@ -3777,6 +3777,220 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
return true ;
}
/*
* \ dP
* Takes an optional regexp to select particular relations
*
* As with \ d , you can specify the kinds of relations you want :
*
* t for tables
* i for indexes
*
* And there ' s additional flags :
*
* n to list non - leaf partitioned tables
*
* and you can mix and match these in any order .
*/
bool
listPartitionedTables ( const char * reltypes , const char * pattern , bool verbose )
{
bool showTables = strchr ( reltypes , ' t ' ) ! = NULL ;
bool showIndexes = strchr ( reltypes , ' i ' ) ! = NULL ;
bool showNested = strchr ( reltypes , ' n ' ) ! = NULL ;
PQExpBufferData buf ;
PQExpBufferData title ;
PGresult * res ;
printQueryOpt myopt = pset . popt ;
bool translate_columns [ ] = { false , false , false , false , false , false , false , false , false } ;
const char * tabletitle ;
bool mixed_output = false ;
/*
* Note : Declarative table partitioning is only supported as of Pg 10.0 .
*/
if ( pset . sversion < 100000 )
{
char sverbuf [ 32 ] ;
pg_log_error ( " The server (version %s) does not support declarative table partitioning. " ,
formatPGVersionNumber ( pset . sversion , false ,
sverbuf , sizeof ( sverbuf ) ) ) ;
return true ;
}
/* If no relation kind was selected, show them all */
if ( ! showTables & & ! showIndexes )
showTables = showIndexes = true ;
if ( showIndexes & & ! showTables )
tabletitle = _ ( " List of partitioned indexes " ) ; /* \dPi */
else if ( showTables & & ! showIndexes )
tabletitle = _ ( " List of partitioned tables " ) ; /* \dPt */
else
{
/* show all kinds */
tabletitle = _ ( " List of partitioned relations " ) ;
mixed_output = true ;
}
initPQExpBuffer ( & buf ) ;
printfPQExpBuffer ( & buf ,
" SELECT n.nspname as \" %s \" , \n "
" c.relname as \" %s \" , \n "
" pg_catalog.pg_get_userbyid(c.relowner) as \" %s \" " ,
gettext_noop ( " Schema " ) ,
gettext_noop ( " Name " ) ,
gettext_noop ( " Owner " ) ) ;
if ( mixed_output )
{
appendPQExpBuffer ( & buf ,
" , \n CASE c.relkind "
" WHEN " CppAsString2 ( RELKIND_PARTITIONED_TABLE ) " THEN '%s' "
" WHEN " CppAsString2 ( RELKIND_PARTITIONED_INDEX ) " THEN '%s' "
" END as \" %s \" " ,
gettext_noop ( " partitioned table " ) ,
gettext_noop ( " partitioned index " ) ,
gettext_noop ( " Type " ) ) ;
translate_columns [ 3 ] = true ;
}
if ( showNested | | pattern )
appendPQExpBuffer ( & buf ,
" , \n c3.oid::regclass as \" %s \" " ,
gettext_noop ( " Parent name " ) ) ;
if ( showIndexes )
appendPQExpBuffer ( & buf ,
" , \n c2.oid::regclass as \" %s \" " ,
gettext_noop ( " On table " ) ) ;
if ( verbose )
{
if ( showNested )
{
appendPQExpBuffer ( & buf ,
" , \n s.dps as \" %s \" " ,
gettext_noop ( " Leaf partition size " ) ) ;
appendPQExpBuffer ( & buf ,
" , \n s.tps as \" %s \" " ,
gettext_noop ( " Total size " ) ) ;
}
else
/* Sizes of all partitions are considered in this case. */
appendPQExpBuffer ( & buf ,
" , \n s.tps as \" %s \" " ,
gettext_noop ( " Total size " ) ) ;
appendPQExpBuffer ( & buf ,
" , \n pg_catalog.obj_description(c.oid, 'pg_class') as \" %s \" " ,
gettext_noop ( " Description " ) ) ;
}
appendPQExpBufferStr ( & buf ,
" \n FROM pg_catalog.pg_class c "
" \n LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace " ) ;
if ( showIndexes )
appendPQExpBufferStr ( & buf ,
" \n LEFT JOIN pg_catalog.pg_index i ON i.indexrelid = c.oid "
" \n LEFT JOIN pg_catalog.pg_class c2 ON i.indrelid = c2.oid " ) ;
if ( showNested | | pattern )
appendPQExpBufferStr ( & buf ,
" \n LEFT JOIN pg_catalog.pg_inherits inh ON c.oid = inh.inhrelid "
" \n LEFT JOIN pg_catalog.pg_class c3 ON c3.oid = inh.inhparent " ) ;
if ( verbose )
{
if ( pset . sversion < 120000 )
{
appendPQExpBuffer ( & buf ,
" , \n LATERAL (WITH RECURSIVE d \n "
" AS (SELECT inhrelid AS oid, 1 AS level \n "
" FROM pg_catalog.pg_inherits \n "
" WHERE inhparent = c.oid \n "
" UNION ALL \n "
" SELECT inhrelid, level + 1 \n "
" FROM pg_catalog.pg_inherits i \n "
" JOIN d ON i.inhparent = d.oid) \n "
" SELECT pg_catalog.pg_size_pretty(sum(pg_catalog.pg_table_size( "
" d.oid))) AS tps, \n "
" pg_catalog.pg_size_pretty(sum( "
" \n CASE WHEN d.level = 1 "
" THEN pg_catalog.pg_table_size(d.oid) ELSE 0 END)) AS dps \n "
" FROM d) s " ) ;
}
else
{
/* PostgreSQL 12 has pg_partition_tree function */
appendPQExpBuffer ( & buf ,
" , \n LATERAL (SELECT pg_catalog.pg_size_pretty(sum( "
" \n CASE WHEN ppt.isleaf AND ppt.level = 1 "
" \n THEN pg_catalog.pg_table_size(ppt.relid) "
" ELSE 0 END)) AS dps "
" , \n pg_catalog.pg_size_pretty(sum( "
" pg_catalog.pg_table_size(ppt.relid))) AS tps "
" \n FROM pg_catalog.pg_partition_tree(c.oid) ppt) s " ) ;
}
}
appendPQExpBufferStr ( & buf , " \n WHERE c.relkind IN ( " ) ;
if ( showTables )
appendPQExpBufferStr ( & buf , CppAsString2 ( RELKIND_PARTITIONED_TABLE ) " , " ) ;
if ( showIndexes )
appendPQExpBufferStr ( & buf , CppAsString2 ( RELKIND_PARTITIONED_INDEX ) " , " ) ;
appendPQExpBufferStr ( & buf , " '' " ) ; /* dummy */
appendPQExpBufferStr ( & buf , " ) \n " ) ;
appendPQExpBufferStr ( & buf , ! showNested & & ! pattern ?
" AND NOT c.relispartition \n " : " " ) ;
if ( ! pattern )
appendPQExpBufferStr ( & buf , " AND n.nspname <> 'pg_catalog' \n "
" AND n.nspname <> 'information_schema' \n " ) ;
/*
* TOAST objects are suppressed unconditionally . Since we don ' t provide
* any way to select RELKIND_TOASTVALUE above , we would never show toast
* tables in any case ; it seems a bit confusing to allow their indexes to
* be shown . Use plain \ d if you really need to look at a TOAST
* table / index .
*/
appendPQExpBufferStr ( & buf , " AND n.nspname !~ '^pg_toast' \n " ) ;
processSQLNamePattern ( pset . db , & buf , pattern , true , false ,
" n.nspname " , " c.relname " , NULL ,
" pg_catalog.pg_table_is_visible(c.oid) " ) ;
appendPQExpBuffer ( & buf , " ORDER BY \" Schema \" , %s%s \" Name \" ; " ,
mixed_output ? " \" Type \" DESC, " : " " ,
showNested | | pattern ? " \" Parent name \" NULLS FIRST, " : " " ) ;
res = PSQLexec ( buf . data ) ;
termPQExpBuffer ( & buf ) ;
if ( ! res )
return false ;
initPQExpBuffer ( & title ) ;
appendPQExpBuffer ( & title , " %s " , tabletitle ) ;
myopt . nullPrint = NULL ;
myopt . title = title . data ;
myopt . translate_header = true ;
myopt . translate_columns = translate_columns ;
myopt . n_translate_columns = lengthof ( translate_columns ) ;
printQuery ( res , & myopt , pset . queryFout , false , pset . logfile ) ;
termPQExpBuffer ( & title ) ;
PQclear ( res ) ;
return true ;
}
/*
* \ dL
Alvaro Herrera
7 years ago