1: work with postgres 10

Author: NikolayS

init/generate.sh

@@ -12,6 +12,19 @@ cat > "$OUT" <<- VersCheck
   select 1/0;
 \endif
 
+select regexp_replace(version(), '^PostgreSQL (\d+\.\d+).*$', e'\\\\1')::numeric >= 10 as postgres_dba_pgvers_10plus \gset
+\if :postgres_dba_pgvers_10plus
+  \set funcname_last_wal_receive_lsn pg_last_wal_receive_lsn
+  \set funcname_last_wal_replay_lsn pg_last_wal_replay_lsn
+  \set funcname_is_wal_replay_paused pg_is_wal_replay_paused
+  \echo VERSION 10+++
+\else
+  \set funcname_last_wal_receive_lsn pg_last_xlog_receive_location
+  \set funcname_last_wal_replay_lsn pg_last_xlog_replay_location
+  \set funcname_is_wal_replay_paused pg_is_xlog_replay_paused
+  \echo VERS < 10 !!
+\endif
+
 -- TODO: improve work with custom GUCs for Postgres 9.5 and older
 select regexp_replace(version(), '^PostgreSQL (\d+\.\d+).*$', e'\\\\1')::numeric >= 9.6 as postgres_dba_pgvers_96plus \gset
 \if :postgres_dba_pgvers_96plus

sql/1_basic.sql

@@ -11,10 +11,10 @@ select
   case
     when pg_is_in_recovery()  then 'Replica' || ' (delay: '
       || ((((case
-          when pg_last_xlog_receive_location() = pg_last_xlog_replay_location() then 0
+          when :funcname_last_xlog_receive_location() = :funcname_last_xlog_replay_location() then 0
           else extract (epoch from now() - pg_last_xact_replay_timestamp())
         end)::int)::text || ' second')::interval)::text
-      || '; paused: ' || pg_is_xlog_replay_paused()::text || ')'
+      || '; paused: ' || :funcname_is_xlog_replay_paused()::text || ')'
     else 'Master'
   end as value
 union all

start.psql

@@ -4,6 +4,19 @@
   select 1/0;
 \endif
 
+select regexp_replace(version(), '^PostgreSQL (\d+\.\d+).*$', e'\\1')::numeric >= 10 as postgres_dba_pgvers_10plus \gset
+\if :postgres_dba_pgvers_10plus
+  \set funcname_last_wal_receive_lsn pg_last_wal_receive_lsn
+  \set funcname_last_wal_replay_lsn pg_last_wal_replay_lsn
+  \set funcname_is_wal_replay_paused pg_is_wal_replay_paused
+  \echo VERSION 10+++
+\else
+  \set funcname_last_wal_receive_lsn pg_last_xlog_receive_location
+  \set funcname_last_wal_replay_lsn pg_last_xlog_replay_location
+  \set funcname_is_wal_replay_paused pg_is_xlog_replay_paused
+  \echo VERS < 10 !!
+\endif
+
 -- TODO: improve work with custom GUCs for Postgres 9.5 and older
 select regexp_replace(version(), '^PostgreSQL (\d+\.\d+).*$', e'\\1')::numeric >= 9.6 as postgres_dba_pgvers_96plus \gset
 \if :postgres_dba_pgvers_96plus
@@ -16,7 +29,7 @@ select regexp_replace(version(), '^PostgreSQL (\d+\.\d+).*$', e'\\1')::numeric >
 \echo '\033[1;35mMenu:\033[0m'
 \echo '   1 – Basic Node Information (master/replica, lag, DB size, tmp files)'
 \echo '   2 – General Table Size Information'
-\echo '  a1 – Alignment Padding Analysis: how many bytes can be saved if columns are ordered better?'
+\echo '  a1 – Alignmet Padding Analysis: how many bytes can be saved if columns are ordered better?'
 \echo '  b1 – Tables Bloat, rough estimation'
 \echo '  b2 – B-tree Indexes Bloat, rough estimation'
 \echo '  b3 – Tables Bloat, more precise (requires pgstattuple extension; expensive)'