regression.diffs

application/octet-stream

Filename: regression.diffs
Type: application/octet-stream
Part: 0
Message: Re: multivariate statistics v11
*** /home/jjanes/pgsql/git/src/test/regress/expected/mv_dependencies.out	2016-03-08 18:08:45.275328461 -0800
--- /home/jjanes/pgsql/git/src/test/regress/results/mv_dependencies.out	2016-03-08 18:17:34.914707058 -0800
***************
*** 21,26 ****
--- 21,28 ----
  ERROR:  unrecognized STATISTICS option "unknown_option"
  -- correct command
  CREATE STATISTICS s1 ON functional_dependencies (a, b, c) WITH (dependencies);
+ ERROR:  duplicate key value violates unique constraint "pg_mv_statistic_name_index"
+ DETAIL:  Key (staname, stanamespace)=(s1, 2200) already exists.
  -- random data (no functional dependencies)
  INSERT INTO functional_dependencies
       SELECT mod(i, 111), mod(i, 123), mod(i, 23) FROM generate_series(1,10000) s(i);
***************
*** 29,36 ****
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
!  t            | f          | 
! (1 row)
  
  TRUNCATE functional_dependencies;
  -- a => b, a => c, b => c
--- 31,37 ----
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
! (0 rows)
  
  TRUNCATE functional_dependencies;
  -- a => b, a => c, b => c
***************
*** 41,48 ****
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
!  t            | t          | 1 => 2, 1 => 3, 2 => 3
! (1 row)
  
  TRUNCATE functional_dependencies;
  -- a => b, a => c
--- 42,48 ----
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
! (0 rows)
  
  TRUNCATE functional_dependencies;
  -- a => b, a => c
***************
*** 53,60 ****
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
!  t            | t          | 1 => 2, 1 => 3
! (1 row)
  
  TRUNCATE functional_dependencies;
  -- check explain (expect bitmap index scan, not plain index scan)
--- 53,59 ----
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
! (0 rows)
  
  TRUNCATE functional_dependencies;
  -- check explain (expect bitmap index scan, not plain index scan)
***************
*** 66,83 ****
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
!  t            | t          | 1 => 2, 1 => 3, 2 => 3
! (1 row)
  
  EXPLAIN (COSTS off)
   SELECT * FROM functional_dependencies WHERE a = 10 AND b = 5;
!                  QUERY PLAN                  
! ---------------------------------------------
!  Bitmap Heap Scan on functional_dependencies
!    Recheck Cond: ((a = 10) AND (b = 5))
!    ->  Bitmap Index Scan on fdeps_idx
!          Index Cond: ((a = 10) AND (b = 5))
! (4 rows)
  
  DROP TABLE functional_dependencies;
  -- varlena type (text)
--- 65,79 ----
    FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
   deps_enabled | deps_built | pg_mv_stats_dependencies_show 
  --------------+------------+-------------------------------
! (0 rows)
  
  EXPLAIN (COSTS off)
   SELECT * FROM functional_dependencies WHERE a = 10 AND b = 5;
!                       QUERY PLAN                       
! -------------------------------------------------------
!  Index Scan using fdeps_idx on functional_dependencies
!    Index Cond: ((a = 10) AND (b = 5))
! (2 rows)
  
  DROP TABLE functional_dependencies;
  -- varlena type (text)
***************
*** 103,172 ****
  INSERT INTO functional_dependencies
       SELECT i/10, i/100, i/200 FROM generate_series(1,10000) s(i);
  ANALYZE functional_dependencies;
! SELECT deps_enabled, deps_built, pg_mv_stats_dependencies_show(stadeps)
!   FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
!  deps_enabled | deps_built | pg_mv_stats_dependencies_show 
! --------------+------------+-------------------------------
!  t            | t          | 1 => 2, 1 => 3, 2 => 3
! (1 row)
! 
! TRUNCATE functional_dependencies;
! -- a => b, a => c
! INSERT INTO functional_dependencies
!      SELECT i/10, i/150, i/200 FROM generate_series(1,10000) s(i);
! ANALYZE functional_dependencies;
! SELECT deps_enabled, deps_built, pg_mv_stats_dependencies_show(stadeps)
!   FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
!  deps_enabled | deps_built | pg_mv_stats_dependencies_show 
! --------------+------------+-------------------------------
!  t            | t          | 1 => 2, 1 => 3
! (1 row)
! 
! TRUNCATE functional_dependencies;
! -- check explain (expect bitmap index scan, not plain index scan)
! INSERT INTO functional_dependencies
!      SELECT i/10000, i/20000, i/40000 FROM generate_series(1,1000000) s(i);
! CREATE INDEX fdeps_idx ON functional_dependencies (a, b);
! ANALYZE functional_dependencies;
! SELECT deps_enabled, deps_built, pg_mv_stats_dependencies_show(stadeps)
!   FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
!  deps_enabled | deps_built | pg_mv_stats_dependencies_show 
! --------------+------------+-------------------------------
!  t            | t          | 1 => 2, 1 => 3, 2 => 3
! (1 row)
! 
! EXPLAIN (COSTS off)
!  SELECT * FROM functional_dependencies WHERE a = '10' AND b = '5';
!                          QUERY PLAN                         
! ------------------------------------------------------------
!  Bitmap Heap Scan on functional_dependencies
!    Recheck Cond: ((a = '10'::text) AND (b = '5'::text))
!    ->  Bitmap Index Scan on fdeps_idx
!          Index Cond: ((a = '10'::text) AND (b = '5'::text))
! (4 rows)
! 
! DROP TABLE functional_dependencies;
! -- NULL values (mix of int and text columns)
! CREATE TABLE functional_dependencies (
!     a INT,
!     b TEXT,
!     c INT,
!     d TEXT
! );
! CREATE STATISTICS s3 ON functional_dependencies (a, b, c, d) WITH (dependencies);
! INSERT INTO functional_dependencies
!      SELECT
!          mod(i, 100),
!          (CASE WHEN mod(i, 200) = 0 THEN NULL ELSE mod(i,200) END),
!          mod(i, 400),
!          (CASE WHEN mod(i, 300) = 0 THEN NULL ELSE mod(i,600) END)
!      FROM generate_series(1,10000) s(i);
! ANALYZE functional_dependencies;
! SELECT deps_enabled, deps_built, pg_mv_stats_dependencies_show(stadeps)
!   FROM pg_mv_statistic WHERE starelid = 'functional_dependencies'::regclass;
!  deps_enabled | deps_built |     pg_mv_stats_dependencies_show      
! --------------+------------+----------------------------------------
!  t            | t          | 2 => 1, 3 => 1, 3 => 2, 4 => 1, 4 => 2
! (1 row)
! 
! DROP TABLE functional_dependencies;
--- 99,108 ----
  INSERT INTO functional_dependencies
       SELECT i/10, i/100, i/200 FROM generate_series(1,10000) s(i);
  ANALYZE functional_dependencies;
! WARNING:  terminating connection because of crash of another server process
! DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
! HINT:  In a moment you should be able to reconnect to the database and repeat your command.
! server closed the connection unexpectedly
! 	This probably means the server terminated abnormally
! 	before or while processing the request.
! connection to server was lost

======================================================================

*** /home/jjanes/pgsql/git/src/test/regress/expected/mv_mcv.out	2016-03-08 18:08:45.299328161 -0800
--- /home/jjanes/pgsql/git/src/test/regress/results/mv_mcv.out	2016-03-08 18:17:34.643710446 -0800
***************
*** 80,207 ****
  
  EXPLAIN (COSTS off)
   SELECT * FROM mcv_list WHERE a = 10 AND b = 5;
!                  QUERY PLAN                 
! --------------------------------------------
!  Bitmap Heap Scan on mcv_list
!    Recheck Cond: ((a = 10) AND (b = 5))
!    ->  Bitmap Index Scan on mcv_idx
!          Index Cond: ((a = 10) AND (b = 5))
! (4 rows)
! 
! DROP TABLE mcv_list;
! -- varlena type (text)
! CREATE TABLE mcv_list (
!     a TEXT,
!     b TEXT,
!     c TEXT
! );
! CREATE STATISTICS s2 ON mcv_list (a, b, c) WITH (mcv);
! -- random data
! INSERT INTO mcv_list
!      SELECT mod(i, 111), mod(i, 123), mod(i, 23) FROM generate_series(1,10000) s(i);
! ANALYZE mcv_list;
! SELECT mcv_enabled, mcv_built, pg_mv_stats_mcvlist_info(stamcv)
!   FROM pg_mv_statistic WHERE starelid = 'mcv_list'::regclass;
!  mcv_enabled | mcv_built | pg_mv_stats_mcvlist_info 
! -------------+-----------+--------------------------
!  t           | f         | 
! (1 row)
! 
! TRUNCATE mcv_list;
! -- a => b, a => c, b => c
! INSERT INTO mcv_list
!      SELECT i/10, i/100, i/200 FROM generate_series(1,10000) s(i);
! ANALYZE mcv_list;
! SELECT mcv_enabled, mcv_built, pg_mv_stats_mcvlist_info(stamcv)
!   FROM pg_mv_statistic WHERE starelid = 'mcv_list'::regclass;
!  mcv_enabled | mcv_built | pg_mv_stats_mcvlist_info 
! -------------+-----------+--------------------------
!  t           | t         | nitems=1000
! (1 row)
! 
! TRUNCATE mcv_list;
! -- a => b, a => c
! INSERT INTO mcv_list
!      SELECT i/10, i/150, i/200 FROM generate_series(1,10000) s(i);
! ANALYZE mcv_list;
! SELECT mcv_enabled, mcv_built, pg_mv_stats_mcvlist_info(stamcv)
!   FROM pg_mv_statistic WHERE starelid = 'mcv_list'::regclass;
!  mcv_enabled | mcv_built | pg_mv_stats_mcvlist_info 
! -------------+-----------+--------------------------
!  t           | t         | nitems=1000
! (1 row)
! 
! TRUNCATE mcv_list;
! -- check explain (expect bitmap index scan, not plain index scan)
! INSERT INTO mcv_list
!      SELECT i/10000, i/20000, i/40000 FROM generate_series(1,1000000) s(i);
! CREATE INDEX mcv_idx ON mcv_list (a, b);
! ANALYZE mcv_list;
! SELECT mcv_enabled, mcv_built, pg_mv_stats_mcvlist_info(stamcv)
!   FROM pg_mv_statistic WHERE starelid = 'mcv_list'::regclass;
!  mcv_enabled | mcv_built | pg_mv_stats_mcvlist_info 
! -------------+-----------+--------------------------
!  t           | t         | nitems=100
! (1 row)
! 
! EXPLAIN (COSTS off)
!  SELECT * FROM mcv_list WHERE a = '10' AND b = '5';
!                          QUERY PLAN                         
! ------------------------------------------------------------
!  Bitmap Heap Scan on mcv_list
!    Recheck Cond: ((a = '10'::text) AND (b = '5'::text))
!    ->  Bitmap Index Scan on mcv_idx
!          Index Cond: ((a = '10'::text) AND (b = '5'::text))
! (4 rows)
! 
! TRUNCATE mcv_list;
! -- check explain (expect bitmap index scan, not plain index scan) with NULLs
! INSERT INTO mcv_list
!      SELECT
!        (CASE WHEN i/10000 = 0 THEN NULL ELSE i/10000 END),
!        (CASE WHEN i/20000 = 0 THEN NULL ELSE i/20000 END),
!        (CASE WHEN i/40000 = 0 THEN NULL ELSE i/40000 END)
!      FROM generate_series(1,1000000) s(i);
! ANALYZE mcv_list;
! SELECT mcv_enabled, mcv_built, pg_mv_stats_mcvlist_info(stamcv)
!   FROM pg_mv_statistic WHERE starelid = 'mcv_list'::regclass;
!  mcv_enabled | mcv_built | pg_mv_stats_mcvlist_info 
! -------------+-----------+--------------------------
!  t           | t         | nitems=100
! (1 row)
! 
! EXPLAIN (COSTS off)
!  SELECT * FROM mcv_list WHERE a IS NULL AND b IS NULL;
!                     QUERY PLAN                     
! ---------------------------------------------------
!  Bitmap Heap Scan on mcv_list
!    Recheck Cond: ((a IS NULL) AND (b IS NULL))
!    ->  Bitmap Index Scan on mcv_idx
!          Index Cond: ((a IS NULL) AND (b IS NULL))
! (4 rows)
! 
! DROP TABLE mcv_list;
! -- NULL values (mix of int and text columns)
! CREATE TABLE mcv_list (
!     a INT,
!     b TEXT,
!     c INT,
!     d TEXT
! );
! CREATE STATISTICS s3 ON mcv_list (a, b, c, d) WITH (mcv);
! INSERT INTO mcv_list
!      SELECT
!          mod(i, 100),
!          (CASE WHEN mod(i, 200) = 0 THEN NULL ELSE mod(i,200) END),
!          mod(i, 400),
!          (CASE WHEN mod(i, 300) = 0 THEN NULL ELSE mod(i,600) END)
!      FROM generate_series(1,10000) s(i);
! ANALYZE mcv_list;
! SELECT mcv_enabled, mcv_built, pg_mv_stats_mcvlist_info(stamcv)
!   FROM pg_mv_statistic WHERE starelid = 'mcv_list'::regclass;
!  mcv_enabled | mcv_built | pg_mv_stats_mcvlist_info 
! -------------+-----------+--------------------------
!  t           | t         | nitems=1200
! (1 row)
! 
! DROP TABLE mcv_list;
--- 80,86 ----
  
  EXPLAIN (COSTS off)
   SELECT * FROM mcv_list WHERE a = 10 AND b = 5;
! server closed the connection unexpectedly
! 	This probably means the server terminated abnormally
! 	before or while processing the request.
! connection to server was lost

======================================================================

*** /home/jjanes/pgsql/git/src/test/regress/expected/mv_histogram.out	2016-03-08 18:08:45.373327236 -0800
--- /home/jjanes/pgsql/git/src/test/regress/results/mv_histogram.out	2016-03-08 18:17:34.920706983 -0800
***************
*** 30,35 ****
--- 30,37 ----
  ERROR:  maximum number of buckets is 16384
  -- correct command
  CREATE STATISTICS s1 ON mv_histogram (a, b, c) WITH (histogram);
+ ERROR:  duplicate key value violates unique constraint "pg_mv_statistic_name_index"
+ DETAIL:  Key (staname, stanamespace)=(s1, 2200) already exists.
  -- random data (no functional dependencies)
  INSERT INTO mv_histogram
       SELECT mod(i, 111), mod(i, 123), mod(i, 23) FROM generate_series(1,10000) s(i);
***************
*** 38,45 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c, b => c
--- 40,46 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c, b => c
***************
*** 50,57 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c
--- 51,57 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c
***************
*** 62,69 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  TRUNCATE mv_histogram;
  -- check explain (expect bitmap index scan, not plain index scan)
--- 62,68 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  TRUNCATE mv_histogram;
  -- check explain (expect bitmap index scan, not plain index scan)
***************
*** 75,92 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  EXPLAIN (COSTS off)
   SELECT * FROM mv_histogram WHERE a = 10 AND b = 5;
!                  QUERY PLAN                 
! --------------------------------------------
!  Bitmap Heap Scan on mv_histogram
!    Recheck Cond: ((a = 10) AND (b = 5))
!    ->  Bitmap Index Scan on hist_idx
!          Index Cond: ((a = 10) AND (b = 5))
! (4 rows)
  
  DROP TABLE mv_histogram;
  -- varlena type (text)
--- 74,88 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  EXPLAIN (COSTS off)
   SELECT * FROM mv_histogram WHERE a = 10 AND b = 5;
!                 QUERY PLAN                 
! -------------------------------------------
!  Index Scan using hist_idx on mv_histogram
!    Index Cond: ((a = 10) AND (b = 5))
! (2 rows)
  
  DROP TABLE mv_histogram;
  -- varlena type (text)
***************
*** 96,101 ****
--- 92,99 ----
      c TEXT
  );
  CREATE STATISTICS s2 ON mv_histogram (a, b, c) WITH (histogram);
+ ERROR:  duplicate key value violates unique constraint "pg_mv_statistic_name_index"
+ DETAIL:  Key (staname, stanamespace)=(s2, 2200) already exists.
  -- random data (no functional dependencies)
  INSERT INTO mv_histogram
       SELECT mod(i, 111), mod(i, 123), mod(i, 23) FROM generate_series(1,10000) s(i);
***************
*** 104,111 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c, b => c
--- 102,108 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c, b => c
***************
*** 116,123 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c
--- 113,119 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  TRUNCATE mv_histogram;
  -- a => b, a => c
***************
*** 128,207 ****
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
!  t            | t
! (1 row)
  
  TRUNCATE mv_histogram;
  -- check explain (expect bitmap index scan, not plain index scan)
  INSERT INTO mv_histogram
       SELECT i/10000, i/20000, i/40000 FROM generate_series(1,1000000) s(i);
! CREATE INDEX hist_idx ON mv_histogram (a, b);
! ANALYZE mv_histogram;
! SELECT hist_enabled, hist_built
!   FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
!  hist_enabled | hist_built 
! --------------+------------
!  t            | t
! (1 row)
! 
! EXPLAIN (COSTS off)
!  SELECT * FROM mv_histogram WHERE a = '10' AND b = '5';
!                          QUERY PLAN                         
! ------------------------------------------------------------
!  Bitmap Heap Scan on mv_histogram
!    Recheck Cond: ((a = '10'::text) AND (b = '5'::text))
!    ->  Bitmap Index Scan on hist_idx
!          Index Cond: ((a = '10'::text) AND (b = '5'::text))
! (4 rows)
! 
! TRUNCATE mv_histogram;
! -- check explain (expect bitmap index scan, not plain index scan) with NULLs
! INSERT INTO mv_histogram
!      SELECT
!        (CASE WHEN i/10000 = 0 THEN NULL ELSE i/10000 END),
!        (CASE WHEN i/20000 = 0 THEN NULL ELSE i/20000 END),
!        (CASE WHEN i/40000 = 0 THEN NULL ELSE i/40000 END)
!      FROM generate_series(1,1000000) s(i);
! ANALYZE mv_histogram;
! SELECT hist_enabled, hist_built
!   FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
!  hist_enabled | hist_built 
! --------------+------------
!  t            | t
! (1 row)
! 
! EXPLAIN (COSTS off)
!  SELECT * FROM mv_histogram WHERE a IS NULL AND b IS NULL;
!                     QUERY PLAN                     
! ---------------------------------------------------
!  Bitmap Heap Scan on mv_histogram
!    Recheck Cond: ((a IS NULL) AND (b IS NULL))
!    ->  Bitmap Index Scan on hist_idx
!          Index Cond: ((a IS NULL) AND (b IS NULL))
! (4 rows)
! 
! DROP TABLE mv_histogram;
! -- NULL values (mix of int and text columns)
! CREATE TABLE mv_histogram (
!     a INT,
!     b TEXT,
!     c INT,
!     d TEXT
! );
! CREATE STATISTICS s3 ON mv_histogram (a, b, c, d) WITH (histogram);
! INSERT INTO mv_histogram
!      SELECT
!          mod(i, 100),
!          (CASE WHEN mod(i, 200) = 0 THEN NULL ELSE mod(i,200) END),
!          mod(i, 400),
!          (CASE WHEN mod(i, 300) = 0 THEN NULL ELSE mod(i,600) END)
!      FROM generate_series(1,10000) s(i);
! ANALYZE mv_histogram;
! SELECT hist_enabled, hist_built
!   FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
!  hist_enabled | hist_built 
! --------------+------------
!  t            | t
! (1 row)
! 
! DROP TABLE mv_histogram;
--- 124,139 ----
    FROM pg_mv_statistic WHERE starelid = 'mv_histogram'::regclass;
   hist_enabled | hist_built 
  --------------+------------
! (0 rows)
  
  TRUNCATE mv_histogram;
  -- check explain (expect bitmap index scan, not plain index scan)
  INSERT INTO mv_histogram
       SELECT i/10000, i/20000, i/40000 FROM generate_series(1,1000000) s(i);
! WARNING:  terminating connection because of crash of another server process
! DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
! HINT:  In a moment you should be able to reconnect to the database and repeat your command.
! server closed the connection unexpectedly
! 	This probably means the server terminated abnormally
! 	before or while processing the request.
! connection to server was lost

======================================================================