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#include "postgres.hh"
#include "config.h"
#include <iostream>
#ifndef HAVE_BOOST_REGEX
#include <regex>
#else
#include <boost/regex.hpp>
using boost::regex;
using boost::smatch;
using boost::regex_match;
#endif
using namespace std;
static regex e_timeout("ERROR: canceling statement due to statement timeout(\n|.)*");
static regex e_syntax("ERROR: syntax error at or near(\n|.)*");
bool pg_type::consistent(sqltype *rvalue)
{
pg_type *t = dynamic_cast<pg_type*>(rvalue);
if (!t) {
cerr << "unknown type: " << rvalue->name << endl;
return false;
}
switch(typtype_) {
case 'b': /* base type */
case 'c': /* composite type */
case 'd': /* domain */
case 'r': /* range */
case 'm': /* multirange */
case 'e': /* enum */
return this == t;
case 'p': /* pseudo type: accept any concrete matching type */
if (name == "anyarray" || name == "anycompatiblearray") {
return t->typelem_ != InvalidOid;
} else if (name == "anynonarray" || name == "anycompatiblenonarray") {
return t->typelem_ == InvalidOid;
} else if(name == "anyenum") {
return t->typtype_ == 'e';
} else if (name == "\"any\"" || name == "anycompatible") { /* as quoted by quote_ident() */
return t->typtype_ != 'p'; /* any non-pseudo type */
} else if (name == "anyelement") {
return t->typelem_ == InvalidOid;
} else if (name == "anyrange" || name == "anycompatiblerange") {
return t->typtype_ == 'r';
} else if (name == "anymultirange" || name == "anycompatiblemultirange") {
return t->typtype_ == 'm';
} else if (name == "record") {
return t->typtype_ == 'c';
} else if (name == "cstring") {
return this == t;
} else {
return false;
}
default:
throw std::logic_error("unknown typtype");
}
}
dut_pqxx::dut_pqxx(std::string conninfo)
: c(conninfo)
{
c.set_variable("statement_timeout", "'1s'");
c.set_variable("client_min_messages", "'ERROR'");
c.set_variable("application_name", "'" PACKAGE "::dut'");
}
void dut_pqxx::test(const std::string &stmt)
{
try {
#ifndef HAVE_LIBPQXX7
if(!c.is_open())
c.activate();
#endif
pqxx::work w(c);
w.exec(stmt.c_str());
w.abort();
} catch (const pqxx::failure &e) {
if ((dynamic_cast<const pqxx::broken_connection *>(&e))) {
/* re-throw to outer loop to recover session. */
throw dut::broken(e.what());
}
if (regex_match(e.what(), e_timeout))
throw dut::timeout(e.what());
else if (regex_match(e.what(), e_syntax))
throw dut::syntax(e.what());
else
throw dut::failure(e.what());
}
}
schema_pqxx::schema_pqxx(std::string &conninfo, bool no_catalog) : c(conninfo)
{
c.set_variable("application_name", "'" PACKAGE "::schema'");
pqxx::work w(c);
pqxx::result r = w.exec("select version()");
version = r[0][0].as<string>();
r = w.exec("SHOW server_version_num");
version_num = r[0][0].as<int>();
// address the schema change in postgresql 11 that replaced proisagg and proiswindow with prokind
string procedure_is_aggregate = version_num < 110000 ? "proisagg" : "prokind = 'a'";
string procedure_is_window = version_num < 110000 ? "proiswindow" : "prokind = 'w'";
cerr << "Loading types...";
r = w.exec("select case typnamespace when 'pg_catalog'::regnamespace then quote_ident(typname) "
"else format('%I.%I', typnamespace::regnamespace, typname) end, "
"oid, typdelim, typrelid, typelem, typarray, typtype "
"from pg_type ");
for (auto row = r.begin(); row != r.end(); ++row) {
string name(row[0].as<string>());
OID oid(row[1].as<OID>());
string typdelim(row[2].as<string>());
OID typrelid(row[3].as<OID>());
OID typelem(row[4].as<OID>());
OID typarray(row[5].as<OID>());
string typtype(row[6].as<string>());
// if (schema == "pg_catalog")
// continue;
// if (schema == "information_schema")
// continue;
pg_type *t = new pg_type(name,oid,typdelim[0],typrelid, typelem, typarray, typtype[0]);
oid2type[oid] = t;
name2type[name] = t;
types.push_back(t);
}
booltype = name2type["bool"];
inttype = name2type["int4"];
internaltype = name2type["internal"];
arraytype = name2type["anyarray"];
cerr << "done." << endl;
cerr << "Loading tables...";
r = w.exec("select table_name, "
"table_schema, "
"is_insertable_into, "
"table_type "
"from information_schema.tables");
for (auto row = r.begin(); row != r.end(); ++row) {
string schema(row[1].as<string>());
string insertable(row[2].as<string>());
string table_type(row[3].as<string>());
if (no_catalog && ((schema == "pg_catalog") || (schema == "information_schema")))
continue;
tables.push_back(table(row[0].as<string>(),
schema,
((insertable == "YES") ? true : false),
((table_type == "BASE TABLE") ? true : false)));
}
cerr << "done." << endl;
cerr << "Loading columns and constraints...";
for (auto t = tables.begin(); t != tables.end(); ++t) {
string q("select attname, "
"atttypid "
"from pg_attribute join pg_class c on( c.oid = attrelid ) "
"join pg_namespace n on n.oid = relnamespace "
"where not attisdropped "
"and attname not in "
"('xmin', 'xmax', 'ctid', 'cmin', 'cmax', 'tableoid', 'oid') ");
q += " and relname = " + w.quote(t->name);
q += " and nspname = " + w.quote(t->schema);
r = w.exec(q);
for (auto row : r) {
column c(row[0].as<string>(), oid2type[row[1].as<OID>()]);
t->columns().push_back(c);
}
q = "select conname from pg_class t "
"join pg_constraint c on (t.oid = c.conrelid) "
"where contype in ('f', 'u', 'p') ";
q += " and relnamespace = " " (select oid from pg_namespace where nspname = " + w.quote(t->schema) + ")";
q += " and relname = " + w.quote(t->name);
for (auto row : w.exec(q)) {
t->constraints.push_back(row[0].as<string>());
}
}
cerr << "done." << endl;
cerr << "Loading operators...";
r = w.exec("select oprname, oprleft,"
"oprright, oprresult "
"from pg_catalog.pg_operator "
"where 0 not in (oprresult, oprright, oprleft) ");
for (auto row : r) {
op o(row[0].as<string>(),
oid2type[row[1].as<OID>()],
oid2type[row[2].as<OID>()],
oid2type[row[3].as<OID>()]);
register_operator(o);
}
cerr << "done." << endl;
cerr << "Loading routines...";
r = w.exec("select (select nspname from pg_namespace where oid = pronamespace), oid, prorettype, proname "
"from pg_proc "
"where prorettype::regtype::text not in ('event_trigger', 'trigger', 'opaque', 'internal') "
"and proname <> 'pg_event_trigger_table_rewrite_reason' "
"and proname <> 'pg_event_trigger_table_rewrite_oid' "
"and proname !~ '^ri_fkey_' "
"and not (proretset or " + procedure_is_aggregate + " or " + procedure_is_window + ") ");
for (auto row : r) {
routine proc(row[0].as<string>(),
row[1].as<string>(),
oid2type[row[2].as<long>()],
row[3].as<string>());
register_routine(proc);
}
cerr << "done." << endl;
cerr << "Loading routine parameters...";
for (auto &proc : routines) {
string q("select unnest(proargtypes) "
"from pg_proc ");
q += " where oid = " + w.quote(proc.specific_name);
r = w.exec(q);
for (auto row : r) {
sqltype *t = oid2type[row[0].as<OID>()];
assert(t);
proc.argtypes.push_back(t);
}
}
cerr << "done." << endl;
cerr << "Loading aggregates...";
r = w.exec("select (select nspname from pg_namespace where oid = pronamespace), oid, prorettype, proname "
"from pg_proc "
"where prorettype::regtype::text not in ('event_trigger', 'trigger', 'opaque', 'internal') "
"and proname not in ('pg_event_trigger_table_rewrite_reason') "
"and proname not in ('percentile_cont', 'dense_rank', 'cume_dist', "
"'rank', 'test_rank', 'percent_rank', 'percentile_disc', 'mode', 'test_percentile_disc') "
"and proname !~ '^ri_fkey_' "
"and not (proretset or " + procedure_is_window + ") "
"and " + procedure_is_aggregate);
for (auto row : r) {
routine proc(row[0].as<string>(),
row[1].as<string>(),
oid2type[row[2].as<OID>()],
row[3].as<string>());
register_aggregate(proc);
}
cerr << "done." << endl;
cerr << "Loading aggregate parameters...";
for (auto &proc : aggregates) {
string q("select unnest(proargtypes) "
"from pg_proc ");
q += " where oid = " + w.quote(proc.specific_name);
r = w.exec(q);
for (auto row : r) {
sqltype *t = oid2type[row[0].as<OID>()];
assert(t);
proc.argtypes.push_back(t);
}
}
cerr << "done." << endl;
#ifdef HAVE_LIBPQXX7
c.close();
#else
c.disconnect();
#endif
generate_indexes();
}
extern "C" {
void dut_libpq_notice_rx(void *arg, const PGresult *res);
}
void dut_libpq_notice_rx(void *arg, const PGresult *res)
{
(void) arg;
(void) res;
}
void dut_libpq::connect(std::string &conninfo)
{
if (conn) {
PQfinish(conn);
}
conn = PQconnectdb(conninfo.c_str());
if (PQstatus(conn) != CONNECTION_OK)
{
char *errmsg = PQerrorMessage(conn);
if (strlen(errmsg))
throw dut::broken(errmsg, "08001");
}
command("set statement_timeout to '1s'");
command("set client_min_messages to 'ERROR';");
command("set application_name to '" PACKAGE "::dut';");
PQsetNoticeReceiver(conn, dut_libpq_notice_rx, (void *) 0);
}
dut_libpq::dut_libpq(std::string conninfo)
: conninfo_(conninfo)
{
connect(conninfo);
}
void dut_libpq::command(const std::string &stmt)
{
if (!conn)
connect(conninfo_);
PGresult *res = PQexec(conn, stmt.c_str());
switch (PQresultStatus(res)) {
case PGRES_FATAL_ERROR:
default:
{
const char *errmsg = PQresultErrorMessage(res);
if (!errmsg || !strlen(errmsg))
errmsg = PQerrorMessage(conn);
const char *sqlstate = PQresultErrorField(res, PG_DIAG_SQLSTATE);
if (!sqlstate || !strlen(sqlstate))
sqlstate = (CONNECTION_OK != PQstatus(conn)) ? "08000" : "?????";
std::string error_string(errmsg);
std::string sqlstate_string(sqlstate);
PQclear(res);
if (CONNECTION_OK != PQstatus(conn)) {
PQfinish(conn);
conn = 0;
throw dut::broken(error_string.c_str(), sqlstate_string.c_str());
}
if (sqlstate_string == "42601")
throw dut::syntax(error_string.c_str(), sqlstate_string.c_str());
else
throw dut::failure(error_string.c_str(), sqlstate_string.c_str());
}
case PGRES_NONFATAL_ERROR:
case PGRES_TUPLES_OK:
case PGRES_SINGLE_TUPLE:
case PGRES_COMMAND_OK:
PQclear(res);
return;
}
}
void dut_libpq::test(const std::string &stmt)
{
command("ROLLBACK;");
command("BEGIN;");
command(stmt.c_str());
command("ROLLBACK;");
}
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