pg_dump.c

/*-------------------------------------------------------------------------
 *
 * pg_dump.c--
 *	  pg_dump is an utility for dumping out a postgres database
 * into a script file.
 *
 *	pg_dump will read the system catalogs in a database and
 *	dump out a script that reproduces
 *	the schema of the database in terms of
 *		  user-defined types
 *		  user-defined functions
 *		  tables
 *		  indices
 *		  aggregates
 *		  operators
 *		  ACL - grant/revoke
 *
 * the output script is SQL that is understood by PostgreSQL
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *	  $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.49 1997/10/02 13:57:05 vadim Exp $
 *
 * Modifications - 6/10/96 - dave@bensoft.com - version 1.13.dhb
 *
 *	 Applied 'insert string' patch from "Marc G. Fournier" <scrappy@ki.net>
 *	 Added '-t table' option
 *	 Added '-a' option
 *	 Added '-da' option
 *
 * Modifications - 6/12/96 - dave@bensoft.com - version 1.13.dhb.2
 *
 *	 - Fixed dumpTable output to output lengths for char and varchar types!
 *	 - Added single. quote to twin single quote expansion for 'insert' string
 *	   mode.
 *
 * Modifications - 7/26/96 - asussman@vidya.com
 *
 *	 - Fixed ouput lengths for char and varchar type where the length is variable (-1)
 *
 * Modifications - 6/1/97 - igor@sba.miami.edu
 * - Added functions to free allocated memory used for retrieving
 *	 indices,tables,inheritance,types,functions and aggregates.
 *	 No more leaks reported by Purify.
 *-------------------------------------------------------------------------
 */

#include <stdlib.h>
#include <unistd.h>				/* for getopt() */
#include <stdio.h>
#include <string.h>
#include <sys/param.h>			/* for MAXHOSTNAMELEN on most */
#ifdef sparc_solaris
#include <netdb.h>				/* for MAXHOSTNAMELEN on some */
#endif

#include "postgres.h"
#include "access/htup.h"
#include "catalog/pg_type.h"
#include "catalog/pg_language.h"
#include "catalog/pg_index.h"
#include "catalog/pg_trigger.h"
#include "libpq-fe.h"
#ifndef HAVE_STRDUP
#include "strdup.h"
#endif

#include "pg_dump.h"

static void dumpSequence(FILE *fout, TableInfo tbinfo);
static void	dumpTriggers(FILE *fout, const char *tablename, 
						TableInfo *tblinfo, int numTables);
static char *checkForQuote(const char *s);
static void clearTableInfo(TableInfo *, int);
static void
dumpOneFunc(FILE *fout, FuncInfo *finfo, int i,
			TypeInfo *tinfo, int numTypes);
static int	findLastBuiltinOid(void);
static bool isViewRule(char *relname);
static void setMaxOid(FILE *fout);

extern char *optarg;
extern int	optind,
			opterr;

/* global decls */
bool		g_verbose;			/* User wants verbose narration of our
								 * activities. */
int			g_last_builtin_oid; /* value of the last builtin oid */
FILE	   *g_fout;				/* the script file */
PGconn	   *g_conn;				/* the database connection */
int			dumpData;			/* dump data using proper insert strings */
int			attrNames;			/* put attr names into insert strings */
int			schemaOnly;
int			dataOnly;

char		g_opaque_type[10];	/* name for the opaque type */

/* placeholders for the delimiters for comments */
char		g_comment_start[10];
char		g_comment_end[10];


static void
usage(const char *progname)
{
	fprintf(stderr,
			"%s - version 1.13.dhb.2\n\n", progname);
	fprintf(stderr,
			"usage:  %s [options] [dbname]\n", progname);
	fprintf(stderr,
			"\t -f filename \t\t script output filename\n");
	fprintf(stderr,
			"\t -H hostname \t\t server host name\n");
	fprintf(stderr,
			"\t -p port     \t\t server port number\n");
	fprintf(stderr,
			"\t -v          \t\t verbose\n");
	fprintf(stderr,
			"\t -d          \t\t dump data as proper insert strings\n");
	fprintf(stderr,
	  "\t -D          \t\t dump data as inserts with attribute names\n");
	fprintf(stderr,
			"\t -S          \t\t dump out only the schema, no data\n");
	fprintf(stderr,
			"\t -a          \t\t dump out only the data, no schema\n");
	fprintf(stderr,
			"\t -t table    \t\t dump for this table only\n");
	fprintf(stderr,
			"\t -o          \t\t dump object id's (oids)\n");
	fprintf(stderr,
			"\t -z          \t\t dump ACLs (grant/revoke)\n");
	fprintf(stderr,
			"\nIf dbname is not supplied, then the DATABASE environment "
			"variable value is used.\n");
	fprintf(stderr, "\n");

	exit(1);
}

static void
exit_nicely(PGconn *conn)
{
	PQfinish(conn);
	exit(1);
}


/*
 * isViewRule
 *				Determine if the relation is a VIEW
 *
 */
static bool
isViewRule(char *relname)
{
	PGresult   *res;
	int			ntups;
	char		query[MAXQUERYLEN];

	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query, "select relname from pg_class, pg_rewrite "
			"where pg_class.oid = ev_class "
			"and rulename = '_RET%s'", relname);

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "isViewRule(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);

	PQclear(res);
	res = PQexec(g_conn, "end");
	PQclear(res);
	return ntups > 0 ? TRUE : FALSE;
}

#define COPYBUFSIZ		8192


static void
dumpClasses_nodumpData(FILE *fout, const char *classname, const bool oids)
{

	PGresult   *res;
	char		query[255];
	int			ret;
	bool		copydone;
	char		copybuf[COPYBUFSIZ];

	if (oids)
	{
		fprintf(fout, "COPY %s WITH OIDS FROM stdin;\n",
				classname);
		sprintf(query, "COPY %s WITH OIDS TO stdout;\n",
				classname);
	}
	else
	{
		fprintf(fout, "COPY %s FROM stdin;\n", classname);
		sprintf(query, "COPY %s TO stdout;\n", classname);
	}
	res = PQexec(g_conn, query);
	if (!res)
	{
		fprintf(stderr, "SQL query to dump the contents of Table %s "
				"did not execute.  Explanation from backend: '%s'.\n"
				"The query was: '%s'.\n",
				classname, PQerrorMessage(g_conn), query);
		exit_nicely(g_conn);
	}
	else
	{
		if (PQresultStatus(res) != PGRES_COPY_OUT)
		{
			fprintf(stderr, "SQL query to dump the contents of Table %s "
					"executed abnormally.\n"
					"PQexec() returned status %d when %d was expected.\n"
					"The query was: '%s'.\n",
				  classname, PQresultStatus(res), PGRES_COPY_OUT, query);
			exit_nicely(g_conn);
		}
		else
		{
			copydone = false;
			while (!copydone)
			{
				ret = PQgetline(res->conn, copybuf, COPYBUFSIZ);

				if (copybuf[0] == '\\' &&
					copybuf[1] == '.' &&
					copybuf[2] == '\0')
				{
					copydone = true;	/* don't print this... */
				}
				else
				{
					fputs(copybuf, fout);
					switch (ret)
					{
						case EOF:
							copydone = true;
							/* FALLTHROUGH */
						case 0:
							fputc('\n', fout);
							break;
						case 1:
							break;
					}
				}
			}
			fprintf(fout, "\\.\n");
		}
		ret = PQendcopy(res->conn);
		if (ret != 0)
		{
			fprintf(stderr, "SQL query to dump the contents of Table %s "
					"did not execute correctly.  After we read all the "
				 "table contents from the backend, PQendcopy() failed.  "
					"Explanation from backend: '%s'.\n"
					"The query was: '%s'.\n",
					classname, PQerrorMessage(g_conn), query);
			if (res)
				PQclear(res);
			exit_nicely(g_conn);
		}
		if (res)
			PQclear(res);
	}
}



static void
dumpClasses_dumpData(FILE *fout, const char *classname,
					 const TableInfo tblinfo, bool oids)
{

	PGresult   *res;
	char		query[255];
	int			actual_atts;	/* number of attrs in this a table */
	char		expandbuf[COPYBUFSIZ];
	char		q[MAXQUERYLEN];
	int			tuple;
	int			field;

	sprintf(query, "select * from %s", classname);
	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "dumpClasses(): command failed\n");
		exit_nicely(g_conn);
	}
	tuple = 0;
	while (tuple < PQntuples(res))
	{
		fprintf(fout, "insert into %s ", classname);
		if (attrNames)
		{
			int			j;

			actual_atts = 0;
			sprintf(q, "(");
			for (j = 0; j < tblinfo.numatts; j++)
			{
				if (tblinfo.inhAttrs[j] == 0)
				{
					sprintf(q, "%s%s%s",
							q,
							(actual_atts > 0) ? "," : "",
							tblinfo.attnames[j]);
					actual_atts++;
				}
			}
			sprintf(q, "%s%s", q, ") ");
			fprintf(fout, q);
		}
		fprintf(fout, "values (");
		field = 0;
		do
		{
			if (PQgetisnull(res, tuple, field))
			{
				fprintf(fout, "NULL");
			}
			else
			{
				switch (PQftype(res, field))
				{
					case INT2OID:
					case INT4OID:
					case OIDOID:		/* int types */
					case FLOAT4OID:
					case FLOAT8OID:		/* float types */
						fprintf(fout, "%s",
								PQgetvalue(res, tuple, field));
						break;
					default:
						{
							char	   *expsrc,
									   *expdest;

							/*
							 * Before outputting string value, expand all
							 * single quotes to twin single quotes - dhb -
							 * 6/11/96
							 */
							expsrc = PQgetvalue(res, tuple, field);
							expdest = expandbuf;
							while (*expsrc)
							{
								*expdest++ = *expsrc;
								if (*expsrc == (char) 0x27)		/* single quote */
									*expdest++ = *expsrc;
								expsrc++;
							}
							*expdest = *expsrc; /* null term. */

							fprintf(fout, "'%s'", expandbuf);
						}
						break;
				}
			}
			field++;
			if (field != PQnfields(res))
				fprintf(fout, ",");
		} while (field < PQnfields(res));
		fprintf(fout, ");\n");
		tuple++;
	}
	PQclear(res);
}



/*
 * DumpClasses -
 *	  dump the contents of all the classes.
 */
static void
dumpClasses(const TableInfo tblinfo[], const int numTables, FILE *fout,
			const char *onlytable, const bool oids)
{

	int			i;
	char	   *all_only;

	if (onlytable == NULL)
		all_only = "all";
	else
		all_only = "one";

	if (g_verbose)
		fprintf(stderr, "%s dumping out the contents of %s of %d tables %s\n",
				g_comment_start, all_only, numTables, g_comment_end);
	
	/* Dump SEQUENCEs first (if dataOnly) */
	if (dataOnly)
	{
		for (i = 0; i < numTables; i++)
		{
			if (!(tblinfo[i].sequence))
				continue;
			if (!onlytable || (!strcmp(tblinfo[i].relname, onlytable)))
			{
				if (g_verbose)
					fprintf(stderr, "%s dumping out schema of sequence %s %s\n",
						  g_comment_start, tblinfo[i].relname, g_comment_end);
				fprintf(fout, "\\connect - %s\n", tblinfo[i].usename);
				dumpSequence(fout, tblinfo[i]);
			}
		}
	}

	for (i = 0; i < numTables; i++)
	{
		const char *classname = tblinfo[i].relname;

		/* Skip VIEW relations */
		if (isViewRule(tblinfo[i].relname))
			continue;
		
		if (tblinfo[i].sequence)	/* already dumped */
			continue;

		if (!onlytable || (!strcmp(classname, onlytable)))
		{
			if (g_verbose)
				fprintf(stderr, "%s dumping out the contents of Table %s %s\n",
						g_comment_start, classname, g_comment_end);

			/* skip archive names */
			if (isArchiveName(classname))
				continue;

			if (!dumpData)
				dumpClasses_nodumpData(fout, classname, oids);
			else
				dumpClasses_dumpData(fout, classname, tblinfo[i], oids);
		}
	}
}



int
main(int argc, char **argv)
{
	int			c;
	const char *progname;
	const char *filename = NULL;
	const char *dbname = NULL;
	const char *pghost = NULL;
	const char *pgport = NULL;
	const char *tablename = NULL;
	int			oids = 0,
				acls = 0;
	TableInfo  *tblinfo;
	int			numTables;

	g_verbose = false;

	strcpy(g_comment_start, "-- ");
	g_comment_end[0] = '\0';
	strcpy(g_opaque_type, "opaque");

	dataOnly = schemaOnly = dumpData = attrNames = 0;

	progname = *argv;

	while ((c = getopt(argc, argv, "f:H:p:t:vSDdDaoz")) != EOF)
	{
		switch (c)
		{
			case 'f':			/* output file name */
				filename = optarg;
				break;
			case 'H':			/* server host */
				pghost = optarg;
				break;
			case 'p':			/* server port */
				pgport = optarg;
				break;
			case 'v':			/* verbose */
				g_verbose = true;
				break;
			case 'S':			/* dump schema only */
				schemaOnly = 1;
				break;
			case 'd':			/* dump data as proper insert strings */
				dumpData = 1;
				break;
			case 'D':			/* dump data as proper insert strings with
								 * attr names */
				dumpData = 1;
				attrNames = 1;
				break;
			case 't':			/* Dump data for this table only */
				tablename = optarg;
				break;
			case 'a':			/* Dump data only */
				dataOnly = 1;
				break;
			case 'o':			/* Dump oids */
				oids = 1;
				break;
			case 'z':			/* Dump oids */
				acls = 1;
				break;
			default:
				usage(progname);
				break;
		}
	}

	/* open the output file */
	if (filename == NULL)
	{
		g_fout = stdout;
	}
	else
	{
		g_fout = fopen(filename, "w");
		if (g_fout == NULL)
		{
			fprintf(stderr,
				 "%s: could not open output file named %s for writing\n",
					progname, filename);
			exit(2);
		}
	}

	/* find database */
	if (!(dbname = argv[optind]) &&
		!(dbname = getenv("DATABASE")))
	{
		fprintf(stderr, "%s: no database name specified\n", progname);
		exit(2);
	}

	g_conn = PQsetdb(pghost, pgport, NULL, NULL, dbname);
	/* check to see that the backend connection was successfully made */
	if (PQstatus(g_conn) == CONNECTION_BAD)
	{
		fprintf(stderr, "Connection to database '%s' failed.\n", dbname);
		fprintf(stderr, "%s\n", PQerrorMessage(g_conn));
		exit_nicely(g_conn);
	}

	g_last_builtin_oid = findLastBuiltinOid();

	if (oids)
		setMaxOid(g_fout);
	if (!dataOnly)
	{
		if (g_verbose)
			fprintf(stderr, "%s last builtin oid is %d %s\n",
					g_comment_start, g_last_builtin_oid, g_comment_end);
		tblinfo = dumpSchema(g_fout, &numTables, tablename, acls);
	}
	else
		tblinfo = dumpSchema(NULL, &numTables, tablename, acls);

	if (!schemaOnly)
	{
		dumpClasses(tblinfo, numTables, g_fout, tablename, oids);
	}

	if (!dataOnly)		/* dump indexes and triggers at the end for performance */
	{
		dumpSchemaIdx(g_fout, tablename, tblinfo, numTables);
		dumpTriggers(g_fout, tablename, tblinfo, numTables);
	}

	fflush(g_fout);
	fclose(g_fout);
	clearTableInfo(tblinfo, numTables);
	PQfinish(g_conn);
	exit(0);
}

/*
 * getTypes:
 *	  read all base types in the system catalogs and return them in the
 * TypeInfo* structure
 *
 *	numTypes is set to the number of types read in
 *
 */
TypeInfo   *
getTypes(int *numTypes)
{
	PGresult   *res;
	int			ntups;
	int			i;
	char		query[MAXQUERYLEN];
	TypeInfo   *tinfo;

	int			i_oid;
	int			i_typowner;
	int			i_typname;
	int			i_typlen;
	int			i_typprtlen;
	int			i_typinput;
	int			i_typoutput;
	int			i_typreceive;
	int			i_typsend;
	int			i_typelem;
	int			i_typdelim;
	int			i_typdefault;
	int			i_typrelid;
	int			i_typbyval;
	int			i_usename;

	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	/* find all base types */

	/*
	 * we include even the built-in types because those may be used as
	 * array elements by user-defined types
	 */

	/*
	 * we filter out the built-in types when we dump out the types
	 */

	sprintf(query, "SELECT pg_type.oid, typowner,typname, typlen, typprtlen, "
		  "typinput, typoutput, typreceive, typsend, typelem, typdelim, "
		  "typdefault, typrelid,typbyval, usename from pg_type, pg_user "
			"where typowner = usesysid");

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getTypes(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);

	tinfo = (TypeInfo *) malloc(ntups * sizeof(TypeInfo));

	i_oid = PQfnumber(res, "oid");
	i_typowner = PQfnumber(res, "typowner");
	i_typname = PQfnumber(res, "typname");
	i_typlen = PQfnumber(res, "typlen");
	i_typprtlen = PQfnumber(res, "typprtlen");
	i_typinput = PQfnumber(res, "typinput");
	i_typoutput = PQfnumber(res, "typoutput");
	i_typreceive = PQfnumber(res, "typreceive");
	i_typsend = PQfnumber(res, "typsend");
	i_typelem = PQfnumber(res, "typelem");
	i_typdelim = PQfnumber(res, "typdelim");
	i_typdefault = PQfnumber(res, "typdefault");
	i_typrelid = PQfnumber(res, "typrelid");
	i_typbyval = PQfnumber(res, "typbyval");
	i_usename = PQfnumber(res, "usename");

	for (i = 0; i < ntups; i++)
	{
		tinfo[i].oid = strdup(PQgetvalue(res, i, i_oid));
		tinfo[i].typowner = strdup(PQgetvalue(res, i, i_typowner));
		tinfo[i].typname = strdup(PQgetvalue(res, i, i_typname));
		tinfo[i].typlen = strdup(PQgetvalue(res, i, i_typlen));
		tinfo[i].typprtlen = strdup(PQgetvalue(res, i, i_typprtlen));
		tinfo[i].typinput = strdup(PQgetvalue(res, i, i_typinput));
		tinfo[i].typoutput = strdup(PQgetvalue(res, i, i_typoutput));
		tinfo[i].typreceive = strdup(PQgetvalue(res, i, i_typreceive));
		tinfo[i].typsend = strdup(PQgetvalue(res, i, i_typsend));
		tinfo[i].typelem = strdup(PQgetvalue(res, i, i_typelem));
		tinfo[i].typdelim = strdup(PQgetvalue(res, i, i_typdelim));
		tinfo[i].typdefault = strdup(PQgetvalue(res, i, i_typdefault));
		tinfo[i].typrelid = strdup(PQgetvalue(res, i, i_typrelid));
		tinfo[i].usename = strdup(PQgetvalue(res, i, i_usename));

		if (strcmp(PQgetvalue(res, i, i_typbyval), "f") == 0)
			tinfo[i].passedbyvalue = 0;
		else
			tinfo[i].passedbyvalue = 1;

		/*
		 * check for user-defined array types, omit system generated ones
		 */
		if ((strcmp(tinfo[i].typelem, "0") != 0) &&
			tinfo[i].typname[0] != '_')
			tinfo[i].isArray = 1;
		else
			tinfo[i].isArray = 0;
	}

	*numTypes = ntups;

	PQclear(res);

	res = PQexec(g_conn, "end");
	PQclear(res);

	return tinfo;
}

/*
 * getOperators:
 *	  read all operators in the system catalogs and return them in the
 * OprInfo* structure
 *
 *	numOprs is set to the number of operators read in
 *
 *
 */
OprInfo    *
getOperators(int *numOprs)
{
	PGresult   *res;
	int			ntups;
	int			i;
	char		query[MAXQUERYLEN];

	OprInfo    *oprinfo;

	int			i_oid;
	int			i_oprname;
	int			i_oprkind;
	int			i_oprcode;
	int			i_oprleft;
	int			i_oprright;
	int			i_oprcom;
	int			i_oprnegate;
	int			i_oprrest;
	int			i_oprjoin;
	int			i_oprcanhash;
	int			i_oprlsortop;
	int			i_oprrsortop;
	int			i_usename;

	/*
	 * find all operators, including builtin operators, filter out
	 * system-defined operators at dump-out time
	 */
	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query, "SELECT pg_operator.oid, oprname, oprkind, oprcode, "
			"oprleft, oprright, oprcom, oprnegate, oprrest, oprjoin, "
			"oprcanhash, oprlsortop, oprrsortop, usename "
			"from pg_operator, pg_user "
			"where oprowner = usesysid");

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getOperators(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);
	*numOprs = ntups;

	oprinfo = (OprInfo *) malloc(ntups * sizeof(OprInfo));

	i_oid = PQfnumber(res, "oid");
	i_oprname = PQfnumber(res, "oprname");
	i_oprkind = PQfnumber(res, "oprkind");
	i_oprcode = PQfnumber(res, "oprcode");
	i_oprleft = PQfnumber(res, "oprleft");
	i_oprright = PQfnumber(res, "oprright");
	i_oprcom = PQfnumber(res, "oprcom");
	i_oprnegate = PQfnumber(res, "oprnegate");
	i_oprrest = PQfnumber(res, "oprrest");
	i_oprjoin = PQfnumber(res, "oprjoin");
	i_oprcanhash = PQfnumber(res, "oprcanhash");
	i_oprlsortop = PQfnumber(res, "oprlsortop");
	i_oprrsortop = PQfnumber(res, "oprrsortop");
	i_usename = PQfnumber(res, "usename");

	for (i = 0; i < ntups; i++)
	{
		oprinfo[i].oid = strdup(PQgetvalue(res, i, i_oid));
		oprinfo[i].oprname = strdup(PQgetvalue(res, i, i_oprname));
		oprinfo[i].oprkind = strdup(PQgetvalue(res, i, i_oprkind));
		oprinfo[i].oprcode = strdup(PQgetvalue(res, i, i_oprcode));
		oprinfo[i].oprleft = strdup(PQgetvalue(res, i, i_oprleft));
		oprinfo[i].oprright = strdup(PQgetvalue(res, i, i_oprright));
		oprinfo[i].oprcom = strdup(PQgetvalue(res, i, i_oprcom));
		oprinfo[i].oprnegate = strdup(PQgetvalue(res, i, i_oprnegate));
		oprinfo[i].oprrest = strdup(PQgetvalue(res, i, i_oprrest));
		oprinfo[i].oprjoin = strdup(PQgetvalue(res, i, i_oprjoin));
		oprinfo[i].oprcanhash = strdup(PQgetvalue(res, i, i_oprcanhash));
		oprinfo[i].oprlsortop = strdup(PQgetvalue(res, i, i_oprlsortop));
		oprinfo[i].oprrsortop = strdup(PQgetvalue(res, i, i_oprrsortop));
		oprinfo[i].usename = strdup(PQgetvalue(res, i, i_usename));
	}

	PQclear(res);
	res = PQexec(g_conn, "end");
	PQclear(res);

	return oprinfo;
}

void
clearTypeInfo(TypeInfo *tp, int numTypes)
{
	int			i;

	for (i = 0; i < numTypes; ++i)
	{
		if (tp[i].oid)
			free(tp[i].oid);
		if (tp[i].typowner)
			free(tp[i].typowner);
		if (tp[i].typname)
			free(tp[i].typname);
		if (tp[i].typlen)
			free(tp[i].typlen);
		if (tp[i].typprtlen)
			free(tp[i].typprtlen);
		if (tp[i].typinput)
			free(tp[i].typinput);
		if (tp[i].typoutput)
			free(tp[i].typoutput);
		if (tp[i].typreceive)
			free(tp[i].typreceive);
		if (tp[i].typsend)
			free(tp[i].typsend);
		if (tp[i].typelem)
			free(tp[i].typelem);
		if (tp[i].typdelim)
			free(tp[i].typdelim);
		if (tp[i].typdefault)
			free(tp[i].typdefault);
		if (tp[i].typrelid)
			free(tp[i].typrelid);
		if (tp[i].usename)
			free(tp[i].usename);
	}
	free(tp);
}

void
clearFuncInfo(FuncInfo *fun, int numFuncs)
{
	int			i,
				a;

	if (!fun)
		return;
	for (i = 0; i < numFuncs; ++i)
	{
		if (fun[i].oid)
			free(fun[i].oid);
		if (fun[i].proname)
			free(fun[i].proname);
		if (fun[i].usename)
			free(fun[i].usename);
		for (a = 0; a < 8; ++a)
			if (fun[i].argtypes[a])
				free(fun[i].argtypes[a]);
		if (fun[i].prorettype)
			free(fun[i].prorettype);
		if (fun[i].prosrc)
			free(fun[i].prosrc);
		if (fun[i].probin)
			free(fun[i].probin);
	}
	free(fun);
}

static void
clearTableInfo(TableInfo *tblinfo, int numTables)
{
	int			i,
				j;

	for (i = 0; i < numTables; ++i)
	{

		if (tblinfo[i].oid)
			free(tblinfo[i].oid);
		if (tblinfo[i].relarch)
			free(tblinfo[i].relarch);
		if (tblinfo[i].relacl)
			free(tblinfo[i].relacl);
		if (tblinfo[i].usename)
			free(tblinfo[i].usename);

		/* skip archive tables */
		if (isArchiveName(tblinfo[i].relname))
		{
			if (tblinfo[i].relname)
				free(tblinfo[i].relname);
			continue;
		}
		if (tblinfo[i].relname)
			free(tblinfo[i].relname);

		if (tblinfo[i].sequence)
			continue;

		/* Process Attributes */
		for (j = 0; j < tblinfo[i].numatts; j++)
		{
			if (tblinfo[i].attnames[j])
				free(tblinfo[i].attnames[j]);
			if (tblinfo[i].typnames[j])
				free(tblinfo[i].typnames[j]);
		}
		if (tblinfo[i].attlen)
			free((int *) tblinfo[i].attlen);
		if (tblinfo[i].inhAttrs)
			free((int *) tblinfo[i].inhAttrs);
		if (tblinfo[i].attnames)
			free(tblinfo[i].attnames);
		if (tblinfo[i].typnames)
			free(tblinfo[i].typnames);
		if (tblinfo[i].notnull)
			free(tblinfo[i].notnull);

	}
	free(tblinfo);
}

void
clearInhInfo(InhInfo *inh, int numInherits)
{
	int			i;

	if (!inh)
		return;
	for (i = 0; i < numInherits; ++i)
	{
		if (inh[i].inhrel)
			free(inh[i].inhrel);
		if (inh[i].inhparent)
			free(inh[i].inhparent);
	}
	free(inh);
}

void
clearOprInfo(OprInfo *opr, int numOprs)
{
	int			i;

	if (!opr)
		return;
	for (i = 0; i < numOprs; ++i)
	{
		if (opr[i].oid)
			free(opr[i].oid);
		if (opr[i].oprname)
			free(opr[i].oprname);
		if (opr[i].oprkind)
			free(opr[i].oprkind);
		if (opr[i].oprcode)
			free(opr[i].oprcode);
		if (opr[i].oprleft)
			free(opr[i].oprleft);
		if (opr[i].oprright)
			free(opr[i].oprright);
		if (opr[i].oprcom)
			free(opr[i].oprcom);
		if (opr[i].oprnegate)
			free(opr[i].oprnegate);
		if (opr[i].oprrest)
			free(opr[i].oprrest);
		if (opr[i].oprjoin)
			free(opr[i].oprjoin);
		if (opr[i].oprcanhash)
			free(opr[i].oprcanhash);
		if (opr[i].oprlsortop)
			free(opr[i].oprlsortop);
		if (opr[i].oprrsortop)
			free(opr[i].oprrsortop);
		if (opr[i].usename)
			free(opr[i].usename);
	}
	free(opr);
}

void
clearIndInfo(IndInfo *ind, int numIndices)
{
	int			i,
				a;

	if (!ind)
		return;
	for (i = 0; i < numIndices; ++i)
	{
		if (ind[i].indexrelname)
			free(ind[i].indexrelname);
		if (ind[i].indrelname)
			free(ind[i].indrelname);
		if (ind[i].indamname)
			free(ind[i].indamname);
		if (ind[i].indproc)
			free(ind[i].indproc);
		if (ind[i].indisunique)
			free(ind[i].indisunique);
		for (a = 0; a < INDEX_MAX_KEYS; ++a)
		{
			if (ind[i].indkey[a])
				free(ind[i].indkey[a]);
			if (ind[i].indclass[a])
				free(ind[i].indclass[a]);
		}
	}
	free(ind);
}

void
clearAggInfo(AggInfo *agginfo, int numArgs)
{
	int			i;

	if (!agginfo)
		return;
	for (i = 0; i < numArgs; ++i)
	{
		if (agginfo[i].oid)
			free(agginfo[i].oid);
		if (agginfo[i].aggname)
			free(agginfo[i].aggname);
		if (agginfo[i].aggtransfn1)
			free(agginfo[i].aggtransfn1);
		if (agginfo[i].aggtransfn2)
			free(agginfo[i].aggtransfn2);
		if (agginfo[i].aggfinalfn)
			free(agginfo[i].aggfinalfn);
		if (agginfo[i].aggtranstype1)
			free(agginfo[i].aggtranstype1);
		if (agginfo[i].aggbasetype)
			free(agginfo[i].aggbasetype);
		if (agginfo[i].aggtranstype2)
			free(agginfo[i].aggtranstype2);
		if (agginfo[i].agginitval1)
			free(agginfo[i].agginitval1);
		if (agginfo[i].agginitval2)
			free(agginfo[i].agginitval2);
		if (agginfo[i].usename)
			free(agginfo[i].usename);
	}
	free(agginfo);
}

/*
 * getAggregates:
 *	  read all the user-defined aggregates in the system catalogs and
 * return them in the AggInfo* structure
 *
 * numAggs is set to the number of aggregates read in
 *
 *
 */
AggInfo    *
getAggregates(int *numAggs)
{
	PGresult   *res;
	int			ntups;
	int			i;
	char		query[MAXQUERYLEN];
	AggInfo    *agginfo;

	int			i_oid;
	int			i_aggname;
	int			i_aggtransfn1;
	int			i_aggtransfn2;
	int			i_aggfinalfn;
	int			i_aggtranstype1;
	int			i_aggbasetype;
	int			i_aggtranstype2;
	int			i_agginitval1;
	int			i_agginitval2;
	int			i_usename;

	/* find all user-defined aggregates */

	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query,
			"SELECT pg_aggregate.oid, aggname, aggtransfn1, aggtransfn2, "
			"aggfinalfn, aggtranstype1, aggbasetype, aggtranstype2, "
		  "agginitval1, agginitval2, usename from pg_aggregate, pg_user "
			"where aggowner = usesysid");

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getAggregates(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);
	*numAggs = ntups;

	agginfo = (AggInfo *) malloc(ntups * sizeof(AggInfo));

	i_oid = PQfnumber(res, "oid");
	i_aggname = PQfnumber(res, "aggname");
	i_aggtransfn1 = PQfnumber(res, "aggtransfn1");
	i_aggtransfn2 = PQfnumber(res, "aggtransfn2");
	i_aggfinalfn = PQfnumber(res, "aggfinalfn");
	i_aggtranstype1 = PQfnumber(res, "aggtranstype1");
	i_aggbasetype = PQfnumber(res, "aggbasetype");
	i_aggtranstype2 = PQfnumber(res, "aggtranstype2");
	i_agginitval1 = PQfnumber(res, "agginitval1");
	i_agginitval2 = PQfnumber(res, "agginitval2");
	i_usename = PQfnumber(res, "usename");

	for (i = 0; i < ntups; i++)
	{
		agginfo[i].oid = strdup(PQgetvalue(res, i, i_oid));
		agginfo[i].aggname = strdup(PQgetvalue(res, i, i_aggname));
		agginfo[i].aggtransfn1 = strdup(PQgetvalue(res, i, i_aggtransfn1));
		agginfo[i].aggtransfn2 = strdup(PQgetvalue(res, i, i_aggtransfn2));
		agginfo[i].aggfinalfn = strdup(PQgetvalue(res, i, i_aggfinalfn));
		agginfo[i].aggtranstype1 = strdup(PQgetvalue(res, i, i_aggtranstype1));
		agginfo[i].aggbasetype = strdup(PQgetvalue(res, i, i_aggbasetype));
		agginfo[i].aggtranstype2 = strdup(PQgetvalue(res, i, i_aggtranstype2));
		agginfo[i].agginitval1 = strdup(PQgetvalue(res, i, i_agginitval1));
		agginfo[i].agginitval2 = strdup(PQgetvalue(res, i, i_agginitval2));
		agginfo[i].usename = strdup(PQgetvalue(res, i, i_usename));
	}

	PQclear(res);

	res = PQexec(g_conn, "end");
	PQclear(res);
	return agginfo;
}

/*
 * getFuncs:
 *	  read all the user-defined functions in the system catalogs and
 * return them in the FuncInfo* structure
 *
 * numFuncs is set to the number of functions read in
 *
 *
 */
FuncInfo   *
getFuncs(int *numFuncs)
{
	PGresult   *res;
	int			ntups;
	int			i;
	char		query[MAXQUERYLEN];
	FuncInfo   *finfo;

	int			i_oid;
	int			i_proname;
	int			i_prolang;
	int			i_pronargs;
	int			i_proargtypes;
	int			i_prorettype;
	int			i_proretset;
	int			i_prosrc;
	int			i_probin;
	int			i_usename;

	/* find all user-defined funcs */

	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query,
			"SELECT pg_proc.oid, proname, prolang, pronargs, prorettype, "
			"proretset, proargtypes, prosrc, probin, usename "
			"from pg_proc, pg_user "
			"where pg_proc.oid > '%d'::oid and proowner = usesysid",
			g_last_builtin_oid);

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getFuncs(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);

	*numFuncs = ntups;

	finfo = (FuncInfo *) malloc(ntups * sizeof(FuncInfo));

	i_oid = PQfnumber(res, "oid");
	i_proname = PQfnumber(res, "proname");
	i_prolang = PQfnumber(res, "prolang");
	i_pronargs = PQfnumber(res, "pronargs");
	i_proargtypes = PQfnumber(res, "proargtypes");
	i_prorettype = PQfnumber(res, "prorettype");
	i_proretset = PQfnumber(res, "proretset");
	i_prosrc = PQfnumber(res, "prosrc");
	i_probin = PQfnumber(res, "probin");
	i_usename = PQfnumber(res, "usename");

	for (i = 0; i < ntups; i++)
	{
		finfo[i].oid = strdup(PQgetvalue(res, i, i_oid));
		finfo[i].proname = strdup(PQgetvalue(res, i, i_proname));

		finfo[i].prosrc = checkForQuote(PQgetvalue(res, i, i_prosrc));
		finfo[i].probin = strdup(PQgetvalue(res, i, i_probin));

		finfo[i].prorettype = strdup(PQgetvalue(res, i, i_prorettype));
		finfo[i].retset = (strcmp(PQgetvalue(res, i, i_proretset), "t") == 0);
		finfo[i].nargs = atoi(PQgetvalue(res, i, i_pronargs));
		finfo[i].lang = atoi(PQgetvalue(res, i, i_prolang));

		finfo[i].usename = strdup(PQgetvalue(res, i, i_usename));

		parseArgTypes(finfo[i].argtypes, PQgetvalue(res, i, i_proargtypes));

		finfo[i].dumped = 0;
	}

	PQclear(res);
	res = PQexec(g_conn, "end");
	PQclear(res);

	return finfo;

}

/*
 * getTables
 *	  read all the user-defined tables (no indices, no catalogs)
 * in the system catalogs return them in the TableInfo* structure
 *
 * numTables is set to the number of tables read in
 *
 *
 */
TableInfo  *
getTables(int *numTables, FuncInfo *finfo, int numFuncs)
{
	PGresult   *res;
	int			ntups;
	int			i;
	char		query[MAXQUERYLEN];
	TableInfo  *tblinfo;

	int			i_oid;
	int			i_relname;
	int			i_relarch;
	int			i_relkind;
	int			i_relacl;
	int			i_usename;
	int			i_relchecks;
	int			i_reltriggers;

	/*
	 * find all the user-defined tables (no indices and no catalogs),
	 * ordering by oid is important so that we always process the parent
	 * tables before the child tables when traversing the tblinfo*
	 *
	 * we ignore tables that start with xinv
	 */

	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query,
	   "SELECT pg_class.oid, relname, relarch, relkind, relacl, usename, "
	   		"relchecks, reltriggers "
			"from pg_class, pg_user "
			"where relowner = usesysid and "
			"(relkind = 'r' or relkind = 'S') and relname !~ '^pg_' "
			"and relname !~ '^xin[xv][0-9]+' order by oid");

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getTables(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);

	*numTables = ntups;

	tblinfo = (TableInfo *) malloc(ntups * sizeof(TableInfo));

	i_oid = PQfnumber(res, "oid");
	i_relname = PQfnumber(res, "relname");
	i_relarch = PQfnumber(res, "relarch");
	i_relkind = PQfnumber(res, "relkind");
	i_relacl = PQfnumber(res, "relacl");
	i_usename = PQfnumber(res, "usename");
	i_relchecks = PQfnumber(res, "relchecks");
	i_reltriggers = PQfnumber(res, "reltriggers");

	for (i = 0; i < ntups; i++)
	{
		tblinfo[i].oid = strdup(PQgetvalue(res, i, i_oid));
		tblinfo[i].relname = strdup(PQgetvalue(res, i, i_relname));
		tblinfo[i].relarch = strdup(PQgetvalue(res, i, i_relarch));
		tblinfo[i].relacl = strdup(PQgetvalue(res, i, i_relacl));
		tblinfo[i].sequence = (strcmp(PQgetvalue(res, i, i_relkind), "S") == 0);
		tblinfo[i].usename = strdup(PQgetvalue(res, i, i_usename));
		tblinfo[i].ncheck = atoi(PQgetvalue(res, i, i_relchecks));
		tblinfo[i].ntrig = atoi(PQgetvalue(res, i, i_reltriggers));
		
		/* Get CHECK constraints */
		if (tblinfo[i].ncheck > 0)
		{
			PGresult   *res2;
			int			i_rcname, i_rcsrc;
			int			ntups2;
			int			i2;
			
			if (g_verbose)
				fprintf(stderr, "%s finding CHECK constraints for relation: %s %s\n",
						g_comment_start,
						tblinfo[i].relname,
						g_comment_end);
			
			sprintf(query, "SELECT rcname, rcsrc from pg_relcheck "
					"where rcrelid = '%s'::oid ",
					tblinfo[i].oid);
			res2 = PQexec(g_conn, query);
			if (!res2 ||
					PQresultStatus(res2) != PGRES_TUPLES_OK)
			{
				fprintf(stderr, "getTables(): SELECT (for CHECK) failed\n");
				exit_nicely(g_conn);
			}
			ntups2 = PQntuples(res2);
			if (ntups2 != tblinfo[i].ncheck)
			{
				fprintf(stderr, "getTables(): relation %s: %d CHECKs were expected, but got %d\n",
					tblinfo[i].relname, tblinfo[i].ncheck, ntups2);
				exit_nicely(g_conn);
			}
			i_rcname = PQfnumber(res2, "rcname");
			i_rcsrc = PQfnumber(res2, "rcsrc");
			tblinfo[i].check_expr = (char **) malloc (ntups2 * sizeof (char *));
			for (i2 = 0; i2 < ntups2; i2++)
			{
				char   *name = PQgetvalue(res2, i2, i_rcname);
				char   *expr = PQgetvalue(res2, i2, i_rcsrc);
				
				query[0] = 0;
				if ( name[0] != '$' )
					sprintf (query, "CONSTRAINT %s ", name);
				sprintf (query, "%sCHECK %s", query, expr);
				tblinfo[i].check_expr[i2] = strdup (query);
			}
			PQclear(res2);
		}
		else
			tblinfo[i].check_expr = NULL;
		
		/* Get Triggers */
		if (tblinfo[i].ntrig > 0)
		{
			PGresult   *res2;
			int			i_tgname, i_tgfoid, i_tgtype, i_tgnargs, i_tgargs;
			int			ntups2;
			int			i2;
			
			if (g_verbose)
				fprintf(stderr, "%s finding Triggers for relation: %s %s\n",
						g_comment_start,
						tblinfo[i].relname,
						g_comment_end);
			
			sprintf(query, "SELECT tgname, tgfoid, tgtype, tgnargs, tgargs "
					"from pg_trigger "
					"where tgrelid = '%s'::oid ",
					tblinfo[i].oid);
			res2 = PQexec(g_conn, query);
			if (!res2 ||
					PQresultStatus(res2) != PGRES_TUPLES_OK)
			{
				fprintf(stderr, "getTables(): SELECT (for TRIGGER) failed\n");
				exit_nicely(g_conn);
			}
			ntups2 = PQntuples(res2);
			if (ntups2 != tblinfo[i].ntrig)
			{
				fprintf(stderr, "getTables(): relation %s: %d Triggers were expected, but got %d\n",
					tblinfo[i].relname, tblinfo[i].ntrig, ntups2);
				exit_nicely(g_conn);
			}
			i_tgname = PQfnumber(res2, "tgname");
			i_tgfoid = PQfnumber(res2, "tgfoid");
			i_tgtype = PQfnumber(res2, "tgtype");
			i_tgnargs = PQfnumber(res2, "tgnargs");
			i_tgargs = PQfnumber(res2, "tgargs");
			tblinfo[i].triggers = (char **) malloc (ntups2 * sizeof (char *));
			for (i2 = 0, query[0] = 0; i2 < ntups2; i2++)
			{
				char   *tgfunc = PQgetvalue(res2, i2, i_tgfoid);
				int2	tgtype = atoi(PQgetvalue(res2, i2, i_tgtype));
				int		tgnargs = atoi(PQgetvalue(res2, i2, i_tgnargs));
				char   *tgargs = PQgetvalue(res2, i2, i_tgargs);
				char   *p;
				char	farg[MAXQUERYLEN];
				int		findx;
				
				for (findx = 0; findx < numFuncs; findx++)
				{
					if (strcmp(finfo[findx].oid, tgfunc) == 0 &&
						finfo[findx].lang == ClanguageId && 
						finfo[findx].nargs == 0 && 
						strcmp(finfo[findx].prorettype, "0") == 0)
						break;
				}
				if (findx == numFuncs)
				{
					fprintf(stderr, "getTables(): relation %s: cannot find function with oid %s for trigger %s\n",
						tblinfo[i].relname, tgfunc, PQgetvalue(res2, i2, i_tgname));
					exit_nicely(g_conn);
				}
				tgfunc = finfo[findx].proname;
				sprintf (query, "CREATE TRIGGER %s ", PQgetvalue(res2, i2, i_tgname));
				/* Trigger type */
				findx = 0;
				if (TRIGGER_FOR_BEFORE(tgtype))
					strcat (query, "BEFORE");
				else
					strcat (query, "AFTER");
				if (TRIGGER_FOR_INSERT(tgtype))
				{
					strcat (query, " INSERT");
					findx++;
				}
				if (TRIGGER_FOR_DELETE(tgtype))
				{
					if (findx > 0)
						strcat (query, " OR DELETE");
					else
						strcat (query, " DELETE");
					findx++;
				}
				if (TRIGGER_FOR_UPDATE(tgtype))
					if (findx > 0)
						strcat (query, " OR UPDATE");
					else
						strcat (query, " UPDATE");
				sprintf (query, "%s ON %s FOR EACH ROW EXECUTE PROCEDURE %s (",
					query, tblinfo[i].relname, tgfunc);
				for (findx = 0; findx < tgnargs; findx++)
				{
					char   *s, *d;
					
					for (p = tgargs; ; )
					{
						p = strchr (p, '\\');
						if (p == NULL)
						{
							fprintf(stderr, "getTables(): relation %s: bad argument string (%s) for trigger %s\n",
								tblinfo[i].relname, 
								PQgetvalue(res2, i2, i_tgargs), 
								PQgetvalue(res2, i2, i_tgname));
							exit_nicely(g_conn);
						}
						p++;
						if (*p == '\\')
						{
							p++;
							continue;
						}
						if ( p[0] == '0' && p[1] == '0' && p[2] == '0')
							break;
					}
					p--;
					for (s = tgargs, d = &(farg[0]); s < p; )
					{
						if (*s == '\'')
							*d++ = '\\';
						*d++ = *s++;
					}
					*d = 0;
					sprintf (query, "%s'%s'%s", query, farg, 
						(findx < tgnargs - 1) ? ", " : "");
					tgargs = p + 4;
				}
				strcat (query, ");\n");
				tblinfo[i].triggers[i2] = strdup (query);
			}
			PQclear(res2);
		}
		else
			tblinfo[i].triggers = NULL;
	}

	PQclear(res);
	res = PQexec(g_conn, "end");
	PQclear(res);

	return tblinfo;

}

/*
 * getInherits
 *	  read all the inheritance information
 * from the system catalogs return them in the InhInfo* structure
 *
 * numInherits is set to the number of tables read in
 *
 *
 */
InhInfo    *
getInherits(int *numInherits)
{
	PGresult   *res;
	int			ntups;
	int			i;
	char		query[MAXQUERYLEN];
	InhInfo    *inhinfo;

	int			i_inhrel;
	int			i_inhparent;

	/* find all the inheritance information */
	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query, "SELECT inhrel, inhparent from pg_inherits");

	res = PQexec(g_conn, query);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getInherits(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);

	*numInherits = ntups;

	inhinfo = (InhInfo *) malloc(ntups * sizeof(InhInfo));

	i_inhrel = PQfnumber(res, "inhrel");
	i_inhparent = PQfnumber(res, "inhparent");

	for (i = 0; i < ntups; i++)
	{
		inhinfo[i].inhrel = strdup(PQgetvalue(res, i, i_inhrel));
		inhinfo[i].inhparent = strdup(PQgetvalue(res, i, i_inhparent));
	}

	PQclear(res);
	res = PQexec(g_conn, "end");
	PQclear(res);
	return inhinfo;
}

/*
 * getTableAttrs -
 *	  for each table in tblinfo, read its attributes types and names
 *
 * this is implemented in a very inefficient way right now, looping
 * through the tblinfo and doing a join per table to find the attrs and their
 * types
 *
 *	modifies tblinfo
 */
void
getTableAttrs(TableInfo *tblinfo, int numTables)
{
	int			i,
				j;
	char		q[MAXQUERYLEN];
	int			i_attname;
	int			i_typname;
	int			i_attlen;
	int			i_attnotnull;
	int			i_atthasdef;
	PGresult   *res;
	int			ntups;

	for (i = 0; i < numTables; i++)
	{

		/* skip archive tables */
		if (isArchiveName(tblinfo[i].relname))
			continue;

		if (tblinfo[i].sequence)
			continue;

		/* find all the user attributes and their types */
		/* we must read the attribute names in attribute number order! */

		/*
		 * because we will use the attnum to index into the attnames array
		 * later
		 */
		if (g_verbose)
			fprintf(stderr, "%s finding the attrs and types for table: %s %s\n",
					g_comment_start,
					tblinfo[i].relname,
					g_comment_end);

		sprintf(q, "SELECT a.attnum, a.attname, t.typname, a.attlen, "
				"a.attnotnull, a.atthasdef "
				"from pg_attribute a, pg_type t "
				"where a.attrelid = '%s'::oid and a.atttypid = t.oid "
				"and a.attnum > 0 order by attnum",
				tblinfo[i].oid);
		res = PQexec(g_conn, q);
		if (!res ||
			PQresultStatus(res) != PGRES_TUPLES_OK)
		{
			fprintf(stderr, "getTableAttrs(): SELECT failed\n");
			exit_nicely(g_conn);
		}

		ntups = PQntuples(res);

		i_attname = PQfnumber(res, "attname");
		i_typname = PQfnumber(res, "typname");
		i_attlen = PQfnumber(res, "attlen");
		i_attnotnull = PQfnumber(res, "attnotnull");
		i_atthasdef = PQfnumber(res, "atthasdef");

		tblinfo[i].numatts = ntups;
		tblinfo[i].attnames = (char **) malloc(ntups * sizeof(char *));
		tblinfo[i].typnames = (char **) malloc(ntups * sizeof(char *));
		tblinfo[i].attlen = (int *) malloc(ntups * sizeof(int));
		tblinfo[i].inhAttrs = (int *) malloc(ntups * sizeof(int));
		tblinfo[i].notnull = (bool *) malloc(ntups * sizeof(bool));
		tblinfo[i].adef_expr = (char **) malloc(ntups * sizeof(char *));
		tblinfo[i].parentRels = NULL;
		tblinfo[i].numParents = 0;
		for (j = 0; j < ntups; j++)
		{
			tblinfo[i].attnames[j] = strdup(PQgetvalue(res, j, i_attname));
			tblinfo[i].typnames[j] = strdup(PQgetvalue(res, j, i_typname));
			tblinfo[i].attlen[j] = atoi(PQgetvalue(res, j, i_attlen));
			if (tblinfo[i].attlen[j] > 0)
				tblinfo[i].attlen[j] = tblinfo[i].attlen[j] - 4;
			tblinfo[i].inhAttrs[j] = 0; /* this flag is set in
										 * flagInhAttrs() */
			tblinfo[i].notnull[j] = (PQgetvalue(res, j, i_attnotnull)[0] == 't') ? true : false;
			if (PQgetvalue(res, j, i_atthasdef)[0] == 't')
			{
				PGresult   *res2;
				
				if (g_verbose)
					fprintf(stderr, "%s finding DEFAULT expression for attr: %s %s\n",
							g_comment_start,
							tblinfo[i].attnames[j],
							g_comment_end);
		
				sprintf(q, "SELECT adsrc from pg_attrdef "
						"where adrelid = '%s'::oid and adnum = %d ",
						tblinfo[i].oid, j + 1);
				res2 = PQexec(g_conn, q);
				if (!res2 ||
						PQresultStatus(res2) != PGRES_TUPLES_OK)
				{
					fprintf(stderr, "getTableAttrs(): SELECT (for DEFAULT) failed\n");
					exit_nicely(g_conn);
				}
				tblinfo[i].adef_expr[j] = strdup(PQgetvalue(res2, 0, PQfnumber(res2, "adsrc")));
				PQclear(res2);
			}
			else
				tblinfo[i].adef_expr[j] = NULL;
		}
		PQclear(res);
	}
}


/*
 * getIndices
 *	  read all the user-defined indices information
 * from the system catalogs return them in the InhInfo* structure
 *
 * numIndices is set to the number of indices read in
 *
 *
 */
IndInfo    *
getIndices(int *numIndices)
{
	int			i;
	char		query[MAXQUERYLEN];
	PGresult   *res;
	int			ntups;
	IndInfo    *indinfo;

	int			i_indexrelname;
	int			i_indrelname;
	int			i_indamname;
	int			i_indproc;
	int			i_indkey;
	int			i_indclass;
	int			i_indisunique;

	/*
	 * find all the user-defined indices. We do not handle partial
	 * indices.
	 *
	 * skip 'Xinx*' - indices on inversion objects
	 *
	 * this is a 4-way join !!
	 */

	res = PQexec(g_conn, "begin");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "BEGIN command failed\n");
		exit_nicely(g_conn);
	}
	PQclear(res);

	sprintf(query,
		  "SELECT t1.relname as indexrelname, t2.relname as indrelname, "
			"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 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);
	if (!res ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "getIndices(): SELECT failed\n");
		exit_nicely(g_conn);
	}

	ntups = PQntuples(res);

	*numIndices = ntups;

	indinfo = (IndInfo *) malloc(ntups * sizeof(IndInfo));

	i_indexrelname = PQfnumber(res, "indexrelname");
	i_indrelname = PQfnumber(res, "indrelname");
	i_indamname = PQfnumber(res, "indamname");
	i_indproc = PQfnumber(res, "indproc");
	i_indkey = PQfnumber(res, "indkey");
	i_indclass = PQfnumber(res, "indclass");
	i_indisunique = PQfnumber(res, "indisunique");

	for (i = 0; i < ntups; i++)
	{
		indinfo[i].indexrelname = strdup(PQgetvalue(res, i, i_indexrelname));
		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));
		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);
	res = PQexec(g_conn, "end");
	if (res)
		PQclear(res);
	return indinfo;
}

/*
 * dumpTypes
 *	  writes out to fout the queries to recreate all the user-defined types
 *
 */
void
dumpTypes(FILE *fout, FuncInfo *finfo, int numFuncs,
		  TypeInfo *tinfo, int numTypes)
{
	int			i;
	char		q[MAXQUERYLEN];
	int			funcInd;

	for (i = 0; i < numTypes; i++)
	{

		/* skip all the builtin types */
		if (atoi(tinfo[i].oid) < g_last_builtin_oid)
			continue;

		/* skip relation types */
		if (atoi(tinfo[i].typrelid) != 0)
			continue;

		/* skip all array types that start w/ underscore */
		if ((tinfo[i].typname[0] == '_') &&
			(strcmp(tinfo[i].typinput, "array_in") == 0))
			continue;

		/*
		 * before we create a type, we need to create the input and output
		 * functions for it, if they haven't been created already
		 */
		funcInd = findFuncByName(finfo, numFuncs, tinfo[i].typinput);
		if (funcInd != -1)
			dumpOneFunc(fout, finfo, funcInd, tinfo, numTypes);

		funcInd = findFuncByName(finfo, numFuncs, tinfo[i].typoutput);
		if (funcInd != -1)
			dumpOneFunc(fout, finfo, funcInd, tinfo, numTypes);

		fprintf(fout, "\\connect - %s\n", tinfo[i].usename);

		sprintf(q,
				"CREATE TYPE %s "
				"( internallength = %s, externallength = %s, input = %s, "
				"output = %s, send = %s, receive = %s, default = '%s'",
				tinfo[i].typname,
				tinfo[i].typlen,
				tinfo[i].typprtlen,
				tinfo[i].typinput,
				tinfo[i].typoutput,
				tinfo[i].typsend,
				tinfo[i].typreceive,
				tinfo[i].typdefault);

		if (tinfo[i].isArray)
		{
			char	   *elemType;

			elemType = findTypeByOid(tinfo, numTypes, tinfo[i].typelem);

			sprintf(q, "%s, element = %s, delimiter = '%s'",
					q, elemType, tinfo[i].typdelim);
		}
		if (tinfo[i].passedbyvalue)
			strcat(q, ",passedbyvalue);\n");
		else
			strcat(q, ");\n");

		fputs(q, fout);
	}
}

/*
 * dumpFuncs
 *	  writes out to fout the queries to recreate all the user-defined functions
 *
 */
void
dumpFuncs(FILE *fout, FuncInfo *finfo, int numFuncs,
		  TypeInfo *tinfo, int numTypes)
{
	int			i;

	for (i = 0; i < numFuncs; i++)
	{
		dumpOneFunc(fout, finfo, i, tinfo, numTypes);
	}
}

/*
 * dumpOneFunc:
 *	  dump out only one function,  the index of which is given in the third
 *	argument
 *
 */

static void
dumpOneFunc(FILE *fout, FuncInfo *finfo, int i,
			TypeInfo *tinfo, int numTypes)
{
	char		q[MAXQUERYLEN];
	int			j;

	if (finfo[i].dumped)
		return;
	else
		finfo[i].dumped = 1;

	fprintf(fout, "\\connect - %s\n", finfo[i].usename);

	sprintf(q, "CREATE FUNCTION %s (", finfo[i].proname);
	for (j = 0; j < finfo[i].nargs; j++)
	{
		char	   *typname;

		typname = findTypeByOid(tinfo, numTypes, finfo[i].argtypes[j]);
		sprintf(q, "%s%s%s",
				q,
				(j > 0) ? "," : "",
				typname);
	}
	sprintf(q, "%s ) RETURNS %s%s AS '%s' LANGUAGE '%s';\n",
			q,
			(finfo[i].retset) ? " SETOF " : "",
			findTypeByOid(tinfo, numTypes, finfo[i].prorettype),
			(finfo[i].lang == INTERNALlanguageId) ? finfo[i].prosrc :
				(finfo[i].lang == ClanguageId) ? finfo[i].probin :
					(finfo[i].lang == SQLlanguageId) ? finfo[i].prosrc : "unknown",
			(finfo[i].lang == INTERNALlanguageId) ? "INTERNAL" :
				(finfo[i].lang == ClanguageId) ? "C" :
					(finfo[i].lang == SQLlanguageId) ? "SQL" : "unknown");

	fputs(q, fout);

}

/*
 * dumpOprs
 *	  writes out to fout the queries to recreate all the user-defined operators
 *
 */
void
dumpOprs(FILE *fout, OprInfo *oprinfo, int numOperators,
		 TypeInfo *tinfo, int numTypes)
{
	int			i;
	char		q[MAXQUERYLEN];
	char		leftarg[MAXQUERYLEN];
	char		rightarg[MAXQUERYLEN];
	char		commutator[MAXQUERYLEN];
	char		negator[MAXQUERYLEN];
	char		restrict[MAXQUERYLEN];
	char		join[MAXQUERYLEN];
	char		sortop[MAXQUERYLEN];

	for (i = 0; i < numOperators; i++)
	{

		/* skip all the builtin oids */
		if (atoi(oprinfo[i].oid) < g_last_builtin_oid)
			continue;

		/*
		 * some operator are invalid because they were the result of user
		 * defining operators before commutators exist
		 */
		if (strcmp(oprinfo[i].oprcode, "-") == 0)
			continue;

		leftarg[0] = '\0';
		rightarg[0] = '\0';

		/*
		 * right unary means there's a left arg and left unary means
		 * there's a right arg
		 */
		if (strcmp(oprinfo[i].oprkind, "r") == 0 ||
			strcmp(oprinfo[i].oprkind, "b") == 0)
		{
			sprintf(leftarg, ", LEFTARG = %s ",
					findTypeByOid(tinfo, numTypes, oprinfo[i].oprleft));
		}
		if (strcmp(oprinfo[i].oprkind, "l") == 0 ||
			strcmp(oprinfo[i].oprkind, "b") == 0)
		{
			sprintf(rightarg, ", RIGHTARG = %s ",
					findTypeByOid(tinfo, numTypes, oprinfo[i].oprright));
		}
		if (strcmp(oprinfo[i].oprcom, "0") == 0)
			commutator[0] = '\0';
		else
			sprintf(commutator, ", COMMUTATOR = %s ",
				 findOprByOid(oprinfo, numOperators, oprinfo[i].oprcom));

		if (strcmp(oprinfo[i].oprnegate, "0") == 0)
			negator[0] = '\0';
		else
			sprintf(negator, ", NEGATOR = %s ",
			  findOprByOid(oprinfo, numOperators, oprinfo[i].oprnegate));

		if (strcmp(oprinfo[i].oprrest, "-") == 0)
			restrict[0] = '\0';
		else
			sprintf(restrict, ", RESTRICT = %s ", oprinfo[i].oprrest);

		if (strcmp(oprinfo[i].oprjoin, "-") == 0)
			join[0] = '\0';
		else
			sprintf(join, ", JOIN = %s ", oprinfo[i].oprjoin);

		if (strcmp(oprinfo[i].oprlsortop, "0") == 0)
			sortop[0] = '\0';
		else
		{
			sprintf(sortop, ", SORT = %s ",
					findOprByOid(oprinfo, numOperators,
								 oprinfo[i].oprlsortop));
			if (strcmp(oprinfo[i].oprrsortop, "0") != 0)
				sprintf(sortop, "%s , %s", sortop,
						findOprByOid(oprinfo, numOperators,
									 oprinfo[i].oprlsortop));
		}

		fprintf(fout, "\\connect - %s\n", oprinfo[i].usename);

		sprintf(q,
				"CREATE OPERATOR %s "
				"(PROCEDURE = %s %s %s %s %s %s %s %s %s);\n ",
				oprinfo[i].oprname,
				oprinfo[i].oprcode,
				leftarg,
				rightarg,
				commutator,
				negator,
				restrict,
				(strcmp(oprinfo[i].oprcanhash, "t")) ? ", HASHES" : "",
				join,
				sortop);

		fputs(q, fout);
	}
}

/*
 * dumpAggs
 *	  writes out to fout the queries to create all the user-defined aggregates
 *
 */
void
dumpAggs(FILE *fout, AggInfo *agginfo, int numAggs,
		 TypeInfo *tinfo, int numTypes)
{
	int			i;
	char		q[MAXQUERYLEN];
	char		sfunc1[MAXQUERYLEN];
	char		sfunc2[MAXQUERYLEN];
	char		basetype[MAXQUERYLEN];
	char		finalfunc[MAXQUERYLEN];
	char		comma1[2],
				comma2[2];

	for (i = 0; i < numAggs; i++)
	{
		/* skip all the builtin oids */
		if (atoi(agginfo[i].oid) < g_last_builtin_oid)
			continue;
		
		sprintf(basetype,
				"BASETYPE = %s, ",
			  findTypeByOid(tinfo, numTypes, agginfo[i].aggbasetype));

		if (strcmp(agginfo[i].aggtransfn1, "-") == 0)
			sfunc1[0] = '\0';
		else
		{
			sprintf(sfunc1,
					"SFUNC1 = %s, STYPE1 = %s",
					agginfo[i].aggtransfn1,
					findTypeByOid(tinfo, numTypes, agginfo[i].aggtranstype1));
			if (agginfo[i].agginitval1)
				sprintf(sfunc1, "%s, INITCOND1 = '%s'",
						sfunc1, agginfo[i].agginitval1);

		}

		if (strcmp(agginfo[i].aggtransfn2, "-") == 0)
			sfunc2[0] = '\0';
		else
		{
			sprintf(sfunc2,
					"SFUNC2 = %s, STYPE2 = %s",
					agginfo[i].aggtransfn2,
			   findTypeByOid(tinfo, numTypes, agginfo[i].aggtranstype2));
			if (agginfo[i].agginitval2)
				sprintf(sfunc2, "%s, INITCOND2 = '%s'",
						sfunc2, agginfo[i].agginitval2);
		}

		if (strcmp(agginfo[i].aggfinalfn, "-") == 0)
			finalfunc[0] = '\0';
		else
		{
			sprintf(finalfunc, "FINALFUNC = %s", agginfo[i].aggfinalfn);
		}
		if (sfunc1[0] != '\0' && sfunc2[0] != '\0')
		{
			comma1[0] = ',';
			comma1[1] = '\0';
		}
		else
			comma1[0] = '\0';

		if (finalfunc[0] != '\0' && (sfunc1[0] != '\0' || sfunc2[0] != '\0'))
		{
			comma2[0] = ',';
			comma2[1] = '\0';
		}
		else
			comma2[0] = '\0';

		fprintf(fout, "\\connect - %s\n", agginfo[i].usename);

		sprintf(q, "CREATE AGGREGATE %s ( %s %s%s %s%s %s );\n",
				agginfo[i].aggname,
				basetype,
				sfunc1,
				comma1,
				sfunc2,
				comma2,
				finalfunc);

		fputs(q, fout);
	}
}

/*
 * dumpTables:
 *	  write out to fout all the user-define tables
 */

void
dumpTables(FILE *fout, TableInfo *tblinfo, int numTables,
		   InhInfo *inhinfo, int numInherits,
		   TypeInfo *tinfo, int numTypes, const char *tablename,
		   const bool acls)
{
	int			i,
				j,
				k;
	char		q[MAXQUERYLEN];
	char	  **parentRels;		/* list of names of parent relations */
	int			numParents;
	int			actual_atts;	/* number of attrs in this CREATE statment */
	const char *archiveMode;
	
	/* First - dump SEQUENCEs */
	for (i = 0; i < numTables; i++)
	{
		if (!(tblinfo[i].sequence))
			continue;
		if (!tablename || (!strcmp(tblinfo[i].relname, tablename)))
		{
			fprintf(fout, "\\connect - %s\n", tblinfo[i].usename);
			dumpSequence(fout, tblinfo[i]);
		}
	}
	
	for (i = 0; i < numTables; i++)
	{
		if (tblinfo[i].sequence)	/* already dumped */
			continue;

		if (!tablename || (!strcmp(tblinfo[i].relname, tablename)))
		{

			/* Skip VIEW relations */
			if (isViewRule(tblinfo[i].relname))
				continue;

			/* skip archive names */
			if (isArchiveName(tblinfo[i].relname))
				continue;

			parentRels = tblinfo[i].parentRels;
			numParents = tblinfo[i].numParents;

			fprintf(fout, "\\connect - %s\n", tblinfo[i].usename);

			sprintf(q, "CREATE TABLE %s (", tblinfo[i].relname);
			actual_atts = 0;
			for (j = 0; j < tblinfo[i].numatts; j++)
			{
				if (tblinfo[i].inhAttrs[j] == 0)
				{

					/* Show lengths on bpchar and varchar */
					if (!strcmp(tblinfo[i].typnames[j], "bpchar"))
					{
						sprintf(q, "%s%s%s char",
								q,
								(actual_atts > 0) ? ", " : "",
								tblinfo[i].attnames[j]);

						/* stored length can be -1 (variable) */
						if (tblinfo[i].attlen[j] > 0)
							sprintf(q, "%s(%d)",
									q,
									tblinfo[i].attlen[j]);
						actual_atts++;
					}
					else if (!strcmp(tblinfo[i].typnames[j], "varchar"))
					{
						sprintf(q, "%s%s%s %s",
								q,
								(actual_atts > 0) ? ", " : "",
								tblinfo[i].attnames[j],
								tblinfo[i].typnames[j]);

						/* stored length can be -1 (variable) */
						if (tblinfo[i].attlen[j] > 0)
							sprintf(q, "%s(%d)",
									q,
									tblinfo[i].attlen[j]);
						actual_atts++;
					}
					else
					{
						sprintf(q, "%s%s%s %s",
								q,
								(actual_atts > 0) ? ", " : "",
								tblinfo[i].attnames[j],
								tblinfo[i].typnames[j]);
						actual_atts++;
					}
					if (tblinfo[i].adef_expr[j] != NULL)
						sprintf(q, "%s DEFAULT %s", q, tblinfo[i].adef_expr[j]);
					if (tblinfo[i].notnull[j])
						sprintf(q, "%s NOT NULL", q);
				}
			}

			strcat(q, ")");

			if (numParents > 0)
			{
				sprintf(q, "%s inherits ( ", q);
				for (k = 0; k < numParents; k++)
				{
					sprintf(q, "%s%s%s",
							q,
							(k > 0) ? ", " : "",
							parentRels[k]);
				}
				strcat(q, ")");
			}

			if (tblinfo[i].ncheck > 0)
			{
				for (k = 0; k < tblinfo[i].ncheck; k++)
				{
					sprintf(q, "%s%s %s",
							q,
							(k > 0) ? ", " : "",
							tblinfo[i].check_expr[k]);
				}
			}

			switch (tblinfo[i].relarch[0])
			{
				case 'n':
					archiveMode = "none";
					break;
				case 'h':
					archiveMode = "heavy";
					break;
				case 'l':
					archiveMode = "light";
					break;
				default:
					fprintf(stderr, "unknown archive mode\n");
					archiveMode = "none";
					break;
			}

			sprintf(q, "%s archive = %s;\n",
					q,
					archiveMode);
			fputs(q, fout);

			if (acls)
				fprintf(fout,
				 "UPDATE pg_class SET relacl='%s' where relname='%s';\n",
						tblinfo[i].relacl, tblinfo[i].relname);
		}
	}
}

/*
 * dumpIndices:
 *	  write out to fout all the user-define indices
 */
void
dumpIndices(FILE *fout, IndInfo *indinfo, int numIndices,
			TableInfo *tblinfo, int numTables, const char *tablename)
{
	int			i,
				k;
	int			tableInd;
	char		attlist[1000];
	char	   *classname[INDEX_MAX_KEYS];
	char	   *funcname;		/* the name of the function to comput the
								 * index key from */
	int			indkey,
				indclass;
	int			nclass;

	char		q[MAXQUERYLEN];
	PGresult   *res;

	for (i = 0; i < numIndices; i++)
	{
		tableInd = findTableByName(tblinfo, numTables,
								   indinfo[i].indrelname);

		if (strcmp(indinfo[i].indproc, "0") == 0)
		{
			funcname = NULL;
		}
		else
		{

			/*
			 * the funcname is an oid which we use to find the name of the
			 * pg_proc.  We need to do this because getFuncs() only reads
			 * in the user-defined funcs not all the funcs.  We might not
			 * find what we want by looking in FuncInfo*
			 */
			sprintf(q,
					"SELECT proname from pg_proc "
					"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)))
		{

			sprintf(q, "CREATE %s INDEX %s on %s using %s (",
			  (strcmp(indinfo[i].indisunique, "t") == 0) ? "UNIQUE" : "",
					indinfo[i].indexrelname,
					indinfo[i].indrelname,
					indinfo[i].indamname);
			if (funcname)
			{
				sprintf(q, "%s %s (%s) %s );\n",
						q, funcname, attlist, classname[0]);
				free(funcname);
				free(classname[0]);
			}
			else
				sprintf(q, "%s %s );\n",
						q, attlist);

			fputs(q, fout);
		}
	}

}

/*
 * dumpTuples --
 *	  prints out the tuples in ASCII representation. The output is a valid
 *	  input to COPY FROM stdin.
 *
 *	  We only need to do this for POSTGRES 4.2 databases since the
 *	  COPY TO statment doesn't escape newlines properly. It's been fixed
 *	  in Postgres95.
 *
 * the attrmap passed in tells how to map the attributes copied in to the
 * attributes copied out
 */
#ifdef NOT_USED
void
dumpTuples(PGresult *res, FILE *fout, int *attrmap)
{
	int			j,
				k;
	int			m,
				n;
	char	  **outVals = NULL; /* values to copy out */

	n = PQntuples(res);
	m = PQnfields(res);

	if (m > 0)
	{

		/*
		 * Print out the tuples but only print tuples with at least 1
		 * field.
		 */
		outVals = (char **) malloc(m * sizeof(char *));

		for (j = 0; j < n; j++)
		{
			for (k = 0; k < m; k++)
			{
				outVals[attrmap[k]] = PQgetvalue(res, j, k);
			}
			for (k = 0; k < m; k++)
			{
				char	   *pval = outVals[k];

				if (k != 0)
					fputc('\t', fout);	/* delimiter for attribute */

				if (pval)
				{
					while (*pval != '\0')
					{
						/* escape tabs, newlines and backslashes */
						if (*pval == '\t' || *pval == '\n' || *pval == '\\')
							fputc('\\', fout);
						fputc(*pval, fout);
						pval++;
					}
				}
			}
			fputc('\n', fout);	/* delimiter for a tuple */
		}
		free(outVals);
	}
}

#endif

/*
 * setMaxOid -
 * find the maximum oid and generate a COPY statement to set it
*/

static void
setMaxOid(FILE *fout)
{
	PGresult   *res;
	Oid			max_oid;

	res = PQexec(g_conn, "CREATE TABLE pgdump_oid (dummy int4)");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "Can not create pgdump_oid table\n");
		exit_nicely(g_conn);
	}
	PQclear(res);
	res = PQexec(g_conn, "INSERT INTO pgdump_oid VALUES (0)");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "Can not insert into pgdump_oid table\n");
		exit_nicely(g_conn);
	}
	max_oid = atol(PQoidStatus(res));
	if (max_oid == 0)
	{
		fprintf(stderr, "Invalid max id in setMaxOid\n");
		exit_nicely(g_conn);
	}
	PQclear(res);
	res = PQexec(g_conn, "DROP TABLE pgdump_oid;");
	if (!res ||
		PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		fprintf(stderr, "Can not drop pgdump_oid table\n");
		exit_nicely(g_conn);
	}
	PQclear(res);
	if (g_verbose)
		fprintf(stderr, "%s maximum system oid is %d %s\n",
				g_comment_start, max_oid, g_comment_end);
	fprintf(fout, "CREATE TABLE pgdump_oid (dummy int4);\n");
	fprintf(fout, "COPY pgdump_oid WITH OIDS FROM stdin;\n");
	fprintf(fout, "%-d\t0\n", max_oid);
	fprintf(fout, "\\.\n");
	fprintf(fout, "DROP TABLE pgdump_oid;\n");
}

/*
 * findLastBuiltInOid -
 * find the last built in oid
 * we do this by looking up the oid of 'template1' in pg_database,
 * this is probably not foolproof but comes close
*/

static int
findLastBuiltinOid(void)
{
	PGresult   *res;
	int			ntups;
	int			last_oid;

	res = PQexec(g_conn,
			  "SELECT oid from pg_database where datname = 'template1'");
	if (res == NULL ||
		PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "pg_dump error in finding the template1 database\n");
		exit_nicely(g_conn);
	}
	ntups = PQntuples(res);
	if (ntups != 1)
	{
		fprintf(stderr, "pg_dump: couldn't find the template1 database.  "
				"You are really hosed.\nGiving up.\n");
		exit_nicely(g_conn);
	}
	last_oid = atoi(PQgetvalue(res, 0, PQfnumber(res, "oid")));
	PQclear(res);
	return last_oid;
}


/*
 * checkForQuote:
 *	  checks a string for quote characters and quotes them
 */
static char *
checkForQuote(const char *s)
{
	char	   *r;
	char		c;
	char	   *result;

	int			j = 0;

	r = malloc(strlen(s) * 3 + 1);		/* definitely long enough */

	while ((c = *s) != '\0')
	{

		if (c == '\'')
		{
			r[j++] = '\'';		/* quote the single quotes */
		}
		r[j++] = c;
		s++;
	}
	r[j] = '\0';

	result = strdup(r);
	free(r);

	return result;

}


static void
dumpSequence(FILE *fout, TableInfo tbinfo)
{
	PGresult   *res;
	int4		last,
				incby,
				maxv,
				minv,
				cache;
	char		cycled,
				called,
			   *t;
	char		query[MAXQUERYLEN];

	sprintf(query,
			"SELECT sequence_name, last_value, increment_by, max_value, "
			"min_value, cache_value, is_cycled, is_called from %s",
			tbinfo.relname);

	res = PQexec(g_conn, query);
	if (!res || PQresultStatus(res) != PGRES_TUPLES_OK)
	{
		fprintf(stderr, "dumpSequence(%s): SELECT failed\n", tbinfo.relname);
		exit_nicely(g_conn);
	}

	if (PQntuples(res) != 1)
	{
		fprintf(stderr, "dumpSequence(%s): %d (!= 1) tuples returned by SELECT\n",
				tbinfo.relname, PQntuples(res));
		exit_nicely(g_conn);
	}

	if (strcmp(PQgetvalue(res, 0, 0), tbinfo.relname) != 0)
	{
		fprintf(stderr, "dumpSequence(%s): different sequence name "
				"returned by SELECT: %s\n",
				tbinfo.relname, PQgetvalue(res, 0, 0));
		exit_nicely(g_conn);
	}


	last = atoi(PQgetvalue(res, 0, 1));
	incby = atoi(PQgetvalue(res, 0, 2));
	maxv = atoi(PQgetvalue(res, 0, 3));
	minv = atoi(PQgetvalue(res, 0, 4));
	cache = atoi(PQgetvalue(res, 0, 5));
	t = PQgetvalue(res, 0, 6);
	cycled = *t;
	t = PQgetvalue(res, 0, 7);
	called = *t;

	PQclear(res);

	sprintf(query,
			"CREATE SEQUENCE %s start %d increment %d maxvalue %d "
			"minvalue %d  cache %d %s;\n",
			tbinfo.relname, last, incby, maxv, minv, cache,
			(cycled == 't') ? "cycle" : "");

	fputs(query, fout);

	if (called == 'f')
		return;					/* nothing to do more */

	sprintf(query, "SELECT nextval ('%s');\n", tbinfo.relname);
	fputs(query, fout);

}


static void	
dumpTriggers(FILE *fout, const char *tablename, 
						TableInfo *tblinfo, int numTables)
{
	int	i, j;
	
	if (g_verbose)
		fprintf(stderr, "%s dumping out triggers %s\n",
				g_comment_start, g_comment_end);
	
	for (i = 0; i < numTables; i++)
	{
		if (tablename && strcmp(tblinfo[i].relname, tablename))
			continue;
		for (j = 0; j < tblinfo[i].ntrig; j++)
		{
			fprintf(fout, "\\connect - %s\n", tblinfo[i].usename);
			fputs(tblinfo[i].triggers[j], fout);
		}
	}
}