        'type': 'array'}]]
 ...
 box.space._index:select{}
 ---
diff --git a/test/box/access_misc.result b/test/box/access_misc.result
index 2d87fa2d..b2850504 100644
--- a/test/box/access_misc.result
+++ b/test/box/access_misc.result
@@ -807,6 +807,9 @@ box.space._space:select()
         'type': 'unsigned'}]]
   - [340, 1, '_space_sequence', 'memtx', 0, {}, [{'name': 'id', 'type': 'unsigned'},
       {'name': 'sequence_id', 'type': 'unsigned'}, {'name': 'is_generated', 'type': 'boolean'}]]
+  - [450, 1, '_vinyl_deferred_delete', 'blackhole', 0, {'group_id': 1}, [{'name': 'space_id',
+        'type': 'unsigned'}, {'name': 'lsn', 'type': 'unsigned'}, {'name': 'tuple',
+        'type': 'array'}]]
 ...
 box.space._func:select()
 ---
diff --git a/test/box/access_sysview.result b/test/box/access_sysview.result
index 20efd2bb..bc5e069f 100644
--- a/test/box/access_sysview.result
+++ b/test/box/access_sysview.result
@@ -230,7 +230,7 @@ box.session.su('guest')
 ...
 #box.space._vspace:select{}
 ---
-- 19
+- 20
 ...
 #box.space._vindex:select{}
 ---
diff --git a/test/box/alter.result b/test/box/alter.result
index eb7014d8..5eb8229e 100644
--- a/test/box/alter.result
+++ b/test/box/alter.result
@@ -107,7 +107,7 @@ space = box.space[t[1]]
 ...
 space.id
 ---
-- 341
+- 451
 ...
 space.field_count
 ---
@@ -152,7 +152,7 @@ space_deleted
 ...
 space:replace{0}
 ---
-- error: Space '341' does not exist
+- error: Space '451' does not exist
 ...
 _index:insert{_space.id, 0, 'primary', 'tree', 1, 1, 0, 'unsigned'}
 ---
diff --git a/test/wal_off/alter.result b/test/wal_off/alter.result
index afac1e55..f4703395 100644
--- a/test/wal_off/alter.result
+++ b/test/wal_off/alter.result
@@ -28,7 +28,7 @@ end;
 ...
 #spaces;
 ---
-- 65515
+- 65513
 ...
 -- cleanup
 for k, v in pairs(spaces) do
diff --git a/test/xlog/upgrade.result b/test/xlog/upgrade.result
index f02996bb..9862eb43 100644
--- a/test/xlog/upgrade.result
+++ b/test/xlog/upgrade.result
@@ -36,7 +36,7 @@ box.space._schema:select()
 ---
 - - ['cluster', '<server_uuid>']
   - ['max_id', 513]
-  - ['version', 1, 10, 0]
+  - ['version', 1, 10, 1]
 ...
 box.space._space:select()
 ---
@@ -95,6 +95,9 @@ box.space._space:select()
         'type': 'unsigned'}]]
   - [340, 1, '_space_sequence', 'memtx', 0, {}, [{'name': 'id', 'type': 'unsigned'},
       {'name': 'sequence_id', 'type': 'unsigned'}, {'name': 'is_generated', 'type': 'boolean'}]]
+  - [450, 1, '_vinyl_deferred_delete', 'blackhole', 0, {'group_id': 1}, [{'name': 'space_id',
+        'type': 'unsigned'}, {'name': 'lsn', 'type': 'unsigned'}, {'name': 'tuple',
+        'type': 'array'}]]
   - [512, 1, 'distro', 'memtx', 0, {}, [{'name': 'os', 'type': 'str'}, {'name': 'dist',
         'type': 'str'}, {'name': 'version', 'type': 'num'}, {'name': 'time', 'type': 'num'}]]
   - [513, 1, 'temporary', 'memtx', 0, {'temporary': true}, []]
-- 
2.11.0