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Commit57748fc

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> Having read the list, and noticed the message about table inheritance I
> thought that I would see if I could come up with a simple solution, and> have my first delve into the code for PostgreSQL.>> Attached is a diff against 7.3.3 source, of changes to describe.c for> psql. This should print out a list of parent tables in a similar style> to that of the index listing. I have done some testing on my side and it> all seems fine, can some other people have a quick look? What do people> think? Useful?Nick Barr
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‎src/bin/psql/describe.c

Lines changed: 31 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
*
44
* Copyright 2000-2002 by PostgreSQL Global Development Group
55
*
6-
* $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.79 2003/07/23 08:47:39 petere Exp $
6+
* $Header: /cvsroot/pgsql/src/bin/psql/describe.c,v 1.80 2003/07/25 21:42:26 momjian Exp $
77
*/
88
#include"postgres_fe.h"
99
#include"describe.h"
@@ -928,12 +928,14 @@ describeOneTableDetails(const char *schemaname,
928928
*result2=NULL,
929929
*result3=NULL,
930930
*result4=NULL,
931-
*result5=NULL;
931+
*result5=NULL,
932+
*result6=NULL;
932933
intcheck_count=0,
933934
index_count=0,
934935
foreignkey_count=0,
935936
rule_count=0,
936-
trigger_count=0;
937+
trigger_count=0,
938+
inherits_count=0;
937939
intcount_footers=0;
938940

939941
/* count indexes */
@@ -1037,7 +1039,16 @@ describeOneTableDetails(const char *schemaname,
10371039
foreignkey_count=PQntuples(result5);
10381040
}
10391041

1040-
footers=xmalloczero((index_count+check_count+rule_count+trigger_count+foreignkey_count+6)
1042+
/* count inherited tables */
1043+
printfPQExpBuffer(&buf,"SELECT c.relname FROM pg_catalog.pg_class c, pg_catalog.pg_inherits i WHERE c.oid=i.inhparent AND i.inhrelid = '%s' ORDER BY inhseqno ASC",oid);
1044+
1045+
result6=PSQLexec(buf.data, false);
1046+
if (!result6)
1047+
gotoerror_return;
1048+
else
1049+
inherits_count=PQntuples(result6);
1050+
1051+
footers=xmalloczero((index_count+check_count+rule_count+trigger_count+foreignkey_count+inherits_count+6)
10411052
*sizeof(*footers));
10421053

10431054
/* print indexes */
@@ -1140,6 +1151,21 @@ describeOneTableDetails(const char *schemaname,
11401151
}
11411152
}
11421153

1154+
/* print inherits */
1155+
for (i=0;i<inherits_count;i++)
1156+
{
1157+
char*s=_("Inherits");
1158+
1159+
if (i==0)
1160+
printfPQExpBuffer(&buf,"%s: %s",s,PQgetvalue(result6,i,0));
1161+
else
1162+
printfPQExpBuffer(&buf,"%*s %s", (int)strlen(s),"",PQgetvalue(result6,i,0));
1163+
if (i<inherits_count-1)
1164+
appendPQExpBuffer(&buf,",");
1165+
1166+
footers[count_footers++]=xstrdup(buf.data);
1167+
}
1168+
11431169
/* end of list marker */
11441170
footers[count_footers]=NULL;
11451171

@@ -1148,6 +1174,7 @@ describeOneTableDetails(const char *schemaname,
11481174
PQclear(result3);
11491175
PQclear(result4);
11501176
PQclear(result5);
1177+
PQclear(result6);
11511178
}
11521179

11531180
printTable(title.data,headers,

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