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spi.c
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spi.c
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#include "include.h"
#if PG_VERSION_NUM < 150000
#include <access/xact.h>
#include <commands/async.h>
#endif
#include <executor/spi_priv.h>
#include <pgstat.h>
#include <storage/proc.h>
#include <tcop/utility.h>
#include <utils/lsyscache.h>
#include <utils/memutils.h>
#include <utils/snapmgr.h>
#include <utils/timeout.h>
typedef enum STMT_TYPE {
STMT_BIND,
STMT_EXECUTE,
STMT_FETCH,
STMT_PARSE,
STMT_STATEMENT,
} STMT_TYPE;
static bool was_logged;
static const char *stmt_type(STMT_TYPE stmt) {
switch (stmt) {
case STMT_BIND: return "bind";
case STMT_EXECUTE: return "execute";
case STMT_FETCH: return "fetch";
case STMT_PARSE: return "parse";
case STMT_STATEMENT: default: return "statement";
}
}
static int errdetail_params_my(int nargs, Oid *argtypes, Datum *values, const char *nulls) {
if (values && nargs > 0 && !IsAbortedTransactionBlockState()) {
MemoryContext tmpCxt = AllocSetContextCreate(CurrentMemoryContext, "BuildParamLogString", ALLOCSET_DEFAULT_SIZES);
MemoryContext oldcontext = MemoryContextSwitchTo(tmpCxt);
StringInfoData buf;
initStringInfo(&buf);
for (int i = 0; i < nargs; i++) {
appendStringInfo(&buf, "%s$%d = ", i > 0 ? ", " : "", i + 1);
if ((nulls && nulls[i] == 'n') || !OidIsValid(argtypes[i])) appendStringInfoString(&buf, "NULL"); else {
bool typisvarlena;
char *pstring;
Oid typoutput;
getTypeOutputInfo(argtypes[i], &typoutput, &typisvarlena);
pstring = OidOutputFunctionCall(typoutput, values[i]);
appendStringInfoCharMacro(&buf, '\'');
for (char *p = pstring; *p; p++) {
if (*p == '\'') appendStringInfoCharMacro(&buf, *p);
appendStringInfoCharMacro(&buf, *p);
}
appendStringInfoCharMacro(&buf, '\'');
}
}
errdetail("parameters: %s", buf.data);
MemoryContextSwitchTo(oldcontext);
MemoryContextDelete(tmpCxt);
}
return 0;
}
static void check_log_statement_my(STMT_TYPE stmt, const char *src, int nargs, Oid *argtypes, Datum *values, const char *nulls, bool logged) {
if (!logged) was_logged = false;
else if (log_statement == LOGSTMT_NONE) was_logged = false;
else if (log_statement == LOGSTMT_ALL) was_logged = true;
else was_logged = false;
debug_query_string = src;
SetCurrentStatementStartTimestamp();
if (!logged) ereport(DEBUG2, (errmsg("%s: %s", stmt_type(stmt), src), errhidestmt(true)));
else if (was_logged) ereport(LOG, (errmsg("%s: %s", stmt_type(stmt), src), errhidestmt(true), errhidestmt(true), errdetail_params_my(nargs, argtypes, values, nulls)));
}
static void check_log_duration_my(STMT_TYPE stmt, const char *src, int nargs, Oid *argtypes, Datum *values, const char *nulls) {
char msec_str[32];
switch (check_log_duration(msec_str, was_logged)) {
case 1: ereport(LOG, (errmsg("duration: %s ms", msec_str), errhidestmt(true))); break;
case 2: ereport(LOG, (errmsg("duration: %s ms %s: %s", msec_str, stmt_type(stmt), src), errhidestmt(true), errdetail_params_my(nargs, argtypes, values, nulls))); break;
}
debug_query_string = NULL;
was_logged = false;
}
Datum SPI_getbinval_my(HeapTuple tuple, TupleDesc tupdesc, const char *fname, bool allow_null, Oid typeid) {
bool isnull;
Datum datum;
int fnumber = SPI_fnumber(tupdesc, fname);
if (SPI_gettypeid(tupdesc, fnumber) != typeid) ereport(ERROR, (errcode(ERRCODE_MOST_SPECIFIC_TYPE_MISMATCH), errmsg("type of column \"%s\" must be \"%i\"", fname, typeid)));
datum = SPI_getbinval(tuple, tupdesc, fnumber, &isnull);
if (allow_null) return datum;
if (isnull) ereport(ERROR, (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED), errmsg("column \"%s\" must not be null", fname)));
return datum;
}
Portal SPI_cursor_open_my(const char *src, SPIPlanPtr plan, Datum *values, const char *nulls) {
Portal portal;
SPI_freetuptable(SPI_tuptable);
check_log_statement_my(STMT_BIND, src, plan->nargs, plan->argtypes, values, nulls, false);
if (!(portal = SPI_cursor_open(NULL, plan, values, nulls, false))) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_cursor_open failed"), errdetail("%s", SPI_result_code_string(SPI_result))));
check_log_duration_my(STMT_BIND, src, plan->nargs, plan->argtypes, values, nulls);
return portal;
}
Portal SPI_cursor_open_with_args_my(const char *src, int nargs, Oid *argtypes, Datum *values, const char *nulls) {
Portal portal;
SPI_freetuptable(SPI_tuptable);
check_log_statement_my(STMT_BIND, src, nargs, argtypes, values, nulls, false);
if (!(portal = SPI_cursor_open_with_args(NULL, src, nargs, argtypes, values, nulls, false, 0))) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_cursor_open_with_args failed"), errdetail("%s", SPI_result_code_string(SPI_result)), errcontext("%s", src)));
check_log_duration_my(STMT_BIND, src, nargs, argtypes, values, nulls);
return portal;
}
SPIPlanPtr SPI_prepare_my(const char *src, int nargs, Oid *argtypes) {
int rc;
SPIPlanPtr plan;
check_log_statement_my(STMT_PARSE, src, 0, NULL, NULL, NULL, false);
if (!(plan = SPI_prepare(src, nargs, argtypes))) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_prepare failed"), errdetail("%s", SPI_result_code_string(SPI_result)), errcontext("%s", src)));
if ((rc = SPI_keepplan(plan))) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_keepplan failed"), errdetail("%s", SPI_result_code_string(rc)), errcontext("%s", src)));
check_log_duration_my(STMT_PARSE, src, 0, NULL, NULL, NULL);
return plan;
}
void SPI_connect_my(const char *src) {
int rc;
debug_query_string = src;
pgstat_report_activity(STATE_RUNNING, src);
SetCurrentStatementStartTimestamp();
StartTransactionCommand();
if ((rc = SPI_connect()) != SPI_OK_CONNECT) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_connect failed"), errdetail("%s", SPI_result_code_string(rc)), errcontext("%s", src)));
PushActiveSnapshot(GetTransactionSnapshot());
StatementTimeout > 0 ? enable_timeout_after(STATEMENT_TIMEOUT, StatementTimeout) : disable_timeout(STATEMENT_TIMEOUT, false);
}
void SPI_cursor_close_my(Portal portal) {
SPI_freetuptable(SPI_tuptable);
SPI_cursor_close(portal);
}
void SPI_cursor_fetch_my(const char *src, Portal portal, bool forward, long count) {
check_log_statement_my(STMT_FETCH, src, 0, NULL, NULL, NULL, true);
SPI_freetuptable(SPI_tuptable);
SPI_cursor_fetch(portal, forward, count);
check_log_duration_my(STMT_FETCH, src, 0, NULL, NULL, NULL);
}
void SPI_execute_plan_my(const char *src, SPIPlanPtr plan, Datum *values, const char *nulls, int res) {
int rc;
SPI_freetuptable(SPI_tuptable);
check_log_statement_my(STMT_EXECUTE, src, plan->nargs, plan->argtypes, values, nulls, true);
if ((rc = SPI_execute_plan(plan, values, nulls, false, 0)) != res) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_execute_plan failed"), errdetail("%s while expecting %s", SPI_result_code_string(rc), SPI_result_code_string(res))));
check_log_duration_my(STMT_EXECUTE, src, plan->nargs, plan->argtypes, values, nulls);
}
void SPI_execute_with_args_my(const char *src, int nargs, Oid *argtypes, Datum *values, const char *nulls, int res) {
int rc;
SPI_freetuptable(SPI_tuptable);
check_log_statement_my(STMT_STATEMENT, src, nargs, argtypes, values, nulls, true);
if ((rc = SPI_execute_with_args(src, nargs, argtypes, values, nulls, false, 0)) != res) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_execute_with_args failed"), errdetail("%s while expecting %s", SPI_result_code_string(rc), SPI_result_code_string(res)), errcontext("%s", src)));
check_log_duration_my(STMT_STATEMENT, src, nargs, argtypes, values, nulls);
}
void SPI_finish_my(void) {
int rc;
disable_timeout(STATEMENT_TIMEOUT, false);
PopActiveSnapshot();
if ((rc = SPI_finish()) != SPI_OK_FINISH) ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR), errmsg("SPI_finish failed"), errdetail("%s", SPI_result_code_string(rc))));
#if PG_VERSION_NUM < 150000
ProcessCompletedNotifies();
#endif
CommitTransactionCommand();
was_logged = false;
pgstat_report_stat(false);
debug_query_string = NULL;
pgstat_report_activity(STATE_IDLE, NULL);
}