1. Multi-column indices support.
2. Fix for function indices with more than 1 attrs.
This commit is contained in:
Vadim B. Mikheev
parent
13f41aa90b
commit
a65dd5290e
@ -21,7 +21,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.27 1997/04/12 09:24:07 scrappy Exp $
|
||||
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.28 1997/05/06 05:20:18 vadim Exp $
|
||||
*
|
||||
* Modifications - 6/10/96 - dave@bensoft.com - version 1.13.dhb
|
||||
*
|
||||
@ -55,6 +55,7 @@
|
||||
#include "postgres.h"
|
||||
#include "access/htup.h"
|
||||
#include "catalog/pg_type.h"
|
||||
#include "catalog/pg_index.h"
|
||||
#include "libpq-fe.h"
|
||||
#ifndef HAVE_STRDUP
|
||||
#include "strdup.h"
|
||||
@ -1142,16 +1143,16 @@ getIndices(int *numIndices)
|
||||
int i_indamname;
|
||||
int i_indproc;
|
||||
int i_indkey;
|
||||
int i_indclassname;
|
||||
int i_indclass;
|
||||
int i_indisunique;
|
||||
|
||||
/* find all the user-defined indices.
|
||||
/*
|
||||
find all the user-defined indices.
|
||||
We do not handle partial indices.
|
||||
We also assume that only single key indices
|
||||
|
||||
skip 'Xinx*' - indices on inversion objects
|
||||
|
||||
this is a 5-way join !!
|
||||
this is a 4-way join !!
|
||||
*/
|
||||
|
||||
res = PQexec(g_conn, "begin");
|
||||
@ -1164,13 +1165,12 @@ getIndices(int *numIndices)
|
||||
|
||||
sprintf(query,
|
||||
"SELECT t1.relname as indexrelname, t2.relname as indrelname, "
|
||||
"i.indproc, i.indkey[0], o.opcname as indclassname, "
|
||||
"a.amname as indamname, i.indisunique from pg_index i, pg_class t1, "
|
||||
"pg_class t2, pg_opclass o, pg_am a "
|
||||
"i.indproc, i.indkey, i.indclass, "
|
||||
"a.amname as indamname, i.indisunique "
|
||||
"from pg_index i, pg_class t1, pg_class t2, pg_am a "
|
||||
"where t1.oid = i.indexrelid and t2.oid = i.indrelid "
|
||||
"and o.oid = i.indclass[0] and t1.relam = a.oid and "
|
||||
"i.indexrelid > '%d'::oid and t2.relname !~ '^pg_' "
|
||||
"and t1.relname !~ '^Xinx' ;",
|
||||
"and t1.relam = a.oid and i.indexrelid > '%d'::oid "
|
||||
"and t2.relname !~ '^pg_' and t1.relname !~ '^Xinx' ;",
|
||||
g_last_builtin_oid);
|
||||
|
||||
res = PQexec(g_conn, query);
|
||||
@ -1191,7 +1191,7 @@ getIndices(int *numIndices)
|
||||
i_indamname = PQfnumber(res,"indamname");
|
||||
i_indproc = PQfnumber(res,"indproc");
|
||||
i_indkey = PQfnumber(res,"indkey");
|
||||
i_indclassname = PQfnumber(res,"indclassname");
|
||||
i_indclass = PQfnumber(res,"indclass");
|
||||
i_indisunique = PQfnumber(res,"indisunique");
|
||||
|
||||
for (i=0;i<ntups;i++) {
|
||||
@ -1199,8 +1199,10 @@ getIndices(int *numIndices)
|
||||
indinfo[i].indrelname = strdup(PQgetvalue(res,i,i_indrelname));
|
||||
indinfo[i].indamname = strdup(PQgetvalue(res,i,i_indamname));
|
||||
indinfo[i].indproc = strdup(PQgetvalue(res,i,i_indproc));
|
||||
indinfo[i].indkey = strdup(PQgetvalue(res,i,i_indkey));
|
||||
indinfo[i].indclassname = strdup(PQgetvalue(res,i,i_indclassname));
|
||||
parseArgTypes ((char **)indinfo[i].indkey,
|
||||
(const char*)PQgetvalue(res,i,i_indkey));
|
||||
parseArgTypes ((char **)indinfo[i].indclass,
|
||||
(const char*)PQgetvalue(res,i,i_indclass));
|
||||
indinfo[i].indisunique = strdup(PQgetvalue(res,i,i_indisunique));
|
||||
}
|
||||
PQclear(res);
|
||||
@ -1634,11 +1636,13 @@ void
|
||||
dumpIndices(FILE* fout, IndInfo* indinfo, int numIndices,
|
||||
TableInfo* tblinfo, int numTables, const char *tablename)
|
||||
{
|
||||
int i;
|
||||
int i, k;
|
||||
int tableInd;
|
||||
const char *attname; /* the name of the indexed attribute */
|
||||
char attlist[1000];
|
||||
char *classname[INDEX_MAX_KEYS];
|
||||
char *funcname; /* the name of the function to comput the index key from*/
|
||||
int indkey;
|
||||
int indkey, indclass;
|
||||
int nclass;
|
||||
|
||||
char q[MAXQUERYLEN];
|
||||
PGresult *res;
|
||||
@ -1646,11 +1650,7 @@ dumpIndices(FILE* fout, IndInfo* indinfo, int numIndices,
|
||||
for (i=0;i<numIndices;i++) {
|
||||
tableInd = findTableByName(tblinfo, numTables,
|
||||
indinfo[i].indrelname);
|
||||
indkey = atoi(indinfo[i].indkey) - 1;
|
||||
if (indkey == ObjectIdAttributeNumber - 1)
|
||||
attname = "oid";
|
||||
else
|
||||
attname = tblinfo[tableInd].attnames[indkey];
|
||||
|
||||
if (strcmp(indinfo[i].indproc,"0") == 0) {
|
||||
funcname = NULL;
|
||||
} else {
|
||||
@ -1664,10 +1664,74 @@ dumpIndices(FILE* fout, IndInfo* indinfo, int numIndices,
|
||||
"where pg_proc.oid = '%s'::oid",
|
||||
indinfo[i].indproc);
|
||||
res = PQexec(g_conn, q);
|
||||
if ( !res || PQresultStatus(res) != PGRES_TUPLES_OK )
|
||||
{
|
||||
fprintf(stderr,"dumpIndices(): SELECT (funcname) failed\n");
|
||||
exit_nicely(g_conn);
|
||||
}
|
||||
funcname = strdup(PQgetvalue(res, 0,
|
||||
PQfnumber(res,"proname")));
|
||||
PQclear(res);
|
||||
}
|
||||
|
||||
/* convert opclass oid(s) into names */
|
||||
for (nclass = 0; nclass < INDEX_MAX_KEYS; nclass++)
|
||||
{
|
||||
indclass = atoi(indinfo[i].indclass[nclass]);
|
||||
if ( indclass == 0 )
|
||||
break;
|
||||
sprintf(q,
|
||||
"SELECT opcname from pg_opclass "
|
||||
"where pg_opclass.oid = '%u'::oid",
|
||||
indclass);
|
||||
res = PQexec(g_conn, q);
|
||||
if ( !res || PQresultStatus(res) != PGRES_TUPLES_OK )
|
||||
{
|
||||
fprintf(stderr,"dumpIndices(): SELECT (classname) failed\n");
|
||||
exit_nicely(g_conn);
|
||||
}
|
||||
classname[nclass] = strdup(PQgetvalue(res, 0,
|
||||
PQfnumber(res,"opcname")));
|
||||
PQclear(res);
|
||||
}
|
||||
|
||||
if ( funcname && nclass != 1 )
|
||||
{
|
||||
fprintf(stderr,"dumpIndices(): Must be exactly one OpClass "
|
||||
"for functional index %s\n", indinfo[i].indexrelname);
|
||||
exit_nicely(g_conn);
|
||||
}
|
||||
|
||||
/* convert attribute numbers into attribute list */
|
||||
for (k = 0, attlist[0] = 0; k < INDEX_MAX_KEYS; k++)
|
||||
{
|
||||
char * attname;
|
||||
|
||||
indkey = atoi(indinfo[i].indkey[k]);
|
||||
if ( indkey == 0 )
|
||||
break;
|
||||
indkey--;
|
||||
if (indkey == ObjectIdAttributeNumber - 1)
|
||||
attname = "oid";
|
||||
else
|
||||
attname = tblinfo[tableInd].attnames[indkey];
|
||||
if ( funcname )
|
||||
sprintf (attlist + strlen(attlist), "%s%s",
|
||||
( k == 0 ) ? "" : ", ", attname);
|
||||
else
|
||||
{
|
||||
if ( k >= nclass )
|
||||
{
|
||||
fprintf(stderr,"dumpIndices(): OpClass not found for "
|
||||
"attribute %s of index %s\n",
|
||||
attname, indinfo[i].indexrelname);
|
||||
exit_nicely(g_conn);
|
||||
}
|
||||
sprintf (attlist + strlen(attlist), "%s%s %s",
|
||||
( k == 0 ) ? "" : ", ", attname, classname[k]);
|
||||
free (classname[k]);
|
||||
}
|
||||
}
|
||||
|
||||
if (!tablename || (!strcmp(indinfo[i].indrelname,tablename))) {
|
||||
|
||||
@ -1677,12 +1741,13 @@ dumpIndices(FILE* fout, IndInfo* indinfo, int numIndices,
|
||||
indinfo[i].indrelname,
|
||||
indinfo[i].indamname);
|
||||
if (funcname) {
|
||||
sprintf(q, "%s %s(%s) %s);\n",
|
||||
q,funcname, attname, indinfo[i].indclassname);
|
||||
sprintf(q, "%s %s (%s) %s );\n",
|
||||
q, funcname, attlist, classname[0]);
|
||||
free(funcname);
|
||||
free(classname[0]);
|
||||
} else
|
||||
sprintf(q, "%s %s %s);\n",
|
||||
q,attname,indinfo[i].indclassname);
|
||||
sprintf(q, "%s %s );\n",
|
||||
q, attlist);
|
||||
|
||||
fputs(q,fout);
|
||||
}
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: pg_dump.h,v 1.12 1997/04/12 09:24:14 scrappy Exp $
|
||||
* $Id: pg_dump.h,v 1.13 1997/05/06 05:20:21 vadim Exp $
|
||||
*
|
||||
* Modifications - 6/12/96 - dave@bensoft.com - version 1.13.dhb.2
|
||||
*
|
||||
@ -87,8 +87,8 @@ typedef struct _indInfo {
|
||||
char *indrelname; /* name of the indexed heap class */
|
||||
char *indamname; /* name of the access method (e.g. btree, rtree, etc.) */
|
||||
char *indproc; /* oid of the function to compute the index, 0 if none*/
|
||||
char *indkey; /* attribute number of the key attribute */
|
||||
char *indclassname; /* name of the opclass of the key */
|
||||
char *indkey[INDEX_MAX_KEYS]; /* attribute numbers of the key attributes */
|
||||
char *indclass[INDEX_MAX_KEYS]; /* opclass of the keys */
|
||||
char *indisunique; /* is this index unique? */
|
||||
} IndInfo;
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user