Doc: tweak examples to silence line-too-long PDF build warnings.

In one or two places it seemed reasonable to modify the example so as
to shorten its output slightly; but for the most part I just added a
&zwsp; after 67 characters, which is the most we can fit on a line
of monospace text in A4 format.

Discussion: https://postgr.es/m/6916.1589146280@sss.pgh.pa.us

doc/src/sgml/bloom.sgml

@@ -131,7 +131,7 @@ CREATE INDEX
 <programlisting>
 =# EXPLAIN ANALYZE SELECT * FROM tbloom WHERE i2 = 898732 AND i5 = 123451;
                                                  QUERY PLAN
-------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------------------------
  Seq Scan on tbloom  (cost=0.00..213694.08 rows=1 width=24) (actual time=1445.438..1445.438 rows=0 loops=1)
    Filter: ((i2 = 898732) AND (i5 = 123451))
    Rows Removed by Filter: 10000000
@@ -147,7 +147,7 @@ CREATE INDEX
 <programlisting>
 =# EXPLAIN ANALYZE SELECT * FROM tbloom WHERE i2 = 898732 AND i5 = 123451;
                                                            QUERY PLAN
---------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------------------------------------------------
  Index Only Scan using btreeidx on tbloom  (cost=0.56..298311.96 rows=1 width=24) (actual time=445.709..445.709 rows=0 loops=1)
    Index Cond: ((i2 = 898732) AND (i5 = 123451))
    Heap Fetches: 0
@@ -162,7 +162,7 @@ CREATE INDEX
 <programlisting>
 =# EXPLAIN ANALYZE SELECT * FROM tbloom WHERE i2 = 898732 AND i5 = 123451;
                                                         QUERY PLAN
----------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------------------------------------------------------
  Bitmap Heap Scan on tbloom  (cost=178435.39..178439.41 rows=1 width=24) (actual time=76.698..76.698 rows=0 loops=1)
    Recheck Cond: ((i2 = 898732) AND (i5 = 123451))
    Rows Removed by Index Recheck: 2439
@@ -189,7 +189,7 @@ CREATE INDEX
 <programlisting>
 =# EXPLAIN ANALYZE SELECT * FROM tbloom WHERE i2 = 898732 AND i5 = 123451;
                                                           QUERY PLAN
-------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------------------------------------------
  Bitmap Heap Scan on tbloom  (cost=9.29..13.30 rows=1 width=24) (actual time=0.148..0.148 rows=0 loops=1)
    Recheck Cond: ((i5 = 123451) AND (i2 = 898732))
    -&gt;  BitmapAnd  (cost=9.29..9.29 rows=1 width=0) (actual time=0.145..0.145 rows=0 loops=1)

doc/src/sgml/datatype.sgml

@@ -4036,7 +4036,7 @@ SELECT $$the lexeme 'Joe''s' contains a quote$$::tsvector;
 <programlisting>
 SELECT 'a:1 fat:2 cat:3 sat:4 on:5 a:6 mat:7 and:8 ate:9 a:10 fat:11 rat:12'::tsvector;
                                   tsvector
--------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------
  'a':1,6,10 'and':8 'ate':9 'cat':3 'fat':2,11 'mat':7 'on':5 'rat':12 'sat':4
 </programlisting>
 

doc/src/sgml/ddl.sgml

@@ -4537,7 +4537,7 @@ SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01';
 SET enable_partition_pruning = off;
 EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01';
                                     QUERY PLAN
------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;----------------
  Aggregate  (cost=188.76..188.77 rows=1 width=8)
    ->  Append  (cost=0.00..181.05 rows=3085 width=0)
          ->  Seq Scan on measurement_y2006m02  (cost=0.00..33.12 rows=617 width=0)
@@ -4562,7 +4562,7 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01';
 SET enable_partition_pruning = on;
 EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01';
                                     QUERY PLAN
------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;----------------
  Aggregate  (cost=37.75..37.76 rows=1 width=8)
    ->  Seq Scan on measurement_y2008m01  (cost=0.00..33.12 rows=617 width=0)
          Filter: (logdate >= '2008-01-01'::date)

doc/src/sgml/jit.sgml

@@ -147,7 +147,7 @@
 <screen>
 =# EXPLAIN ANALYZE SELECT SUM(relpages) FROM pg_class;
                                                  QUERY PLAN
--------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------------------------------------
  Aggregate  (cost=16.27..16.29 rows=1 width=8) (actual time=0.303..0.303 rows=1 loops=1)
    ->  Seq Scan on pg_class  (cost=0.00..15.42 rows=342 width=4) (actual time=0.017..0.111 rows=356 loops=1)
  Planning Time: 0.116 ms
@@ -163,7 +163,7 @@
 SET
 =# EXPLAIN ANALYZE SELECT SUM(relpages) FROM pg_class;
                                                  QUERY PLAN
--------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------------------------------------
  Aggregate  (cost=16.27..16.29 rows=1 width=8) (actual time=6.049..6.049 rows=1 loops=1)
    ->  Seq Scan on pg_class  (cost=0.00..15.42 rows=342 width=4) (actual time=0.019..0.052 rows=356 loops=1)
  Planning Time: 0.133 ms

doc/src/sgml/pageinspect.sgml

@@ -788,14 +788,14 @@ test=# SELECT * FROM hash_bitmap_info('con_hash_index', 2052);
     <listitem>
      <para>
       <function>hash_metapage_info</function> returns information stored
-      in meta page of a <acronym>HASH</acronym> index.  For example:
+      in the meta page of a <acronym>HASH</acronym> index.  For example:
 <screen>
 test=# SELECT magic, version, ntuples, ffactor, bsize, bmsize, bmshift,
 test-#     maxbucket, highmask, lowmask, ovflpoint, firstfree, nmaps, procid,
 test-#     regexp_replace(spares::text, '(,0)*}', '}') as spares,
 test-#     regexp_replace(mapp::text, '(,0)*}', '}') as mapp
 test-# FROM hash_metapage_info(get_raw_page('con_hash_index', 0));
--[ RECORD 1 ]-------------------------------------------------------------------------------
+-[ RECORD 1 ]-------------------------------------------------&zwsp;------------------------------
 magic     | 105121344
 version   | 4
 ntuples   | 500500
@@ -810,7 +810,7 @@ ovflpoint | 28
 firstfree | 1204
 nmaps     | 1
 procid    | 450
-spares    | {0,0,0,0,0,0,1,1,1,1,1,1,1,1,3,4,4,4,45,55,58,59,508,567,628,704,1193,1202,1204}
+spares    | {0,0,0,0,0,0,1,1,1,1,1,1,1,1,3,4,4,4,45,55,58,59,&zwsp;508,567,628,704,1193,1202,1204}
 mapp      | {65}
 </screen>
      </para>

doc/src/sgml/parallel.sgml

@@ -34,7 +34,7 @@
 <screen>
 EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%';
                                      QUERY PLAN                                      
--------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------------
  Gather  (cost=1000.00..217018.43 rows=1 width=97)
    Workers Planned: 2
    ->  Parallel Seq Scan on pgbench_accounts  (cost=0.00..216018.33 rows=1 width=97)

doc/src/sgml/perform.sgml

@@ -229,7 +229,7 @@ EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 7000;
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 100;
 
                                   QUERY PLAN
-------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------
  Bitmap Heap Scan on tenk1  (cost=5.07..229.20 rows=101 width=244)
    Recheck Cond: (unique1 < 100)
    ->  Bitmap Index Scan on tenk1_unique1  (cost=0.00..5.04 rows=101 width=0)
@@ -256,7 +256,7 @@ EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 100;
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 100 AND stringu1 = 'xxx';
 
                                   QUERY PLAN
-------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------
  Bitmap Heap Scan on tenk1  (cost=5.04..229.43 rows=1 width=244)
    Recheck Cond: (unique1 < 100)
    Filter: (stringu1 = 'xxx'::name)
@@ -280,7 +280,7 @@ EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 100 AND stringu1 = 'xxx';
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 = 42;
 
                                  QUERY PLAN
------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;----------
  Index Scan using tenk1_unique1 on tenk1  (cost=0.29..8.30 rows=1 width=244)
    Index Cond: (unique1 = 42)
 </screen>
@@ -318,7 +318,7 @@ EXPLAIN SELECT * FROM tenk1 ORDER BY unique1;
 <screen>
 EXPLAIN SELECT * FROM tenk1 ORDER BY four, ten LIMIT 100;
                                               QUERY PLAN
-------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------------------
  Limit  (cost=521.06..538.05 rows=100 width=244)
    ->  Incremental Sort  (cost=521.06..2220.95 rows=10000 width=244)
          Sort Key: four, ten
@@ -343,7 +343,7 @@ EXPLAIN SELECT * FROM tenk1 ORDER BY four, ten LIMIT 100;
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 &lt; 100 AND unique2 &gt; 9000;
 
                                      QUERY PLAN
--------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------------
  Bitmap Heap Scan on tenk1  (cost=25.08..60.21 rows=10 width=244)
    Recheck Cond: ((unique1 &lt; 100) AND (unique2 &gt; 9000))
    -&gt;  BitmapAnd  (cost=25.08..25.08 rows=10 width=0)
@@ -366,7 +366,7 @@ EXPLAIN SELECT * FROM tenk1 WHERE unique1 &lt; 100 AND unique2 &gt; 9000;
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 &lt; 100 AND unique2 &gt; 9000 LIMIT 2;
 
                                      QUERY PLAN
--------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------------
  Limit  (cost=0.29..14.48 rows=2 width=244)
    -&gt;  Index Scan using tenk1_unique2 on tenk1  (cost=0.29..71.27 rows=10 width=244)
          Index Cond: (unique2 &gt; 9000)
@@ -396,7 +396,7 @@ FROM tenk1 t1, tenk2 t2
 WHERE t1.unique1 &lt; 10 AND t1.unique2 = t2.unique2;
 
                                       QUERY PLAN
---------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------
  Nested Loop  (cost=4.65..118.62 rows=10 width=488)
    -&gt;  Bitmap Heap Scan on tenk1 t1  (cost=4.36..39.47 rows=10 width=244)
          Recheck Cond: (unique1 &lt; 10)
@@ -445,7 +445,7 @@ FROM tenk1 t1, tenk2 t2
 WHERE t1.unique1 &lt; 10 AND t2.unique2 &lt; 10 AND t1.hundred &lt; t2.hundred;
 
                                          QUERY PLAN
----------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------------------------
  Nested Loop  (cost=4.65..49.46 rows=33 width=488)
    Join Filter: (t1.hundred &lt; t2.hundred)
    -&gt;  Bitmap Heap Scan on tenk1 t1  (cost=4.36..39.47 rows=10 width=244)
@@ -493,7 +493,7 @@ FROM tenk1 t1, tenk2 t2
 WHERE t1.unique1 &lt; 100 AND t1.unique2 = t2.unique2;
 
                                         QUERY PLAN
-------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------
  Hash Join  (cost=230.47..713.98 rows=101 width=488)
    Hash Cond: (t2.unique2 = t1.unique2)
    -&gt;  Seq Scan on tenk2 t2  (cost=0.00..445.00 rows=10000 width=244)
@@ -524,7 +524,7 @@ FROM tenk1 t1, onek t2
 WHERE t1.unique1 &lt; 100 AND t1.unique2 = t2.unique2;
 
                                         QUERY PLAN
-------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------
  Merge Join  (cost=198.11..268.19 rows=10 width=488)
    Merge Cond: (t1.unique2 = t2.unique2)
    -&gt;  Index Scan using tenk1_unique2 on tenk1 t1  (cost=0.29..656.28 rows=101 width=244)
@@ -562,7 +562,7 @@ FROM tenk1 t1, onek t2
 WHERE t1.unique1 &lt; 100 AND t1.unique2 = t2.unique2;
 
                                         QUERY PLAN
-------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------
  Merge Join  (cost=0.56..292.65 rows=10 width=488)
    Merge Cond: (t1.unique2 = t2.unique2)
    -&gt;  Index Scan using tenk1_unique2 on tenk1 t1  (cost=0.29..656.28 rows=101 width=244)
@@ -596,7 +596,7 @@ FROM tenk1 t1, tenk2 t2
 WHERE t1.unique1 &lt; 10 AND t1.unique2 = t2.unique2;
 
                                                            QUERY PLAN
----------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------------------------------------------------------------
  Nested Loop  (cost=4.65..118.62 rows=10 width=488) (actual time=0.128..0.377 rows=10 loops=1)
    -&gt;  Bitmap Heap Scan on tenk1 t1  (cost=4.36..39.47 rows=10 width=244) (actual time=0.057..0.121 rows=10 loops=1)
          Recheck Cond: (unique1 &lt; 10)
@@ -640,7 +640,7 @@ FROM tenk1 t1, tenk2 t2
 WHERE t1.unique1 &lt; 100 AND t1.unique2 = t2.unique2 ORDER BY t1.fivethous;
 
                                                                  QUERY PLAN
---------------------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------------------------------------------------------&zwsp;------
  Sort  (cost=717.34..717.59 rows=101 width=488) (actual time=7.761..7.774 rows=100 loops=1)
    Sort Key: t1.fivethous
    Sort Method: quicksort  Memory: 77kB
@@ -673,7 +673,7 @@ WHERE t1.unique1 &lt; 100 AND t1.unique2 = t2.unique2 ORDER BY t1.fivethous;
 EXPLAIN ANALYZE SELECT * FROM tenk1 WHERE ten &lt; 7;
 
                                                QUERY PLAN
----------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------------------------------------
  Seq Scan on tenk1  (cost=0.00..483.00 rows=7000 width=244) (actual time=0.016..5.107 rows=7000 loops=1)
    Filter: (ten &lt; 7)
    Rows Removed by Filter: 3000
@@ -696,7 +696,7 @@ EXPLAIN ANALYZE SELECT * FROM tenk1 WHERE ten &lt; 7;
 EXPLAIN ANALYZE SELECT * FROM polygon_tbl WHERE f1 @&gt; polygon '(0.5,2.0)';
 
                                               QUERY PLAN
-------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------------------
  Seq Scan on polygon_tbl  (cost=0.00..1.05 rows=1 width=32) (actual time=0.044..0.044 rows=0 loops=1)
    Filter: (f1 @&gt; '((0.5,2))'::polygon)
    Rows Removed by Filter: 4
@@ -715,7 +715,7 @@ SET enable_seqscan TO off;
 EXPLAIN ANALYZE SELECT * FROM polygon_tbl WHERE f1 @&gt; polygon '(0.5,2.0)';
 
                                                         QUERY PLAN
---------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------------------------------------------
  Index Scan using gpolygonind on polygon_tbl  (cost=0.13..8.15 rows=1 width=32) (actual time=0.062..0.062 rows=0 loops=1)
    Index Cond: (f1 @&gt; '((0.5,2))'::polygon)
    Rows Removed by Index Recheck: 1
@@ -738,7 +738,7 @@ EXPLAIN ANALYZE SELECT * FROM polygon_tbl WHERE f1 @&gt; polygon '(0.5,2.0)';
 EXPLAIN (ANALYZE, BUFFERS) SELECT * FROM tenk1 WHERE unique1 &lt; 100 AND unique2 &gt; 9000;
 
                                                            QUERY PLAN
----------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------------------------------------------------------------
  Bitmap Heap Scan on tenk1  (cost=25.08..60.21 rows=10 width=244) (actual time=0.323..0.342 rows=10 loops=1)
    Recheck Cond: ((unique1 &lt; 100) AND (unique2 &gt; 9000))
    Buffers: shared hit=15
@@ -772,7 +772,7 @@ BEGIN;
 EXPLAIN ANALYZE UPDATE tenk1 SET hundred = hundred + 1 WHERE unique1 &lt; 100;
 
                                                            QUERY PLAN
---------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------------------------------------------------
  Update on tenk1  (cost=5.07..229.46 rows=101 width=250) (actual time=14.628..14.628 rows=0 loops=1)
    -&gt;  Bitmap Heap Scan on tenk1  (cost=5.07..229.46 rows=101 width=250) (actual time=0.101..0.439 rows=100 loops=1)
          Recheck Cond: (unique1 &lt; 100)
@@ -808,7 +808,7 @@ ROLLBACK;
 <screen>
 EXPLAIN UPDATE parent SET f2 = f2 + 1 WHERE f1 = 101;
                                     QUERY PLAN
------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;----------------
  Update on parent  (cost=0.00..24.53 rows=4 width=14)
    Update on parent
    Update on child1
@@ -896,7 +896,7 @@ EXPLAIN UPDATE parent SET f2 = f2 + 1 WHERE f1 = 101;
 EXPLAIN ANALYZE SELECT * FROM tenk1 WHERE unique1 &lt; 100 AND unique2 &gt; 9000 LIMIT 2;
 
                                                           QUERY PLAN
--------------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------------------------------------------------------
  Limit  (cost=0.29..14.71 rows=2 width=244) (actual time=0.177..0.249 rows=2 loops=1)
    -&gt;  Index Scan using tenk1_unique2 on tenk1  (cost=0.29..72.42 rows=10 width=244) (actual time=0.174..0.244 rows=2 loops=1)
          Index Cond: (unique2 &gt; 9000)
@@ -1311,7 +1311,7 @@ ANALYZE zipcodes;
 SELECT stxkeys AS k, stxdndistinct AS nd
   FROM pg_statistic_ext join pg_statistic_ext_data on (oid = stxoid)
   WHERE stxname = 'stts2';
--[ RECORD 1 ]--------------------------------------------------------
+-[ RECORD 1 ]------------------------------------------------------&zwsp;--
 k  | 1 2 5
 nd | {"1, 2": 33178, "1, 5": 33178, "2, 5": 27435, "1, 2, 5": 33178}
 (1 row)

doc/src/sgml/pgstatstatements.sgml

@@ -653,31 +653,31 @@ bench=# \x
 bench=# SELECT query, calls, total_exec_time, rows, 100.0 * shared_blks_hit /
                nullif(shared_blks_hit + shared_blks_read, 0) AS hit_percent
           FROM pg_stat_statements ORDER BY total_exec_time DESC LIMIT 5;
--[ RECORD 1 ]---+--------------------------------------------------------------------
+-[ RECORD 1 ]---+--------------------------------------------------&zwsp;------------------
 query           | UPDATE pgbench_branches SET bbalance = bbalance + $1 WHERE bid = $2
 calls           | 3000
 total_exec_time | 25565.855387
 rows            | 3000
 hit_percent     | 100.0000000000000000
--[ RECORD 2 ]---+--------------------------------------------------------------------
+-[ RECORD 2 ]---+--------------------------------------------------&zwsp;------------------
 query           | UPDATE pgbench_tellers SET tbalance = tbalance + $1 WHERE tid = $2
 calls           | 3000
 total_exec_time | 20756.669379
 rows            | 3000
 hit_percent     | 100.0000000000000000
--[ RECORD 3 ]---+--------------------------------------------------------------------
+-[ RECORD 3 ]---+--------------------------------------------------&zwsp;------------------
 query           | copy pgbench_accounts from stdin
 calls           | 1
 total_exec_time | 291.865911
 rows            | 100000
 hit_percent     | 100.0000000000000000
--[ RECORD 4 ]---+--------------------------------------------------------------------
+-[ RECORD 4 ]---+--------------------------------------------------&zwsp;------------------
 query           | UPDATE pgbench_accounts SET abalance = abalance + $1 WHERE aid = $2
 calls           | 3000
 total_exec_time | 271.232977
 rows            | 3000
 hit_percent     | 98.8454011741682975
--[ RECORD 5 ]---+--------------------------------------------------------------------
+-[ RECORD 5 ]---+--------------------------------------------------&zwsp;------------------
 query           | alter table pgbench_accounts add primary key (aid)
 calls           | 1
 total_exec_time | 160.588563
@@ -691,31 +691,31 @@ bench=# SELECT pg_stat_statements_reset(0,0,s.queryid) FROM pg_stat_statements A
 bench=# SELECT query, calls, total_exec_time, rows, 100.0 * shared_blks_hit /
                nullif(shared_blks_hit + shared_blks_read, 0) AS hit_percent
           FROM pg_stat_statements ORDER BY total_exec_time DESC LIMIT 5;
--[ RECORD 1 ]---+--------------------------------------------------------------------
+-[ RECORD 1 ]---+--------------------------------------------------&zwsp;------------------
 query           | UPDATE pgbench_tellers SET tbalance = tbalance + $1 WHERE tid = $2
 calls           | 3000
 total_exec_time | 20756.669379
 rows            | 3000
 hit_percent     | 100.0000000000000000
--[ RECORD 2 ]---+--------------------------------------------------------------------
+-[ RECORD 2 ]---+--------------------------------------------------&zwsp;------------------
 query           | copy pgbench_accounts from stdin
 calls           | 1
 total_exec_time | 291.865911
 rows            | 100000
 hit_percent     | 100.0000000000000000
--[ RECORD 3 ]---+--------------------------------------------------------------------
+-[ RECORD 3 ]---+--------------------------------------------------&zwsp;------------------
 query           | UPDATE pgbench_accounts SET abalance = abalance + $1 WHERE aid = $2
 calls           | 3000
 total_exec_time | 271.232977
 rows            | 3000
 hit_percent     | 98.8454011741682975
--[ RECORD 4 ]---+--------------------------------------------------------------------
+-[ RECORD 4 ]---+--------------------------------------------------&zwsp;------------------
 query           | alter table pgbench_accounts add primary key (aid)
 calls           | 1
 total_exec_time | 160.588563
 rows            | 0
 hit_percent     | 100.0000000000000000
--[ RECORD 5 ]---+--------------------------------------------------------------------
+-[ RECORD 5 ]---+--------------------------------------------------&zwsp;------------------
 query           | vacuum analyze pgbench_accounts
 calls           | 1
 total_exec_time | 136.448116
@@ -727,13 +727,13 @@ bench=# SELECT pg_stat_statements_reset(0,0,0);
 bench=# SELECT query, calls, total_exec_time, rows, 100.0 * shared_blks_hit /
                nullif(shared_blks_hit + shared_blks_read, 0) AS hit_percent
           FROM pg_stat_statements ORDER BY total_exec_time DESC LIMIT 5;
--[ RECORD 1 ]---+-----------------------------------------------------------------------------
+-[ RECORD 1 ]---+--------------------------------------------------&zwsp;---------------------------
 query           | SELECT pg_stat_statements_reset(0,0,0)
 calls           | 1
 total_exec_time | 0.189497
 rows            | 1
 hit_percent     | 
--[ RECORD 2 ]---+-----------------------------------------------------------------------------
+-[ RECORD 2 ]---+--------------------------------------------------&zwsp;---------------------------
 query           | SELECT query, calls, total_exec_time, rows, $1 * shared_blks_hit /          +
                 |                nullif(shared_blks_hit + shared_blks_read, $2) AS hit_percent+
                 |           FROM pg_stat_statements ORDER BY total_exec_time DESC LIMIT $3

doc/src/sgml/planstats.sgml

@@ -80,7 +80,7 @@ SELECT relpages, reltuples FROM pg_class WHERE relname = 'tenk1';
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 < 1000;
 
                                    QUERY PLAN
---------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------
  Bitmap Heap Scan on tenk1  (cost=24.06..394.64 rows=1007 width=244)
    Recheck Cond: (unique1 < 1000)
    ->  Bitmap Index Scan on tenk1_unique1  (cost=0.00..23.80 rows=1007 width=0)
@@ -160,8 +160,8 @@ WHERE tablename='tenk1' AND attname='stringu1';
 
 null_frac         | 0
 n_distinct        | 676
-most_common_vals  | {EJAAAA,BBAAAA,CRAAAA,FCAAAA,FEAAAA,GSAAAA,JOAAAA,MCAAAA,NAAAAA,WGAAAA}
-most_common_freqs | {0.00333333,0.003,0.003,0.003,0.003,0.003,0.003,0.003,0.003,0.003}
+most_common_vals  | {EJAAAA,BBAAAA,CRAAAA,FCAAAA,FEAAAA,GSAAAA,&zwsp;JOAAAA,MCAAAA,NAAAAA,WGAAAA}
+most_common_freqs | {0.00333333,0.003,0.003,0.003,0.003,0.003,&zwsp;0.003,0.003,0.003,0.003}
 
 </programlisting>
 
@@ -261,8 +261,8 @@ SELECT histogram_bounds FROM pg_stats
 WHERE tablename='tenk1' AND attname='stringu1';
 
                                 histogram_bounds
---------------------------------------------------------------------------------
- {AAAAAA,CQAAAA,FRAAAA,IBAAAA,KRAAAA,NFAAAA,PSAAAA,SGAAAA,VAAAAA,XLAAAA,ZZAAAA}
+-------------------------------------------------------------------&zwsp;-------------
+ {AAAAAA,CQAAAA,FRAAAA,IBAAAA,KRAAAA,NFAAAA,PSAAAA,SGAAAA,VAAAAA,&zwsp;XLAAAA,ZZAAAA}
 </programlisting>
 
    Checking the MCV list, we find that the condition <literal>stringu1 &lt;
@@ -312,7 +312,7 @@ rows        = 10000 * 0.307669
 EXPLAIN SELECT * FROM tenk1 WHERE unique1 &lt; 1000 AND stringu1 = 'xxx';
 
                                    QUERY PLAN
---------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------
  Bitmap Heap Scan on tenk1  (cost=23.80..396.91 rows=1 width=244)
    Recheck Cond: (unique1 &lt; 1000)
    Filter: (stringu1 = 'xxx'::name)
@@ -346,7 +346,7 @@ EXPLAIN SELECT * FROM tenk1 t1, tenk2 t2
 WHERE t1.unique1 &lt; 50 AND t1.unique2 = t2.unique2;
 
                                       QUERY PLAN
---------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------
  Nested Loop  (cost=4.64..456.23 rows=50 width=488)
    -&gt;  Bitmap Heap Scan on tenk1 t1  (cost=4.64..142.17 rows=50 width=244)
          Recheck Cond: (unique1 &lt; 50)
@@ -491,7 +491,7 @@ SELECT relpages, reltuples FROM pg_class WHERE relname = 't';
 <programlisting>
 EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1;
                                  QUERY PLAN                                  
--------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------
  Seq Scan on t  (cost=0.00..170.00 rows=100 width=8) (actual rows=100 loops=1)
    Filter: (a = 1)
    Rows Removed by Filter: 9900
@@ -508,7 +508,7 @@ EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1;
 <programlisting>
 EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1 AND b = 1;
                                  QUERY PLAN                                  
------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;----------
  Seq Scan on t  (cost=0.00..195.00 rows=1 width=8) (actual rows=100 loops=1)
    Filter: ((a = 1) AND (b = 1))
    Rows Removed by Filter: 9900
@@ -532,7 +532,7 @@ CREATE STATISTICS stts (dependencies) ON a, b FROM t;
 ANALYZE t;
 EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1 AND b = 1;
                                   QUERY PLAN                                   
--------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------
  Seq Scan on t  (cost=0.00..195.00 rows=100 width=8) (actual rows=100 loops=1)
    Filter: ((a = 1) AND (b = 1))
    Rows Removed by Filter: 9900
@@ -553,7 +553,7 @@ EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1 AND b = 1;
 <programlisting>
 EXPLAIN (ANALYZE, TIMING OFF) SELECT COUNT(*) FROM t GROUP BY a;
                                        QUERY PLAN                                        
------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;----------------------
  HashAggregate  (cost=195.00..196.00 rows=100 width=12) (actual rows=100 loops=1)
    Group Key: a
    -&gt;  Seq Scan on t  (cost=0.00..145.00 rows=10000 width=4) (actual rows=10000 loops=1)
@@ -564,7 +564,7 @@ EXPLAIN (ANALYZE, TIMING OFF) SELECT COUNT(*) FROM t GROUP BY a;
 <programlisting>
 EXPLAIN (ANALYZE, TIMING OFF) SELECT COUNT(*) FROM t GROUP BY a, b;
                                        QUERY PLAN                                        
---------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------------
  HashAggregate  (cost=220.00..230.00 rows=1000 width=16) (actual rows=100 loops=1)
    Group Key: a, b
    -&gt;  Seq Scan on t  (cost=0.00..145.00 rows=10000 width=8) (actual rows=10000 loops=1)
@@ -577,7 +577,7 @@ CREATE STATISTICS stts (dependencies, ndistinct) ON a, b FROM t;
 ANALYZE t;
 EXPLAIN (ANALYZE, TIMING OFF) SELECT COUNT(*) FROM t GROUP BY a, b;
                                        QUERY PLAN                                        
---------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-------------------------
  HashAggregate  (cost=220.00..221.00 rows=100 width=16) (actual rows=100 loops=1)
    Group Key: a, b
    -&gt;  Seq Scan on t  (cost=0.00..145.00 rows=10000 width=8) (actual rows=10000 loops=1)
@@ -617,7 +617,7 @@ CREATE STATISTICS stts2 (mcv) ON a, b FROM t;
 ANALYZE t;
 EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1 AND b = 1;
                                    QUERY PLAN
--------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;------------
  Seq Scan on t  (cost=0.00..195.00 rows=100 width=8) (actual rows=100 loops=1)
    Filter: ((a = 1) AND (b = 1))
    Rows Removed by Filter: 9900
@@ -674,7 +674,7 @@ SELECT m.* FROM pg_statistic_ext join pg_statistic_ext_data on (oid = stxoid),
 <programlisting>
 EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1 AND b = 10;
                                  QUERY PLAN
----------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------
  Seq Scan on t  (cost=0.00..195.00 rows=1 width=8) (actual rows=0 loops=1)
    Filter: ((a = 1) AND (b = 10))
    Rows Removed by Filter: 10000
@@ -687,7 +687,7 @@ EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a = 1 AND b = 10;
 <programlisting>
 EXPLAIN (ANALYZE, TIMING OFF) SELECT * FROM t WHERE a &lt;= 49 AND b &gt; 49;
                                 QUERY PLAN
----------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--------
  Seq Scan on t  (cost=0.00..195.00 rows=1 width=8) (actual rows=0 loops=1)
    Filter: ((a &lt;= 49) AND (b &gt; 49))
    Rows Removed by Filter: 10000

doc/src/sgml/ref/explain.sgml

@@ -420,7 +420,7 @@ EXPLAIN (COSTS FALSE) SELECT * FROM foo WHERE i = 4;
 EXPLAIN SELECT sum(i) FROM foo WHERE i < 10;
 
                              QUERY PLAN
----------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;--
  Aggregate  (cost=23.93..23.93 rows=1 width=4)
    ->  Index Scan using fi on foo  (cost=0.00..23.92 rows=6 width=4)
          Index Cond: (i < 10)
@@ -440,7 +440,7 @@ PREPARE query(int, int) AS SELECT sum(bar) FROM test
 EXPLAIN ANALYZE EXECUTE query(100, 200);
 
                                                        QUERY PLAN                                                       
-------------------------------------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------------------------------------
  HashAggregate  (cost=9.54..9.54 rows=1 width=8) (actual time=0.156..0.161 rows=11 loops=1)
    Group Key: foo
    ->  Index Scan using test_pkey on test  (cost=0.29..9.29 rows=50 width=8) (actual time=0.039..0.091 rows=99 loops=1)

doc/src/sgml/start.sgml

@@ -362,7 +362,7 @@ mydb=#
 <screen>
 <prompt>mydb=&gt;</prompt> <userinput>SELECT version();</userinput>
                                          version
-------------------------------------------------------------------------------------------
+-------------------------------------------------------------------&zwsp;-----------------------
  PostgreSQL &version; on x86_64-pc-linux-gnu, compiled by gcc (Debian 4.9.2-10) 4.9.2, 64-bit
 (1 row)
 

doc/src/sgml/syntax.sgml

@@ -2317,9 +2317,9 @@ SELECT ARRAY[]::integer[];
    bracketed) subquery. For example:
 <programlisting>
 SELECT ARRAY(SELECT oid FROM pg_proc WHERE proname LIKE 'bytea%');
-                                 array
------------------------------------------------------------------------
- {2011,1954,1948,1952,1951,1244,1950,2005,1949,1953,2006,31,2412,2413}
+                              array
+------------------------------------------------------------------
+ {2011,1954,1948,1952,1951,1244,1950,2005,1949,1953,2006,31,2412}
 (1 row)
 
 SELECT ARRAY(SELECT ARRAY[i, i*2] FROM generate_series(1,5) AS a(i));